Revenues from Contracts with Customers - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2019	Aug. 31, 2018	Nov. 30, 2018
Revenue from Contract with Customer [Abstract]
Revenue related to performance obligations satisfied	$ 9.6	$ 4.4	$ 27.2	$ 18.3
Revenue associated with distribution services, a portion of which related to prior periods	6.0	4.6	15.8	13.5
Receivables related to revenue from contracts with customers	205.8		205.8		$ 199.0
Deferred revenue	8.5		8.5		10.6
Deferred revenue, revenue recognized	9.4	2.2	6.3	4.0
Capitalized contract cost	4.4		4.4		$ 4.7
Expenses related to capitalized costs to fulfill a contract	$ 1.6	$ 1.5	$ 3.8	$ 1.5

Contract With Customer, Performance Obligation Satisfied

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- Definition

Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

+ References

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of revenue recognized from performance obligation satisfied or partially satisfied in previous reporting periods. Includes, but is not limited to, change in transaction price.

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