Revenue from Contract with Customer [Abstract] Revenue from External Customers by Products and Services [Table] Revenue from External Customers by Products and Services [Table] Receivable Type [Axis] Receivable Type [Axis] Receivable [Domain] Receivable [Domain] Sales and services Trade Accounts Receivable [Member] Leasing Lease Receivable [Member] Lease Receivable [Member] Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Trade accounts receivable Accounts Receivable, Gross, Current Contract assets Contract with Customer, Asset, Gross Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Total trade accounts receivable and contract assets, net Accounts Receivable, Net, Current Trade accounts receivable - DISH Network Accounts Receivable, Related Parties, Current Contract liabilities: Contract with Customer, Liability [Abstract] Current Contract with Customer, Liability, Current Noncurrent Contract with Customer, Liability, Noncurrent Total contract liabilities Contract with Customer, Liability Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Buildings and improvements Building and Building Improvements [Member] Furniture, fixtures, equipment and other Furniture Fixtures Equipment And Other [Member] Represents furniture, fixtures, equipment and other property, plant and equipment owned by the entity. Customer rental equipment Customer Rental Equipment [Member] Represents information pertaining to customer rental equipment. Satellites Satellites [Member] Represents the information pertaining to satellites assets owned by the entity. Property and equipment Property, Plant and Equipment [Line Items] Depreciation expense Depreciation [Abstract] Total depreciation expense Depreciation Contract with Customer, Asset and Liability Contract with Customer, Asset and Liability [Table Text Block] Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Equity [Abstract] Other Comprehensive Income (Loss) and Related Tax Effects Other Comprehensive Income, Noncontrolling Interest [Text Block] Investments [Abstract] Schedule of Investments [Table] Schedule of Investments [Table] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Corporate bonds Corporate Bond Securities [Member] Other Other Debt Obligations [Member] Marketable investment securities and other investments Debt Securities, Available-for-sale [Line Items] Debt securities Debt Securities, Available-for-sale Equity securities Equity Securities, FV-NI Total marketable investment securities Marketable Securities Goodwill and Intangible Assets Disclosure [Abstract] Estimated future amortization of the entity's intangible assets Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2019 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Thereafter Finite-Lived Intangible Assets, Amortization Expense, after Year Five Carrying Amount Finite-Lived Intangible Assets, Net Supplemental Guarantor and Non-Guarantor Financial Information Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] HSS Parent Company [Member] Guarantor Subsidiaries Guarantor Subsidiaries [Member] Non-Guarantor Subsidiaries Non-Guarantor Subsidiaries [Member] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Eliminations Consolidation, Eliminations [Member] Condensed Consolidating Balance Sheet Condensed Balance Sheet Statements, Captions [Line Items] Assets Assets [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Marketable investment securities, at fair value Marketable Securities, Current Trade accounts receivable and contract assets, net Trade accounts receivable - DISH Network Inventory Inventory, Net Advances to affiliates, net Due from Related Parties, Current Other current assets Other Assets, Miscellaneous, Current Total current assets Assets, Current Property and equipment, net Property, Plant and Equipment, Net Regulatory authorizations Other Intangible Assets, Net Goodwill Goodwill Other intangible assets, net Investments in unconsolidated entities Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Investment in subsidiaries Investments in Subsidiaries Total investments in (A) an entity in which the entity has significant influence and (B) an entity in which the reporting entity shares control of the entity with another party or group. Advances to affiliates Due from Related Parties, Noncurrent Deferred tax asset Deferred Tax Assets, Net Other noncurrent assets, net Other Assets, Miscellaneous, Noncurrent Total assets Assets Liabilities and Shareholders' Equity (Deficit) Liabilities and Equity [Abstract] Trade accounts payable Accounts Payable, Trade, Current Trade accounts payable - DISH Network Accounts Payable, Related Parties, Current Current portion of long-term debt and capital lease obligations Long-term Debt and Capital Lease Obligations, Current Advances from affiliates, net Due to Related Parties, Current Accrued expenses and other Other Sundry Liabilities, Current Total current liabilities Liabilities, Current Long-term debt and capital lease obligations, net Long-term Debt and Capital Lease Obligations Deferred tax liabilities, net Deferred Tax Liabilities, Net, Noncurrent Advances from affiliates Due to Related Parties, Noncurrent Other noncurrent liabilities Other Liabilities and Deferred Revenue, Noncurrent Total HSS shareholders’ equity Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total liabilities and shareholders’ equity Liabilities and Equity Equity Method Investments and Joint Ventures [Abstract] Equity method Equity Method Investments Other equity investments without a readily determinable fair value Equity Securities without Readily Determinable Fair Value, Amount Total investments in unconsolidated entities Dividends received from unconsolidated entity Proceeds from Equity Method Investment, Distribution Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Current Assets Other Current Assets [Member] Satellites, Owned Satellites, Owned [Member] Satellites, Owned [Member] EchoStar 105/SES-11 EchoStar 105/SES-11 [Member] EchoStar 105/SES-11 satelite [Member] EchoStar X Echo Star X [Member] Represents information pertaining to satellites assets owned by the entity, EchoStar X. Accumulated depreciation on satellites acquired under capital leases Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation Cash paid for income taxes Interest Costs Capitalized Depreciation expense - capital leases Capital Leases, Income Statement, Amortization Expense Number of satellites utilized in geostationary orbit approximately 22,300 miles above the equator Number of Satellites in Geostationary Orbit, Utilized by Reporting Entity Number of satellites in geostationary orbit utilized by reporting entity. Number of satellites utilized under capital lease Capital Leased Assets, Number of Units Transfer of EchoStar 105/SES-11 payloads to SES in exchange for receivable Other Significant Noncash Transaction, Value of Consideration Received Number of solar array circuits affected Number Of Solar Array Circuits Affected Number of solar array circuits affected due to anomalies. Number of functional solar array circuits Number Of Functional Solar Array Circuits The number of functional solar array circuits remaining after solar anomalies. Term of lease contract Lessee, Finance Lease, Term of Contract Revenue reduction in period Revenue, Net, Reduction In Period Revenue, Net, Reduction In Period Condensed Financial Statements [Table] Condensed Financial Statements [Table] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net income (loss) to net cash flows from operating activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities Net cash flows from operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Purchases of marketable investment securities Payments to Acquire Available-for-sale Securities Sales and maturities of marketable investment securities Proceeds from Sale and Maturity of Debt Securities, Available-for-sale Expenditures for property and equipment Payments to Acquire Property, Plant, and Equipment Refunds and other receipts related to property and equipment Refunds and other receipts related to property and equipment The cash inflow associated with the refunds and other receipts related to property and equipment. Changes in restricted cash and cash equivalents Increase (Decrease) in Restricted Cash Investment in subsidiary Payments to Acquire Additional Interest in Subsidiaries Payment for EchoStar XXI launch services Payments to Acquire Other Productive Assets Expenditures for externally marketed software Payments to Develop Software Investment in unconsolidated entity Payments to Acquire Interest in Subsidiaries and Affiliates Other, net Payments for (Proceeds from) Other Investing Activities Net cash flows from investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Contribution (distributions) and advances (to) from parent, net