Leases - Schedule of Components of Lease Costs, Lease Term and Discount Rate (Detail) $ in Thousands	3 Months Ended
Mar. 31, 2019 USD ($)
Finance lease cost
Amortization of right-of-use assets	$ 628
Interest	189
Operating lease cost	1,090
Total lease cost	$ 1,907
Operating leases	2 years 8 months 12 days
Finance leases	6 months
Operating leases	6.00%
Finance leases	5.70%

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- Definition

Amount of interest expense on finance lease liability.

+ References

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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Weighted average discount rate for finance lease calculated at point in time.

+ References

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- Definition

Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of lease cost recognized by lessee for lease contract.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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Weighted average discount rate for operating lease calculated at point in time.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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