Quarterly report pursuant to Section 13 or 15(d)

Unaudited Interim Condensed Consolidated Statements of Cash Flows Supplemental Information - Summary of Asset Write-downs and Other Charges (Detail)

v3.21.2
Unaudited Interim Condensed Consolidated Statements of Cash Flows Supplemental Information - Summary of Asset Write-downs and Other Charges (Detail) - Write-downs and other charges - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Asset Write Downs And Other Charges [Line Items]    
Asset write-downs and other charges $ 186 $ 687
Accounts receivable provisions    
Asset Write Downs And Other Charges [Line Items]    
Asset write-downs and other charges (72) 329
Fixed asset    
Asset Write Downs And Other Charges [Line Items]    
Asset write-downs and other charges $ 258 $ 358