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v3.20.4

Dispositions (Details) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 29, 2018 site | Sep. 30, 2018 USD ($) | Jun. 30, 2018 USD ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |
Loss on sale of business |  |  |  | $ 0 | $ 0 | $ (7,727)
Inventory write-down |  |  |  | $ 14,900 | $ 17,100 | 16,200
FPD |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Divestiture of locations | site | 2 |  |  |  |  |
Pre-tax impairment charge |  |  | $ 17,400 |  |  | $ 25,100
Loss on sale of business |  | $ 7,700 |  |  |  |
Inventory write-down |  |  | 7,700 |  |  |
Asset impairment charges |  |  | $ 9,700 |  |  |
Cash transfer from sale, net |  | $ 3,700 |  |  |  |

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