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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Disaggregation of revenue | The following table disaggregates the Company’s operating revenue by source for the years ended December 31, 2020, 2019, and 2018:
| 2020 |  | 2019 |  | 2018
Revenue from contracts with customers | $ | 697,577 |  |  | $ | 664,358 |  |  | $ | 674,736 |
Regulatory balancing account revenue | 96,730 |  |  | 50,199 |  |  | 23,460 |
Total operating revenue | $ | 794,307 |  |  | $ | 714,557 |  |  | $ | 698,196 |
In the following table, revenue from contracts with customers is disaggregated by class of customers for the years ended December 31, 2020, 2019, and 2018:
| 2020 |  | 2019 |  | 2018
Residential | $ | 486,065 |  |  | $ | 446,323 |  |  | $ | 450,062 |
Business | 125,819 |  |  | 129,223 |  |  | 130,041 |
Industrial | 29,088 |  |  | 31,857 |  |  | 34,236 |
Public authorities | 35,776 |  |  | 33,862 |  |  | 34,511 |
Other* | 20,829 |  |  | 23,093 |  |  | 25,886 |
Total revenue from contracts with customers | $ | 697,577 |  |  | $ | 664,358 |  |  | $ | 674,736 |
_______________________________________________________________________________ * Other includes accrued unbilled revenue The following tables disaggregate the Company’s non-regulated revenue by source for the years ended December 31, 2020, 2019, and 2018:
| 2020 |  | 2019 |  | 2018
Operating and maintenance revenue | $ | 11,481 |  |  | $ | 12,655 |  |  | $ | 10,392 |
Other non-regulated revenue | 3,043 |  |  | 4,271 |  |  | 5,413 |
Non-regulated revenue from contracts with customers | $ | 14,524 |  |  | $ | 16,926 |  |  | $ | 15,805 |
Lease revenue | 2,398 |  |  | 2,279 |  |  | 2,467 |
Total non-regulated revenue | $ | 16,922 |  |  | $ | 19,205 |  |  | $ | 18,272 |
Schedule of lease payments to be received | Maturities of lease payments to be received are as follows:
Year Ending December 31, | Operating Leases
2021 | $ | 2,779 |
2022 | 1,916 |
2023 | 1,438 |
2024 | 1,152 |
2025 | 688 |
Thereafter | 319 |
Schedule of activities in the allowance for doubtful accounts | The following table presents the activity in the allowance for credit losses for the period ended December 31, 2020, 2019 and 2018.
| 2020 |  | 2019 |  | 2018
Beginning Balance | $ | 771 |  |  | $ | 757 |  |  | 773 |
Provision for credit loss expense | 5,716 |  |  | 1,664 |  |  | $ | 1,703 |
Write-offs | (1,730) |  |  | (2,156) |  |  | $ | (2,210) |
Recoveries | 489 |  |  | 506 |  |  | $ | 491 |
Total ending allowance balance | $ | 5,246 |  |  | $ | 771 |  |  | $ | 757 |
Other Receivables As of December 31, 2020 and 2019, other receivables were:
| 2020 |  | 2019
Accounts receivables from developers | 9,077 |  |  | 6,299 |
Income tax receivables | 5,561 |  |  | 764 |
Other | 5,693 |  |  | 7,124 |
Total other receivables | $ | 20,331 |  |  | $ | 14,187 |
Schedule of depreciable plant and equipment | The following table represents depreciable plant and equipment as of December 31:
| 2020 |  | 2019
Equipment | $ | 785,578 |  |  | $ | 726,475 |
Office buildings and other structures | 305,791 |  |  | 281,462 |
Transmission and distribution plant | 2,554,401 |  |  | 2,227,478 |
Total | $ | 3,645,770 |  |  | $ | 3,235,415 |
Schedule of estimated useful lives of depreciable plant and equipment | Depreciation of utility plant is computed on a straight-line basis over the assets' estimated useful lives including cost of removal of certain assets as follows:
| Useful Lives
Equipment | 5 to 50 years
Transmission and distribution plant | 40 to 65 years
Office Buildings and other structures | 50 years
Schedule of allowance for funds used during construction | The amount of AFUDC related to equity funds and to borrowed funds for 2020, 2019, and 2018 are shown in the table below:
| 2020 |  | 2019 |  | 2018
Allowance for equity funds used during construction | $ | 4,976 |  |  | $ | 6,685 |  |  | $ | 3,954 |
Allowance for borrowed funds used during construction | 3,185 |  |  | 3,670 |  |  | 2,063 |
Total | $ | 8,161 |  |  | $ | 10,355 |  |  | $ | 6,017 |
Schedule of cash, cash equivalents and restricted cash | The following table provides a reconciliation of cash, cash equivalents, and restricted cash within the Consolidated Balance Sheets that total to the amounts shown on the Consolidated Statements of Cash Flows:
| December 31, 2020 |  | December 31, 2019
Cash and cash equivalents | 44,555 |  |  | 42,653 |
Restricted cash (included in "taxes, prepaid expenses, and other assets") | 574 |  |  | 645 |
Total cash, cash equivalents, and restricted cash shown in the statements of cash flows | $ | 45,129 |  |  | $ | 43,298 |
Schedule Of Customer Advances For Construction, Refunds Due | Estimated refunds of advances are shown in the table below.
Year Ending December 31, | Refunds of Advances
2021 | $ | 8,935 |
2022 | 8,841 |
2023 | 8,791 |
2024 | 8,689 |
2025 | 8,434 |
Thereafter | 151,935 |
Total refunds | $ | 195,625 |
Schedule of SARs which were dilutive |
| 2020 |  | 2019 |  | 2018
| (In thousands, except per share data)
Net income available to common stockholders | $ | 96,831 |  |  | $ | 63,116 |  |  | $ | 65,584 |
Weighted average common shares, basic | 49,274 |  |  | 48,168 |  |  | 48,060 |
Weighted average common shares, dilutive | 49,274 |  |  | 48,168 |  |  | 48,060 |
Earnings per share—basic | $ | 1.97 |  |  | $ | 1.31 |  |  | $ | 1.36 |
Earnings per share—diluted | $ | 1.97 |  |  | $ | 1.31 |  |  | $ | 1.36 |

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