Segment Information (Tables)

9 Months Ended

Oct. 26, 2014

Notes to financial statements [Abstract]

Financial Information by Operating Segment

	GPU		Tegra Processor			All Other			Consolidated
	(In thousands)
Three Months Ended October 26, 2014
Revenue	$	991,217	$	168,165		$	66,000		$	1,225,382
Depreciation and amortization expense	$	29,175	$	14,665		$	11,640		$	55,480
Operating income (loss)	$	294,289	$	(53,291	)	$	(27,683	)	$	213,315
Three Months Ended October 27, 2013
Revenue	$	876,833	$	111,134		$	66,000		$	1,053,967
Depreciation and amortization expense	$	38,677	$	13,164		$	10,885		$	62,726
Operating income (loss)	$	220,351	$	(64,219	)	$	(15,144	)	$	140,988
Nine Months Ended October 26, 2014
Revenue	$	2,766,560	$	466,433		$	198,000		$	3,430,993
Depreciation and amortization expense	$	88,193	$	43,395		$	34,582		$	166,170
Operating income (loss)	$	770,393	$	(169,274	)	$	(73,266	)	$	527,853
Nine Months Ended October 27, 2013
Revenue	$	2,521,058	$	266,886		$	198,000		$	2,985,944
Depreciation and amortization expense	$	116,389	$	36,479		$	31,442		$	184,310
Operating income (loss)	$	586,791	$	(202,770	)	$	(54,718	)	$	329,303

Reconciliation of Other Significant Reconciling Items from Segments to Consolidated [Table Text Block]

	Three Months Ended						Nine Months Ended
	October 26, 2014			October 27, 2013			October 26, 2014			October 27, 2013
	(In thousands)
Reconciling items included in "All Other" category :
Revenue not allocated to reporting segments	$	66,000		$	66,000		$	198,000		$	198,000
Unallocated corporate operating expenses	(42,676		)	(40,033		)	(127,709		)	(125,700		)
Stock-based compensation	(41,435		)	(34,299		)	(115,371		)	(100,091		)
Acquisition-related costs	(9,572		)	(4,577		)	(28,186		)	(22,402		)
Other non-recurring expenses	—			(2,235		)	—			(4,525		)
Total	$	(27,683	)	$	(15,144	)	$	(73,266	)	$	(54,718	)

Revenue from customers based in different geographic regions

	Three Months Ended				Nine Months Ended
	October 26,		October 27,		October 26,		October 27,
	2014		2013		2014		2013
	(In thousands)
Revenue:
Taiwan	$	405,612	$	319,018	$	1,109,388	$	927,903
China	238,212		206,374		713,442		565,504
United States	215,484		195,529		594,541		545,303
Other Asia Pacific	169,793		174,691		475,442		507,065
Other Americas	100,531		79,382		275,355		220,920
Europe	95,750		78,973		262,825		219,249
Total revenue	$	1,225,382	$	1,053,967	$	3,430,993	$	2,985,944

Revenue from significant customers,10% or more of total revenue [Table Text Block]

	Three Months Ended				Nine Months Ended
	October 26,		October 27,		October 26,		October 27,
	2014		2013		2014		2013
Revenue:
Customer A	10	%	9	%	10	%	10	%
Customer B	8	%	11	%	9	%	11	%

Accounts receivable from significant customers, 10% or more of total A/R [Table Text Block]

	October 26, 2014		January 26, 2014
Accounts Receivable:
Customer B	17	%	23	%