Proceeds from Contributions from Parent Capital contribution from EchoStar Proceeds from Contributions from Affiliates Payments of debt issuance costs Payments of Debt Issuance Costs Repayment of Senior Secured Notes and related premium Repayments of Senior Debt Repayment of debt and capital lease obligations Repayments of Debt and Capital Lease Obligations Advances from (to) affiliates Increase (Decrease) in Due to Affiliates Repayment of in-orbit incentive obligations Repayments of Other Debt Other, net Proceeds from (Payments for) Other Financing Activities Proceeds from issuance of long-term debt Proceeds from Issuance of Debt Net cash flows from financing activities Net Cash Provided by (Used in) Financing Activities Effect of exchange rates on cash and cash equivalents Effect of Exchange Rate on Cash and Cash Equivalents Net increase (decrease) in cash and cash equivalents, including restricted amounts Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash and cash equivalents, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations Cash and cash equivalents, end of period Accounting Policies [Abstract] Schedule of New Accounting Pronouncements and Changes in Accounting Principles Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Revenue from Contract with Customer Revenue from Contract with Customer [Text Block] Debt and Capital Lease Obligations [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Senior Secured Notes: Secured Debt [Member] Senior Unsecured Notes: Unsecured Debt [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 6 1/2% Senior Secured Notes due 2019 Senior Secured Notes6.50 Percent Due2019 [Member] Represents details pertaining to 6 1/2 percent senior secured notes, which are due in 2019. 5 1/4% Senior Secured Notes due 2026 Senior Secured Notes 5.250 Percent Due 2026 [Member] 5.250% Senior Secured Notes Due 2026 [Member] 7 5/8% Senior Unsecured Notes due 2021 Senior Unsecured Notes 7.625 Percent Due2021 [Member] Represents detail pertaining to 7 5/8 percent senior unsecured notes due in 2021. 6 5/8% Senior Unsecured Notes due 2026 Senior Unsecured Notes 6.625 Percent Due 2026 [Member] 6.625% Senior Unsecured Notes Due 2026 [Member] Less: Unamortized debt issuance costs Unamortized Debt Issuance Costs [Member] Unamortized debt issuance costs Debt Debt Instrument [Line Items] Interest rate Debt Instrument, Interest Rate, Stated Percentage Effective Interest Rate Debt Instrument, Interest Rate, Effective Percentage Carrying Amount Long-term Debt, Gross Less: Unamortized debt issuance costs Debt Issuance Costs, Noncurrent, Net Subtotal Long-term Debt Capital lease obligations Capital Lease Obligations Total debt and capital lease obligations Debt and Capital Lease Obligations Less: Current portion Fair Value Debt Instrument, Fair Value Disclosure Amount of debt repurchased Debt Instrument, Repurchase Amount Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Scenario, Forecast Scenario, Forecast [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] EchoStar Technologies Business EchoStar Technologies Business [Member] Represents EchoStar Technologies Business, a business segment of the entity which designs, develops and distributes digital set-top boxes and related products and technology and also provides digital broadcast operations. Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Additional Paid-In Capital Additional Paid-in Capital [Member] EchoStar XIX EchoStar XIX [Member] EchoStar XIX [Member] EchoStar XXIII EchoStar XXIII [Member] EchoStar XXIII [Member] EchoStar XXI EchoStar XXI [Member] EchoStar XXI [Member] EchoStar XVI Echo Star X V I [Member] Represents the details pertaining to EchoStar XVI. QuetzSat-1 QuetzSat-1 [Member] Represents the information pertaining to satellite QuetzSat-1. Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Construction Management Services Construction Management Services [Member] Construction Management Services [Member] Related Party Transactions, Lessee, Operating Lease, Real Estate Related Party Transactions, Lessee, Operating Lease, Real Estate [Member] Lease arrangements of real estate properties from related party to reporting entity. Related Party Transactions, Lessor, Operating Lease, Real Estate Related Party Transactions, Lessor, Operating Lease, Real Estate [Member] Lease arrangements of real estate properties from reporting entity to related party. Other noncurrent assets Other Noncurrent Assets [Member] Related-party advances Related-Party Advances [Member] Related-Party Advances [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] EchoStar Majority Shareholder [Member] EOC EchoStar Operating L.L.C. [Member] EchoStar Operating L.L.C. [Member] EchoStar Mobile Limited EchoStar Mobile Limited [Member] [Member] EchoStar Mobile Limited [Member] Dish Mexico Dish Mexico [Member] Represents the details pertaining to Dish Mexico. DISH Network D I S H Network [Member] Represents the details pertaining to Dish Network. Telesat Telesat Canada [Member] Represents details pertaining to Telesat Canada. SES Latin America S E S Latin America [Member] Represents the details pertaining to SES Latin America S.A. Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] Ciel Ciel Satellite Holdings Inc [Member] Represents information pertaining to Ciel Satellite Holdings Inc. EchoStar And Hughes Satellite Systems Corporation EchoStar And Hughes Satellite Systems Corporation [Member] Represents information pertaining to the EchoStar and Hughes Satellite Systems Corporation. Type of Arrangement and Non-arrangement Transactions [Axis] Type of Arrangement and Non-arrangement Transactions [Axis] Arrangements and Non-arrangement Transactions [Domain] Arrangements and Non-arrangement Transactions [Domain] Satellite and Tracking Stock Transaction Satellite And Tracking Stock Transaction [Member] Represents information pertaining to the Satellite and Tracking Stock Transaction. Satellite Capacity Lease Agreement Satellite Capacity Lease Agreement [Member] Satellite Capacity Lease Agreement [Member] TeleSat Transponder Agreement TeleSat Transponder Agreement [Member] Represents the details pertaining to agreement with TeleSat Canada to lease satellite capacity from TeleSat Canada DISH Nimiq 5 Agreement DISH Nimiq 5 Agreement [Member] Represents the details pertaining to the DISH Nimiq 5 Agreement. Satellite Services Agreement Satellite Services Agreement [Member] Satellite Service Agreements [Member] 103 Spectrum Development Agreement 103 Spectrum Development Agreement [Member] Represents information pertaining to the 103 Spectrum Development Agreement. TT&C Agreement Telemetry Tracking And Control Agreement [Member] Represents the details pertaining to the TT and C Agreement. Cheyenne Lease Agreement Cheyenne Lease Agreement [Member] Represents the details pertaining to the Cheyenne Lease Agreement. TerreStar Agreement TerreStar Agreement [Member] TerreStar Agreement [Member] Hughes Broadband Distribution Agreement Hughes Broadband Distribution Agreement [Member] Represents the details pertaining to the Hughes Broadband Distribution Agreement. DBSD North America Agreement D B S D North America Agreement [Member] Represents details pertaining to DBSD North America Agreement. Hughes Equipment And Service Agreement Hughes Equipment And Service Agreement [Member] Hughes Equipment And Service Agreement [Member] RUS Implementation Agreement RUS Service Implementation Agreement [Member] Represents information pertaining to RUS Service Implementation Agreement. EchoStar Amended and Restated Professional Services Agreement EchoStar Amended and Restated Professional Services Agreement [Member] Represents details pertaining to the EchoStar Amended and Restated Professional Services Agreement. American Fork Occupancy License Agreement American Fork Occupancy License Agreement [Member] American Fork Occupancy License Agreement [Member] Collocation and Antenna Space Agreements Collocation and Antenna Space Agreements [Member] Represents the details pertaining to the Collocation and Antenna Space Agreements. Share Exchange Agreement Share Exchange Agreement [Member] Share Exchange Agreement [Member] Hughes Broadband Master Services Agreement Hughes Broadband Master Services Agreement [Member] Represents the details pertaining to the Hughes Broadband Master Services Agreement. Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Hughes Retail Preferred Tracking Stock Preferred Tracking Stock [Member] Represents information pertaining to tracking stock, a type of capital stock that the issuing company intends to reflect or track the economic performance of a particular business component within the company. Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] One-year LIBOR One-Year London Interbank Offered Rate [Member] One-Year London Interbank Offered Rate [Member] Subsegments [Axis] Subsegments [Axis] Subsegments [Domain] Subsegments [Domain] Hughes Retail Group Hughes Retail Group [Member] Represents information pertaining to the Hughes Retail Group Related party transactions Related Party Transaction [Line Items] Required minimum notice period for termination of agreement by the reporting entity Related Party Transactions Agreement, Termination Notice Required by Reporting Entity Related party transactions agreement termination notice required by the reporting entity. Expense recorded for services provided Related Party Transaction, Expenses from Transactions with Related Party Annual rates Debt Instrument, Basis Spread on Variable Rate Stock-based compensation Adjustments To Additional Paid In Capital, Contribution Of Satellite, Net of Deferred Taxes Adjustments To Additional Paid In Capital, Contribution Of Satellite, Net of Deferred Taxes Contribution of noncash net assets pursuant to Share Exchange Agreement (Note 1) Contribution of Property Deferred tax liabilities, deferred expense Deferred Tax Liabilities, Deferred Expense Transfer of launch contracts from (to) EchoStar Transfer Of Launch Service Contracts Value of launch service contracts transferred in noncash investing and financing activities. Interest rate on converted receivables loan Financing Receivable, Stated Interest Rate Financing Receivable, Stated Interest Rate Revenue from related parties Revenue from Related Parties Receivables from related parties Accounts Receivable, Related Parties Related party costs Related Party Costs Percentage of economic interest in the Hughes Retail Group Related Party Transactions Percentage of Economic Interest Held Represents the percentage of economic interest held an entity. Agreement term Related Party Transactions Agreement, Term Related party transactions agreement term. Agreement term from commencement of service date Related Party Transactions Agreement Term from Commencement of Service Date Related party transactions agreement term from commencement of service date. Renewal option, reduction Renewal Option, Reduction in Years Renewal Option, Reduction in Years Additional term of renewal option Related Party Transactions, Agreement Renewal Option Additional Term Represents the additional term of renewal option. Number of DBS transponders available to receive services Related Party Transactions, Number of DBS Transponders Available Related party transactions, number of DBS transponders available. Number of DBS transponders currently receiving services Related Party Transactions, Number of DBS Transponders Receiving Services Related party transactions number of DBS transponders receiving services. Number of DBS transponders receiving services from related party Related Party Transactions, Number of DBS Transponders Receiving Services Sublease Related party transactions number of DBS transponders receiving sublease services. Minimum required notice period for termination of agreement by related party Related Party Transactions Agreement Termination Required Notice Period from Related Party, Minimum Related party transactions agreement termination required notice period from related party minimum. Required minimum notice period for termination of agreement after lease extension Related Party Transactions, Required Minimum Notice Period for Termination of Agreement After Lease Extension Related Party Transactions, Required Minimum Notice Period for Termination of Agreement After Lease Extension Required minimum notice for termination of agreement Related Party Transactions, Required Minimum Notice Period for Termination of Agreement Related party transactions required minimum notice period for termination of agreement. Automatic renewal period Related Party Transactions Agreement, Automatic Renewal Period Related party transactions agreement automatic renewal period. Ownership interest acquired by related party (as a percent) Business Combination, Ownership Percentage Acquired by Related Party Business combination, ownership percentage acquired by related party. Grants receivable Related Party Transactions, Grants Receivable by Related Party Related party transactions, grants receivable by related party. Term of renewal option Related Party Transactions Agreement, Renewal Option, Term Related party transactions agreement renewal option term. Required minimum notice for termination of individual service Related Party Transactions, Required Minimum Notice Period for Termination of Specific Service Related party transactions required minimum notice period for termination of specific service. Renewal notice required by reporting entity Related Party Transactions Agreement, Renewal Notice Required by Reporting Entity Related Party Transactions Agreement, Renewal Notice Required by Reporting Entity Number of satellites transferred Related Party Transactions Number of Owned Satellites Transferred Represents the number of owned satellites transferred. Proceeds from issuance of Hughes Retail Preferred Tracking Stock Proceeds from Issuance of Preferred Stock and Preference Stock Cost of sales - services and other (exclusive of depreciation and amortization) Cost of Goods and Services Sold Income Tax Disclosure [Abstract] Income Taxes Income Tax Disclosure [Text Block] Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Employee Stock Purchase Plan Employee Stock [Member] Class A common stock Common Class A [Member] EchoStar Corporation Echo Star Corporation [Member] Represents information pertaining to the EchoStar Corporation. Employee benefit plans Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number of shares authorized for issue (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Number of shares that remain available for issuance (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Required service period Share-based Compensation Arrangement by Share-based Payment Award, Award Requisite Service Period Maximum fair value of capital stock permitted to be purchased by employees in any one year under ESPP Employee Stock Purchase Plan Maximum Fair Value of Common Stock Permitted to be Purchased Per Annum Employee Stock Purchase Plan maximum fair value of common stock permitted to be purchased per annum. Purchase price as percentage of closing market price on the last business day of each calendar quarter under ESPP Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent Employee purchases of common stock under ESPP (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Supplemental Guarantor and Non-Guarantor Financial Information Condensed Financial Statements [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Property and equipment financed under capital lease obligations Capital Lease Obligations Incurred Increase (decrease) in capital expenditures included in accounts payable, net Increase (Decrease) In Capital Expenditures Incurred But Not Yet Paid The increase (decrease) during the reporting period of future cash outflow to pay for purchases of fixed assets that have occurred. Transfer of launch service contracts from (to) EchoStar Noncash net assets exchanged for HSS Tracking Stock (Note 1) Noncash Or Part Noncash Transaction, Net Assets Exchange, Preferred Stock Repurchase Amount represent noncash assets transferred in exchange for repurchase of preferred stock Capitalized in-orbit incentive obligations Liabilities Assumed Contribution of EchoStar XIX satellite Contribution Of Satellite Value of satellite contributed in noncash investing and financing activities Investment Securities Investments in Debt and Equity Instruments, Cash and Cash Equivalents, Unrealized and Realized Gains (Losses) [Text Block] Inventory, Net [Abstract] Schedule of inventory Schedule of Inventory, Current [Table Text Block] Inventory Inventory Disclosure [Text Block] Schedule of reclassifications out of accumulated other comprehensive loss Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Services and other revenue Services And Other Revenue [Member] Services And Other Revenue [Member] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Axis] Initial Application Period Cumulative Effect Transition [Domain] Initial Application Period Cumulative Effect Transition [Domain] Balances If We Had Not Adopted the New Standards Calculated under Revenue Guidance in Effect before Topic 606 [Member] Balances If We Had Not Adopted the New Standards Calculated Under Revenue Guidance In Effect Before Topic 606 And Accounting Standards Update 2016-01 [Member] Calculated Under Revenue Guidance In Effect Before Topic 606 And Accounting Standards Update 2016-01 New Revenue Standard Difference between Revenue Guidance in Effect before and after Topic 606 [Member] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] Accounting Standards