Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Nov. 03, 2013	Jul. 28, 2013	Apr. 28, 2013	Jan. 27, 2013	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Jan. 29, 2012
Deferred tax assets:
Net operating loss carryforwards	$ 55,130				$ 35,163
US federal tax credit carryforwards	27,676				20,018
Purchased intangible assets	13,363				15,683
Deferred income	10,418				13,809
Compensation accruals	7,996				7,949
Accelerated tax depreciation and amortization					1,538
Other accruals, reserves and allowances	548				519
Other, net	3,704				5,585
Total deferred tax assets	118,835				100,264
Less valuation allowance	(100,376)				(82,952)
Deferred tax assets, net	18,459				17,312
Deferred tax liabilities:
Unremitted earnings from foreign subsidiaries	8,769				8,974
Software development costs	883				891
Other, net	4,783				5,139
Total deferred tax liabilities	14,435				15,004
Net deferred tax asset	4,024				2,308
Balance sheet classification
Current assets	1,014				1,321
Non-current assets	9,286				6,019
Current liabilities	(4,574)				(2,273)
Non-current liabilities	(1,702)	(2,764)	(2,762)	(2,760)	(2,759)	(3,531)	(3,493)	(3,494)
Net deferred tax asset	$ 4,024				$ 2,308