Fair Value Measurements - Summary of Financial Liability Measured at Fair Value on a Recurring Basis (Details) - Designated As Hedging - Cash Flow Hedge - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	$ (674)	$ (768)	$ (1,020)
Realized gain (loss) on cash flow hedge	233	768
Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative Asset	379	0
Realized gain (loss) on cash flow hedge	(2)
Recurring | Interest rate swap
Recurring financial liability that was measured at carrying value
Realized gain (loss) on cash flow hedge	233	(768)
Recurring | Foreign currency hedges
Recurring financial liability that was measured at carrying value
Realized gain (loss) on cash flow hedge	(2)
Recurring | Significant Other Observable Inputs (Level 2) | Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	(674)	(768)
Recurring | Significant Other Observable Inputs (Level 2) | Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative Asset	379
Recurring | Carrying Value | Interest rate swap
Recurring financial liability that was measured at carrying value
Derivative liability	(674)	$ (768)
Recurring | Carrying Value | Foreign currency hedges
Recurring financial liability that was measured at carrying value
Derivative Asset	$ 379