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Leases - Schedule of Lease Costs and Terms for Operating and Finance Lease Obligations (Detail)
Dec. 31, 2020
Dec. 31, 2019
Leases [Abstract]    
Operating leases, weighted-average remaining lease term (years) 3 years 1 month 6 days 3 years 8 months 12 days
Finance leases, weighted-average remaining lease term (years) 1 month 6 days 1 year
Operating leases, weighted-average discount rate 7.30% 7.30%
Finance leases, weighted-average discount rate 8.90% 9.10%