7Baggers

SJW Group
(NYSE:SJW) 

SJW stock logo

SJW Group, through its subsidiaries, provides water utility services in the United States. It engages in the production, purchase, storage, purification, distribution, wholesale, and retail sale of water and wastewater services. The company also provides non-tariffed services, including water system...

Founded: 1866
Full Time Employees: 732
Sector: Utilities
Industry: Utilities-Regulated Water

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Quarterly
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    Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2005-03-31 
                                                                                     
      operating revenue
    183,293,000 194,186,000 240,550,000 198,255,000 167,599,000 197,820,000 225,063,000 176,174,000 149,382,000                         93,529,000 124,578,000 102,073,000 69,045,000 79,306,000 112,344,000 86,944,000 61,112,000 87,613,000 82,955,000 72,402,000 62,112,000 69,286,000 125,430,000 70,356,000 54,596,000 67,262,000 85,238,000 74,230,000 50,139,000 62,449,000 82,374,000 65,575,000 51,149,000 62,338,000 73,914,000 59,007,000 43,696,000 50,752,000 70,347,000 54,128,000 40,411,000 48,556,000 69,326,000 58,194,000 40,021,000 49,529,000 69,507,000 60,058,000 41,253,000 47,602,000 64,847,000 55,135,000 39,017,000 44,504,000 63,119,000 47,873,000 33,306,000 
      operating expense:
                                                                                     
      production expenses:
                                                                                     
