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Restructuring and Related Activities (Details)		3 Months Ended		9 Months Ended		10 Months Ended	15 Months Ended
Restructuring and Related Activities (Details)	Dec. 14, 2015 USD ($) employee	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated \| employee	100
Restructuring Reserve		$ 938,000		$ 938,000		$ 938,000		$ 359,000
Restructuring Charges		466,000	$ 0	4,433,000	$ 0	5,487,000
Payments for Restructuring				(3,854,000)
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		74,000		74,000		74,000		75,000
Restructuring Charges				862,000
Payments for Restructuring				(863,000)
Restructuring and Related Cost, Expected Cost	$ 1,000,000
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		$ 864,000		864,000		$ 864,000		$ 284,000
Restructuring Charges				3,571,000
Payments for Restructuring				(2,991,000)
International [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges							$ 4,200,000
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				1,000,000
North America [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges				$ 300,000
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	6,700,000
Maximum [Member] \| Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	1,200,000
Maximum [Member] \| Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	5,700,000
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	6,400,000
Minimum [Member] \| Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 5,400,000