Restructuring Charges - By Segment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Restructuring Charges
Restructuring charge	$ 1,002	$ 21,244	$ 1,738	$ 22,650
2014 Plan
Restructuring Charges
Restructuring charge	469		1,126
Plan to Date	25,593		25,593
Total Anticipated Charges	26,939		26,939
2014 Plan | Other
Restructuring Charges
Restructuring charge	0		25
Plan to Date	339		339
Total Anticipated Charges	339		339
2014 Plan | Corporate expenses
Restructuring Charges
Restructuring charge	627		833
Plan to Date	6,144		6,144
Total Anticipated Charges	7,189		7,189
2014 Plan | North America
Restructuring Charges
Restructuring charge	0		0
Plan to Date	1,011		1,011
Total Anticipated Charges	1,011		1,011
2014 Plan | International
Restructuring Charges
Restructuring charge	(158)		268
Plan to Date	18,099		18,099
Total Anticipated Charges	18,400		18,400
2012 Plan
Restructuring Charges
Restructuring charge	13		81
Plan to Date	14,030		14,030
2012 Plan | Corporate expenses
Restructuring Charges
Restructuring charge	20		93
Plan to Date	3,489		3,489
2012 Plan | North America
Restructuring Charges
Restructuring charge	(7)		(12)
Plan to Date	1,690		1,690
2012 Plan | International
Restructuring Charges
Restructuring charge	0		0
Plan to Date	$ 8,851		$ 8,851