Stock Plans - Weighted Average Risk Assumptions (Details) - Performance Stock Unit	6 Months Ended
	Jun. 30, 2025 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per unit (dollars per share)	$ 160.53
Monte Carlo Approach
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Fair value per unit (dollars per share)	$ 160.54
Risk-free interest rate	4.28%
Expected dividend yield	1.14%
Expected volatility	25.30%
MSA stock beta	0.744