Quartely Summary (Tables)

12 Months Ended

Jan. 25, 2015

Quarterly Financial Data [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

	Fiscal Year 2015 Quarters Ended
	January 25, 2015		October 26, 2014		July 27, 2014		April 27, 2014
	(In thousands, except per share data)
Statement of Income Data:
Revenue	$	1,250,514	$	1,225,382	$	1,102,824	$	1,102,787
Cost of revenue	$	550,911	$	548,684	$	483,850	$	498,585
Gross profit	$	699,603	$	676,698	$	618,974	$	604,202
Net income	$	193,128	$	172,967	$	127,976	$	136,516
Net income per share:
Basic	$	0.35	$	0.32	$	0.23	$	0.24
Diluted	$	0.35	$	0.31	$	0.22	$	0.24

	Fiscal Year 2014 Quarters Ended
	January 26, 2014		October 27, 2013		July 28, 2013		April 28, 2013
	(In thousands, except per share data)
Statement of Income Data:
Revenue	$	1,144,218	$	1,053,967	$	977,238	$	954,739
Cost of revenue	$	524,976	$	469,552	$	431,700	$	436,171
Gross profit	$	619,242	$	584,415	$	545,538	$	518,568
Net income	$	146,917	$	118,734	$	96,448	$	77,891
Net income per share:
Basic	$	0.26	$	0.20	$	0.16	$	0.13
Diluted	$	0.25	$	0.20	$	0.16	$	0.13