XML 80 R67.htm IDEA: XBRL DOCUMENT v3.22.0.1
Share-Based Compensation (Share-Based Compensation Restricted Units) (Details) - Restricted Share Units - $ / shares
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Number of Restricted Share Units      
Restricted share units outstanding, beginning balance (in shares) 552,788 619,150 717,696
Granted (in shares) 189,318 110,755 97,140
Vested (in shares) (138,420) (140,089) (160,329)
Forfeited (in shares) (32,864) (37,028) (35,357)
Restricted share units outstanding, ending balance (in shares) 570,822 552,788 619,150
Weighted-Average Grant-Date Fair Value      
Restricted share units outstanding, beginning balance (in USD per share) $ 218.11 $ 213.29 $ 210.69
Granted (in USD per share) 321.17 222.27 217.35
Vested (in USD per share) (216.63) (200.88) (204.04)
Forfeited (in USD per share) (221.32) (215.08) (213.62)
Restricted share units outstanding, ending balance (in USD per share) $ 251.95 $ 218.11 $ 213.29