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Leases - Additional information (Detail) - USD ($)
$ in Thousands
1 Months Ended
May 31, 2020
Jan. 31, 2019
Nov. 30, 2018
PCJW Properties [Member]      
Initial lease term of contract   7 years 5 years
Lease rental expense   $ 20 $ 6
Annual lease escalation percentage   5.00% 4.00%
Whalerock Industries Holding Company, LLC [Member]      
Initial lease term of contract 18 months    
Sublease rental expense $ 140