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Discontinued Operations - Schedule of Components of Discontinued Operations of Statements of Operations (Details) - USD ($)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 28, 2020
Dec. 30, 2019
Dec. 31, 2018
Discontinued Operations And Disposal Groups [Abstract]      
Net sales $ 143,951 $ 556,098 $ 609,519
Cost of goods sold 136,800 531,592 555,154
Gross profit 7,151 24,506 54,365
Operating expenses:      
Selling and marketing 1,461 4,840 3,231
General and administrative 2,317 4,875 7,464
Research and development 147    
Amortization of definite-lived intangibles 809 2,698 2,698
Restructuring charges   1,601 858
Total operating expenses 4,734 14,014 14,251
Operating income 2,417 10,492 40,114
Other (expense) income:      
Interest expense (223) (1,147) (3,194)
Gain on sale of the Mobility business unit 237,253    
Other, net 1,160 2,513 5,663
Total other income, net 238,190 1,366 2,469
Income from discontinued operations before income taxes 240,607 11,858 42,583
Income tax provision (46,686) (2,478) (4,391)
Income from discontinued operations, net of income taxes $ 193,921 $ 9,380 $ 38,192
Earnings per share from discontinued operations:      
Basic earnings per share from discontinued operations $ 1.82 $ 0.09 $ 0.37
Diluted earnings per share from discontinued operations $ 1.82 $ 0.09 $ 0.28