Registration statement for securities of certain foreign private issuers

Financial Risk Management Objectives and Policies - Additional Information (Detail)

v3.21.2
Financial Risk Management Objectives and Policies - Additional Information (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Currency risk [member]    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Net Impact from fluctuation of operational foreign exchange rates $ 3,861 $ 9,693
Trade Receivables and Contract Assets [member] | Lifetime expected credit losses [member]    
Disclosure of nature and extent of risks arising from financial instruments [line items]    
Allowance account for credit losses of financial assets at beginning of period $ 0 $ 0