Benefit Plans Benefit Plans (Detail 7) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
United States Pension Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	$ 455	$ 331	$ 264
Interest Cost	6,093	6,422	6,439
Defined Benefit Plan, Expected Return on Plan Assets	(6,965)	(7,499)	(6,906)
Amortization of Gains (Losses)	7,664	5,103	5,297
Recognized Net Gain (Loss) Due to Settlements and Curtailments	0	0	0
Net Periodic Benefit Cost	7,247	4,357	5,094
Foreign Pension Plans, Defined Benefit [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service Cost	15,011	13,699	12,819
Interest Cost	22,104	24,637	22,438
Defined Benefit Plan, Expected Return on Plan Assets	(32,989)	(34,325)	(29,354)
Amortization of Gains (Losses)	210	(339)	(198)
Recognized Net Gain (Loss) Due to Settlements and Curtailments	0	0	59
Net Periodic Benefit Cost	$ 4,336	$ 3,672	$ 5,764