Restructuring Charges - Additional Information (Details) $ in Thousands	3 Months Ended				6 Months Ended		12 Months Ended
	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($) employee	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ (967)		$ (1,338)	$ (1,300)	$ (13,706)	$ (1,808)
Adjustments to estimates on restructuring reserves					(300)	(1,100)	$ (1,600)
International
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges	$ (1,300)					(2,200)
Adjustments to estimates on restructuring reserves					(300)		(600)
Americas
Restructuring Cost and Reserve [Line Items]
Restructuring and other charges					(12,400)	$ (700)
Adjustments to estimates on restructuring reserves					$ 0		$ (500)
Voluntary Retirement Incentive Package
Restructuring Cost and Reserve [Line Items]
Number of employees that made the revocable election to retire | employee		83
Voluntary Retirement Incentive Package | Special Termination Benefits
Restructuring Cost and Reserve [Line Items]
Severance costs		$ 11,400