Leases - Schedule of Supplemental Information Related to Operating Leases (Detail) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets
Operating lease ROU assets	$ 156,094	$ 165,969
Operating lease, right-of-use asset [extensible list]	Other assets	Other assets
Liabilities
Operating lease liabilities	$ 183,687	$ 190,207
Operating lease, liability [extensible list]	Accounts payable, accrued and other liabilities	Accounts payable, accrued and other liabilities