Restructuring and Reorganization Charges (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Activity in the business restructuring reserves related to continuing operations
Beginning Balance				$ 3,948			$ 3,717	$ 3,948	$ 3,717	$ 2,370
Restructuring and reorganization charges recorded during the year	$ 1,300	$ 800	$ 400	600	$ 4,900	$ 7,800	1,200	3,074	13,969	12,405
Cash payments								(6,129)	(14,421)	(4,331)
Adjustment for the gain (loss) on the disposition of business operations								3,733	222	(3,017)
Adjustment for the loss on termination of pension plan										(3,221)
Adjustment for asset impairment								(1,685)
Other								53	461	(489)
Ending Balance	2,994				3,948			2,994	3,948	3,717
Termination Benefits
Activity in the business restructuring reserves related to continuing operations
Beginning Balance				2,819			3,717	2,819	3,717	1,917
Restructuring and reorganization charges recorded during the year								4,544	5,589	5,577
Cash payments								(5,694)	(6,421)	(3,741)
Adjustment for the gain (loss) on the disposition of business operations								0	0	0
Adjustment for the loss on termination of pension plan										0
Adjustment for asset impairment								0
Other								(32)	(66)	(36)
Ending Balance	1,637				2,819			1,637	2,819	3,717
Facilities Abandonment
Activity in the business restructuring reserves related to continuing operations
Beginning Balance				1,113			0	1,113	0	(453)
Restructuring and reorganization charges recorded during the year								1,175	1,146	0
Cash payments								(405)	0	0
Adjustment for the gain (loss) on the disposition of business operations								0	0	0
Adjustment for the loss on termination of pension plan										0
Adjustment for asset impairment								0
Other								(526)	(33)	(453)
Ending Balance	1,357				1,113			1,357	1,113	0
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								(3,733)	(222)	3,588
Cash payments								0	0	(571)
Adjustment for the gain (loss) on the disposition of business operations								3,733	222	(3,017)
Adjustment for the loss on termination of pension plan										0
Adjustment for asset impairment								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				$ 16			$ 0	16	0	0
Restructuring and reorganization charges recorded during the year								1,088	7,456	3,240
Cash payments								(30)	(8,000)	(19)
Adjustment for the gain (loss) on the disposition of business operations								0	0	0
Adjustment for the loss on termination of pension plan										(3,221)
Adjustment for asset impairment								(1,685)
Other								611	560	0
Ending Balance	$ 0				$ 16			$ 0	$ 16	$ 0