Other Comprehensive Income (Loss) (Components of Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Equity [Abstract]
Cumulative translation adjustment, Pre-tax	$ 284	$ (27,253)
Cumulative translation adjustment, Tax	0	0
Cumulative translation adjustment, Net of Tax	284	(27,253)
Pension and Other Postretirement Adjustments
Pension and other postretirement adjustments, Pre-tax	679	1,935
Pension and other postretirement adjustments, Tax	(240)	(662)
Pension and other postretirement adjustments, Net of Tax	439	1,273
Reclassification adjustments for derivatives, Pre-tax	1,820	1,872
Reclassification adjustments for derivatives, Tax	(663)	(682)
Reclassification adjustments for derivatives, Net of tax	1,157	1,190
Total other comprehensive income (loss), Pre-tax	2,783	(23,446)
Total other comprehensive income (loss), Tax	(903)	(1,344)
Other comprehensive income (loss)	$ 1,880	$ (24,790)