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Other Long-term Liabilities Other Long-term Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2020
Other Liabilities Disclosure [Abstract] |
Other Noncurrent Liabilities [Table Text Block] | Other long-term liabilities consist of the following components (dollars in thousands):
|  | September 30, 2020 |  | December 31, 2019
Non-current asbestos-related liabilities |  | $ | 26,840 |  |  | $ | 6,200 |
Other long-term liabilities |  | 30,410 |  |  | 34,610 |
Total other long-term liabilities |  | $ | 57,250 |  |  | $ | 40,810 |

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