Restructuring and Reorganization Charges (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended					12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Activity in the business restructuring reserves related to continuing operations
Beginning Balance			$ 3,717		$ 2,370	$ 3,717	$ 2,370	$ 4,260
Restructuring and reorganization charges recorded during the year	4,900	7,800	1,200	11,500	900	13,969	12,405	2,469
Cash payments						(14,421)	(4,331)	(3,708)
Adjustment for the loss on the disposition of business operations						222	(3,017)
Adjustment for the loss on termination of pension plan							(3,221)
Other						461	(489)	(651)
Ending Balance	3,948			3,717		3,948	3,717	2,370
Termination Benefits
Activity in the business restructuring reserves related to continuing operations
Beginning Balance			3,717		1,917	3,717	1,917	3,771
Restructuring and reorganization charges recorded during the year						5,589	5,577	1,835
Cash payments						(6,421)	(3,741)	(3,704)
Adjustment for the loss on the disposition of business operations						0	0
Adjustment for the loss on termination of pension plan							0
Other						(66)	15	15
Ending Balance	2,819			3,717		2,819	3,717	1,917
Facilities Abandonment
Activity in the business restructuring reserves related to continuing operations
Beginning Balance			0		(453)	0	(453)	489
Restructuring and reorganization charges recorded during the year						1,146	0	630
Cash payments						0	0	0
Adjustment for the loss on the disposition of business operations						0	0
Adjustment for the loss on termination of pension plan							0
Other						(33)	(453)	(666)
Ending Balance	1,113			0		1,113	0	(453)
Disposition of Business Operations
Activity in the business restructuring reserves related to continuing operations
Beginning Balance			0		0	0	0	0
Restructuring and reorganization charges recorded during the year						(222)	3,588	0
Cash payments						0	(571)	0
Adjustment for the loss on the disposition of business operations						222	(3,017)
Adjustment for the loss on termination of pension plan							0
Other						0	0	0
Ending Balance	0			0		0	0	0
Other
Activity in the business restructuring reserves related to continuing operations
Beginning Balance			0		0	0	0	0
Restructuring and reorganization charges recorded during the year						7,456	3,240	4
Cash payments						(8,000)	(19)	(4)
Adjustment for the loss on the disposition of business operations						0	0
Adjustment for the loss on termination of pension plan							(3,221)
Other						560	0	0
Ending Balance	$ 16			$ 0		$ 16	$ 0	$ 0