Stock-Based Compensation (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended	3 Months Ended		6 Months Ended
	Feb. 28, 2025	May 31, 2025	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of additional shares authorized (in shares)		2,000,000.0
Shares available for issuance under the 2016 Plan (in shares)			3,100,000		3,100,000
Stock options, granted (in shares)					57,771
Stock options, weighted average exercise price (in dollars per share)					$ 211.39
Stock options, weighted average grant date fair value (in dollars per share)					$ 91.12
Risk-free interest rate (in hundredths)					4.40%
Expected life (in years)					6 years 4 months 24 days
Stock volatility (as a percent)					36.80%
Dividend yield (as a percent)					0.40%
Stock-based compensation expense			$ 7.4	$ 4.3	$ 8.7	$ 9.3
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Rate shares are reduced for each award granted (in shares)		1
Award Types Other than Stock Options and Stock Appreciation Rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Rate shares are reduced for each award granted (in shares)	2.5	2.0
Performance Share Unit (PSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)					49,819
Grant date fair value (in dollars per share)					$ 211.38
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)					44,116
Grant date fair value (in dollars per share)					$ 211.57