Stockholders' (Deficit) Equity Stockholders' (Deficit) Equity (Details) - Changes in AOCI by Component - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (21,170)	$ 8,345
Change in AOCL/I before reclassifications to income	(28,459)	(32,028)
Reclassifications from AOCI to income during the period	5,227	2,513
Other comprehensive (loss) income, net of tax	(23,232)	(29,515)	$ 2,377
Ending balance	(44,402)	(21,170)	8,345
Interest Rate Swap
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(1,740)	(3,903)
Change in AOCL/I before reclassifications to income	(6,356)	(292)
Reclassifications from AOCI to income during the period	5,017	2,455
Other comprehensive (loss) income, net of tax	(1,339)	2,163
Ending balance	(3,079)	(1,740)	(3,903)
Defined Benefit Pension Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(6,028)	(1,811)
Change in AOCL/I before reclassifications to income	986	(4,275)
Reclassifications from AOCI to income during the period	210	58
Other comprehensive (loss) income, net of tax	1,196	(4,217)
Ending balance	(4,832)	(6,028)	(1,811)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(13,402)	14,059
Change in AOCL/I before reclassifications to income	(23,089)	(27,461)
Reclassifications from AOCI to income during the period	0	0
Other comprehensive (loss) income, net of tax	(23,089)	(27,461)
Ending balance	$ (36,491)	$ (13,402)	$ 14,059