Note 11. Goodwill and Other Intangibles (Detail) (USD $)	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Impairment of Intangible Assets, Finite-lived	$ 6,569,000	$ 55,100,000
Goodwill, Impairment Loss		45,108,000
Amortization of Acquired Intangible Assets	11,600,000	18,700,000	19,600,000
Other Research and Development Expense [Member]
Impairment of Intangible Assets, Finite-lived		11,100,000
Goodwill, Impairment Loss		45,100,000
Software, Equipment, and Leasehold Improvements [Member]
Impairment of Intangible Assets, Finite-lived	2,600,000
Intellectual Property [Member]
Impairment of Intangible Assets, Finite-lived	8,200,000
Licensing Agreements [Member]
Impairment of Intangible Assets, Finite-lived	400,000
Developed Products [Member]
Impairment of Intangible Assets, Finite-lived	4,600,000
Products in Development [Member]
Impairment of Intangible Assets, Finite-lived	$ 6,600,000