Pensions and Other Postretirement Benefit Plans (Schedule of Plan Assets) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, beginning of year	$ 173,434	$ 304,658
Actual return on plan assets, net of expenses	(2,292)	19,493
Employer contributions	6,777	110,172
Plan participants' contributions	331	344
Benefits paid	(5,999)	(14,909)
Settlements	(1,650)	(249,709)
Foreign currency changes	(2,211)	3,385
Fair value of plan assets, end of year	168,390	173,434
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, beginning of year
Actual return on plan assets, net of expenses
Employer contributions	4,438	4,961
Plan participants' contributions
Plan participants' contributions	1,335	817
Benefits paid	(5,773)	(5,778)
Settlements
Foreign currency changes
Fair value of plan assets, end of year