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Contingencies and Commitments - Undiscounted Reserve (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Undiscounted reserve    
Reserve balance at beginning of year $ 4,770 $ 5,476
Expensed 180 185
Paid (480) (891)
Reserve balance at end of year 4,470 4,770
Other liabilities and accrued items    
Undiscounted reserve    
Reserve balance at beginning of year 539  
Reserve balance at end of year $ 440 $ 539
Ending balance recorded in:    
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Accrued Liabilities, Current Accrued Liabilities, Current
Other long-term liabilities    
Undiscounted reserve    
Reserve balance at beginning of year $ 4,231  
Reserve balance at end of year $ 4,030 $ 4,231
Ending balance recorded in:    
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Other Liabilities, Noncurrent Other Liabilities, Noncurrent