Restructuring - Summary of Restructuring Liability (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended		24 Months Ended
	Jun. 30, 2017	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Restructuring Reserve [Roll Forward]
Balance - Beginning of the period		$ 2,274	$ 585
Provisions	$ 900	1,635	768	$ 4,300
Utilizations		(1,829)	(538)
Balance - End of the period	2,080	2,080	815	2,274
Employee Costs
Restructuring Reserve [Roll Forward]
Balance - Beginning of the period		2,229	542
Provisions		49	464
Utilizations		(904)	(339)
Balance - End of the period	1,374	1,374	667	2,229
Facility Exit and Other Costs
Restructuring Reserve [Roll Forward]
Balance - Beginning of the period		45	43
Provisions		1,586	304
Utilizations		(925)	(199)
Balance - End of the period	$ 706	$ 706	$ 148	$ 45