Update 2014-09 Accounting Standards Update 2014-09 [Member] Accounting Standards Update 2016-01 Accounting Standards Update 2016-01 [Member] Accounting Standards Update 2014-09 And 2016-01 Accounting Standards Update 2014-09 And 2016-01 [Member] Accounting Standards Update 2014-09 And [Member] New accounting pronouncement disclosures New Accounting Pronouncements or Change in Accounting Principle [Line Items] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Other current assets Other Assets, Current Other noncurrent assets, net Other Assets, Noncurrent Liabilities: Liabilities [Abstract] Contract liabilities Accrued expenses and other Other Accrued Liabilities, Current Total liabilities Liabilities Stockholders’ Equity: Stockholders' Equity Attributable to Parent [Abstract] Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated earnings Retained Earnings (Accumulated Deficit) Total shareholders’ equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Income Statement [Abstract] Income Statement [Abstract] Revenue: Revenues [Abstract] Total revenue Revenue from Contract with Customer, Excluding Assessed Tax Costs and expenses: Costs and Expenses [Abstract] Selling, general and administrative expenses Selling, General and Administrative Expense Total costs and expenses Costs and Expenses Operating income (loss) Operating Income (Loss) Other income (expense): Other Income and Expenses [Abstract] Interest expense, net of amounts capitalized Interest Expense Gains (losses) on investments, net Gain (Loss) on Investments Total other expense, net Total Nonoperating Income (Expense), Interest And Debt Expense, and Income (Loss) From Equity Method Investments Represents, in the aggregate, total other income (expense), including but not limited to: income or (expense) from ancillary business-related activities; interest and debt related expenses associated with nonoperating financing activities of the entity; and the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied, which includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax benefit (provision), net Income Tax Expense (Benefit) Net income Net income attributable to HSS Net Income (Loss) Available to Common Stockholders, Basic Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Unrealized gains (losses) on available-for-sale securities and other Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, before Reclassification Adjustments, after Tax Other-than-temporary impairment loss on available-for-sale securities Other than Temporary Impairment Losses, Investments, Reclassification Adjustment of Noncredit Portion Included in Net Income, Availabe-for-sale Securities, before Tax Total other comprehensive gain (loss), net of tax Other Comprehensive Income (Loss), Net of Tax Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income attributable to HSS Comprehensive Income (Loss), Net of Tax, Attributable to Parent Statement [Table] Statement [Table] Software and Software Development Costs Software and Software Development Costs [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Selling, general and administrative expenses Selling, General and Administrative Expenses [Member] Weighted Average Weighted Average [Member] Capitalized Contract Cost [Axis] Capitalized Contract Cost [Axis] Capitalized Contract Cost [Domain] Capitalized Contract Cost [Domain] Contract Acquisition Costs Contract Acquisition Costs [Member] Contract Acquisition Costs [Member] Contract Fulfillment Costs Contract Fulfillment Costs [Member] Contract Fulfillment Costs [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Level 2 Fair Value, Inputs, Level 2 [Member] Statement [Line Items] Statement [Line Items] Restricted cash Restricted Cash Cash equivalents Cash Equivalents, at Carrying Value Gain (loss) from foreign currency transactions Foreign Currency Transaction Gain (Loss), before Tax In-orbit incentive obligations Obligations, Fair Value Disclosure Contract acquisition costs Capitalized Contract Cost, Net Capitalized contract cost amortization Capitalized Contract Cost, Amortization Capitalized computer software, net Capitalized Computer Software, Net Capitalized software development costs for software sold to customers Capitalized Software Development Costs for Software Sold to Customers Capitalized computer software costs Capitalized Computer Software, Additions Capitalized computer software, amortization Capitalized Computer Software, Amortization Software useful life Software Useful Life Useful life of software that is either acquired, internally developed, or modified to meet the entity's needs. Advertising expense Advertising Expense Segment Reporting [Abstract] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Schedule of Revenue by Major Customers, by Reporting Segments [Table] Operating segments Operating Segments [Member] Corporate and Other Segment Reconciling Items [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] All other Other Major Customers [Member] Represents other major customers of the entity. Hughes Business Hughes Business Segment [Member] Represents Hughes segment which provides equipment and services to the broadband communications marketplace. EchoStar Satellite Services Business EchoStar Satellite Services Business [Member] Represents Echo Star Satellite Services Business, a business segment of the entity which uses ten owned and leased in-orbit satellites and related FCC licenses to lease capacity on a full-time and occasional-use basis primarily to DISH Network. Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Revenue Sales [Member] Sales to each customer and its percentage of total revenue Revenue, Major Customer [Line Items] Percentage of total revenue Concentration Risk, Percentage Statement of Stockholders' Equity [Abstract] Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Accumulated Earnings Retained Earnings [Member] Noncontrolling Interests Noncontrolling Interest [Member] Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning balance Cumulative effect of adoption of ASU 2014-09 and ASU 2016-01 as of January 1, 2018 Cumulative Effect of New Accounting Principle in Period of Adoption Adjusted opening balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance Stock-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Transfer of launch service contracts from (to) EchoStar Adjustments to Additional Paid in Capital, Other Capital contribution from EchoStar Corporation Contribution Of Capital From Affiliate Contribution Of Capital From Affiliate Other comprehensive loss Other Comprehensive Income (Loss), Net of Tax, Excluding Other Equity Components Other Comprehensive Income (Loss), Net of Tax, Excluding Other Equity Components Net income Other, net Stockholders' Equity, Other Contribution of EchoStar XIX satellite, net of deferred tax Contribution of net assets pursuant to Share Exchange Agreement Adjustments To Additional Paid In Capital, Contribution of net assets pursuant to Share Exchange Adjustments To Additional Paid In Capital, Contribution of net assets pursuant to Share Exchange Exchange of uplinking business net assets for HSS Tracking Stock Adjustments To Additional Paid In Capital, Exchange of uplinking business Adjustments To Additional Paid In Capital, Exchange of uplinking business Ending balance Supplemental Financial Information Additional Financial Information Disclosure [Text Block] Cost of sales Cost of Sales [Member] Research and development expenses Research and Development Expense [Member] Research and development expenses Research and Development Expense Targeted or Tracking Stock, Stock [Table] Targeted or Tracking Stock, Stock [Table] Hughes Retail Preferred Tracking Stock Targeted or Tracking Stock, Stock [Line Items] Number of business segments Number of Reportable Segments Preferred Stock Preferred Stock [Member] Preferred Stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred Stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred Stock, shares issued (in shares) Preferred Stock, Shares Issued Preferred Stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Schedule of other intangible assets subject to amortization Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of estimated future amortization of intangible assets Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Investment [Table] Investment [Table] Equity Securities Equity Securities [Member] Investment [Line Items] Investment [Line Items] Debt securities with contractual maturities of one year or less Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Rolling within One Year, Fair Value Debt securities with contractual maturities exceeding one year Available For Sale Securities Debt Maturities After Next Rolling Twelve Months Fair Value Amount of available-for-sale debt securities at fair value