XML 143 R90.htm IDEA: XBRL DOCUMENT v3.21.1
Leases - Schedule of Future Minimum Lease Receivables under Non-cancellable Leases (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Disclosure of finance lease and operating lease by lessor [line items]    
Future minimum lease receivables under non -cancelable leases $ 5,875 $ 9,095
Up to one year [member]    
Disclosure of finance lease and operating lease by lessor [line items]    
Future minimum lease receivables under non -cancelable leases 3,000 3,220
One to five years [member]    
Disclosure of finance lease and operating lease by lessor [line items]    
Future minimum lease receivables under non -cancelable leases $ 2,875 $ 5,875