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Earnings (Loss) Per Share, Stock-Based Compensation and Share Repurchase Plan (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2025
Jun. 30, 2025
Mar. 31, 2025
Sep. 30, 2024
Sep. 30, 2025
Dec. 31, 2024
Dec. 31, 2015
Dec. 31, 2014
Shareholders' Equity, Earnings Per Share And Stock-Based Compensation [Line Items]                
Number outstanding (in shares) 1,927,335       1,927,335 2,005,602    
Treasury Stock, Value, Acquired, Cost Method $ 10,000   $ 10,008   $ 30,000 $ 20,000 $ 100,000  
Treasury Stock, Shares, Acquired 440,814     422,229 1,400,000 800,000 2,000,000.0  
Share Repurchase Program, Authorized, Amount               $ 10,000
Share Repurchase Program, Remaining Authorized, Number of Shares 5,800,000       5,800,000      
Treasury Stock, Common                
Shareholders' Equity, Earnings Per Share And Stock-Based Compensation [Line Items]                
Treasury Stock, Value, Acquired, Cost Method $ 10,104 $ 10,106 $ 10,008 $ 9,990        
Treasury Stock, Shares, Acquired 400,000 471,759 479,154          
Restricted Stock Units (RSUs) [Member]                
Shareholders' Equity, Earnings Per Share And Stock-Based Compensation [Line Items]                
Compensation cost not yet recognized $ 16,000       $ 16,000      
Restricted Stock Units (RSUs) [Member] | Maximum [Member]                
Shareholders' Equity, Earnings Per Share And Stock-Based Compensation [Line Items]                
Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award         three years      
Award vesting period         3 years