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Summary of Interest Rate Swap Agreement Designated as Hedge Agreements (Detail) - Interest Rate Swap $ in Thousands | 9 Months Ended
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Sep. 30, 2015 USD ($)
Interest Rate Swaps [Line Items] |  |
Nominal Amount | $ 100,000 |
Effective Date | Nov. 01, 2011 |
Pay Rate | 1.715% |
Receive Rate | 1-Month LIBOR |
Expiration Date | Apr. 01, 2016 |
Estimated Total Fair Value at September 30, 2015 | $ 781 | [1]
[1] | Included in accounts payable and accrued expenses on the condensed consolidated balance sheet as of September 30, 2015.

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- Definition Interest Rate Swaps [Line Items] + References No definition available. + Details
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