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Other Long-term Liabilities (Notes)
 6 Months Ended
Jun. 30, 2024
Other Liabilities Disclosure [Abstract]  
Other Liabilities Disclosure [Text Block] Other Long-term liabilities
Other long-term liabilities consist of the following components (dollars in thousands):
 June 30, 2024December 31, 2023
Non-current asbestos-related liabilities$22,540 $23,880 
Other long-term liabilities21,300 16,740 
Total other long-term liabilities$43,840 $40,620