v3.26.3
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Income Statement [Abstract]        
Operating revenue $ 332,168 $ 311,235 $ 855,337 $ 780,162
Operations:        
Water production costs 102,103 102,703 265,275 251,197
Administrative and general 35,010 36,237 104,917 103,728
Other operations 37,512 33,455 113,889 93,986
Maintenance 9,428 9,812 26,944 26,523
Depreciation and amortization 34,708 36,118 104,208 108,103
Income tax expense 17,726 10,639 31,672 18,589
Property and other taxes 13,003 11,656 36,691 33,267
Total operating expenses 249,490 240,620 683,596 635,393
Net operating income 82,678 70,615 171,741 144,769
Other income and expenses:        
Non-regulated revenue 5,917 5,349 17,379 15,341
Non-regulated expenses (9,121) (2,456) (18,157) (8,790)
Other components of net periodic benefit credit 3,010 4,548 9,270 13,937
Allowance for equity funds used during construction 2,478 2,145 6,642 5,840
Income tax expense on other income and expenses (612) (1,960) (3,719) (5,415)
Net other income 1,672 7,626 11,415 20,913
Interest expense:        
Interest expense 20,170 18,113 60,598 52,086
Allowance for borrowed funds used during construction (1,216) (988) (3,328) (2,772)
Net interest expense 18,954 17,125 57,270 49,314
Net income 65,396 61,116 125,886 116,368
Net loss attributable to noncontrolling interest (12) (114) (24) (361)
Net income attributable to California Water Service Group $ 65,408 $ 61,230 $ 125,910 $ 116,729
Earnings per share:        
Basic (in dollars per share) $ 1.05 $ 1.03 $ 2.07 $ 1.96
Diluted (in dollars per share) $ 1.05 $ 1.03 $ 2.07 $ 1.96
Weighted average shares outstanding:        
Basic (in shares) 62,393 59,585 60,826 59,557
Diluted (in shares) 62,502 59,653 60,913 59,615