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INCOME TAXES - Reconciliation of statutory federal income tax rate to effective income tax rate (Details) - case | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Aug. 08, 2021 | Nov. 29, 2018
INCOME TAXES |  |  |  |  |
Statutory U.S. federal income tax rate | 21.00% | 21.00% | 21.00% |  |
Impact of federal, state and local tax law & rate changes, net | 1.90% | (0.20%) |  |  |
State taxes, net of federal benefit | 4.30% | 4.20% | 5.00% |  |
Uncertain tax positions | 3.20% | 2.90% | 2.60% |  |
Deduction for Foreign-Derived Intangible Income | (0.60%) | (1.10%) | (1.20%) |  |
Valuation allowance |  | 0.80% |  |  |
Other, net | 0.20% | 1.50% | (1.40%) |  |
Effective income tax rate | 30.00% | 29.10% | 26.00% |  |
Number of cases before the U.S. Tax Court |  |  |  | 2 | 3

X
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