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Revenues (Tables)
3 Months Ended
Mar. 31, 2025
Revenue from Contract with Customer [Abstract]  
Disaggregation of Revenue For the three months ended March 31, 2025 and 2024, disaggregated revenues from contracts with customers by segment were as follows:
Three Months Ended March 31,
(dollars in thousands)20252024
Water:
Tariff-based revenues$100,331 $84,661 
CPUC-approved surcharges (cost-recovery activities)805 547 
Other611 582 
     Water revenues from contracts with customers101,747 85,790 
M-WRAM/WRAM under/(over)-collection (alternative revenue programs) (1)
256 4,475 
    Total water revenues 102,003 90,265 
Electric:
Tariff-based revenues13,733 12,673 
CPUC-approved surcharges (cost-recovery activities)43 74 
     Electric revenues from contracts with customers13,776 12,747 
BRRAM under/(over)-collection (alternative revenue program)1,226 (542)
     Total electric revenues 15,002 12,205 
Contracted services:
Water 16,612 21,567 
Wastewater14,396 11,214 
 Contracted services revenues from contracts with customers
31,008 32,781 
     Total AWR revenues$148,013 $135,251 

(1) On January 30, 2025, the CPUC issued a final decision in connection with GSWCs general rate case (“GRC”) that adopted a settlement agreement between GSWC and Cal Advocates and set new rates for 2025 – 2027, with rates retroactive to January 1, 2025. The final decision rejected GSWC’s request for the continuation of the WRAM, and instead orders GSWC to transition to a modified rate adjustment mechanism (a Monterey-style WRAM or “M-WRAM”). The M-WRAM tracks the difference between the revenue based on actual metered sales through a tiered volumetric rate and the revenue that would have been received with the same actual metered sales if a standard quantity rate had been in effect. During the three months ended March 31, 2025, the balances recorded in the new M-WRAM were not material.
Contract with Customer, Asset and Liability
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, 2025December 31, 2024
Unbilled receivables$18,307 $10,910 
Receivable from the U.S. government$71,300 $76,486 
Contract assets$24,548 $21,648 
Contract liabilities$7,747 $5,662