Restructuring - Summary of Restructuring Liability (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Restructuring Reserve [Roll Forward]
Balance - Beginning of the year		$ 585	$ 603
Provisions	$ 800	3,507	2,332
Utilizations		(1,818)	(2,350)
Balance - End of year	585	2,274	585
Separation costs
Restructuring Reserve [Roll Forward]
Balance - Beginning of the year		542	531
Provisions		2,668	790
Utilizations		(981)	(779)
Balance - End of year	542	2,229	542
Facility Exit and Other Contractual Costs
Restructuring Reserve [Roll Forward]
Balance - Beginning of the year		43	72
Provisions		839	1,542
Utilizations		(837)	(1,571)
Balance - End of year	$ 43	$ 45	$ 43