Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities.

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Name:	us-gaap_EquityMethodInvestmentDividendsOrDistributions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Investments - Berkadia - Narrative (Details) - Berkadia - USD ($) $ in Millions	12 Months Ended
	Nov. 30, 2019	Nov. 30, 2018	Oct. 01, 2018
Schedule of Equity Method Investments [Line Items]
Percentage of profits received from joint venture			45.00%
Purchase commitment amount	$ 360.4	$ 723.8
Cash distribution from equity method investment	$ 65.0
Jefferies Financial Group Inc. \| Affiliated Entity
Schedule of Equity Method Investments [Line Items]
Ownership percentage			50.00%