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INCOME TAXES - Income Tax Reconciliation (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Reconciliation from the tax computed at statutory income tax rates to the Company's income tax expense |  |  |  |  |  |  |  |  |  |  |
Tax computed at statutory U.S. federal income tax rates |  |  |  |  |  |  |  |  | $ 20 | $ 1,275 | $ 11,286
Non-controlling interest |  |  |  |  |  |  |  |  | (851) | (648) | (1,114)
Foreign tax rate differential |  |  |  |  |  |  |  |  | 1,866 | (1,769) | (2,662)
Over (under) provided in prior periods |  |  |  |  |  |  |  |  | (520) | (244) | (4,683)
Nondeductible expenses |  |  |  |  |  |  |  |  | 1,504 | 3,781 | 1,610
Benefit Attributable CARES Act |  |  |  |  |  |  |  |  | (3,064) |  |
Capitalized transactions costs |  |  |  |  |  |  |  |  |  | 19 | 62
Change in tax reserves |  |  |  |  |  |  |  |  | 2,148 | 3,883 | 10,657
State Taxes, net of federal benefit |  |  |  |  |  |  |  |  | (409) | (429) | 1,674
Change in valuation allowance |  |  |  |  |  |  |  |  | 33 | (35) | 1,539
Investment Tax Credit |  |  |  |  |  |  |  |  | 84 | (1,215) |
Refund Claim for Domestic Production Deduction |  |  |  |  |  |  |  |  |  |  | 235
Tax Cuts and Jobs Act of 2017 |  |  |  |  |  |  |  |  |  |  | (148)
Capital loss |  |  |  |  |  |  |  |  |  |  | 15
Deferred income tax revaluation |  |  |  |  |  |  |  |  | (10) | (513) |
Other, net |  |  |  |  |  |  |  |  |  |  | 399
Total income tax expense (benefit) | $ 1,858 | $ 92 | $ (2,258) | $ 1,109 | $ 1,332 | $ 1,834 | $ (274) | $ 1,213 | $ 801 | $ 4,105 | $ 18,870

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