XML 103 R84.htm IDEA: XBRL DOCUMENT v3.22.1
Stock Compensation Plans (Summary of Activity for Time-Based and Performance-Based RSUs) (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Stock compensation costs $ 8,433 $ 7,817
Time-Based RSUs Settled in Shares    
Shares    
Outstanding, at beginning of period (in shares) 1,329,946  
Modified from cash-settled RSUs (in shares) 31,523  
Granted (in shares) 395,486  
Vested (in shares) (356,650)  
Forfeited (in shares) (28,220)  
Outstanding, at end of period (in shares) 1,372,085  
Weighted- Average Grant Date Fair Value    
Outstanding, at beginning of period (in dollars per share) $ 52.65  
Modified from cash-settled RSUs (in dollars per share) 77.28  
Granted (in dollars per share) 53.16  
Vested (in dollars per share) 53.30  
Forfeited (in dollars per share) 56.77  
Outstanding, at end of period (in dollars per share) $ 53.11  
Performance-Based RSUs Settled in Shares    
Shares    
Outstanding, at beginning of period (in shares) 369,731  
Modified from cash-settled RSUs (in shares) 0  
Granted (in shares) 91,874  
Vested (in shares) (125,213)  
Forfeited (in shares) 0  
Outstanding, at end of period (in shares) 336,392  
Weighted- Average Grant Date Fair Value    
Outstanding, at beginning of period (in dollars per share) $ 54.28  
Modified from cash-settled RSUs (in dollars per share) 0  
Granted (in dollars per share) 77.91  
Vested (in dollars per share) 54.64  
Forfeited (in dollars per share) 0  
Outstanding, at end of period (in dollars per share) $ 60.60  
Time-Based RSUs Settled in Cash    
Shares    
Outstanding, at beginning of period (in shares) 32,647  
Granted (in shares) 2,668  
Vested (in shares) (3,471)  
Forfeited (in shares) (321)  
Outstanding, at end of period (in shares) 0