Details of Selected Balance Sheet Accounts - Other Long-term Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred rents	$ 13,684	$ 13,955
Facility restructuring accrual	1,434	1,765
Deferred income tax liability	1,774	3,679
Other long-term liabilities	1,134	1,128
Total	$ 18,026	$ 20,527