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Condensed Consolidating Financial Statements - Condensed Consolidating Statement of (Loss) Income (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Condensed Consolidating Financial Statements |  |  |  |
Operating revenue | $ 304,108 | $ 232,537 | $ 605,155 | $ 537,679
Operations: |  |  |  |
Water production costs | 85,344 | 80,568 | 210,462 | 190,795
Administrative and general | 29,208 | 26,779 | 85,827 | 81,310
Other operations | 29,746 | 24,550 | 69,618 | 64,913
Maintenance | 7,129 | 7,065 | 20,924 | 19,212
Depreciation and amortization | 24,699 | 22,273 | 73,733 | 66,967
Income tax (benefit) expense | 13,804 | 12,194 | 10,489 | 13,524
Property and other taxes | 8,116 | 7,541 | 22,470 | 21,902
Total operating (income) expenses | 198,046 | 180,970 | 493,523 | 458,623
Net operating income | 106,062 | 51,567 | 111,632 | 79,056
Other income and expenses: |  |  |  |
Non-regulated revenue | 3,934 | 4,118 | 11,969 | 14,149
Non-regulated expenses | (2,865) | (4,351) | (11,811) | (10,470)
Other components of net periodic benefit cost | (1,008) | (1,857) | (3,770) | (4,308)
Allowance for equity funds used during construction | 973 | 1,868 | 4,292 | 5,087
Income tax (expense) benefit on other income and expenses | (245) | 330 | (152) | (985)
Net other income (loss) | 789 | 108 | 528 | 3,473
Interest expense: |  |  |  |
Interest expense | 11,162 | 10,279 | 33,573 | 33,532
Allowance for borrowed funds used during construction | (671) | (1,028) | (2,747) | (2,783)
Net interest expense | 10,491 | 9,251 | 30,826 | 30,749
Equity earnings of subsidiaries | 0 | 0 | 0 | 0
Net income | 96,360 | 42,424 | 81,334 | 51,780
Consolidating Adjustments |  |  |  |
Condensed Consolidating Financial Statements |  |  |  |
Operating revenue | 0 | 0 | 0 | 0
Operations: |  |  |  |
Water production costs | 0 | 0 | 0 | 0
Administrative and general | 0 | 0 | 0 | 0
Other operations | (145) | (147) | (437) | (437)
Maintenance | 0 | 0 | 0 | 0
Depreciation and amortization | (20) | (21) | (59) | (62)
Income tax (benefit) expense | 200 | 215 | 600 | 651
Property and other taxes | 0 | 0 | 0 | 0
Total operating (income) expenses | 35 | 47 | 104 | 152
Net operating income | (35) | (47) | (104) | (152)
Other income and expenses: |  |  |  |
Non-regulated revenue | (695) | (745) | (2,085) | (2,263)
Non-regulated expenses | 0 | 0 | 0 | 0
Other components of net periodic benefit cost | 0 | 0 | 0 | 0
Allowance for equity funds used during construction | 0 | 0 | 0 | 0
Income tax (expense) benefit on other income and expenses | 194 | 208 | 583 | 633
Net other income (loss) | (501) | (537) | (1,502) | (1,630)
Interest expense: |  |  |  |
Interest expense | (549) | (599) | (1,648) | (1,826)
Allowance for borrowed funds used during construction | 0 | 0 | 0 | 0
Net interest expense | (549) | (599) | (1,648) | (1,826)
Equity earnings of subsidiaries | (96,266) | (42,334) | (81,036) | (51,523)
Net income | (96,253) | (42,319) | (80,994) | (51,479)
Parent Company | Reportable Legal Entities |  |  |  |
Condensed Consolidating Financial Statements |  |  |  |
Operating revenue | 0 | 0 | 0 | 0
Operations: |  |  |  |
Water production costs | 0 | 0 | 0 | 0
Administrative and general | 0 | 0 | 0 | 23
Other operations | 0 | 0 | 0 | 0
Maintenance | 0 | 0 | 0 | 0
Depreciation and amortization | 23 | 23 | 70 | 70
Income tax (benefit) expense | (113) | (132) | (341) | (411)
Property and other taxes | 0 | 0 | 0 | 0
Total operating (income) expenses | (90) | (109) | (271) | (318)
Net operating income | 90 | 109 | 271 | 318
Other income and expenses: |  |  |  |