maturing after the next rolling twelve months following the latest balance sheet presented. Equity securities current Available-for-sale Securities, Equity Securities, Current Equity trading securities Trading Securities, Equity Unrealized loss on available for sale securities Available-for-sale Equity Securities, Accumulated Gross Unrealized Loss, before Tax Other-than-temporary impairment loss on available-for-sale securities Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net Proceeds from sale of available for sale debt securities Proceeds from Sale of Debt Securities, Available-for-sale Realized gain (loss) from available for sale securities Debt Securities, Available-for-sale, Realized Gain (Loss) Schedule of Revenues from External Customers and Long-Lived Assets [Table] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] North America North America [Member] Central and South America South And Central America [Member] South And Central America [Member] All other All Other Geographic Segments [Member] Represents information pertaining to other geographical segments of the entity. Geographic Information Revenues from External Customers and Long-Lived Assets [Line Items] Long-lived assets Long-Lived Assets 2019 Capital Leases, Future Minimum Payments Due, Next Twelve Months 2020 Capital Leases, Future Minimum Payments Due in Two Years 2021 Capital Leases, Future Minimum Payments Due in Three Years 2022 Capital Leases, Future Minimum Payments Due in Four Years 2023 Capital Leases, Future Minimum Payments Due in Five Years Thereafter Capital Leases, Future Minimum Payments Due Thereafter Total minimum lease payments Capital Leases, Future Minimum Payments Due Less: Amount representing use of the orbital location and estimated executory costs including profit thereon, included in total minimum lease payments Capital Leases Future Minimum Payments Executory Costs and Orbital Location Lease Amounts to be paid by lessee to lessor for lease of orbital location, maintenance, insurance, and tax expenses related to the leased asset. Net minimum lease payments Capital Leases, Future Minimum Payments, Net Minimum Payments Less: Amount representing interest Capital Leases, Future Minimum Payments, Interest Included in Payments Present value of net minimum lease payments Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments Less: Current portion Capital Lease Obligations, Current Long-term portion of capital lease obligations Capital Lease Obligations, Noncurrent Corporate bonds Corporate Bond Securities, Excluding Fair Value Option [Member] Corporate Bond Securities, Excluding Fair Value Option [Member] Total available-for-sale debt securities Debt Securities, Excluding Fair Value Option [Member] Debt Securities, Excluding Fair Value Option [Member] Debt Security Amortized Cost Debt Securities, Available-for-sale, Amortized Cost Unrealized Gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Unrealized Losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Estimated Fair Value Quarterly Financial Information Disclosure [Abstract] Schedule of quarterly results of operations Quarterly Financial Information [Table Text Block] Document and Entity Information Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Document Type Document Type Document Period End Date Document Period End Date Amendment Flag Amendment Flag Current Fiscal Year End Date Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Emerging Growth Company Entity Emerging Growth Company Entity Small Business Entity Small Business Entity Shell Company Entity Shell Company Entity Public Float Entity Public Float Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Schedule of Investments in Unconsolidated Entities Equity Method Investments [Table Text Block] Schedule of carrying amounts and fair values of the entity's debt Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] Schedule of future minimum lease payments under capital lease obligations Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block] Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] SPACEWAY 3 S P A C E W A Y3 [Member] Represents the information pertaining to SPACEWAY 3 satellite. EchoStar XVII Echo Star X V I I [Member] Represents the information pertaining to satellites assets owned by the entity, EchoStar XVII satellite. EchoStar VII Echo Star V I I [Member] Represents information pertaining to satellites assets owned by the entity, EchoStar VII. EchoStar IX Echo Star I X [Member] Represents the information pertaining to satellites assets owned by the entity, EchoStar IX. EchoStar XI Echo Star X I [Member] Represents information pertaining to satellites assets owned by the entity, EchoStar XI. EchoStar XII Echo Star X I I [Member] Represents the information pertaining to satellites assets owned by the entity, EchoStar XII. EchoStar XIV Echo Star X I V [Member] Represents information pertaining to satellites assets owned by the entity, EchoStar XIV. Eutelsat 65 West A Eutelsat 65 West A [Member] Eutelsat 65 West A [Member] Telesat T19V Telesat 19V satellite [Member] Telesat 19V satellite [Member] Nimiq5 Nimiq5 [Member] Represents information pertaining to satellite Nimiq 15, which is leased from other third parties. Depreciable life Property, Plant and Equipment, Useful Life Commitments and Contingencies Disclosure [Abstract] Summary of contractual obligations Contractual Obligation, Fiscal Year Maturity Schedule [Table Text Block] Statement of Cash Flows [Abstract] Organization and Business Activities Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Defined Contribution Plan [Table] Defined Contribution Plan [Table] Retirement Plan Name [Axis] Retirement Plan Name [Axis] Retirement Plan Name [Domain] Retirement Plan Name [Domain] EchoStar 401(k) Plan Defined Contribution Plan Echo Star401 K Plan [Member] Represents information pertaining to the EchoStar 401(k) Plan. Roth 401(k) Plan Defined Contribution Plan Roth401k Plan [Member] Represents the information pertaining to Roth 401(k) plan. Employee benefit plans Schedule of Defined Contribution Benefit Plans Disclosures [Line Items] Contribution limit per employee, as a percentage of eligible compensation Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Employer matching contribution as a percentage of voluntary employee contributions under 401(k) plan Defined Contribution Plan, Employer Matching Contribution, Percent of Match Percentage of eligible compensation, matched 50% by employer Defined Contribution Plan Employer Match Employee Contribution Level Two Represents the second level of employee contributions (percentage of compensation) which are matched by the employer. Percentage of eligible compensation, matched 100% by employer Defined Contribution Plan Employer Match Employee Contribution Level One Represents the first level of employee contributions (percentage of compensation) which are matched by the employer. Employer maximum annual contribution per employee under 401(k) plan Defined Contribution Plan, Maximum Annual Contributions Per Employee, Amount Vesting percentage of matching contributions to eligible employees per year Defined Contribution Plan, Employers Matching Contribution, Annual Vesting Percentage Vesting percentage of matching contributions to eligible employees after specified period of service Defined Contribution Plan Employers Matching Contribution Annual Vesting Percentage after Specified Period of Service Percentage of employer's matching contributions to a defined contribution plan that vests in a given year after a specified period of service. Eligibility for employer matching contributions, period of service Defined Contribution Plan Eligible Period of Service for Matching Contribution The period of service required for eligibility for matching contributions by the employer. Matching contributions, net of forfeitures, made by the company during the year Defined Contribution Plan, Cost Discretionary contributions, net of forfeitures, fair value, under 401(k) plan Defined Contribution Plan, Employer Discretionary Contribution Amount Equipment Product [Member] Cost of sales - services and other/equipment (exclusive of deprecation and amortization) Selling, general and administrative expenses Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Impairment of long-lived asset Impairment of Long-Lived Assets Held-for-use Operating income Other income (expense): Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Net Equity in earnings of unconsolidated affiliate Income (Loss) from Equity Method Investments Other, net Other Nonoperating Income (Expense) Less: Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to HSS Comprehensive Income: Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Other comprehensive income (loss), net of tax: Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Unrealized