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WARRANTY LIABILITY (Detail) - Summary of changes in warrant liability included in Accrued liabilities (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Balance, beginning of period	$ 8,856	$ 7,963
Warranties issued and charges in estimated pre-existing warranties	(6)	2,030
Actual warranty costs incurred	(1,107)	(1,040)
Balance, end of period	$ 7,743	$ 8,953

- 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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