Discontinued Operations (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 03, 2021	Jul. 04, 2020	Jul. 03, 2021	Jul. 04, 2020	Apr. 22, 2021	Jan. 02, 2021
Transition Services Agreement | Minimum
Liabilities
Agreement term			3 months
Transition Services Agreement | Maximum
Liabilities
Agreement term			18 months
Discontinued operations held-for-sale | Infrastructure and automotive business
Income from discontinued operations, net of income taxes
Revenues	$ 108,064,000	$ 93,183,000	$ 205,712,000	$ 190,042,000
Costs of revenues and operating expenses	70,143,000	54,352,000	130,917,000	113,948,000
Income from discontinued operations before income taxes	37,921,000	38,831,000	74,795,000	76,094,000
Provision (benefit) for income taxes	(502,000)	4,609,000	(2,293,000)	8,237,000
Income from discontinued operations	$ 38,423,000	$ 34,222,000	$ 77,088,000	$ 67,857,000
Income from discontinued operations per share:
Basic	$ 0.86	$ 0.78	$ 1.73	$ 1.55
Diluted	$ 0.84	$ 0.78	$ 1.68	$ 1.53
Assets
Inventories	$ 30,176,000		$ 30,176,000			$ 18,801,000
Prepaid expenses and other current assets	1,876,000		1,876,000			2,204,000
Goodwill	255,543,000		255,543,000			255,543,000
Other assets	9,947,000		9,947,000			9,772,000
Total assets held for sale	297,543,000		297,543,000			286,321,000
Liabilities
Other current liabilities	699,000		699,000			433,000
Other non-current liabilities						451,000
Total liabilities held for sale	$ 699,000		$ 699,000			$ 884,000
Discontinued operations held-for-sale | Infrastructure and automotive business | Skyworks Solutions, Inc.
Discontinued Operations
Asset Purchase Agreement sale amount					$ 2,750,000,000