Leases - Summary of Lease Balances (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease ROU assets	$ 70,756	$ 69,296
Short-term operating lease liabilities	$ 12,099
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Accrued expenses and other current liabilities
Non-current operating lease liabilities	$ 71,577	$ 70,323
Total operating lease liabilities	$ 83,676