Supplemental Balance Sheet Information Related to Operating Leases (Detail) $ in Thousands	Jun. 30, 2019 USD ($)
Leases [Abstract]
Operating lease right-of-use assets in other assets	$ 13,234
Operating lease liabilities in other current liabilities	2,379
Operating lease liabilities in other long-term liabilities	11,286
Total operating lease liabilities	$ 13,665