Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options granted during the period (in shares)	244,000	353,000
Fair value per share (in dollars per share)	$ 173.78	$ 128.89
Cash received from exercise of options	$ 39.3	$ 24.6
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	337,000	219,000
Weighted-average grant date fair value (in dollars per share)	$ 557.15	$ 428.20
Restricted stock awards vested during period (in shares)	100,000
Weighted average grant date fair value per share (in dollars per share)	$ 437.34
Weighted average vest date fair value per share (in dollars per share)	$ 556.38
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percentage of eligible earnings to purchase common stock through the employee stock purchase plan	10.00%
Discount on the average closing price for the employee stock purchase plan	10.00%
Shares of stock purchased during the period by participants in the employee stock purchase plan (in shares)	12,000.000	12,000.000
Proceeds from issuance of shares under employee stock purchase plan	$ 5.8	$ 4.7
Performance/market-based
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	72,000.000
Vesting period	3 years
Performance/market-based | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage	200.00%
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	120,000
Vesting period	3 years
Performance-based restricted stock awards (in shares)		71,000.000
Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage		100.00%