v3.26.1
Regulatory Matters - Schedule of Utilities Rate Plans (Details) - RECO - USD ($)
$ in Thousands
 1 Months Ended 6 Months Ended
Jul. 31, 2026
Jun. 30, 2026
Routine Storm    
Public Utilities, General Disclosures [Line Items]    
Base rate allowance   $ 2,700
Major Event Storm Costs    
Public Utilities, General Disclosures [Line Items]    
Prorated amount   1,400
Non-Major Storm Costs    
Public Utilities, General Disclosures [Line Items]    
Additional amount covered   1,300
Storm Costs    
Public Utilities, General Disclosures [Line Items]    
Incremental cost deferral threshold   $ 800
Subsequent Event    
Public Utilities, General Disclosures [Line Items]    
Amortization to income of net regulatory (assets) and liabilities $ 6,200  
Amortization period 10 years  
Amortization of regulatory asset $ 8,100  
Average rate base $ 330,300  
Weighted average cost of capital (after-tax) 7.14%  
Authorized return on common equity 9.60%  
Cost of long-term debt 4.82%  
Common equity ratio 48.51%  
Year 1 | Subsequent Event    
Public Utilities, General Disclosures [Line Items]    
Base rate changes $ 15,250  
Amortization to income of net regulatory (assets) and liabilities $ 8,700  
Amortization period 3 years