Pensions and Other Postretirement Benefit Plans (Schedule of Other Changes Recognized in Other Comprehensive Income) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Settlements/curtailments	$ (46)	$ (118,350)	$ (327)
Asset/liability loss (gain)	(20,500)	48,233	28,375
Amortization of actuarial (loss)	(6,512)	(7,438)	(8,694)
Amortization of prior service (cost)/credit	3,905	3,631	3,629
Amortization of transition (obligation)	(70)	(79)	(83)
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	6,418	128,190	13,569
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Settlements/curtailments	(46)
Asset/liability loss (gain)	(6,492)
Amortization of actuarial (loss)	(3,117)
Amortization of prior service (cost)/credit	(35)
Amortization of transition (obligation)	(70)
Currency impact	(726)
Total recognized in other comprehensive income	(10,486)
Total recognized in net periodic benefit cost and other comprehensive income	(4,068)
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Net periodic benefit cost	3,410	4,311	5,101
Other changes in plan assets and benefit obligations recognized in other comprehensive income:
Settlements/curtailments
Asset/liability loss (gain)	(21,370)
Amortization of actuarial (loss)	(3,395)
Amortization of prior service (cost)/credit	3,940
Amortization of transition (obligation)
Currency impact	(285)
Total recognized in other comprehensive income	(21,110)
Total recognized in net periodic benefit cost and other comprehensive income	$ (17,700)