Commitments And Contingencies (Reconciliation of Such Deferred Amounts Included in Liabilities Held for Sale) (Detail) (Liabilities Held For Sale [Member], USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Liabilities Held For Sale [Member]
Product Warranty Accrual [Line Items]
Balance of deferred amounts at January 1, 2012	$ 37,113
Warranty costs incurred including payments	(2,212)
Accruals relating to pre-existing contracts (including changes in estimates)	8,020
Balance of deferred amounts included in liabilities held for sale at September 30, 2012	$ 42,921