Non-regulated revenue | 549 | 599 | 1,648 | 1,826
Non-regulated expenses | 0 | 0 | 0 | 0
Other components of net periodic benefit cost | 0 | 0 | 0 | 0
Allowance for equity funds used during construction | 0 | 0 | 0 | 0
Income tax (expense) benefit on other income and expenses | (152) | (168) | (460) | (511)
Net other income (loss) | 397 | 431 | 1,188 | 1,315
Interest expense: |  |  |  |
Interest expense | 393 | 450 | 1,161 | 1,376
Allowance for borrowed funds used during construction | 0 | 0 | 0 | 0
Net interest expense | 393 | 450 | 1,161 | 1,376
Equity earnings of subsidiaries | 96,266 | 42,334 | 81,036 | 51,523
Net income | 96,360 | 42,424 | 81,334 | 51,780
Cal Water | Reportable Legal Entities |  |  |  |
Condensed Consolidating Financial Statements |  |  |  |
Operating revenue | 287,820 | 219,261 | 567,494 | 502,785
Operations: |  |  |  |
Water production costs | 82,829 | 78,048 | 203,485 | 183,617
Administrative and general | 25,802 | 24,498 | 77,025 | 73,908
Other operations | 27,312 | 22,872 | 63,427 | 59,851
Maintenance | 6,872 | 6,823 | 19,980 | 18,469
Depreciation and amortization | 22,984 | 20,770 | 68,886 | 62,471
Income tax (benefit) expense | 12,787 | 11,332 | 9,054 | 12,019
Property and other taxes | 6,948 | 6,620 | 19,618 | 19,431
Total operating (income) expenses | 185,534 | 170,963 | 461,475 | 429,766
Net operating income | 102,286 | 48,298 | 106,019 | 73,019
Other income and expenses: |  |  |  |
Non-regulated revenue | 3,588 | 3,865 | 11,102 | 13,374
Non-regulated expenses | (2,321) | (3,907) | (10,864) | (9,610)
Other components of net periodic benefit cost | (1,016) | (1,784) | (3,717) | (4,177)
Allowance for equity funds used during construction | 973 | 1,868 | 4,292 | 5,087
Income tax (expense) benefit on other income and expenses | (289) | 268 | (179) | (1,028)
Net other income (loss) | 935 | 310 | 634 | 3,646
Interest expense: |  |  |  |
Interest expense | 10,762 | 9,820 | 32,402 | 32,141
Allowance for borrowed funds used during construction | (631) | (954) | (2,604) | (2,592)
Net interest expense | 10,131 | 8,866 | 29,798 | 29,549
Equity earnings of subsidiaries | 0 | 0 | 0 | 0
Net income | 93,090 | 39,742 | 76,855 | 47,116
All Other Subsidiaries | Reportable Legal Entities |  |  |  |
Condensed Consolidating Financial Statements |  |  |  |
Operating revenue | 16,288 | 13,276 | 37,661 | 34,894
Operations: |  |  |  |
Water production costs | 2,515 | 2,520 | 6,977 | 7,178
Administrative and general | 3,406 | 2,281 | 8,802 | 7,379
Other operations | 2,579 | 1,825 | 6,628 | 5,499
Maintenance | 257 | 242 | 944 | 743
Depreciation and amortization | 1,712 | 1,501 | 4,836 | 4,488
Income tax (benefit) expense | 930 | 779 | 1,176 | 1,265
Property and other taxes | 1,168 | 921 | 2,852 | 2,471
Total operating (income) expenses | 12,567 | 10,069 | 32,215 | 29,023
Net operating income | 3,721 | 3,207 | 5,446 | 5,871
Other income and expenses: |  |  |  |
Non-regulated revenue | 492 | 399 | 1,304 | 1,212
Non-regulated expenses | (544) | (444) | (947) | (860)
Other components of net periodic benefit cost | 8 | (73) | (53) | (131)
Allowance for equity funds used during construction | 0 | 0 | 0 | 0
Income tax (expense) benefit on other income and expenses | 2 | 22 | (96) | (79)
Net other income (loss) | (42) | (96) | 208 | 142
Interest expense: |  |  |  |
Interest expense | 556 | 608 | 1,658 | 1,841
Allowance for borrowed funds used during construction | (40) | (74) | (143) | (191)
Net interest expense | 516 | 534 | 1,515 | 1,650
Equity earnings of subsidiaries | 0 | 0 | 0 | 0
Net income | $ 3,163 | $ 2,577 | $ 4,139 | $ 4,363

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