Leases - Schedule of Maturity Analysis of Lease Liabilities (Parenthetical) (Detail) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating leases with options to extend lease terms that are reasonably certain of being exercised	$ 0
Legally binding minimum lease payments for leases signed but not yet commenced	300,000
Operating leases, current portion	21,200,000	$ 20,900,000
Finance leases, current portion	$ 11,900,000	$ 12,400,000