XML 146 R55.htm IDEA: XBRL DOCUMENT v3.21.2
Stockholders' Equity (Stock Awards and Units Activity) (Details)
9 Months Ended
Sep. 30, 2021
$ / shares
shares
Deferred And Restricted Stock Units  
Number of Shares  
Outstanding at beginning of period (in shares) | shares 335,087
Issued (in shares) | shares 3,662
Granted (in shares) | shares 104,930
Dividend equivalents (in shares) | shares 5,547
Forfeited (in shares) | shares (4,883)
Vested (in shares) | shares (163,179)
Outstanding at end of period (in shares) | shares 281,164
Weighted Average Price  
Outstanding at beginning of period (in usd per share) | $ / shares $ 90.04
Issued (in usd per share) | $ / shares 132.68
Granted (in usd per share) | $ / shares 142.98
Dividend equivalents (in usd per share) | $ / shares 129.82
Forfeited (in usd per share) | $ / shares 115.05
Vested (in usd per share) | $ / shares 87.63
Outstanding at end of period (in usd per share) | $ / shares $ 109.85
Stock Awards and Performance Stock Units  
Number of Shares  
Outstanding at beginning of period (in shares) | shares 119,727
Granted (in shares) | shares 40,102
Dividend equivalents (in shares) | shares 2,891
Forfeited (in shares) | shares (1,053)
Vested (in shares) | shares (12,593)
Outstanding at end of period (in shares) | shares 149,074
Weighted Average Price  
Outstanding at beginning of period (in usd per share) | $ / shares $ 89.92
Granted (in usd per share) | $ / shares 143.54
Dividend equivalents (in usd per share) | $ / shares 129.79
Forfeited (in usd per share) | $ / shares 96.55
Vested (in usd per share) | $ / shares 95.03
Outstanding at end of period (in usd per share) | $ / shares $ 104.01