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Restructuring, Impairment and Other Charges (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 28, 2019 | Sep. 28, 2019 | Jun. 29, 2019 | Mar. 30, 2019 | Dec. 29, 2018 | Sep. 29, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 28, 2019 | Dec. 29, 2018 | Dec. 30, 2017 | Apr. 30, 2019
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | $ 12,711 | $ 10,365 | $ 2,227 |
Impairment | $ 4,200 |  | $ 200 | $ 2,800 |  |  |  |  | 322 | 2,218 | 0 |
Total | 2,100 | $ 2,500 | 5,700 |  |  |  |  |  | 13,033 | 12,583 |  |
Restructuring reserves | 2,700 |  |  |  | $ 3,900 |  |  |  | 2,700 | 3,900 |  |
Acquisition related costs | $ 1,900 | $ 3,200 | $ 1,500 | $ 2,400 | $ 3,200 | $ 2,900 | $ 2,400 | $ 11,700 |  |  |  |
Employee terminations |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | 10,359 | 9,503 | 1,993 |
Restructuring reserves |  |  |  |  |  |  |  |  |  |  |  | $ 1,700
Other restructuring charges |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | 2,352 | 862 | 234 |
Restructuring reserves |  |  |  |  |  |  |  |  |  |  |  | $ 1,400
Electronics |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | 5,501 | 9,412 | 1,478 |
Impairment |  |  |  |  |  |  |  |  | 0 | 0 |  |
Total |  |  |  |  |  |  |  |  | 5,501 | 9,412 |  |
Electronics | Employee terminations |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | 5,313 | 8,742 | 1,244 |
Electronics | Other restructuring charges |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | 188 | 670 | 234 |
Automotive |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | 5,965 | 826 | 371 |
Impairment |  |  |  |  |  |  |  |  | 322 | 88 |  |
Total |  |  |  |  |  |  |  |  | 6,287 | 914 |  |
Automotive | Employee terminations |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | 4,251 | 634 | 371 |
Automotive | Other restructuring charges |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | 1,714 | 192 | 0 |
Industrial |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | 1,245 | 127 | 378 |
Impairment |  |  |  |  |  |  |  |  | 0 | 2,130 |  |
Total |  |  |  |  |  |  |  |  | 1,245 | 2,257 |  |
Industrial | Employee terminations |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | 795 | 127 | 378 |
Industrial | Other restructuring charges |  |  |  |  |  |  |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Total restructuring charges |  |  |  |  |  |  |  |  | $ 450 | $ 0 | $ 0 |

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