Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Summary of Fair Value and Carrying Value of Financial Assets and Liabilities (Parenthetical) (Detail)

v3.2.0.727
Fair Value Measurements - Summary of Fair Value and Carrying Value of Financial Assets and Liabilities (Parenthetical) (Detail) - USD ($)
Jun. 30, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortized costs $ 29,000,000 $ 27,000,000
Allowance for loan losses on financing receivables 0 1,000,000
Financing Receivable [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Allowance for loan losses on financing receivables $ 0 $ 1,200,000