gains (losses) on available-for-sale securities and other Amounts reclassified to net income: Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Recognition of realized gains on available-for-sale securities in net income Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Less: Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Quarterly Financial Data (Unaudited) Quarterly Financial Information [Text Block] Other comprehensive income or loss, tax (expense) benefit Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent, Parenthetical Disclosures [Abstract] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Cumulative Foreign Currency Translation Losses Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Unrealized Gain (Loss) On Available-For-Sale Securities Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Other AOCI Attributable To Parent, Other [Member] AOCI Attributable To Parent, Other [Member] Reclassifications out of AOCI Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Reclassification out of accumulated other comprehensive income (loss) AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Cumulative effect of adoption of the New Investment Standard Other comprehensive income (loss) before reclassifications Other Comprehensive Income (Loss), before Reclassifications, Net of Tax Amounts reclassified to net income Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Revenue recognized Contract with Customer, Liability, Revenue Recognized Bad debt expense Allowance for Loan and Lease Loss, Recovery of Bad Debts Remaining performance obligation Revenue, Remaining Performance Obligation, Amount Expected percent recognized in next twelve months Revenue, Remaining Performance Obligation, Recognition In Next Rolling Twelve Months, Percentage Revenue, Remaining Performance Obligation, Recognition In Next Rolling Twelve Months, Percentage Employee Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Foreign Foreign Tax Authority [Member] Federal Domestic Tax Authority [Member] State State and Local Jurisdiction [Member] Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Components of income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest [Abstract] Domestic Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Components of the (provision for) benefit from income taxes Income Tax Expense (Benefit), Continuing Operations [Abstract] Current benefit (provision): Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State Current State and Local Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Total current provision Current Income Tax Expense (Benefit) Deferred benefit (provision): Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State Deferred State and Local Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Total deferred benefit (provision) Deferred Income Tax Expense (Benefit) Total income tax benefit (provision), net Actual tax provision reconciliation to the amounts computed by applying statutory Federal tax rate to income before taxes Effective Income Tax Rate Reconciliation, Percent [Abstract] Statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent State income taxes, net of Federal effect Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Permanent differences Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Percent Rates Different than Statutory Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent Valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Enactment of Tax Cuts and Job Act of 2017 Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Total effective tax rate Effective Income Tax Rate Reconciliation, Percent Deferred tax assets: Deferred Tax Assets, Net [Abstract] Net operating losses, credit and other carryforwards Deferred Tax Assets, Operating Loss Tax Credit and Other Carryforwards Deferred tax assets operating loss tax credit and other carryforwards. Unrealized losses on investments, net Deferred Tax Assets, Other Comprehensive Loss Accrued expenses Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals Stock-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Other assets Deferred Tax Assets, Other Total deferred tax assets Deferred Tax Assets, Gross Valuation allowance Deferred Tax Assets, Valuation Allowance Deferred tax assets after valuation allowance Deferred Tax Assets, Net of Valuation Allowance Deferred tax liabilities: Deferred Tax Liabilities, Net [Abstract] Depreciation and amortization Deferred Tax Liabilities, Property, Plant and Equipment Other liabilities Deferred Tax Liabilities, Other Total deferred tax liabilities Deferred Tax Liabilities, Gross Total net deferred tax liabilities Deferred Tax Liabilities, Net Net operating loss carryforwards Operating Loss Carryforwards Tax credit carryforwards Tax Credit Carryforward, Amount Provision for U.S. income taxes or foreign withholding taxes Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries Change in enacted tax rate amount Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Change in allowance for foreign tax credit carryover as result of the Tax Cuts and Jobs Act Tax Custs And Jobs Act of 2017, Incomplete Accounting, Change In Tax Rate, Provisional Increase (Decrease) In Allowance For Foreign Tax Credit Carryover vlauations Income tax provision on deemed mandatory repatriation of foreign earnings Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount Reconciliation of the beginning and ending amount of unrecognized tax benefits Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Balance as of beginning of period Unrecognized Tax Benefits Additions based on tax positions related to the current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Additions based on tax positions related to prior years Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions Reductions based on tax positions related to prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Balance as of end of period Unrecognized tax benefits if recognized, could affect our effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Schedule of property and equipment Property, Plant and Equipment [Table Text Block] Schedule of construction in progress Schedule of Construction in Progress [Table Text Block] Schedule of construction in progress. Schedule of depreciation expense Schedule of Depreciation Expense [Table Text Block] Schedule of depreciation expense. Schedule of satellites Schedule of Satellites [Table Text Block] Schedule of satellites. Schedule of components of income (loss) before income taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of components of the benefit (provision) for income taxes Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of income tax rate reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of deferred tax assets and liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of reconciliation of unrecognized tax benefits Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Investment, Name [Axis] Investment, Name [Axis] Investment, Name [Domain] Investment, Name [Domain] Broadband Connectivity Solutions Broadband Connectivity Solutions [Member] Broadband Connectivity Solutions [Member] Hughes Systique Hughes Systique Corporation [Member] Represents the details pertaining to Hughes Systique Corporation. Deluxe Deluxe Echo Star L L C [Member] Represents the details pertaining to Deluxe /EchoStar LLC. AsiaSat AsiaSat [Member] AsiaSat [Member] Global IP Revenue Global IP Revenue [Member] Global IP Revenue [Member] TerreStar Solutions, Inc. TerreStar Solutions, Inc. [Member] Information pertaining to TerreStar Solutions, Inc. [Member] Ownership interest in related party (as a percent) Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Ownership interest percentage by related party Percentage Ownership in Variable Interest Entity by Other Related Parties Percentage ownership in variable interest entity by other related parties. Ownership percentage Equity Method Investment, Ownership Percentage Due to related parties Due to Related Parties Investment nonvoting interest ownership percentage(at least) Cost Method Investment Nonvoting Interest Ownership Percentage The percentage of non-voting ownership of common stock or equity participation in the investee accounted for under the cost method of accounting. Payments to acquire equity method investments Payments to Acquire Equity Method Investments Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer relationships Customer Relationships [Member] Technology-based Developed Technology Rights [Member] Trademark portfolio Trademarks [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Useful life Finite-Lived Intangible Asset, Useful Life Cost Finite-Lived Intangible Assets, Gross Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Hughes ESS Corporate and Other Equipment Equipment