Investments - Summary of Selected Financial Information for Jefferies Finance (Detail) - Jefferies Finance, LLC [Member] - USD ($) $ in Millions	Feb. 28, 2017	Nov. 30, 2016
Schedule of Equity Method Investments [Line Items]
Total assets	$ 7,455.0	$ 7,277.3
Total liabilities	6,471.9	6,336.3
Total equity	983.1	941.1
Our total equity balance	$ 491.5	$ 470.5

The amount of assets reported by an equity method investment of the entity.

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Amount of equity, excluding noncontrolling interest, attributable to the equity method investment of the entity.

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The amount of liabilities reported by an equity method investment of the entity.

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