Investments - Summary of Selected Financial Information for Jefferies Finance (Detail) - Jefferies Finance, LLC [Member] - USD ($) $ in Millions	May 31, 2016	Nov. 30, 2015
Schedule of Equity Method Investments [Line Items]
Total assets	$ 7,056.1	$ 7,292.1
Total liabilities	6,140.2	6,297.3
Total equity	915.9	994.8
Our total equity balance	$ 458.0	$ 497.4

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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