Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2012

Commitments and Contingencies [Abstract]

Reconciliation of Deferred Amounts

Balance of deferred amounts at January 1, 2012	$	37,113
Warranty costs incurred including payments		(1,607	)
Accruals relating to pre-existing contracts (including changes in estimates)		4,458
Balance of deferred amounts included in liabilities held for sale at June 30, 2012		39,964