Components of Accumulated Other Comprehensive Loss Reclassifications (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2016		Mar. 31, 2015
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses		$ 50,784		$ 63,902
Income (loss) from continuing operations before income taxes and equity income		(14,614)		25,008
Income tax benefit (expense)		2,166		(12,855)
Net income (loss)		(9,592)		15,829
Amount Reclassified from Accumulated Other Comprehensive Loss
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Income tax benefit (expense)		1,776
Amount Reclassified from Accumulated Other Comprehensive Loss | Cumulative Unrecognized Actuarial Losses on Pension Obligations
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) from continuing operations before income taxes and equity income		4,650		5,534
Income tax benefit (expense)		(517)		470
Net income (loss)		4,133		5,064
Amount Reclassified from Accumulated Other Comprehensive Loss | Actuarial losses
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses		2,376	[1]	3,947
Cost of services and products sold		2,214	[1]	1,518
Amount Reclassified from Accumulated Other Comprehensive Loss | Prior service costs
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Selling, general and administrative expenses		(1)	[1]	31
Cost of services and products sold		61	[1]	38
Amount Reclassified from Accumulated Other Comprehensive Loss | Effective Portion of Deriviatives Designated as Hedging Instruments
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Net income (loss)	[1]	257		1
Foreign currency forward exchange contracts | Amount Reclassified from Accumulated Other Comprehensive Loss | Effective Portion of Deriviatives Designated as Hedging Instruments
Reclassification out of Accumulated Other Comprehensive Income [Line Items]
Cost of services and products sold		408	[1]	1
Income tax benefit (expense)		$ (151)	[1]	$ 0

[1] These accumulated other comprehensive loss components are included in the computation of net periodic pension costs. See Note 7, Employee Benefit Plans, for additional details.