      purchased water
    26,945,000 24,806,000 38,163,000 37,421,000 25,953,000 39,937,000 54,310,000 38,129,000 26,192,000 34,928,000 46,044,000 32,592,000 22,418,000 38,021,000 38,744,000 26,352,000 19,217,000 21,797,000 33,121,000 27,668,000 15,645,000 23,770,000 35,130,000 25,889,000 15,934,000 23,492,000 35,583,000 26,381,000 13,662,000 24,705,000 33,545,000 23,712,000 15,416,000 19,518,000 30,833,000 22,181,000 13,924,000 20,108,000 28,681,000 14,485,000 9,697,000 13,718,000 22,085,000 16,002,000 9,284,000 9,992,000 15,616,000 11,942,000 9,730,000 13,700,000 21,092,000 18,314,000 10,119,000 11,978,000 22,768,000 17,783,000 13,577,000 15,038,000 19,182,000 12,681,000 7,416,000 9,829,000 16,574,000 11,335,000 5,819,000 9,753,000 15,174,000 12,601,000 7,789,000 10,729,000 16,390,000 14,176,000 6,996,000 9,223,000 16,760,000 13,287,000 9,326,000 10,663,000 16,067,000 11,512,000 7,012,000 
      power
    4,272,000 6,260,000 8,175,000 3,851,000 3,483,000 2,897,000 3,396,000 2,737,000 2,427,000 2,239,000 2,785,000 2,379,000 2,199,000 -1,498,000 3,913,000 3,394,000 3,080,000 2,938,000 4,179,000 3,391,000 3,003,000 3,185,000 3,994,000 3,426,000 2,725,000 2,496,000 2,294,000 1,493,000 1,160,000 1,406,000 1,882,000 1,624,000 1,268,000 1,804,000 2,500,000 1,704,000 1,287,000 1,110,000 2,141,000 1,614,000 1,237,000 921,000 2,500,000 1,528,000 1,172,000 2,300,000 3,453,000 2,623,000 1,489,000 1,883,000 3,074,000 1,777,000 885,000 1,354,000 2,274,000 1,303,000 865,000 1,028,000 1,979,000 1,373,000 1,014,000 1,579,000 2,122,000 1,584,000 1,144,000 1,339,000 2,666,000 1,817,000 760,000 1,904,000 2,579,000 2,010,000 1,066,000 1,791,000 2,565,000 2,264,000 912,000 1,033,000 2,415,000 1,162,000 671,000 
      groundwater extraction charges
    23,209,000 27,823,000 39,608,000 26,354,000 18,291,000 18,387,000 25,081,000 17,552,000 12,126,000 16,229,000 21,398,000 14,994,000 10,359,000 4,811,000 19,059,000 18,360,000 13,928,000 16,447,000 23,736,000 20,138,000 15,545,000 17,277,000 20,471,000 18,583,000 15,028,000 14,772,000 13,182,000 9,100,000 6,863,000 12,429,000 14,890,000 9,919,000 9,532,000 13,719,000 15,756,000 10,932,000 7,410,000 6,461,000 10,867,000 8,312,000 6,448,000 9,187,000 7,920,000 6,197,000 7,936,000 11,428,000 17,286,000 15,516,000 9,448,000 10,670,000 13,142,000 9,525,000 4,590,000 6,883,000 8,672,000 5,439,000 2,946,000 3,365,000 7,824,000 5,300,000 4,508,000 6,645,000 8,736,000 6,238,000 4,995,000 6,360,000 10,743,000 9,480,000 5,052,000 7,690,000 11,845,000 9,417,000 5,416,000 7,798,000 10,222,000 8,555,000 3,566,000     
      other production expenses
    11,998,000 14,116,000 12,374,000 13,243,000 11,240,000 12,831,000 12,919,000 12,052,000 11,049,000 11,257,000 12,415,000 11,921,000 12,043,000 11,802,000 11,888,000 11,596,000 10,123,000 11,173,000 11,069,000 9,831,000 9,402,000 9,915,000 10,092,000 10,280,000 10,093,000 9,738,000 5,295,000 5,159,000 5,099,000 4,724,000 4,836,000 4,626,000 4,212,000 4,163,000 3,874,000 3,655,000 3,511,000 3,352,000 3,311,000 3,272,000 3,232,000 3,083,000 3,033,000 3,065,000 2,997,000 2,993,000 3,073,000 3,001,000 2,862,000                                 
      total production expenses
    66,424,000 73,005,000 98,320,000 80,869,000 58,967,000 74,052,000 95,706,000 70,470,000 51,794,000 64,653,000 82,642,000 61,886,000 47,019,000 53,136,000 73,604,000 59,702,000 46,348,000 52,355,000 72,105,000 61,028,000 43,595,000 54,147,000 69,687,000 58,178,000 43,780,000 50,498,000 56,354,000 42,133,000 26,784,000 43,264,000 55,153,000 39,881,000 30,428,000 39,204,000 52,963,000 38,472,000 26,132,000 31,031,000 45,000,000 27,683,000 20,614,000 26,909,000 35,538,000 26,792,000 21,389,000 26,713,000 39,428,000 33,082,000 23,529,000                                 
      administrative and general
    29,807,000 38,137,000 31,306,000 28,795,000 27,760,000 33,866,000 25,708,000 20,468,000 25,788,000 26,897,000 23,888,000 23,527,000 24,344,000 24,030,000 23,909,000 23,260,000 24,205,000 22,400,000 22,713,000 21,326,000 20,893,000 20,824,000 19,529,000 17,772,000 21,262,000 25,890,000 14,712,000 13,408,000 12,291,000 12,655,000 12,752,000 11,958,000 11,568,000 15,517,000 13,477,000 13,412,000 12,605,000 12,348,000 12,449,000 11,536,000 11,705,000 12,270,000 12,101,000 11,464,000 11,296,000 11,039,000 10,574,000 9,510,000 9,450,000 11,429,000 10,706,000 10,085,000 11,494,000 10,745,000 10,773,000 10,746,000 10,548,000 9,960,000 9,882,000 9,658,000 9,636,000 8,225,000 8,168,000 6,683,000 7,058,000 6,824,000 6,807,000 6,897,000 7,130,000 5,879,000 6,322,000 5,648,000 5,839,000 5,704,000 5,575,000 5,265,000 5,790,000 5,438,000 5,632,000 4,947,000 4,549,000 
      maintenance
    8,376,000 9,910,000 8,016,000 7,470,000 7,499,000 8,221,000 8,512,000 7,881,000 6,687,000 6,916,000 6,457,000 6,298,000 6,058,000 10,083,000 7,065,000 6,891,000 6,695,000 6,810,000 6,369,000 6,587,000 6,265,000 6,188,000 4,550,000 5,334,000 6,086,000 6,528,000 4,923,000 4,729,000 4,325,000 4,378,000 4,980,000 4,596,000 4,460,000 5,137,000 4,374,000 4,258,000 3,661,000 5,394,000 4,217,000 4,054,000 3,811,000 3,769,000 3,975,000 3,844,000 3,368,000 3,652,000 3,975,000 3,573,000 3,274,000 3,590,000 3,325,000 3,433,000 3,200,000 3,817,000 3,411,000 3,133,000 2,989,000 3,406,000 3,331,000 3,476,000 3,048,000 3,282,000 2,895,000 3,289,000 2,776,000 3,490,000 3,550,000 3,216,000 2,916,000 3,511,000 3,296,000 3,272,000 3,044,000 3,022,000 2,819,000 2,995,000 2,792,000 2,881,000 2,680,000 2,323,000 2,038,000 
