Leases - Schedule of Supplemental Balance Sheet Information Related to Lease Liabilities (Detail) $ in Thousands	Jun. 30, 2019 USD ($)
Operating leases:
Operating lease ROU assets	$ 28,878
Current portion of operating lease liabilities	9,412
Operating lease liabilities, net of current portion	20,722
Total operating lease liabilities	$ 30,134
Weighted average remaining lease term	4 years 2 months 12 days
Weighted average discount rate	5.30%
Finance leases:
Property and equipment	$ 2,607
Accumulated depreciation	(1,111)
Property and equipment, net	$ 1,496
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:PropertyPlantAndEquipmentNet
Current portion of long-term debt	$ 447
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtAndCapitalLeaseObligationsCurrent
Long-term debt, net of current portion	$ 851
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:LongTermDebtAndCapitalLeaseObligations
Total finance lease liabilities	$ 1,298
Weighted average remaining lease term	3 years 2 months 12 days
Weighted average discount rate	3.40%