Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Schedule of Residual Interests Securitized Receivables and Derivatives Carried at Fair Value (Parenthetical) (Detail)

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Fair Value Measurements - Schedule of Residual Interests Securitized Receivables and Derivatives Carried at Fair Value (Parenthetical) (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]  
Net fair value collateral impaired loan $ 0.8
Allowance for loan losses on financing receivables $ 11.0