Restructuring - Schedule of Restructuring Accruals Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Reserve [Roll Forward]
Beginning balance	$ 6,636	$ 6,056
Restructuring expenses	3,674	11,239	$ 13,672
Payments, utilization and other	(6,417)	(10,659)
Ending balance	$ 3,893	$ 6,636	$ 6,056