Supplemental Balance Sheet Information Related to Operating Leases (Detail) $ in Thousands	Dec. 31, 2019 USD ($)
Leases [Abstract]
Operating lease right-of-use assets in other assets	$ 11,455
Operating lease liabilities in other current liabilities	3,115
Operating lease liabilities in other long-term liabilities	9,506
Total operating lease liabilities	$ 12,621