Annual report pursuant to Section 13 and 15(d)

Foreign Currency Translation - Additional Information (Detail)

v3.10.0.1
Foreign Currency Translation - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Foreign Currency Translation [Line Items]    
Accumulated other comprehensive income (loss) $ 319,007 $ 253,282
Cumulative foreign currency losses $ 315,300 253,565
Cumulative inflation rate 100.00%  
Cumulative inflation period 3 years  
Reclassification of cumulative foreign currency translation adjustments $ 518 (1,551)
Canada    
Foreign Currency Translation [Line Items]    
Reclassification of cumulative foreign currency translation adjustments   $ 1,551