Pension and Other Postretirement Benefits - Information About Accumulated and Projected Benefit Obligations In Excess of Plan Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	$ 151,687	$ 80,898
Accumulated Benefit Obligation	145,836	79,450
Fair Value of Plan Assets	106,900	51,642
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	151,687	127,807
Fair Value of Plan Assets	106,900	98,438
Domestic [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	70,407	66,226
Accumulated Benefit Obligation	69,951	65,820
Fair Value of Plan Assets	45,991	43,470
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	70,407	66,226
Fair Value of Plan Assets	45,991	43,470
Foreign [Member]
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	81,280	14,672
Accumulated Benefit Obligation	75,885	13,630
Fair Value of Plan Assets	60,909	8,172
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets [Abstract]
Projected Benefit Obligation	81,280	61,581
Fair Value of Plan Assets	$ 60,909	$ 54,968