Details of Selected Balance Sheet Accounts - Other Long-term Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Deferred rents	$ 13,410	$ 13,955
Facility restructuring accrual	0	1,765
Deferred income tax liability	2,740	3,679
Other long-term liabilities	2,427	1,128
Total	$ 18,577	$ 20,527