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Contingencies (Schedule of Product Warranties Accrual) (Details) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011
Contingencies
Balance at January 1, 2011	$ 2,653
Product warranty adjustments	(326)
Payments and settlements	(487)
Balance at June 30, 2011	$ 1,840

- 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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