Equity-Based Compensation, Profit Sharing and Deferred Compensation Plans - Equity-Based Compensation Plans (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) $ / shares shares
Stock Options
Stock Option, Shares
Outstanding at beginning of period (Shares)	593,426
Granted (Shares)	18,912
Exercised (Shares)	(73,749)
Forfeited (Shares)	(3,894)
Outstanding at end of period (Shares)	534,695
Exercisable at end of period (Shares)	334,634
Weighted Average Per Share Exercise Price
Outstanding at beginning of period (Weighted Average Exercise Price) | $ / shares	$ 2,295.11
Granted (Weighted Average Exercise Price) | $ / shares	4,719.8
Exercised (Weighted Average Exercise Price) | $ / shares	1,933.3
Forfeited (Weighted Average Exercise Price) | $ / shares	3,140.57
Outstanding at end of period (Weighted Average Exercise Price) | $ / shares	2,424.62
Exercisable at end of period (Weighted Average Exercise Price) | $ / shares	$ 1,993.07
Remaining Contractual Life and Aggregate Intrinsic Value
Outstanding at end of period (Weighted Average Remaining Contract Life (Years)	5 years 3 months 18 days
Exercisable at end of period (Weighted Average Remaining Contract Life (Years)	4 years 3 months 18 days
Outstanding at end of period (Aggregate Intrinsic Value) | $	$ 1,863,010
Exercisable at end of period (Aggregate Intrinsic Value) | $	$ 1,310,360
2010 Plan
Stock Option, Shares
Outstanding at end of period (Shares)	63,869
2010 Plan | RSUs
Remaining Contractual Life and Aggregate Intrinsic Value
Outstanding at end of period (Aggregate Intrinsic Value) | $	$ 97,875
Vested, but not issued at end of period (Aggregate Intrinsic Value) | $	$ 0
2018 Plan
Stock Option, Shares
Outstanding at end of period (Shares)	115,950