Leases - Schedule of Future Minimum Rental Payments Pursuant to Capital and Operating Leases (Parenthetical) (Detail) |
Sep. 30, 2017 |
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| Leases [Abstract] | |
| Capital lease interest rate | 3.50% |
| X | ||||||||||
- Definition The percentage points added to the reference rate to compute the variable rate on the lessee's capital lease. No definition available.
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| X | ||||||||||
- References No definition available.
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