Equity Based Compensation Plans - Summary of Stock Options Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Shares
Outstanding at beginning of year (in shares)	613,109	572,971	612,954
Granted (in shares)	99,479	149,020	148,147
Exercised (in shares)	(248,725)	(70,802)	(182,817)
Forfeited and canceled (in shares)	0	(38,080)	(5,313)
Outstanding at end of year (in shares)	463,863	613,109	572,971
Options exercisable at year end (in shares)	274,244	361,985	305,379
Weighted- average exercise price
Outstanding at beginning of year (in dollars per share)	$ 255.86	$ 251.10	$ 224.57
Granted (in dollars per share)	329.71	244.74	304.85
Exercised (in dollars per share)	231.37	208.57	205.25
Forfeited and canceled (in dollars per share)	0	228.64	257.87
Outstanding at end of year (in dollars per share)	284.82	255.86	251.10
Options exercisable at year end (in dollars per share)	$ 270.11	$ 245.83	$ 223.90