Fair Value of Financial Instruments - Fair Value Relating to Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amount outstanding under letters of credit	$ 951	$ 1,030
Carrying Value | Japan ABL Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Credit facilities	5,331	14,969
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amount outstanding under letters of credit	951	1,030
Fair Value | Japan ABL Facility
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Credit facilities	$ 5,331	$ 14,969