Debt Obligations - Information on Borrowings under Current and Prior Credit Facility and Applicable Interest Rates (Detail) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
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| Line of Credit Facility [Abstract] | ||
| Maximum amount outstanding under the credit facility during the period | $ 490,995 | $ 518,607 |
| Average daily amount outstanding under the credit facility | $ 409,481 | $ 472,029 |
| Weighted-average interest rate | 2.61% | 2.00% |
| X | ||||||||||
- Definition Weighted average interest rate of debt outstanding. No definition available.
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- References No definition available.
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| X | ||||||||||
- Definition Average amount borrowed under the credit facility during the period. No definition available.
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| X | ||||||||||
- Definition Maximum amount borrowed under the credit facility at any time during the period. No definition available.
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