Other [Member] Equipment Other [Member] Services and other Service [Member] Design, development and construction services Services, Design, Development And Construction [Member] Services, Design, Development And Construction [Member] Revenue from sales and services Sales And Services [Member] Sales And Services [Member] Leasing income Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Intersegment revenue Intersegment Eliminations [Member] Corporate and Other Corporate and Other [Member] Segment Reporting Segment Reporting Information [Line Items] EBITDA Earnings before Interest, Tax, Depreciation and Amortization Represents the amount of earnings before interest, tax, depreciation and amortization. Capital expenditures Capital Expenditures, Net of Refunds and Other Receipts Related to Capital Expenditures The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale, net of refunds and other receipts related to capital expenditures. Interest income and expense, net Interest Income (Expense), Net Depreciation and amortization Net income attributable to noncontrolling interests Net Income (Loss) Attributable To Noncontrolling Interest EBITDA Adjustment Represents the net income attributable to HSS Condensed Income Statement [Table] Condensed Income Statement [Table] Condensed Income Statements, Captions [Line Items] Condensed Income Statements, Captions [Line Items] Costs and Expenses: Impairment of assets Other-than-temporary impairment loss on available-for-sale securities Gains (losses) on investments, net Gain (Loss) on Investments, Excluding Other than Temporary Impairments Equity in earnings (losses) of subsidiaries, net Equity in Earnings of Subsidiaries Represents equity in earnings of guarantor and non-guarantor subsidiaries, eliminated in consolidation. Income tax benefit (provision), net Comprehensive Income (loss) : Equity in other comprehensive income (loss) of subsidiaries, net Other Comprehensive Income, Income (Loss) from Investments in Subsidiaries Arising During Period, Net of Tax Represents the amount after tax, resulting from the earnings from subsidiaries accounted under equity method. Schedule of Contractual Obligations [Table] Schedule of Contractual Obligations [Table] Schedule of information pertaining to contractual obligations of the entity. Contractual Obligations, Type [Axis] Contractual Obligations, Type [Axis] Information pertaining to the future maturities of contractual obligations of the entity. Contractual Obligations Type [Domain] Contractual Obligations Type [Domain] Represents the type of contractual obligations, such as long-term borrowings, capital lease obligations, interest expense on long-term debt and capital lease obligations, satellite-related obligations, operating lease obligations, purchase and other obligations. Long-term debt Long-term Debt [Member] Capital lease obligations Capital Lease Obligations [Member] Interest on long-term debt and capital lease obligations Interest Expense [Member] Satellite-related obligations Satellite Related Obligation [Member] Represents the information relating to satellite-related obligations of the entity. Operating lease obligations Operating Lease Obligations [Member] Represents operating lease obligations of the entity. Commitments and Contingencies Contractual Obligations [Line Items] Total Contractual Obligation 2019 Contractual Obligation, Due in Next Fiscal Year 2020 Contractual Obligation, Due in Second Year 2021 Contractual Obligation, Due in Third Year 2022 Contractual Obligation, Due in Fourth Year 2023 Contractual Obligation, Due in Fifth Year Thereafter Contractual Obligation, Due after Fifth Year Satellite related expenses Satellite Related Expense Represents the amount of satellite-related expenses incurred during the period. Rent expense Operating Leases, Rent Expense Related Party Transactions Related Party Transactions Disclosure [Text Block] Long-Term Debt and Capital Lease Obligations Debt and Capital Leases Disclosures [Text Block] Investments in Unconsolidated Entities Cost and Equity Method Investments Disclosure [Text Block] Amortization expense Amortization of Intangible Assets Schedule of Noncash Investing and Financing Activities Schedule of Other Significant Noncash Transactions [Table Text Block] Schedule of Cost of Sales and Research and Development Costs Schedule of Cost of Sales and Research and Development Costs [Table Text Block] Schedule of Cost of Sales and Research and Development Costs [Table Text Block] SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] Schedule II - Valuation and Qualifying Accounts SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Goodwill and Other Intangible Assets Goodwill and Intangible Assets Disclosure [Text Block] Segment Reporting Segment Reporting Disclosure [Text Block] Raw materials Inventory, Raw Materials, Net of Reserves Work-in-process Inventory, Work in Process, Net of Reserves Finished goods Inventory, Finished Goods, Net of Reserves Total inventory Schedule of revenue, EBITDA, and capital expenditures by operating segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of reconciliation of EBITDA to reported income (loss) before income taxes Schedule of Reconciliation of EBITDA to Income (Loss) From Continuing Operations before Income Taxes [Table Text Block] Tabular disclosure of information which reconciles EBITDA to reported income or loss from continuing operations before income taxes. Summary of total long-lived assets and revenue attributed to the North American and other foreign locations Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Summary of sales to major customer and its percentage of total revenue Schedule of Revenue by Major Customers by Reporting Segments [Table Text Block] Schedule of consolidating balance sheet Condensed Balance Sheet [Table Text Block] Schedule of consolidating statement of operations and comprehensive income (loss) Condensed Income Statement [Table Text Block] Schedule of consolidating statement of cash flows Condensed Cash Flow Statement [Table Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Subsidiaries Subsidiaries [Member] Hughes Network Systems Hughes Network Systems [Member] Hughes Network Systems [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] Elbit Elbit [Member] Elbit [Member] Realtime Data LLC Realtime Data LLC [Member] Realtime Data LLC [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Damages awarded value Loss Contingency, Damages Awarded, Value Attorney's fees sought Loss Contingency, Attorney's Fees Sought, Value The value (monetary amount) of the attorney's fees the plaintiff seeks in the legal matter. Loss contingency accrual Loss Contingency Accrual Patents allegedly infringed Loss Contingency, Patents Allegedly Infringed, Number Pending claims validity challenged Loss Contingency, Pending Claims, Validity Challenged Loss Contingency, Pending Claims, Validity Challenged Operating income Change in enacted tax rate amount Intangible asset impairment Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) Progress amounts for satellite construction, including prepayments under capital leases and launch services costs Progress Amounts For Satellite Construction Including Prepayments Under Capital Leases And Launch Costs [Member] Represents information pertaining to Progress amounts for satellite construction including prepayments under capital leases and launch costs. Satellite related equipment Satellite Related Equipment [Member] Represents the information pertaining to Satellite related equipment. Other Construction In Progress Other [Member] Represents the information pertaining to other constructions in process. Construction in progress Construction in Progress, Gross Principles of Consolidation and Basis of Presentation Principles of Consolidation and Basis of Presentation [Policy Text Block] Principles of consolidation and basis of presentation policy. Use of Estimates Use of Estimates, Policy [Policy Text Block] Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Foreign Currency Foreign Currency Transactions and Translations Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Inventory Inventory, Policy [Policy Text Block] Capitalized Software Costs Capitalized Software [Policy Text Block] Disclosure of accounting policy for costs incurred when both (1) the software is acquired, internally developed, or modified solely to meet the entity's internal needs, and (2) during the software's development or modification, no substantive plan exists or is being developed to market the software externally. This policy also may address the entity's amortization policy for its capitalized computer software costs and how it evaluates such capitalized costs for impairment. Marketable Investment Securities Marketable Securities, Policy [Policy Text