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INCOME TAXES: - TCJA (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2009
Income Taxes |  |  |  |  |
Percentage of ownership by parent | 88.90% |  |  |  |
U.S. statutory rate (as a percent) | 21.00% | 21.00% | 21.00% | 35.00% |
Maximum percentage of expenses excluding cost of goods sold | 3.00% |  |  |  |
Minimum |  |  |  |  |
Income Taxes |  |  |  |  |
BEAT tax rate (as a percent) |  |  | 5.00% |  |
Minimum | Years 2019 through 2025 |  |  |  |  |
Income Taxes |  |  |  |  |
BEAT tax rate (as a percent) | 10.00% |  |  |  |
Minimum | Years thereafter |  |  |  |  |
Income Taxes |  |  |  |  |
BEAT tax rate (as a percent) | 12.50% |  |  |  |
AMC | Minimum |  |  |  |  |
Income Taxes |  |  |  |  |
Percentage of ownership by parent |  |  |  |  | 80.00%

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- Definition The maximum percentage of expenses excluding cost of goods sold when the company determined that it is not subject to the BEAT tax this year since it is protected by the safe harbor rule that states a Company is not subject to BEAT if related party payments from US to foreign entities. + References No definition available. + Details
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