      property taxes and other non-income taxes
    8,954,000 10,469,000 9,516,000 8,506,000 9,195,000 9,318,000 9,361,000 8,419,000 8,830,000 9,383,000 8,795,000 7,896,000 8,401,000 8,330,000 8,354,000 7,579,000 8,309,000 8,175,000 8,125,000 7,149,000 7,515,000 7,524,000 7,797,000 7,102,000 7,463,000 7,027,000 4,065,000 3,848,000 4,128,000 3,643,000 4,016,000 3,450,000 3,866,000 3,382,000 3,454,000 3,111,000 3,695,000 3,008,000 3,213,000 2,684,000 3,218,000 2,789,000 2,893,000 2,890,000 3,095,000 2,835,000 2,872,000 2,575,000 2,804,000 2,548,000 2,686,000 2,534,000 2,549,000 2,452,000 2,397,000 2,419,000 2,435,000 2,314,000 2,397,000 2,123,000 2,087,000 2,088,000 2,056,000 2,060,000 1,703,000                 
      depreciation and amortization
    32,306,000 29,526,000 28,765,000 28,750,000 28,282,000 28,696,000 27,423,000 28,366,000 28,370,000 26,996,000 26,455,000 26,121,000 26,296,000 26,075,000 25,529,000 25,207,000 27,606,000 23,613,000 23,837,000 23,512,000 23,438,000 22,727,000 22,417,000 22,753,000 21,382,000 20,224,000 15,122,000 15,101,000 15,145,000 13,680,000 13,682,000 13,656,000 13,583,000 12,075,000 12,065,000 12,033,000 12,119,000 11,136,000 11,119,000 11,187,000 11,183,000 10,191,000 10,188,000 10,202,000 10,159,000 9,458,000 9,467,000 9,495,000 9,485,000 8,693,000 8,787,000 8,743,000 8,816,000 8,176,000 8,288,000 8,326,000 8,308,000 7,804,000 7,803,000 7,792,000 7,794,000 7,068,000 7,082,000 7,070,000 7,111,000 6,451,000 6,403,000 6,238,000 6,551,000 6,008,000 5,988,000 5,984,000 6,063,000 5,879,000 5,690,000 5,672,000 5,613,000 5,315,000 5,508,000 5,286,000 5,023,000 
      total operating expense
    145,867,000 161,047,000 175,923,000 154,390,000 131,703,000 154,153,000 166,710,000 135,604,000 121,469,000 134,845,000 148,237,000 125,728,000 112,118,000 120,989,000 138,379,000 122,639,000 107,713,000 108,070,000 133,149,000 119,602,000 101,706,000 111,410,000 123,980,000 111,139,000 100,327,000 119,822,000 96,913,000 80,994,000 65,274,000 81,236,000 99,025,000 76,287,000 67,711,000 75,315,000 86,333,000 71,286,000 58,212,000 62,917,000 75,998,000 57,144,000 50,531,000 55,928,000 64,695,000 55,192,000 49,307,000 53,697,000 66,316,000 58,235,000 48,542,000 55,911,000 65,892,000 57,293,000 44,366,000 48,339,000 61,497,000 51,990,000 44,424,000 45,818,000 55,428,000 45,223,000 38,095,000 46,960,000 57,927,000 45,884,000 35,756,000 42,311,000 57,657,000 50,163,000 36,566,000 43,402,000 58,042,000 50,526,000 35,483,000 41,049,000 54,116,000 47,075,000 34,608,000    28,426,000 
      operating income
    37,426,000 33,139,000 64,627,000 43,865,000 35,896,000 43,667,000 58,353,000 40,570,000 27,913,000 36,493,000 56,606,000 31,158,000 25,178,000 50,385,000 37,602,000 26,402,000 16,589,000 31,667,000 33,774,000 32,639,000 13,079,000 24,290,000 41,883,000 36,070,000 15,427,000 6,016,000 17,084,000 21,971,000 12,408,000 17,482,000 25,828,000 22,799,000 7,331,000 18,214,000 38,245,000 30,787,000 10,833,000 16,389,000 36,346,000 29,800,000 10,581,000 31,685,000 18,260,000 17,210,000 12,805,000 15,589,000 59,114,000 12,121,000 6,054,000 11,351,000 19,346,000 16,937,000 5,773,000 14,110,000 20,877,000 13,585,000 6,725,000 16,520,000 18,486,000 13,784,000 5,601,000 3,792,000 12,420,000 8,244,000 4,655,000 6,245,000 11,669,000 8,031,000 3,455,000 6,127,000 11,465,000 9,532,000 5,770,000 6,553,000 10,731,000 8,060,000 4,409,000 6,734,000 11,401,000 8,637,000 4,880,000 
      yoy
    4.26% -24.11% 10.75% 8.12% 28.60% 19.66% 3.09% 30.21% 10.86% -27.57% 50.54% 18.01% 51.78% 59.11% 11.33% -19.11% 26.84% 30.37% -19.36% -9.51% -15.22% 303.76% 145.16% 64.17% 24.33% -65.59% -33.85% -3.63% 69.25% -4.02% -32.47% -25.95% -32.33% 11.14% 5.22% 3.31% 2.38% -48.28% 99.05% 73.16% -17.37% 103.25% -69.11% 41.98% 111.51% 37.34% 205.56% -28.43% 4.87% -19.55% -7.33% 24.67% -14.16% -14.59% 12.93% -1.44% 20.07% 335.65% 48.84% 67.20% 20.32% -39.28% 6.44% 2.65% 34.73% 1.93% 1.78% -15.75% -40.12% -6.50% 6.84% 18.26% 30.87% -2.69% -5.88% -6.68% -9.65%     
      qoq
    12.94% -48.72% 47.33% 22.20% -17.80% -25.17% 43.83% 45.34% -23.51% -35.53% 81.67% 23.75% -50.03% 34.00% 42.42% 59.15% -47.61% -6.24% 3.48% 149.55% -46.15% -42.01% 16.12% 133.81% 156.43% -64.79% -22.24% 77.07% -29.02% -32.31% 13.29% 210.99% -59.75% -52.38% 24.22% 184.20% -33.90% -54.91% 21.97% 181.64% -66.61% 73.52% 6.10% 34.40% -17.86% -73.63% 387.70% 100.21% -46.67% -41.33% 14.22% 193.38% -59.09% -32.41% 53.68% 102.01% -59.29% -10.64% 34.11% 146.10% 47.71% -69.47% 50.66% 77.10% -25.46% -46.48% 45.30% 132.45% -43.61% -46.56% 20.28% 65.20% -11.95% -38.93% 33.14% 82.81% -34.53% -40.94% 32.00% 76.99%  
      operating margin %
    Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 29.25% 27.63% 19.86% 18.34% 44.85% 21.37% 17.71% 13.35% 29.19% 20.23% 21.44% 11.39% 22.66% 25.25% 24.50% 13.33% 8.17% 14.99% 21.34% 15.97% 23.39% 20.69% 23.01% 9.77% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 
      other income:
                                                                                     
