Net Income Per Share (Tables)

12 Months Ended

Jan. 29, 2012

Notes to financial statements [Abstract]

Reconciliation of numerators and denominators of basic and diluted net income (loss) per share computations

	Year Ended
	January 29, 2012		January 30, 2011		January 31, 2010
	(In thousands, except per share data)
Numerator:
Net income (loss)	$	581,090	$	253,146	$	(67,987	)
Denominator:
Denominator for basic net income (loss) per share, weighted average shares	603,646		575,177		549,574
Effect of dilutive securities:
Equity Awards outstanding	12,725		13,507		—
Denominator for diluted net income (loss) per share, weighted average shares	616,371		588,684		549,574
Net income (loss) per share:
Basic net income (loss) per share	$	0.96	$	0.44	$	(0.12	)
Diluted net income (loss) per share	$	0.94	$	0.43	$	(0.12	)
Potentially dilutive securities excluded from income per diluted share because their effect would have been anti-dilutive	22,617		24,646		29,313