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Warranties (Product Warranty Liabilities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Warranties
Balance at January 1,	$ 21,642	$ 22,429
Warranty claims	(50,009)	(46,779)
Warranty accruals	56,368	45,992
Balance at December 31,	$ 28,001	$ 21,642

- 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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