      interest on long-term debt and other interest expense
    -18,838,000 -18,283,000 -17,898,000 -18,122,000 -18,272,000 -17,996,000 -17,516,000 -18,294,000 -17,584,000 -17,231,000 -16,744,000 -16,397,000 -15,772,000 -10,540,000 -14,190,000 -14,241,000 -13,729,000 -10,163,750 -13,535,000 -13,681,000 -13,439,000 -9,909,500 -13,174,000 -13,180,000 -13,284,000 -4,773,250 -6,588,000 -6,714,000 -5,791,000 -4,553,250 -6,077,000 -6,084,000 -6,052,000                                                 
      pension non-service credit
    1,939,000 1,626,000 1,587,000 1,620,000 1,603,000 940,000 940,000 939,000 950,000                                                                         
      other
    1,879,000 -1,839,000 2,607,000 1,982,000 795,000 -2,604,000 -1,197,000 1,205,000 2,651,000 1,840,000 1,661,000 2,115,000 3,266,000 1,691,000 875,000 824,000 995,000 1,988,000 1,244,000 1,784,000 1,754,000 2,971,000 1,130,000 1,048,000 757,000 901,000 303,000 517,000 390,000 514,000 538,000 679,000 676,000 484,000 341,000 596,000 445,000 531,000 410,000 150,000 309,000 399,000 398,000 230,000 293,000 1,211,000 57,000 439,000 220,000 411,000 354,000 589,000 371,000 1,070,000 165,000 162,000 198,000 144,000 150,000 106,000 136,000 4,968,000 4,792,000 4,524,000 4,468,000 4,640,000 4,697,000 4,547,000 3,977,000 4,295,000 4,343,000 4,069,000 3,683,000 3,934,000 3,724,000 3,628,000 3,621,000 4,011,000 3,709,000 3,715,000 3,190,000 
      income before income taxes
    22,406,000 14,643,000 50,923,000 29,345,000 20,022,000 24,007,000 40,580,000 24,420,000 13,930,000 20,778,000 40,783,000 16,774,000 12,608,000 38,337,000 25,257,000 13,926,000 4,804,000 21,229,000 21,817,000 24,081,000 1,720,000 12,438,000 30,671,000 23,931,000 2,855,000 -5,834,000 12,043,000 17,954,000 7,918,000 11,297,000 19,891,000 16,939,000 705,000 25,643,000 33,063,000 32,548,000 5,239,000 21,724,000 31,471,000 27,686,000 5,500,000 26,728,000 15,071,000 11,866,000 7,489,000 11,275,000 54,097,000 9,938,000 1,467,000 6,888,000 14,753,000 12,631,000 2,247,000 10,244,000 16,950,000 8,758,000 1,908,000 11,558,000 13,575,000 9,268,000 1,043,000                     
      provision for income taxes
    3,393,000 -1,577,000 5,791,000 4,670,000 3,471,000 1,087,000 1,928,000 3,724,000 2,231,000 1,829,000 4,561,000 -1,512,000 1,078,000 4,838,000 223,000 2,368,000 1,067,000 3,210,000 2,749,000 3,306,000 -896,000 -846,000 4,578,000 4,210,000 438,000 -348,000 2,565,000 4,192,000 2,045,000 2,474,000 4,103,000 4,068,000 -580,000 8,338,000 13,523,000 11,964,000 1,568,000 7,997,000 12,512,000 10,911,000 2,122,000 10,536,000 5,537,000 4,405,000 2,794,000 5,587,000 15,731,000 3,092,000 561,000 2,211,000 5,803,000 5,191,000 930,000 4,320,000 6,866,000 3,557,000 799,000 4,956,000 5,360,000 3,817,000 433,000                     
      net income
    19,013,000 16,220,000 45,132,000 24,675,000 16,551,000 22,920,000 38,652,000 20,696,000 11,699,000 18,949,000 36,222,000 18,286,000 11,530,000 33,499,000 25,034,000 11,558,000 3,737,000 10,614,750 19,068,000 20,775,000 2,616,000        5,873,000        3,671,000 13,727,000 18,959,000 16,775,000 3,378,000 16,192,000 9,534,000 7,461,000 4,695,000 5,688,000 38,366,000 6,846,000 906,000 4,677,000 8,950,000 7,440,000 1,317,000 5,924,000 10,084,000 5,201,000 1,109,000 6,602,000 8,215,000 5,451,000 610,000 8,118,000 10,787,000 4,516,000 985,000 2,620,000 8,017,000 4,418,000 116,000 4,208,000 8,257,000 6,278,000 2,718,000 3,784,000 8,011,000 5,406,000 2,122,000 19,049,000 8,858,000 6,471,000 2,681,000 
      yoy
    14.88% -29.23% 16.76% 19.23% 41.47% 20.96% 6.71% 13.18% 1.47% -43.43% 44.69% 58.21% 208.54% 215.59% 31.29% -44.37% 42.85%                    8.67% -15.22% 98.86% 124.84% -28.05% 184.67% -75.15% 8.98% 418.21% 21.62% 328.67% -7.98% -31.21% -21.05% -11.25% 43.05% 18.76% -10.27% 22.75% -4.59% 81.80% -18.67% -23.84% 20.70% -38.07% 209.85% 34.55% 2.22% 749.14% -37.74% -2.91% -29.63% -95.73% 11.21% 3.07% 16.13% 28.09% -80.14% -9.56% -16.46% -20.85%     
      qoq
    17.22% -64.06% 82.91% 49.08% -27.79% -40.70% 86.76% 76.90% -38.26% -47.69% 98.09% 58.59% -65.58% 33.81% 116.59% 209.29% -64.79% -44.33% -8.22% 694.15%                 -73.26% -27.60% 13.02% 396.60% -79.14% 69.83% 27.78% 58.91% -17.46% -85.17% 460.41% 655.63% -80.63% -47.74% 20.30% 464.92% -77.77% -41.25% 93.89% 368.98% -83.20% -19.63% 50.71% 793.61% -92.49% -24.74% 138.86% 358.48% -62.40% -67.32% 81.46% 3708.62% -97.24% -49.04% 31.52% 130.98% -28.17% -52.76% 48.19% 154.76% -88.86% 115.05% 36.89% 141.37%  
      net income margin %
    Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 15.19% 17.68% 11.66% 8.40% 29.82% 14.23% 7.75% 3.01% 9.78% 11.42% 13.65% 2.28% 0% 0% 0% 0% 0% 0% 0% 7.56% 0% 0% 0% 0% NaN% NaN% NaN% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% Infinity% 
      other comprehensive loss
                                                            -11,000 -52,500 -227,000     -1,240,000    -3,258,000              
      comprehensive income
    19,013,000 15,727,000 45,132,000 24,675,000 16,551,000 23,531,000 38,652,000 20,696,000 11,257,000 18,843,000 36,540,000 18,295,000 11,623,000 35,741,000 24,861,000 11,310,000 3,556,000 10,648,000 19,056,000 20,882,000 2,654,000        5,873,000        3,787,000 13,834,000 18,790,000 15,520,000 3,908,000 16,368,000 9,422,000 7,206,000 4,680,000 6,021,000 38,095,000 5,716,000 1,104,000 5,304,000 9,135,000 7,351,000 1,671,000 5,871,000 10,125,000 5,260,000 1,098,000 6,727,000 7,988,000 5,479,000 599,000 -102,000 8,906,000 3,276,000 1,498,000 1,245,000 9,380,000 1,160,000 -2,850,000 9,355,000 11,975,000 2,787,000 3,451,000 2,830,000 8,653,000 4,867,000 772,000 24,974,000 9,630,000 429,000  
      earnings per share
                                                                                     
