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Fair Value Measurements - Additional Information (Detail) | 6 Months Ended
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Jun. 30, 2014 Grade
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Weighted-average risk grade of loans underlying interest rate swaps measured at fair value | 11.0
Default on the interest rate swaps, weighted average loss severity percentage | 20.00%

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- Details
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