Leases - Components of Lease Expense (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020
Leases [Abstract]
Operating lease cost	$ 45.0	$ 41.2
Amortization of ROU assets	9.0	9.0
Interest on lease liabilities	4.3	4.5
Net lease cost	$ 58.3	$ 54.7