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Subsequent Events (Details) $ in Millions				9 Months Ended
Subsequent Events (Details) $ in Millions	Oct. 15, 2025 USD ($)	Oct. 03, 2025 director shares	Oct. 02, 2025 director	Sep. 30, 2025 shares	Sep. 30, 2024 shares
Performance stock units \| Maximum
Subsequent Events
Number of stock units granted \| shares				290,120	364,810
Subsequent Event
Subsequent Events
Number Of Directors On the Board \| director		11	10
Subsequent Event \| Pentax acquisition
Subsequent Events
Total consideration for asset acquisition \| $	$ 22
Subsequent Event \| Pentax acquisition \| Forecast
Subsequent Events
Cash payments \| $	19
Contingent payments \| $	$ 3
Subsequent Event \| Restricted stock units
Subsequent Events
Number of stock units granted \| shares		19,594
Share-Based Payment Arrangement, Grantee Status [Extensible Enumeration]		Share-Based Payment Arrangement, Employee [Member]
Subsequent Event \| Performance stock units
Subsequent Events
Share-Based Payment Arrangement, Grantee Status [Extensible Enumeration]		Share-Based Payment Arrangement, Employee [Member]
Subsequent Event \| Performance stock units \| Maximum
Subsequent Events
Number of stock units granted \| shares		73,478