Other Comprehensive Income (Loss) (Components of Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Equity [Abstract]
Cumulative translation adjustment, Pre-tax	$ 13,874	$ 4,144	$ 14,158	$ (23,109)
Cumulative translation adjustment, Tax	0	0	0	0
Cumulative translation adjustment, Net of Tax	13,874	4,144	14,158	(23,109)
Pension and Other Postretirement Adjustments
Pension and other postretirement adjustments, Pre-tax	798	1,521	1,477	3,456
Pension and other postretirement adjustments, Tax	(281)	(583)	(521)	(1,245)
Pension and other postretirement adjustments, Net of Tax	517	938	956	2,211
Reclassification adjustments for derivatives, Pre-tax	1,817	1,867	3,637	3,740
Reclassification adjustments for derivatives, Tax	(662)	(680)	(1,325)	(1,363)
Reclassification adjustments for derivatives, Net of tax	1,155	1,187	2,312	2,377
Total other comprehensive income (loss), Pre-tax	16,489	7,532	19,272	(15,913)
Total other comprehensive income (loss), Tax	(943)	(1,263)	(1,846)	(2,608)
Other comprehensive income (loss)	$ 15,546	$ 6,269	$ 17,426	$ (18,521)