XML 48 R32.htm IDEA: XBRL DOCUMENT v3.25.1
Regulatory Matters - Schedule of Regulatory Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2025
Dec. 31, 2024
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets $ 59,592 $ 54,679
GSWC    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 17,221 18,173
GSWC | Deferred Income Tax Charge    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets (63,610) (63,682)
GSWC | Pension Costs and Other Postretirement Benefit Costs    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets (24,115) (25,179)
GSWC | Other regulatory liabilities    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets (927) (608)
BVES    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 42,371 36,506
BVES | Other regulatory liabilities    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets (5,404) (5,628)
2025 general rate case memorandum accounts (unbilled revenue) | GSWC    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 4,416 0
2022/2023 general rate case memorandum accounts (unbilled revenue) | GSWC    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 34,494 37,711
Water revenue adjustment mechanism, net of modified cost balancing account | GSWC    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 23,421 29,738
Asset retirement obligations | GSWC    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 7,660 7,501
Flowed-through deferred income taxes, net | GSWC    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 13,909 12,506
Low income rate assistance balancing accounts | GSWC    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 9,835 8,834
Other regulatory assets | GSWC    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 12,138 11,352
Other regulatory assets | BVES    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 9,890 8,853
Derivative instrument memorandum account (Note 5) | BVES    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 13,094 8,823
2023/2024 General Rate Case Memorandum accounts ( unbilled revenue) | BVES    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets 10,036 9,777
Wildfire mitigation and other fire prevention related costs memorandum accounts | BVES    
Schedule of Regulatory Assets and Liabilities [Line Items]    
Net regulatory Assets $ 14,755 $ 14,681