Block] Investments in Unconsolidated Entities - Cost and Equity Method Equity and Cost Method Investments, Policy [Policy Text Block] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Impairment of Long-lived Assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Regulatory Authorizations and Other Intangible Assets Intangible Assets Finite Lived and Indefinite Lived Policy [Text Block] Represents the disclosure of accounting policy for finite-lived and indefinite-lived intangible assets. Debt Issuance Costs Debt, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Cost of Sales - Equipment and Services Cost of Sales, Policy [Policy Text Block] Research and Development Research and Development Expense, Policy [Policy Text Block] Advertising Costs Advertising Costs, Policy [Policy Text Block] Recently Adopted and Not Yet Adopted Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Schedule of marketable investment securities Investment [Table Text Block] Schedule of unrealized gains (losses) on marketable investment securities Unrealized Gain (Loss) on Investments [Table Text Block] Schedule of fair value measurements Fair Value, Assets Measured on Recurring Basis [Table Text Block] Current assets: Assets, Current [Abstract] Marketable investment securities, at fair value Trade accounts receivable and contract assets, net (Note 3) Prepaids and deposits Prepaid Expense and Deposits Assets, Current Represents the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer. It also represents the carrying value of amounts transferred to third parties for security purposes that are expected to be returned or applied towards payment within one year or during the operating cycle, if shorter. Noncurrent assets: Assets, Noncurrent [Abstract] Property and equipment, net Total noncurrent assets Assets, Noncurrent Current liabilities: Liabilities, Current [Abstract] Accrued interest Interest Payable, Current Accrued compensation Employee-related Liabilities, Current Accrued taxes Accrued Income Taxes, Current Noncurrent liabilities: Liabilities, Noncurrent [Abstract] Advances from affiliates Total noncurrent liabilities Liabilities, Noncurrent Commitments and Contingencies Commitments and Contingencies Shareholders’ equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred stock, $0.001 par value, 1,000,000 shares authorized, none issued and outstanding at each of December 31, 2018 and 2017 Preferred Stock, Value, Issued Common stock, $0.01 par value; 1,000,000 shares authorized, 1,078 shares issued and outstanding at each of December 31, 2018 and 2017 Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Land Land [Member] Satellites - owned Satellites acquired under capital leases Assets Held under Capital Leases [Member] Construction in progress Construction in Progress [Member] Total property and equipment Property, Plant and Equipment, Gross Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property and equipment, net Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Prior to August 1, 2020 Debt Instrument, Redemption, Period One [Member] Prior to August 1, 2019 Debt Instrument, Redemption, Period Two [Member] 2026 Notes Two Thousand Twenty Six Notes [Member] Two Thousand Twenty Six Notes [Member] Debt and capital lease obligations Principal amount of debt issuance Debt Instrument, Face Amount Issue price as percent of principal amount Debt Instrument Issue Price as Percentage of Principal Amount Long term debt issue price as percentage of principal amount. Outstanding principal balance Debt redemption price as a percentage of the principal amount Debt Instrument, Redemption Price, Percentage Debt redeemed Loss on debt repurchased Gain (Loss) on Repurchase of Debt Instrument Potential annual redemption, as a percentage of amount outstanding Debt Instrument, Annual Potential Redemption As A Percent Of Amount Outstanding Debt Instrument, Annual Potential Redemption As A Percent Of Amount Outstanding Potential redemption as a percentage of principal Debt Instrument, Potential Redemption As A Percent Of Principal Debt Instrument, Potential Redemption As A Percent Of Principal Purchase price as a percentage of aggregate principal amount at which notes may be required to be repurchased in the event of change of control Debt Instrument Purchase Price, Due to Change of Control as Percentage of Aggregate Principal Amount Represents the purchase price as a percentage of the aggregate principal amount at which the debt instrument may be required to be repurchased in the event of a change of control. Percent of debt holders required to call debt Debt Instrument, Percent Of Debt Holders Required To Call Debt Debt Instrument, Percent Of Debt Holders Required To Call Debt Unregistered note percentage exchange Debt Instrument, Unregistered Note, Percentage Exchanged For Registered Note Debt Instrument, Unregistered Note, Percentage Exchanged For Registered Note Payments of debt issuance costs Amortization of debt issuance costs Amortization of Debt Issuance Costs Interest rate Debt Instrument, Interest Rate During Period Sublease rental income Operating Leases, Income Statement, Sublease Revenue Future minimum sublease rental income Capital Leases, Future Minimum Sublease Rentals Weighted average lease term Lessee, Operating Lease, Term of Contract Accounting Policies [Table] Accounting Policies [Table] Summarization of the disclosures for all significant accounting policies of the reporting entity. Retained Earnings Computer Software, Intangible Asset Computer Software, Intangible Asset [Member] Software Development Software Development [Member] Accounting Policies [Line Items] Accounting Policies [Line Items] Amount of transfers between levels within the fair value hierarchy Fair Value Measurement Asset and Liability Transfers Between Levels Represents the amount of transfers between the levels of fair value hierarchy that have taken place during the period. Useful life Useful life Expected increase in operating lease assets and lIabilities as percent of total assets Operating Lease, Expected Increase In Operating Lease Assets And LIabilities As Percent Of Total Assets, Percent Operating Lease, Expected Increase In Operating Lease Assets And LIabilities As Percent Of Total Assets, Percent Adjustments to reconcile net income to net cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Losses (gains) and impairment on marketable investment securities, net Marketable Securities, Gain (Loss) Equity in earnings of unconsolidated affiliate Income (Loss) from Equity Method Investments, Including Discontinued Operations For the entity and the disposal group, this item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee. Stock-based compensation Share-based Compensation Deferred tax (benefit) provision Proceeds from sale of trading securities Proceeds from (Payments for) Trading Securities, Short-term Changes in current assets and current liabilities, net: Increase (Decrease) in Operating Capital [Abstract] Trade accounts receivable, net Increase (Decrease) in Accounts and Other Receivables Advances to and from affiliates, net Increase (Decrease) Due from Affiliates Trade accounts receivable - DISH Network Increase (Decrease) in Accounts Receivable, Related Parties Inventory Increase (Decrease) in Inventories Other current assets Increase (Decrease) in Other Current Assets Trade accounts payable Increase (Decrease) in Accounts Payable, Trade Accrued expenses and other Increase (Decrease) in Accrued Liabilities Changes in noncurrent assets and noncurrent liabilities, net Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net Other, net Other Operating Activities, Cash Flow Statement Repurchase of the 2019 Senior Secured Notes Cash and cash equivalents, including restricted amounts, beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash and cash equivalents, including restricted amounts, end of period Supplemental disclosure of cash flow Information: Supplemental Cash Flow Information [Abstract] Cash paid for interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Cash paid for income taxes Income Taxes Paid Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Level 1 Fair Value, Inputs, Level 1 [Member] Fair value of marketable securities Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Allowance for doubtful accounts SEC Schedule, 12-09, Allowance, Credit Loss [Member] Valuation and qualifying accounts SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] Changes in valuation and qualifying accounts SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Balance at Beginning of Year SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Charged to Costs and Expenses SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Deductions SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Balance at End of Year