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Debt (Debt Repurchases) (Details) - USD ($)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Sep. 25, 2014
Mar. 19, 2013
Debt Instrument [Line Items]          
Gain (loss) on extinguishment of debt $ 4,693,000 $ 5,319,000 $ (4,795,000)    
6.00% Senior Notes due 2026          
Debt Instrument [Line Items]          
Stated interest rate 6.00% 6.00%      
5.875% Senior Notes due 2024          
Debt Instrument [Line Items]          
Stated interest rate 5.875% 5.875%      
5.125% Senior Notes due 2023          
Debt Instrument [Line Items]          
Stated interest rate 5.125% 5.125%      
5.875% Senior Notes due 2022          
Debt Instrument [Line Items]          
Stated interest rate 5.875% 5.875%      
Amended Credit Agreement          
Debt Instrument [Line Items]          
Maximum borrowing capacity $ 100,000,000.0        
Senior Notes and Term Loan          
Debt Instrument [Line Items]          
Debt instrument, repurchased face amount On February 11, 2021, the Company’s Board of Directors authorized a new repurchase program for repurchases/retirements of the above referenced Senior Notes and term loan, subject to certain limitations up to an aggregate maximum of $100.0        
Senior Notes          
Debt Instrument [Line Items]          
Gain (loss) on extinguishment of debt   $ 5,300,000      
Senior Notes | 6.00% Senior Notes due 2026          
Debt Instrument [Line Items]          
Stated interest rate 6.00% 6.00%      
Senior Notes | 5.875% Senior Notes due 2024          
Debt Instrument [Line Items]          
Stated interest rate 5.875% 5.875%   5.875%  
Debt instrument, repurchased face amount   $ 7,500,000      
Percentage of principal amount redeemed   77.28%      
Repurchase amount   $ 5,800,000      
Senior Notes | 5.125% Senior Notes due 2023          
Debt Instrument [Line Items]          
Stated interest rate 5.125% 5.125%     5.125%
Debt instrument, repurchased face amount $ 22,500,000 $ 18,200,000      
Percentage of principal amount redeemed 90.68% 78.99%      
Repurchase amount $ 20,400,000 $ 14,300,000      
Gain (loss) on extinguishment of debt $ 4,700,000        
Senior Notes | 5.875% Senior Notes due 2022          
Debt Instrument [Line Items]          
Stated interest rate 5.875% 5.875%