Document and Entity Information Document Type Document Type Document Annual Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town Entity Address, State or Province Entity Address, State or Province Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Entity Shell Company Entity Shell Company Entity Public Float Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Auditor Firm ID Auditor Name Auditor Location Entity Central Index Key Entity Central Index Key Amendment Flag Amendment Flag Document Fiscal Period Focus Document Fiscal Period Focus Document Fiscal Year Focus Document Fiscal Year Focus Current Fiscal Year End Date Current Fiscal Year End Date CONSOLIDATED BALANCE SHEETS Assets [Abstract] Assets Assets, Current [Abstract] Current Assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents The amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business and right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current. Accounts Receivable And Contract With Customer Assets, Net, Current Trade accounts receivable and contract assets, net of allowance for credit losses of $17,559 and $11,314, respectively Prepaid Expense and Other Assets, Current Prepaids and other assets Inventory, Net Inventory Total inventory Other Assets, Current Other current assets Assets, Current Total current assets Assets, Noncurrent [Abstract] Noncurrent Assets: Property, Plant, and Equipment and Finance Lease Right-of-Use Asset, after Accumulated Depreciation and Amortization Property and equipment, net Property and equipment, net Operating Lease, Right-of-Use Asset Operating lease assets Operating Intangible Assets Excluding Other Intangible Assets Intangible Assets Excluding Other Intangible Assets Regulatory authorizations, net Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Total other investments Other investments Deferred Income Tax Assets, Net Deferred tax assets Other Assets, Noncurrent Other noncurrent assets, net Assets, Noncurrent Total noncurrent assets Assets Total assets Liabilities and Equity [Abstract] Liabilities and Stockholder's Equity (Deficit) Liabilities, Current [Abstract] Current Liabilities: Current: Accounts Payable, Trade, Current Amounts payable to Hughes Systique Trade accounts payable Related party payables - EchoStar - current, net Contract with Customer, Liability, Current Contract liabilities Current Interest Payable, Current Accrued interest Employee-related Liabilities, Current Accrued compensation Accrued Expenses, Current Accrued Expenses, Current Accrued expenses Operating Lease, Liability, Current Operating - Current Operating lease liabilities - EchoStar - current Operating lease liabilities Operating - Current Accounts Payable and Other Accrued Liabilities, Current Other current liabilities Long-Term Debt, Current Maturities Less: current portion Current portion of debt and other notes payable (Note 9) Liabilities, Current Total current liabilities Liabilities, Noncurrent [Abstract] Long-Term Obligations, Net of Current Portion: Noncurrent: Long-Term Debt, Excluding Current Maturities Long-term debt and other notes payable, net of current portion (Note 9) Total debt and other notes payable, net of current portion Deferred Income Tax Liabilities, Net Deferred tax liabilities, net Operating Lease, Liability, Noncurrent Operating lease liabilities - EchoStar - noncurrent Operating lease liabilities, noncurrent Operating - Noncurrent Other Liabilities and Deferred Revenue, Noncurrent Other noncurrent liabilities Liabilities, Noncurrent Total long-term obligations, net of current portion Liabilities Total liabilities Commitments and Contingencies. Commitments and Contingencies (Note 9) Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Stockholder's Equity (Deficit): Common Stock, Value, Issued Common stock, $0.01 par value, 1,000,000 shares authorized, 1,078 shares issued and outstanding at both December 31, 2025 and 2024 Additional Paid in Capital Additional paid-in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive income (loss) Retained Earnings (Accumulated Deficit) Accumulated earnings (deficit) Equity, Attributable to Parent Ending balance Beginning balance Total HSSC stockholder's equity (deficit) Equity, Attributable to Noncontrolling Interest Noncontrolling interests Equity, Including Portion Attributable to Noncontrolling Interest Ending balance Beginning balance Total stockholder's equity (deficit) Liabilities and Equity Total liabilities and stockholder's equity (deficit) Amount of allowance for credit loss on accounts receivable and for right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current. Accounts Receivable And Contract With Customer Assets, Allowance For Credit Loss, Current Balance, end of period Balance, beginning of period Trade accounts receivable and contract assets, allowance for credit losses Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized (in shares) Common Stock, Shares, Issued Common stock, shares issued (in shares) Common Stock, Shares, Outstanding Common stock, shares outstanding (in shares) CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) Statement [Table] Statement [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Service [Member] Service revenue Service Product [Member] Equipment sales and other revenue Equipment and other Statement [Line Items] Statement Revenues [Abstract] Revenue: Revenue from Contract with Customer, Excluding Assessed Tax Total revenue Costs and Expenses [Abstract] Costs and Expenses (exclusive of depreciation and amortization): Operating Expenses Cost of Goods and Services Sold Total cost of services Cost of sales Selling, General and Administrative Expense Total selling, general and administrative expenses Selling, general and administrative expenses Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Total depreciation and amortization Depreciation and amortization Asset Impairment Charges Impairments and other (Note 1) Impairments and other Costs and Expenses Total costs and expenses Total costs and expenses Operating Income (Loss) Operating income (loss) Operating income (loss) Nonoperating Income (Expense) [Abstract] Other Income (Expense): Unallocated Amounts Investment Income, Net Interest income Interest income Interest Expense Interest expense, net of amounts capitalized (Note 2) Other Nonoperating Income (Expense) Other, net (Note 5) Total Other, net 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. Total Nonoperating Income (Expense), Interest And Debt Expense, and Income (Loss) From Equity Method Investments Total other income (expense) Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income (loss) before income taxes Income (loss) before income taxes Income Tax Expense (Benefit) Income tax benefit (provision), net Income tax benefit (provision), net Total income tax benefit (provision), net Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income (loss) Net income (loss) Net income (loss) Net Income (Loss) Attributable to Noncontrolling Interest Less: Net income (loss) attributable to noncontrolling interests Net Income (Loss) Available to Common Stockholders, Basic Net income (loss) attributable to HSSC CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) Comprehensive Income (Loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive income (loss): Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax Foreign currency translation adjustments OCI, Debt Securities, Available-for-Sale, Gain (Loss), before Adjustment, after Tax Unrealized gains (losses) on available-for-sale debt securities Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Recognition of previously unrealized (gains) losses on available-for-sale debt securities included in net income (loss) Other Comprehensive Income, Other, Net of Tax Other Other Comprehensive Income (Loss), Net of Tax Other comprehensive income (loss) Total other comprehensive income (loss), net of tax Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income (loss): Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Less: Comprehensive income (loss) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income (loss) attributable to HSSC CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDER'S EQUITY (DEFICIT) Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Additional Paid-in Capital [Member] Additional Paid-In Capital AOCI Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss) Total Retained Earnings [Member] Accumulated Earnings (Deficit) Noncontrolling Interest [Member] Noncontrolling Interests Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Non-cash, stock-based compensation Parents Capital Account, Return of Capital Parents Capital Account, Return of Capital Dividends to EchoStar Corporation Noncontrolling Interest, Decrease from Deconsolidation Deconsolidation of Hughes Systique Corporation Stockholders' Equity, Other Other, net CONSOLIDATED STATEMENTS OF CASH FLOWS Net Cash Provided by (Used in) Operating Activities [Abstract] Cash Flows From Operating Activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash flows from operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Gain (Loss) on Investments Realized and unrealized losses (gains) and impairments on investments and other Share-Based Payment Arrangement, Noncash Expense Non-cash, stock-based compensation Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations and discontinued operations. Deferred Income Tax Expense (Benefit), Including Discontinued Operations Deferred tax expense (benefit) Income (Loss) from Equity Method Investments Equity in (earnings) losses of affiliates Equity in earnings (losses) of affiliates Increase Decrease Changes In Allowance For Credit Losses Increase Decrease Changes In Allowance For Credit Losses Changes in allowance for credit losses Gain (Loss), Foreign Currency Transaction, before Tax Foreign currency transaction losses (gains), net Foreign currency transaction gains (losses) Amortization of Debt Issuance Costs Amortization of debt issuance costs Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net Noncurrent assets and noncurrent liabilities, net Other Operating Activities, Cash Flow Statement Other, net Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and operating liabilities, net: Increase (Decrease) in Accounts and Other Receivables Trade accounts receivable and contract assets, net Increase (Decrease) in Other Current Assets Other current assets Increase (Decrease) in Accounts Payable, Trade Trade accounts payable Increase (Decrease) In Contract Liabilities Increase (Decrease) In Contract Liabilities Contract liabilities Increase (Decrease) in Accrued Liabilities Accrued expenses and other liabilities Net Cash Provided by (Used in) Operating Activities Net cash flows from operating activities Net Cash Provided by (Used in) Investing Activities [Abstract] Cash Flows From Investing Activities: Payments to Acquire Marketable Securities Purchases of marketable investment securities Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale Sales and maturities of marketable investment securities Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment (Note 7) Payments to Develop Software Expenditures for externally marketed software Cash Divested from Deconsolidation Deconsolidation of Hughes Systique Corporation (Note 15) Amount of distribution received from equity method investee for return of investment, classified as investing activities. Proceeds From Equity Method Investment Distributions Return Of Capital Return of equity investment Proceeds from Equity Method Investment, Distribution, Return of Capital Dividend received from unconsolidated affiliate Payments for (Proceeds from) Other Investing Activities Other, net Net Cash Provided by (Used in) Investing Activities Net cash flows from investing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Cash Flows From Financing Activities: Repayments of Other Debt Payment of in-orbit incentive obligations Parents Capital Account, Return of Capital, Financing Activities Parents Capital Account, Return of Capital, Financing Activities Dividends to EchoStar Corporation Proceeds from (Payments for) Other Financing Activities Other, net Net Cash Provided by (Used in) Financing Activities Net cash flows from financing activities Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations Effect of exchange rates on cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Net increase (decrease) in cash, cash equivalents, restricted cash and cash equivalents Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents Cash and cash equivalents, including restricted amounts, end of period (Note 5) Cash and cash equivalents, including restricted amounts, beginning of period (Note 5) Organization and Business Activities Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Organization and Business Activities Summary of Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Supplemental Data - Statements of Cash Flows Cash Flow, Supplemental Disclosures [Text Block] Supplemental Data - Statements of Cash Flows Other Comprehensive Income (Loss) Comprehensive Income (Loss) Note [Text Block] Other Comprehensive Income (Loss) No definition available. Marketable Investment Securities, Restricted Cash and Cash Equivalents, and Other Investments Investments in Debt and Equity Instruments, Cash and Cash Equivalents, Unrealized and Realized Gains (Losses) [Text Block] Marketable Investment Securities, Restricted Cash and Cash Equivalents, and Other Investments Inventory Inventory Disclosure [Text Block] Inventory Property and Equipment and Intangible Assets Property, Plant and Equipment Disclosure [Text Block] Property and Equipment and Intangible Assets Leases The entire disclosure of information about leases. Lease Disclosure [Text Block] Leases Long-Term Debt and Other Notes Payable Long-Term Debt [Text Block] Long-Term Debt and Other Notes Payable Income Taxes and Accounting for Uncertainty in Income Taxes Income Tax Disclosure [Text Block] Income Taxes and Accounting for Uncertainty in Income Taxes Employee Benefit Plans Retirement Benefits [Text Block] Employee Benefit Plans Commitments and Contingencies