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Guarantees (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 27, 2014	Apr. 28, 2013
Estimated product warranty liabilities
Balance at beginning of period	$ 7,571	$ 14,874
Additions	2,034	1,418
Deductions	(1,355)	(1,459)
Balance at end of period	$ 8,250	$ 14,833

- 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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