XML 54 R38.htm IDEA: XBRL DOCUMENT v3.21.1
Leases, Other Commitments, and Contingencies - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Other Commitments [Line Items]    
Restricted cash $ 393 $ 388
Forward purchase noncancelable commitments amount $ 11,700  
Equipment [Member]    
Other Commitments [Line Items]    
Lease term 4 years  
Restricted cash $ 1,000