Debt (Repayments) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2025	Jun. 30, 2026	Jun. 30, 2025	Oct. 31, 2025
Debt Instrument [Line Items]
Payments on long-term debt		$ 662.8	$ 380.1
Senior Note One Point Five Percent | Senior Notes
Debt Instrument [Line Items]
Payments on long-term debt	$ 550.0
Interest rate				1.50%