CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Operating Revenues
Water	$ 464,114	$ 417,410	$ 433,473
Electric	57,217	51,645	41,832
Contracted services	136,742	126,404	120,394
Total operating revenues	658,073	595,459	595,699
Operating Expenses
Water purchased	98,224	74,274	72,864
Power purchased for pumping	14,076	15,025	12,829
Groundwater production assessment	21,489	24,145	20,850
Power purchased for resale	18,110	11,630	13,275
Supply cost balancing accounts	(5,014)	(1,894)	12,118
Other operation	47,041	41,318	40,271
Administrative and general	102,811	100,941	88,273
Depreciation and amortization	47,784	43,647	42,403
Maintenance	21,663	20,255	14,218
Property and other taxes	28,008	27,091	24,046
ASUS construction	60,606	54,544	57,912
Gain on sale of assets	0	0	(100)
Total operating expenses	454,798	410,976	398,959
Operating Income	203,275	184,483	196,740
Other Income and Expenses
Interest Expense	46,776	50,382	42,762
Interest income	5,650	7,874	7,416
Other, net	7,649	7,466	5,126
Total other income and expenses	(33,477)	(35,042)	(30,220)
Income before income taxes	169,798	149,441	166,520
Income tax expense	39,356	30,173	41,599
Net Income	$ 130,442	$ 119,268	$ 124,921
Basic Earnings Per Common Share
Weighted Average Number of Shares Outstanding (in shares)	38,550	37,464	36,976
Basic earnings per Common Share (in USD per share)	$ 3.37	$ 3.17	$ 3.37
Fully Diluted Earnings Per Share
Weighted Average Number of Diluted Shares (in shares)	38,673	37,583	37,077
Diluted earnings per common share (in USD per share)	$ 3.37	$ 3.17	$ 3.36
Dividends Paid Per Common Share (in USD per share)	$ 1.939	$ 1.791	$ 1.655
AWR
Other Income and Expenses
Income before income taxes	$ 128,459	$ 117,332	$ 123,207
Income tax expense	(1,983)	(1,936)	(1,714)
Net Income	$ 130,442	$ 119,268	$ 124,921
Basic Earnings Per Common Share
Weighted Average Number of Shares Outstanding (in shares)	38,550	37,464	36,976
Basic earnings per Common Share (in USD per share)	$ 3.37	$ 3.17	$ 3.37
Fully Diluted Earnings Per Share
Weighted Average Number of Diluted Shares (in shares)	38,673	37,583	37,077
Diluted earnings per common share (in USD per share)	$ 3.37	$ 3.17	$ 3.36
Dividends Paid Per Common Share (in USD per share)	$ 1.939	$ 1.791	$ 1.655
GSWC
Operating Revenues
Water	$ 464,114	$ 417,410	$ 433,473
Total operating revenues	464,114	417,410	433,473
Operating Expenses
Water purchased	98,224	74,274	72,864
Power purchased for pumping	14,076	15,025	12,829
Groundwater production assessment	21,489	24,145	20,850
Supply cost balancing accounts	(96)	(1,621)	13,839
Other operation	32,181	28,349	29,064
Administrative and general	66,637	64,510	59,313
Depreciation and amortization	40,336	37,187	35,886
Maintenance	10,286	9,788	9,906
Property and other taxes	22,617	22,233	19,845
Gain on sale of assets	0	0	(100)
Total operating expenses	305,750	273,890	274,296
Operating Income	158,364	143,520	159,177
Other Income and Expenses
Interest Expense	35,747	38,532	31,283
Interest income	3,245	6,018	5,557
Other, net	6,634	6,326	4,946
Total other income and expenses	(25,868)	(26,188)	(20,780)
Income before income taxes	132,496	117,332	138,397
Income tax expense	31,550	22,869	35,689
Net Income	$ 100,946	$ 94,463	$ 102,708