Other Comprehensive Income (Loss) (Components of Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Equity [Abstract]
Cumulative translation adjustment, Pre-tax	$ (63,441)	$ (77,024)	$ 13,572
Cumulative translation adjustment, Tax	0	0	0
Cumulative translation adjustment, Net of Tax	(63,441)	(77,024)	13,572
Reclassification of foreign currency translation to earnings upon sale of business, Pre-tax	(4,725)	0
Reclassification of foreign currency translation to earnings upon sale of business, Tax	0	0
Reclassification of foreign currency translation to earnings upon sale of business	(4,725)	0	0
Pension and other postretirement adjustments
Net gain (loss) arising during the year, Pre-tax	8,318	(26,424)	26,274
Net gain (loss) arising during the year, Tax	(2,411)	7,767	(9,859)
Net gain (loss) arising during the year, Net of Tax	5,907	(18,657)	16,415
Amortization/settlement recognition of net loss (gain), Pre-tax	4,939	3,113	8,599
Amortization/settlement recognition of net loss (gain), Tax	(1,431)	(915)	(3,226)
Amortization/settlement recognition of net loss (gain), Net of Tax	3,508	2,198	5,373
Pension and other postretirement adjustments, Pre-tax	13,257	(23,311)	34,873
Pension and other postretirement adjustments, Tax	(3,842)	6,852	(13,085)
Pension and other postretirement adjustments, Net of Tax	9,415	(16,459)	21,788
Reclassification adjustments for derivatives, Pre-tax	7,030	7,223	7,430
Reclassification adjustments for derivatives, Tax	(2,499)	(2,713)	(2,692)
Reclassification adjustments for derivatives, Net of tax	4,531	4,510	4,738
Total other comprehensive income (loss), Pre-tax	(47,879)	(93,112)	55,875
Total other comprehensive income (loss), Tax	(6,341)	4,139	(15,777)
Other comprehensive income (loss)	$ (54,220)	$ (88,973)	$ 40,098