      —basic
    0.5 0.44 1.27 0.71 0.49                                                                             
      —diluted
    0.49 0.44 1.27 0.71 0.49                                                                             
      dividends per share
    0.44 0.315 0.42 0.42 0.42 0.3 0.4 0.4 0.4 0.285 0.38 0.38 0.38 0.27 0.36 0.36 0.36 0.255 0.34 0.34 0.34 0.24 0.32 0.32 0.32 0.225 0.3 0.3 0.3 0.21 0.28 0.28 0.28 0.163 0.22 0.22 0.22 0.153 0.2 0.2 0.2 0.148 0.2 0.2 0.2 0.14 0.19 0.19 0.19 0.138 0.18 0.18 0.18 0.133 0.18 0.18 0.18 0.13 0.17 0.17 0.17 0.128 0.17 0.17 0.17 0.123 0.16 0.17 0.16 0.12 0.16 0.16 0.16 0.113 0.15 0.15 0.15 0.105 0.14 0.14 0.27 
      weighted-average shares outstanding
                                                                                     
      other comprehensive income
         -110,500   -442,000 105,000 318,000 9,000 93,000 -150,500 -173,000 -248,000 -181,000 33,250 -12,000 107,000 38,000 -12,250 76,000 10,000                         198,000 112,500 185,000 -89,000 354,000 22,250 41,000 59,000    28,000 -11,000 -652,000 -1,881,000  513,000 -1,215,250 1,363,000   5,147,000 3,718,000   -954,000 642,000    772,000  -2,777,000 
      earnings per share
                                                                                     
