Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for issuance under the 2016 Plan (in shares)	1,338,673		1,338,673
Stock options, granted (in shares)			88,588
Stock options, weighted average exercise price (in dollars per share)			$ 348.50
Stock options, weighted average grant date fair value (in dollars per share)			$ 134.33
Risk-free interest rate (in hundredths)			4.30%
Expected life (in years)			6 years
Stock volatility (in hundredths)			32.00%
Dividend yield (in hundredths)			0.30%
Stock-based compensation expense	$ 5.1	$ 5.9	$ 14.4	$ 21.9
Performance Share Unit (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			34,188
Grant date fair value (in dollars per share)			$ 348.46
Performance Share Unit (PSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target award percentage			0.00%
Performance Share Unit (PSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target award percentage			200.00%
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)			8,302
Grant date fair value (in dollars per share)			$ 342.74