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Equipment Lease Obligations - Schedule of Future Minimum Lease Payments for Equipment Lease Obligations (Parenthetical) (Detail)	Sep. 30, 2017
Minimum
Capital Leased Assets [Line Items]
Capital leases future minimum payments interest rate	0.00%
Maximum
Capital Leased Assets [Line Items]
Capital leases future minimum payments interest rate	4.95%

X

- Definition

Capital leases future minimum payments interest rate.

+ References

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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