      basic
         0.548 1.17 0.64 0.36 0.525 1.14 0.58 0.37 0.333 0.83 0.38 0.12 0.36 0.64 0.7 0.09        0.21        0.18 0.478 0.93 0.82 0.17 0.268 0.47 0.37 0.23 0.57 1.9 0.34 0.04 0.225 0.44 0.37 0.07 0.22 0.54 0.28 0.06 0.193 0.44 0.29 0.03 0.218 0.58 0.24 0.05 0.17 0.43 0.24 0.01 0.235 0.45 0.34 0.15 0.213 0.44 0.3 0.12 0.268 0.48 0.35 0.29 
      diluted
         0.545 1.17 0.64 0.36 0.523 1.13 0.58 0.37 0.333 0.82 0.38 0.12 0.358 0.64 0.69 0.09        0.21        0.18 0.475 0.92 0.82 0.16 0.265 0.46 0.36 0.23 0.565 1.88 0.34 0.04 0.223 0.44 0.37 0.07 0.218 0.53 0.28 0.06 0.19 0.44 0.29 0.03 0.218 0.58 0.24 0.05 0.168 0.43 0.23 0.01 0.233 0.44 0.34 0.15 0.21 0.43 0.29 0.11 0.263 0.48 0.35 0.29 
      weighted-average shares outstanding
                                                                                     
