Document and Entity Information [Abstract] Document Type Entity Registrant Name Entity Central Index Key Amendment Flag This information pertaining to PEO Mr Akhavan. Mr Akhavan [Member] Mr. Akhavan This information pertaining to PEO Mr Dugan. Mr Dugan [Member] Mr. Dugan This member pertaining stock awards adjustments. Stock Awards Adjustments [Member] Stock Awards Adjustments This member pertaining option awards adjustments. Option Awards Adjustments [Member] Option Awards Adjustments This member pertaining change in fair value of awards granted prior to covered year that were forfeited during covered year. Change In Fair Value Of Awards Granted Prior To Covered Year That Were Forfeited During Covered Year [Member] Deduction of fair value of awards granted prior to covered year that were forfeited during covered year It represents the amount of peer group, third and fourth year prior to current fiscal year, total shareholder return. Peer Group, Third And Fourth Year Prior To Current Fiscal Year, Total Shareholder Return It represents the amount of prior peer group, total shareholder return. Prior Peer Group, Total Shareholder Return