Share-Based Compensation - Status of Stock Options (Details) - Stock options - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Number of Options
Outstanding at beginning of the period (in shares)	6,213,853
Granted (in shares)	534,277
Exercised (in shares)	(327,267)	(539,100)
Forfeited (in shares)	0
Outstanding at the end of the period (in shares)	6,420,863
Exercisable at the end of the period (in shares)	5,427,581
Unvested at the end of the period (in shares)	993,282
Weighted Average Exercise Price
Outstanding at beginning of the period (in dollars per share)	$ 136.60
Granted (in dollars per share)	235.78
Exercised (in dollars per share)	128.92
Forfeited (in dollars per share)	0
Outstanding at the end of the period (in dollars per share)	145.24
Exercisable at the end of the period (in dollars per share)	130.19
Unvested at the end of the period (in dollars per share)	$ 227.50
Weighted Average Remaining Contractual Term (in Years)
Outstanding at the end of the period (in Years)	4 years
Exercisable at the end of the period (in Years)	2 years 10 months 24 days
Unvested at the end of the period (in Years)	9 years 6 months
Aggregate Intrinsic Value (in millions)
Outstanding at the end of the period	$ 545.9
Exercisable at the end of the period	540.5
Unvested at the end of the period	$ 5.4