      basic
          32,896,967 32,397,501 32,076,720  31,862,518 31,499,068 30,936,476  30,269,462 30,244,511 30,224,135  29,816,736 29,799,499 28,862,882  28,533,907 28,507,940 28,489,357  28,451,811 28,440,221 28,423,214  20,626,654 20,592,014 20,561,329  20,516,172 20,504,357 20,485,968  20,451,930 20,437,612 20,413,745  20,375,960 20,357,068 20,326,897  20,231,426 20,214,349 20,194,851  20,151,729 20,072,703 18,689,367  18,647,537 18,626,547 18,611,752  18,586,887 18,577,226 18,570,140  18,536,802 18,528,497 18,519,036  18,494,274 18,482,670 18,469,785  18,423,325 18,403,322 18,377,497    18,300,260  18,277,728 18,271,608 9,135,513 
      diluted
          32,982,580 32,460,894 32,144,579  31,934,636 31,594,494 31,040,897  30,392,295 30,346,040 30,335,974  29,952,477 29,924,191 28,990,203  28,703,343 28,683,208 28,674,221  28,549,928 28,526,022 28,507,738  20,732,040 20,732,127 20,701,031  20,697,097 20,673,775 20,655,239  20,602,410 20,578,585 20,560,995  20,531,855 20,501,437 20,480,276  20,424,140 20,398,002 20,385,271  20,346,817 20,266,480 18,888,909  18,854,042 18,824,481 18,821,087  18,802,606 18,784,694 18,775,385  18,751,921 18,740,662 18,721,491  18,689,769 18,670,057 18,658,382  18,618,780 18,596,276 18,592,386    18,526,120  18,558,508 18,530,671 9,220,969 
      revenue
             124,756,250 204,843,000 156,886,000 137,296,000 112,331,000 175,981,000 149,041,000 124,302,000 108,487,250 166,923,000 152,241,000 114,785,000 107,206,500 165,863,000 147,209,000 115,754,000 73,661,000 113,997,000 102,965,000 77,682,000 74,745,250 124,853,000 99,086,000 75,042,000                                                 
      yoy
             11.06% 16.40% 5.26% 10.45% 3.54% 5.43% -2.10% 8.29% 1.19% 0.64% 3.42% -0.84% 45.54% 45.50% 42.97% 49.01% -1.45% -8.70% 3.91% 3.52%                                                     
      qoq
             -39.10% 30.57% 14.27% 22.22% -36.17% 18.08% 19.90% 14.58% -35.01% 9.64% 32.63% 7.07% -35.36% 12.67% 27.17% 57.14% -35.38% 10.71% 32.55% 3.93% -40.13% 26.00% 32.04%                                                  
      gain on sale of nonutility property
                                                                                     
