Nonpension Postretirement Benefits (Pre-tax Amounts Recognized in Accumulated Other Comprehensive Loss) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Nonpension Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	$ 19,771	$ 16,970
Prior service cost	(904)	2,190
Total cost (credit)	18,867	19,160
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	20,087	17,254
Prior service cost	(904)	2,190
Total cost (credit)	19,183	19,444
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss (gain)	(316)	(284)
Prior service cost	0	0
Total cost (credit)	$ (316)	$ (284)