Fair Value Measurements - Financial Assets and Liabilities Not Measured at Fair Value (Parenthetical) (Detail) - Variable Interest Entity, Primary Beneficiary $ in Millions	Mar. 31, 2016 USD ($)
Fair Value Balance Sheet Grouping Financial Statement Captions [Line Items]
Installment loans and RPAs, net	$ 138.3
Restricted cash	$ 13.7

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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