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Stockholders' Equity (Narrative) (Details)
$ / shares in Units, $ in Millions
 1 Months Ended 2 Months Ended 4 Months Ended 5 Months Ended
Jan. 31, 2024
shares
Jan. 31, 2022
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Nov. 30, 2021
USD ($)
agreement
Dec. 31, 2021
shares
Nov. 30, 2023
USD ($)
Dec. 31, 2022
$ / shares
shares
Accelerated Share Repurchases [Line Items]              
Common stock, shares authorized (in shares)     150,000,000       150,000,000
Common stock, par value (in dollars per share) | $ / shares     $ 0.01       $ 0.01
Common stock, shares outstanding (in shares)     74,517,973       74,600,815
Remaining authorized repurchase amount | $     $ 57.0        
Accelerated share repurchase              
Accelerated Share Repurchases [Line Items]              
Stock repurchase program, authorized amount | $       $ 135.0   $ 53.0  
Purchases and retirement of common stock (in shares)   113,824 371,669   952,204    
Number of share repurchase agreements entered into | agreement       2      
Accelerated share repurchase | Subsequent event              
Accelerated Share Repurchases [Line Items]              
Purchases and retirement of common stock (in shares) 82,883            
2006 Long-Term Incentive Plan              
Accelerated Share Repurchases [Line Items]              
Common stock, shares authorized (in shares)     10,000,000        
Shares available for grant (in shares)     3,650,232