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Contingencies and Commitments (Details) £ in Millions, $ in Millions	1 Months Ended		3 Months Ended	9 Months Ended
	Aug. 31, 2026 USD ($)	Jul. 31, 2026 USD ($)	Jul. 31, 2026 USD ($)	Jul. 31, 2026 USD ($)	Mar. 02, 2026 GBP (£)
Loss Contingencies [Line Items]
Loss contingency, loss in period			$ 0.4	$ 272.0
Accrued litigation liability		$ 325.8	325.8	325.8
Insurance recoveries		53.8	$ 53.8	$ 53.8
Litigation settlement, amount awarded to other party		$ 10.0
Minimum
Loss Contingencies [Line Items]
Loss contingency, range of possible loss \| £					£ 0.0
Lease term (in years)		20 years	20 years	20 years
Maximum
Loss Contingencies [Line Items]
Loss contingency, range of possible loss \| £					£ 71.7
Lease term (in years)		24 years	24 years	24 years
Operating leases not yet commenced
Loss Contingencies [Line Items]
Undiscounted lease payments		$ 140.2	$ 140.2	$ 140.2
Subsequent Event
Loss Contingencies [Line Items]
Insurance recoveries	$ 43.8
Litigation settlement, amount awarded to other party	$ 306.8