Other Comprehensive Income (Loss) (Components of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Equity [Abstract]
Cumulative translation adjustment, Pre-tax	$ (21,661)	$ (55,688)	$ (54,555)	$ (41,530)
Cumulative translation adjustment, Tax	0	0	0	0
Cumulative translation adjustment, Net of Tax	(21,661)	(55,688)	(54,555)	(41,530)
Pension and Other Postretirement Adjustments
Pension and other postretirement adjustments, Pre-tax	1,215	1,927	3,605	3,404
Pension and other postretirement adjustments, Tax	(397)	(313)	(1,187)	(834)
Pension and other postretirement adjustments, Net of Tax	818	1,614	2,418	2,570
Reclassification adjustments for derivatives, Pre-tax	1,748	1,795	5,287	5,432
Reclassification adjustments for derivatives, Tax	(634)	(654)	(1,917)	(1,979)
Reclassification adjustments for derivatives, Net of tax	1,114	1,141	3,370	3,453
Total other comprehensive income (loss), Pre-tax	(18,698)	(51,966)	(45,663)	(32,694)
Total other comprehensive income (loss), Tax	(1,031)	(967)	(3,104)	(2,813)
Other comprehensive income (loss)	$ (19,729)	$ (52,933)	$ (48,767)	$ (35,507)