v3.26.1
Revenues
 3 Months Ended
Mar. 31, 2026
Revenue from Contract with Customer [Abstract]  
Revenues Revenues
Most of Registrant’s revenues are derived from contracts with customers, including tariff-based revenues from its regulated utilities at GSWC and BVES. ASUS’s initial firm fixed-price long-term contracts with the U.S. government are considered service concession arrangements under ASC 853, Service Concession Arrangements. ASUS’s military base contracts consist primarily of 50-year contracts and one 15-year contract with the U.S. government. Accordingly, the services under these contracts are accounted for under Topic 606—Revenue from Contracts with Customers, and the water and/or wastewater systems are not recorded as Property, Plant and Equipment on Registrant’s balance sheets.
Although GSWC and BVES have a diversified customer base of residential, commercial, industrial, and other customers, revenues derived from residential and commercial customers generally account for approximately 90% of total water and electric revenues. Most of ASUS’s revenues are derived from the U.S. government.

For the three months ended March 31, 2026 and 2025, disaggregated revenues from contracts with customers by segment were as follows:
Three Months Ended March 31,
(dollars in thousands)20262025
Water:
Tariff-based revenues$111,195 $100,331 
CPUC-approved surcharges (cost-recovery activities)414 805 
Other618 611 
     Water revenues from contracts with customers112,227 101,747 
M-WRAM under/(over)-collection (alternative revenue programs)883 256 
    Total water revenues 113,110 102,003 
Electric:
Tariff-based revenues17,736 13,733 
CPUC-approved surcharges (cost-recovery activities)1,659 43 
     Electric revenues from contracts with customers19,395 13,776 
BRRBA under/(over)-collection (alternative revenue program)
(738)1,226 
     Total electric revenues 18,657 15,002 
Contracted services:
Water 23,178 16,612 
Wastewater14,246 14,396 
 Contracted services revenues from contracts with customers
37,424 31,008 
     Total AWR revenues$169,191 $148,013 
The opening and closing balances of the receivable from the U.S. government, contract assets, and contract liabilities from contracts with customers, which are related entirely to ASUS, are as follows:    
(dollars in thousands)March 31, 2026December 31, 2025
Unbilled receivables$8,919 $5,048 
Receivable from the U.S. government$57,428 $74,060 
Contract assets$32,915 $31,507 
Contract liabilities$11,618 $11,735 
Unbilled receivables and Receivable from the U.S. government represent receivables where the right to payment is conditional only by the passage of time.
Contract Assets - Contract assets are assets of ASUS and its subsidiaries and consist of unbilled revenues recognized from work-in-progress construction projects, where the right to payment is conditional on something other than the passage of time. The classification of this asset as current or noncurrent is based on the timing of when ASUS expects to bill these amounts.
Contract Liabilities - Contract liabilities are liabilities of ASUS and consist of billings in excess of revenue recognized. The classification of this liability as current or noncurrent is based on the timing of when ASUS expects to recognize revenue. Contracted services revenues recognized during the three months ended March 31, 2026, which were included in contract liabilities at the beginning of the period were $6.2 million. Contracted services revenues recognized during the three months ended March 31, 2026 from performance obligations satisfied in previous periods were not material.
As of March 31, 2026, AWR’s aggregate remaining performance obligations, which are entirely from the contracted services segment, were $4.2 billion. ASUS expects to recognize revenue on these remaining performance obligations over the remaining term of each of the contracts, which range from 13 to 48 years. Each of the 50-year contracts with the U.S. government is subject to termination, in whole or in part, prior to the end of its contract term for convenience of the U.S. government. The 50-year contracts provide that, in such an event, the U.S. government would be entitled to repurchase the utility systems, and ASUS would be entitled to recover any unrecovered investments under the contracts’ termination and other provisions at the time of termination.