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Taxes on Income (Tables) | 12 Months Ended
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Dec. 31, 2024
Income Tax Disclosure [Abstract] |
Schedule of significant components of the deferred tax assets and liabilities from continuing operations | The significant components of the deferred tax assets and liabilities as reflected in the balance sheets at December 31, 2024 and 2023 are:
|  | AWR |  | GSWC
|  | December 31, |  | December 31,
(dollars in thousands) |  | 2024 |  | 2023 |  | 2024 |  | 2023
Deferred tax assets: |  |  |  |  |  |  |  |
Regulatory-liability-related (1) |  | $ | 28,851 |  |  | $ | 32,042 |  |  | $ | 27,171 |  |  | $ | 30,407 |
Contributions and advances |  | 6,768 |  |  | 6,660 |  |  | 7,103 |  |  | 6,981 |
Other |  | 5,801 |  |  | 5,924 |  |  | 5,632 |  |  | 6,041 |
Total deferred tax assets |  | $ | 41,420 |  |  | $ | 44,626 |  |  | $ | 39,906 |  |  | $ | 43,429 |
Deferred tax liabilities: |  |  |  |  |  |  |  |
Fixed assets |  | $ | (169,666) |  |  | $ | (161,820) |  |  | $ | (162,366) |  |  | $ | (155,131) |
Regulatory-asset-related: depreciation and other |  | (43,149) |  |  | (36,337) |  |  | (39,635) |  |  | (33,242) |
Balancing and memorandum accounts (non-flowed-through) |  | (8,778) |  |  | (8,046) |  |  | (4,315) |  |  | (2,514) |
Total deferred tax liabilities |  | (221,593) |  |  | (206,203) |  |  | (206,316) |  |  | (190,887) |
Accumulated deferred income taxes, net |  | $ | (180,173) |  |  | $ | (161,577) |  |  | $ | (166,410) |  |  | $ | (147,458) |
(1) Primarily represents the gross-up portion of the deferred income tax (on the excess-deferred-tax regulatory liability) brought about by the Tax Cuts and Jobs Act's reduction of the federal income tax rate.
Schedule of current and deferred components of income tax expense from continuing operations | The current and deferred components of income tax expense are as follows:
|  | AWR
|  | Year Ended December 31,
(dollars in thousands) |  | 2024 |  | 2023 |  | 2022
Current |  |  |  |  |  |
Federal |  | $ | 19,680 |  |  | $ | 26,327 |  |  | $ | 14,845 |
State |  | 8,451 |  |  | 10,489 |  |  | 6,016 |
Total current tax expense |  | $ | 28,131 |  |  | $ | 36,816 |  |  | $ | 20,861 |
Deferred |  |  |  |  |  |
Federal |  | $ | 1,656 |  |  | $ | 4,157 |  |  | $ | 2,991 |
State |  | 386 |  |  | 626 |  |  | (188) |
Total deferred tax (benefit) expense |  | 2,042 |  |  | 4,783 |  |  | 2,803 |
Total income tax expense |  | $ | 30,173 |  |  | $ | 41,599 |  |  | $ | 23,664 |
|  | GSWC
|  | Year Ended December 31,
(dollars in thousands) |  | 2024 |  | 2023 |  | 2022
Current |  |  |  |  |  |
Federal |  | $ | 13,570 |  |  | $ | 22,564 |  |  | $ | 10,582 |
State |  | 6,551 |  |  | 10,176 |  |  | 4,909 |
Total current tax expense |  | $ | 20,121 |  |  | $ | 32,740 |  |  | $ | 15,491 |
Deferred |  |  |  |  |  |
Federal |  | $ | 1,362 |  |  | $ | 2,867 |  |  | $ | 1,507 |
State |  | 1,386 |  |  | 82 |  |  | (652) |
Total deferred tax (benefit) expense |  | 2,748 |  |  | 2,949 |  |  | 855 |
Total income tax expense |  | $ | 22,869 |  |  | $ | 35,689 |  |  | $ | 16,346 |
Schedule of reconciliations of the effective tax rates to the federal statutory rate | The reconciliations of the effective tax rates (“ETR”) to the federal statutory rate are as follows:
|  | AWR
|  | Year Ended December 31,
(dollars in thousands) |  | 2024 |  | 2023 |  | 2022
Federal taxes on pretax income at statutory rate |  | $ | 31,383 |  |  | $ | 34,969 |  |  | $ | 21,433 |
Increase (decrease) in taxes resulting from: |  |  |  |  |  |
State income tax, net of federal benefit |  | 6,508 |  |  | 9,785 |  |  | 4,335 |
Excess deferred tax amortization |  | (1,467) |  |  | (1,648) |  |  | (1,311) |
Flow-through on fixed assets |  | 1,075 |  |  | 1,067 |  |  | 1,076 |
Flow-through on removal costs |  | (3,096) |  |  | (2,255) |  |  | (1,802) |
Investment tax credit |  | (69) |  |  | (71) |  |  | (71) |
Excess deferred tax adjustment - change in estimate |  | (5,015) |  |  | — |  |  | — |
Other – net |  | 854 |  |  | (248) |  |  | 4 |
Total income tax expense from operations |  | $ | 30,173 |  |  | $ | 41,599 |  |  | $ | 23,664 |
Pretax income from operations |  | $ | 149,441 |  |  | $ | 166,520 |  |  | $ | 102,060 |
Effective income tax rate |  | 20.2 | % |  | 25.0 | % |  | 23.2 | %
|  | GSWC
|  | Year Ended December 31,
(dollars in thousands) |  | 2024 |  | 2023 |  | 2022
Federal taxes on pretax income at statutory rate |  | $ | 24,640 |  |  | $ | 29,063 |  |  | $ | 14,724 |
Increase (decrease) in taxes resulting from: |  |  |  |  |  |
State income tax, net of federal benefit |  | 5,772 |  |  | 9,169 |  |  | 3,119 |
Excess deferred tax amortization |  | (1,491) |  |  | (1,681) |  |  | (1,130) |
Flow-through on fixed assets |  | 1,058 |  |  | 1,041 |  |  | 1,010 |
Flow-through on removal costs |  | (3,029) |  |  | (2,225) |  |  | (1,715) |
Investment tax credit |  | (69) |  |  | (71) |  |  | (71) |
Excess deferred tax adjustment - change in estimate |  | (5,015) |  |  | — |  |  | — |
Other – net |  | 1,003 |  |  | 393 |  |  | 409 |
Total income tax expense from operations |  | $ | 22,869 |  |  | $ | 35,689 |  |  | $ | 16,346 |
Pretax income from operations |  | $ | 117,332 |  |  | $ | 138,397 |  |  | $ | 70,116 |
Effective income tax rate |  | 19.5 | % |  | 25.8 | % |  | 23.3 | %

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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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