Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Employee stock options granted during the period (in shares)	263	363
Fair value per share (in dollars per share)	$ 173.72	$ 129.01
Cash received from exercise of options	$ 88.1	$ 70.9
Restricted Stock Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards granted (in shares)	368	242
Weighted-average grant date fair value (in dollars per share)	$ 555.12	$ 431.05
Restricted stock awards vested during period (in shares)	105
Weighted average grant date fair value per share (in dollars per share)	$ 438.44
Weighted average vest date fair value per share (in dollars per share)	$ 555.71
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards granted (in shares)	129	71
Vesting period	3 years
Performance Shares | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights, percentage		100.00%
Performance/market-based
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock awards granted (in shares)	72
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%
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)	21	21
Proceeds from issuance of shares under employee stock purchase plan	$ 10.3	$ 8.4