Debt - Summary (Details) - USD ($) $ in Millions	May 31, 2026	Nov. 30, 2025
Schedule of Long-term and Short-term Debt Instruments [Line Items]
Long-term debt	$ 1,043.0	$ 1,039.2
4.000% Senior Notes Due 2030 \| Senior Notes
Schedule of Long-term and Short-term Debt Instruments [Line Items]
Stated interest rate	4.00%
Long-term debt	$ 546.7	543.3
3.50% Senior Notes Due 2031 \| Senior Notes
Schedule of Long-term and Short-term Debt Instruments [Line Items]
Stated interest rate	3.50%
Long-term debt	$ 496.3	$ 495.9

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details