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Long-Term Debt (Narrative) (Details) - USD ($)
 3 Months Ended
Nov. 09, 2023
Mar. 04, 2022
Oct. 07, 2021
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
Debt Instrument [Line Items]            
Interest expense       $ 800,000 $ 700,000  
Debt repurchase program, principal reduction amount $ 300,000,000          
Principal retired       9,700,000 63,500,000  
Reclassified amount of long term debt       6,126,000   $ 18,902,000
Net (loss) gain on debt extinguishment       (77,000) $ 4,865,000  
Senior Notes            
Debt Instrument [Line Items]            
Retired debt, principal       216,600,000    
Senior Notes | 2026 Notes            
Debt Instrument [Line Items]            
Notes payable, fair value       239,200,000   246,200,000
Debt instrument, face amount     $ 305,000,000      
Proceeds from issuance of senior long-term debt     $ 301,200,000      
Stated interest rate     6.00%      
Covenant, leverage ratio, minimum     3.0      
Covenant, leverage ratio, maximum     3.0      
Covenant, restriction on payments, aggregate amount, maximum     $ 100,000,000      
Covenant, earnings before interest, taxes, depreciation, and amortization, maximum     50.00%      
Senior Notes | 2028 Notes            
Debt Instrument [Line Items]            
Notes payable, fair value       340,400,000   $ 346,100,000
Debt instrument, face amount     $ 500,000,000      
Stated interest rate     6.50%      
Covenant, leverage ratio, minimum     3.0      
Covenant, leverage ratio, maximum     3.0      
Covenant, restriction on payments, aggregate amount, maximum     $ 100,000,000      
Covenant, earnings before interest, taxes, depreciation, and amortization, maximum     50.00%      
Line of Credit | Revolving Credit Facility            
Debt Instrument [Line Items]            
Line of credit facility, maximum borrowing capacity   $ 25,000,000        
Line of credit facility, accordion feature, increase limit   $ 25,000,000        
Long-term line of credit       $ 0    
Line of Credit | Revolving Credit Facility | Minimum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate   1.75%        
Line of Credit | Revolving Credit Facility | Maximum            
Debt Instrument [Line Items]            
Debt instrument, basis spread on variable rate   2.50%