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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Income Tax Disclosure [Abstract]        
Estimated Average Annual Tax Rate     24.00% 24.00%
Recovery of income taxes $ (336) $ 1,266 $ 607 $ 114