XML 127 R97.htm IDEA: XBRL DOCUMENT v3.22.0.1
Equity and Cash Incentive Program - Performance Shares and RSU Activity (Details) - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Performance Shares      
Number of Shares      
Unvested, beginning balance (in shares) 77,979    
Granted (in shares) 50,371 49,056 35,172
Vested (in shares) (27,031)    
Unvested, ending balance (in shares) 96,129 77,979  
Weighted Average Grant-Date Fair Value      
Unvested, beginning balance (in dollars per share) $ 138.14    
Granted (in dollars per share) 148.29 $ 165.71 $ 91.20
Vested (in dollars per share) 91.37    
Unvested, ending balance (in dollars per share) $ 156.88 $ 138.14  
Restricted Stock Units (RSUs)      
Number of Shares      
Unvested, beginning balance (in shares) 252,907    
Granted (in shares) 87,177 83,512 124,929
Forfeited (in shares) (10,741)    
Vested (in shares) (126,661)    
Unvested, ending balance (in shares) 202,682 252,907  
Weighted Average Grant-Date Fair Value      
Unvested, beginning balance (in dollars per share) $ 93.43    
Granted (in dollars per share) 122.73 $ 119.86 $ 91.2
Forfeited (in dollars per share) 114.85    
Vested (in dollars per share) 91.75    
Unvested, ending balance (in dollars per share) $ 107.03 $ 93.43