Asbestos Litigation (Details 1) - USD ($) $ in Thousands |
Mar. 29, 2019 |
Dec. 31, 2018 |
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|---|---|---|---|---|---|---|---|---|---|
| Commitments and Contingencies Disclosure [Abstract] | |||||||||
| Long-term asbestos insurance asset | [1] | $ 278,183 | $ 278,662 | ||||||
| Long-term asbestos insurance receivable | [1] | 64,828 | 62,523 | ||||||
| Accrued asbestos liability | [2] | 58,556 | 56,045 | ||||||
| Long-term asbestos liability | [3] | $ 282,298 | $ 288,962 | ||||||
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