Amortization of Acquisition Related Fair Value Adjustments

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The aggregate expense charged against earnings to allocate the cost of intangible assets and impairments (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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- Definition

Amount of impairment loss on investment in equity security without readily determinable fair value.

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Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

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Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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No definition available.

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The net result for the period of deducting operating expenses from operating revenues.

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No definition available.

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The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation.

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Amount of income (expense) related to nonoperating activities, classified as other.

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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Segment Information - Income by Segment and Reconciliation to Income Before Taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jan. 26, 2020	Oct. 27, 2019	Jul. 28, 2019	Apr. 28, 2019	Jan. 27, 2019	Oct. 28, 2018	Jul. 29, 2018	Apr. 29, 2018	Jan. 26, 2020	Jan. 27, 2019	Jan. 28, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)	$ 10,196	$ 17,877	$ 11,769	$ 12,167	$ 27,167	$ 44,784	$ 35,221	$ (1,673)	$ 52,009	$ 105,499	$ 66,621
Share-based compensation									52,049	66,837	50,051
Investment impairments									1,211	30,000	4,250
Changes in the fair value of contingent earn-out obligations									(2,345)	(9,419)	3,892
Non-operating (income) expense, net									(2,893)	(3,823)	(3,348)
Income before taxes									44,585	70,120	57,756
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)									124,911	186,975	160,810
Operating Segments \| Semiconductor Products Group
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income (loss)									124,911	186,975	160,810
Segment Reconciling Items \| Corporate, Non-Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Share-based compensation									52,049	66,837	50,051
Intangible amortization and impairments									16,546	26,649	27,867
Investment impairments									1,211	30,000	4,250
Changes in the fair value of contingent earn-out obligations									(2,345)	(9,419)	3,892
Restructuring and other reserves									4,621	769	6,196
Litigation cost, net of recoveries									1,340	(6,137)	2,183
Other non-segment related expenses									691	2,777	3,810
Amortization of fair value adjustments related to acquired property, plant and equipment									0	0	190
Interest expense, net									9,106	9,202	7,963
Non-operating (income) expense, net									(2,893)	(3,823)	(3,348)
Income before taxes									$ 44,585	$ 70,120	$ 57,756