XML 54 R41.htm IDEA: XBRL DOCUMENT v3.21.2
STOCK-BASED COMPENSATION - Restricted Shares and Stock Units (Details)
9 Months Ended
Sep. 30, 2021
$ / shares
shares
Weighted-average fair value  
Weighted-average fair value of nonvested restricted shares and restricted stock units, beginning balance (in dollars per share) | $ / shares $ 116.51
Weighted-average fair value of restricted shares and restricted stock units granted (in dollars per share) | $ / shares 188.58
Weighted-average fair value of restricted shares and restricted stock units nonvested dividend equivalents granted to non-employee directors (in dollars per share) | $ / shares 192.66
Weighted-average fair value of restricted shares and restricted stock units vested (in dollars per share) | $ / shares 103.07
Weighted-average fair value of restricted shares and restricted stock units forfeited (in dollars per share) | $ / shares 118.39
Weighted-average fair value of nonvested restricted shares and restricted stock units, ending balance (in dollars per share) | $ / shares $ 117.21
Restricted shares  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Nonvested, beginning balance (in shares) 7,412
Grants (in shares) 4,336
Nonvested dividend equivalents granted to non-employee directors (in shares) 0
Vested (in shares) (7,412)
Forfeited (in shares) 0
Nonvested, ending balance (in shares) 4,336
Restricted stock units  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Nonvested, beginning balance (in shares) 6,367,059
Grants (in shares) 29,314
Nonvested dividend equivalents granted to non-employee directors (in shares) 2,978
Vested (in shares) (99,091)
Forfeited (in shares) (137,390)
Nonvested, ending balance (in shares) 6,162,870
Restricted stock units | Performance-based  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Nonvested, ending balance (in shares) 335,162
Weighted-average fair value  
Nonvested shares where performance threshold has been met (in shares) 188,612