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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Changes in Claims | The following table sets forth the number of claims filed, the number of claims settled, dismissed or otherwise resolved, and the aggregate settlement amount during the periods presented:
Year ended December 31, |  | Opening Number of Claims |  | Claims Dismissed, Settled, or Resolved |  | New Claims |  | Closing Number of Claims |  | Amounts Paid (thousands) to Settle or Resolve
2015 |  | 3,821 |  | 116 |  | 86 |  | 3,791 |  | $164
2016 |  | 3,791 |  | 148 |  | 102 |  | 3,745 |  | 758
2017 |  | 3,745 |  | 105 |  | 90 |  | 3,730 |  | 55
2018 |  | 3,730 |  | 152 |  | 106 |  | 3,684 |  | 100
2019 |  | 3,684 |  | 51 |  | 75 |  | 3,708 |  | 25
2020 |  | 3,708 |  | 152 |  | 59 |  | 3,615 |  | $57

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