Restructuring and Reorganization Charges - Schedule of Activity in Business Restructuring and Reorganization Reserves (Details) - USD ($) $ in Thousands	3 Months Ended							12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Activity in the business restructuring reserves related to continuing operations
Beginning Balance				$ 3,746			$ 2,994	$ 3,746	$ 2,994	$ 3,948
Charged to expense during period	$ 4,200	$ 1,600	$ 2,700	200	$ 1,000	$ 5,300	(5,700)	8,796	416	3,074
Cash payments								(5,674)	(7,254)	(6,129)
Adjustment for the gain on the disposition of business operations									6,611	3,733
Adjustment for asset impairment								(3,135)		(1,685)
Other								415	979	53
Ending Balance	4,148				3,746			4,148	3,746	2,994
Termination Benefits
Activity in the business restructuring reserves related to continuing operations
Beginning Balance				2,414			1,637	2,414	1,637	2,819
Charged to expense during period								3,693	7,201	4,544
Cash payments								(4,345)	(6,781)	(5,694)
Other								(646)	357	(32)
Ending Balance	1,116				2,414			1,116	2,414	1,637
Facilities Abandonment
Activity in the business restructuring reserves related to continuing operations
Beginning Balance				$ 1,332			$ 1,357	1,332	1,357	1,113
Charged to expense during period								2,236	556	1,175
Cash payments								(1,329)	(473)	(405)
Adjustment for asset impairment								(231)
Other								1,024	(108)	(526)
Ending Balance	$ 3,032				$ 1,332			3,032	1,332	1,357
Disposition of Business Operations
Activity in the business restructuring reserves related to continuing operations
Charged to expense during period								2,904	(6,611)	(3,733)
Adjustment for the gain on the disposition of business operations									6,611	3,733
Adjustment for asset impairment								(2,904)
Other
Activity in the business restructuring reserves related to continuing operations
Beginning Balance										16
Charged to expense during period								(37)	(730)	1,088
Cash payments										(30)
Adjustment for asset impairment										(1,685)
Other								$ 37	$ 730	$ 611