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Warranties (Product Warranty Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012
Warranties
Balance at December 31, 2011	$ 21,642
Warranty claims	(37,643)
Warranty accruals	43,232
Balance at September 30, 2012	$ 27,231

- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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