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Current, Deferred and Equity Income Taxes (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Taxes [Line Items] |  |  |
Current | $ 8,290 | $ 4,354 | $ 3,624
Deferred | (5,287) | 465 | (24,729)
Equity | 1,737 |  |
Total | $ 4,740 | $ 4,819 | $ (21,105)

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