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Earnings Per Share - Share Reconciliation of Number of Common Shares Used in Calculating Basic and Diluted Net Earnings Per Share (Details) - $ / shares
 3 Months Ended 12 Months Ended
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Weighted average number of shares outstanding, basic 16,724 16,620 16,661 16,607 16,638 16,682 16,865 16,834 16,781,000 16,863,000 16,985,000
Weighted average number of shares outstanding, diluted 16,724 16,620 16,661 16,607 16,638 16,895 16,958 17,036 16,781,000 17,091,000 17,181,000
Earnings per share, basic $ 11.91 $ 0.35 $ (1.55) $ 1.03 $ 1.06 $ 2.20 $ 1.76 $ 1.41 $ 11.70 $ 6.39 $ 2.71
Earnings per share, diluted $ 11.91 $ 0.35 $ (1.55) $ 1.03 $ 1.06 $ 2.17 $ 1.75 $ 1.40 $ 11.70 $ 6.30 $ 2.68
Anti-dilutive shares excluded from calculation                 300,000 300,000 300,000
Restricted Stock Units (RSUs) [Member]                      
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements                 0 148,000 196,000
Performance Shares [Member]                      
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements                 0 80,000 0