Benefit Plans Benefit Plans (Detail 4) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial losses (gains)	$ 60,941
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Net of Tax	46,792	79,947	5,424
Prior service costs	(22,491)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Plan Amendments and Prior Service Costs arising during the period, net of tax	(18,017)	274	405
Defined Benefit Plans, Amortization of Gains, Losses and Other Expenses	(9,320)
Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, Net of Tax	(6,118)
Amortization of Prior service costs in Net Periodic Benefits Costs, before tax	2,283
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost Recognized in Net Periodic Benefit Cost, after tax	1,857
Defined Benefit Plans, Impact of FX on Current Year Change in OCI	2,355
Defined Benefit Plans, Impact of FX on Current Year Change in OCI, net of tax	1,931	(3,604)	(2,030)
Defined Benefit Plan, Changes in OCI Arising During the Period	33,768
Defined Benefit Plan, Changes in OCI Arising During the Period, net of tax	26,445
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial losses (gains)	7,648
Prior service costs	0
Defined Benefit Plans, Amortization of Gains, Losses and Other Expenses	(7,664)
Amortization of Prior service costs in Net Periodic Benefits Costs, before tax	0
Defined Benefit Plans, Impact of FX on Current Year Change in OCI	0
Defined Benefit Plan, Changes in OCI Arising During the Period	(16)
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial losses (gains)	55,352
Prior service costs	(22,491)
Defined Benefit Plans, Amortization of Gains, Losses and Other Expenses	(2,495)
Amortization of Prior service costs in Net Periodic Benefits Costs, before tax	2,369
Defined Benefit Plans, Impact of FX on Current Year Change in OCI	2,355
Defined Benefit Plan, Changes in OCI Arising During the Period	35,090
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Net actuarial losses (gains)	(2,059)
Prior service costs	0
Defined Benefit Plans, Amortization of Gains, Losses and Other Expenses	839
Amortization of Prior service costs in Net Periodic Benefits Costs, before tax	(86)
Defined Benefit Plans, Impact of FX on Current Year Change in OCI	0
Defined Benefit Plan, Changes in OCI Arising During the Period	$ (1,306)