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Commitments and Contingencies (Narrative) (Details) $ in Millions | Dec. 31, 2020 USD ($) claim | Dec. 31, 2019 claim | Dec. 31, 2018 claim | Dec. 31, 2017 claim | Dec. 31, 2016 claim | Dec. 31, 2015 claim | Dec. 31, 2014 claim
--- | --- | --- | --- | --- | --- | --- | ---
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of pending claims | 3,615 |  |  |  |  |  |
Brandon Drying Fabrics, Inc. |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of pending claims | 12 |  |  |  |  |  |
Asbestos Litigation |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Number of pending claims | 3,615 | 3,708 | 3,684 | 3,730 | 3,745 | 3,791 | 3,821
Total resolved claims, by means of settlement or dismissal | 37,949 |  |  |  |  |  |
Total cost of resolution | $ | $ 10.4 |  |  |  |  |  |
Resolution costs paid by insurance carrier | 100.00% |  |  |  |  |  |
Confirmed insurance coverage | $ | $ 140.0 |  |  |  |  |  |
Asbestos Litigation | Brandon Drying Fabrics, Inc. |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Total resolved claims, by means of settlement or dismissal | 7,710 |  |  |  |  |  |
Resolution costs paid by insurance carrier | 100.00% |  |  |  |  |  |

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