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IMMATERIAL RESTATEMENT OF PRIOR PERIOD FINANCIAL STATEMENTS (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | --- | ---
Capitalization: |  |  |  |
Retained earnings | $ 556,698 | $ 514,873 | $ 461,146 | $ 406,083
Total equity | 1,322,394 | 1,171,917 | 910,281 | 768,843
Total capitalization | 2,374,881 | 2,227,711 |  |
Current liabilities: |  |  |  |
Regulatory balancing accounts | 12,240 | 32,908 |  |
Total current liabilities | 294,650 | 271,937 |  |
Deferred income taxes | $ 330,251 | 294,647 |  |
As Previously Reported |  |  |  |
Capitalization: |  |  |  |
Retained earnings |  | 525,936 | 472,209 | 417,146
Total equity |  | 1,182,980 | 921,344 | 779,906
Total capitalization |  | 2,238,774 |  |
Current liabilities: |  |  |  |
Regulatory balancing accounts |  | 17,547 |  |
Total current liabilities |  | 256,576 |  |
Deferred income taxes |  | 298,945 |  |
Corrections |  |  |  |
Capitalization: |  |  |  |
Retained earnings |  | (11,063) | (11,063) | (11,063)
Total equity |  | (11,063) | $ (11,063) | $ (11,063)
Total capitalization |  | (11,063) |  |
Current liabilities: |  |  |  |
Regulatory balancing accounts |  | 15,361 |  |
Total current liabilities |  | 15,361 |  |
Deferred income taxes |  | $ (4,298) |  |

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