XML 113 R74.htm IDEA: XBRL DOCUMENT v3.20.1
New Standards And Interpretations - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Disclosure Of Initial Application Of Standards Or Interpretations [Line Items]      
Decrease in cash flows used in operating activities $ 15,140 $ 40,649 $ (16,424)
Increase in cash flows used in financing activities $ (17,949) $ (19,578) $ 7,042
Weighted average discount rate 3.48%    
IFRS 16      
Disclosure Of Initial Application Of Standards Or Interpretations [Line Items]      
Decrease in cash flows used in operating activities $ 354    
Increase in cash flows used in financing activities $ 354