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OTHER INCOME AND EXPENSES (Tables) | 12 Months Ended
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Dec. 31, 2020
Other Income and Expenses [Abstract] |
Schedule of various non-regulated activities | The Company conducts various non-regulated activities as reflected in the table below:
| 2020 |  | 2019 |  | 2018
| Revenue |  | Expense |  | Revenue |  | Expense |  | Revenue |  | Expense
Operating and maintenance | $ | 11,481 |  |  | $ | 13,551 |  |  | $ | 12,655 |  |  | $ | 13,791 |  |  | $ | 10,392 |  |  | $ | 11,895 |
Leases | 2,398 |  |  | 48 |  |  | 2,279 |  |  | 35 |  |  | 2,467 |  |  | 135 |
Design and construction | 802 |  |  | 704 |  |  | 1,745 |  |  | 1,612 |  |  | 1,273 |  |  | 1,202 |
Meter reading and billing | 458 |  |  | 109 |  |  | 412 |  |  | 163 |  |  | 391 |  |  | 157 |
Interest income | 52 |  |  | — |  |  | 92 |  |  | — |  |  | 133 |  |  | — |
Change in value of life insurance contracts (gain) loss | — |  |  | (4,293) |  |  | — |  |  | (5,104) |  |  | — |  |  | 2,340 |
Other non-regulated income and expenses | 1,731 |  |  | 4,181 |  |  | 2,022 |  |  | 3,372 |  |  | 3,616 |  |  | 7,058 |
Total | $ | 16,922 |  |  | $ | 14,300 |  |  | $ | 19,205 |  |  | $ | 13,869 |  |  | $ | 18,272 |  |  | $ | 22,787 |

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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