Commitments and Contingent Liabilities (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012
Commitments and Contingencies Disclosure [Abstract]
Accrual for Environmental Loss Contingencies	$ 30,056		$ 28,875
Loss Contingency Accrual, at Carrying Value	1,007		1,158
Letters of Credit [Abstract]
Outstanding in letters of credit with financial institutions	126,006
Letters of Credit Expiration Dates	2013 through 2017
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Beginning Balance	43,759	37,739
Provision for warranties	27,206	24,270
Settlements made	(25,017)	(22,971)
Other adjustments, including currency translation	(1,479)	2,454
Ending Balance	$ 44,469	$ 41,492