Term of lessee's operating lease renewal for lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of required minimum rental payments for operating leases having an initial or remaining non-cancelable lease term in excess of one year due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

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Commitments and Contingencies (Schedule of Future Minimum Rental Payments for Operating Leases) (Details) - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Nov. 30, 2017	Feb. 28, 2019
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Term of Contract				10 years
2019	$ 9.7
2020	7.5
2021	6.1
2022	4.5
2023	3.6
Thereafter	5.8
Rental expense on operating leases	$ 9.8	$ 8.6	$ 8.1
Minimum
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Term of Contract	3 years
Maximum
Operating Leased Assets [Line Items]
Lessee, Operating Lease, Term of Contract	5 years
Noncancelable operating leases, renewal term	5 years