      pension non-service (cost) credit
             -324,000 -740,000                                                                       
      pension non-service cost
               -102,000 -64,000 2,163,000 970,000 941,000 949,000 331,000 334,000 339,000 326,000 -104,000 -218,000 -7,000 -45,000 -409,000 -921,000 -907,000 -921,000 -589,000 -589,000 -595,000 -583,000                                                 
      gain on sale of nonutility properties
                 -665,000 -82,000  -5,450,000                                                                 
      gain on sale of texas water alliance
                       3,000,000                                                              
      gain on sale of real estate investments
                         -102,000 1,050,000   184,000  745,000        6,903,000  31,000 124,000                                           
      merger related expenses
                            354,000 9,655,000 1,737,000 1,775,000 2,601,000 3,616,000 8,442,000 2,746,000 3,806,000                                                 
      interest income on money market fund
                             197,000 2,165,000 2,342,000 1,832,000                                                     
      net income before noncontrolling interest
                         13,284,000 26,093,000 19,721,000  -5,486,000 9,478,000 13,762,000  8,823,000 15,788,000 12,871,000  17,305,000 19,540,000 20,584,000                                              
      less net income attributable to the noncontrolling interest
                               224,000        1,896,000                                              
      sjw group net income
                         13,284,000 26,093,000 19,721,000 2,417,000 -5,486,000 9,478,000 13,538,000  8,823,000 15,788,000 12,871,000 1,285,000 17,305,000 19,540,000 18,688,000                                              
      sjw group comprehensive income
                         12,143,000 26,169,000 19,731,000 2,282,000 -5,360,000 9,478,000 13,538,000  8,823,000 15,788,000 12,871,000 1,285,000 17,732,000 19,620,000 18,744,000                                              
      sjw group earnings per share
                                                                                     
      basic
                         0.423 0.91 0.69 0.08 0.255 0.33 0.48  0.363 0.77 0.63 0.06 0.51 0.95 0.91                                              
      diluted
                         0.42 0.91 0.69 0.08 0.253 0.33 0.47  0.363 0.76 0.62 0.06 0.508 0.94 0.9                                              
      other comprehensive income, net of tax:
                                                                                     
      unrealized loss on investment, net of tax benefit of 50 in 2020
                            -135,000                                                         
      unrealized loss on california water service group stock
                                    -667,000                                                 
      gain on sale of california water service group stock
                                  191,000         3,197,000        2,017,000                                  
      unrealized gain on california water service group stock
                                   140,000                                                  
      unrealized gain on investment
                                     63,000 80,000 56,000 116,000 212,000 -169,000 487,000 530,000                                         
      loss on sale of california water service group stock
                                                                                     
      interest on long-term debt
                                     -5,464,000 -5,487,000 -5,696,000 -5,963,000 -5,166,000 -4,993,000 -5,007,000 -5,039,000 -5,087,000 -5,200,000 -5,299,000 -5,339,000 -5,278,000 -5,050,000 -4,553,000 -4,542,000 -4,622,000 -4,722,000 -4,678,000 -4,645,000 -4,640,000 -4,683,000 -4,659,000 -4,680,000 -4,624,000 -4,684,000 -4,235,000 -4,256,000                     
      mortgage and other interest expense
                                     -111,000 -54,000 -60,000 -94,000 -342,000 -433,000 -462,000 -396,000 -313,000 -316,000 -319,000 -313,000 -289,000 -347,000 -401,000 -328,000 -313,000 -287,000 -278,000 -377,000 -357,000 -380,000 -391,000 -395,000 -518,000 -436,000 -447,000 -475,000 -452,000 -486,000 -569,000 -500,000 -468,000 -476,000 -500,000 -529,000     -614,000 -541,000 -491,000     -226,000 
      dividend income
                                     21,000 18,000 18,000 18,000 17,000 17,000 8,000 45,000 44,000 43,000 44,000 43,000 42,000 42,000 42,000 63,000 61,000 62,000 61,000 62,000 61,000 61,000 61,000 60,000 59,000 59,000 60,000 60,000                 237,250 317,000 316,000  
      reclassification adjustment for gain realized on sale of investments
                                         -435,500  -1,742,000      -292,750  -1,171,000                                  
      gain on sale of real estate investment
                                              1,886,000    281,000 273,000     1,063,000  910,000                           
      unrealized loss on investment
                                             -95,500 -112,000               -89,000 -385,000     -2,101,000    -5,522,000              
      unrealized income on investment
                                               -255,000 -15,000 -8,000 -271,000 41,000            48,000 -19,000 -1,105,000 -3,188,000  869,000 -2,059,750 2,310,000  -5,027,000 407,000 6,303,000  1,243,000 -528,250 1,088,000   -357,500 1,309,000 -10,240,000  
      production costs:
                                                                                     
      other production costs
                                                     2,168,750 3,080,000 2,882,000 2,713,000 2,934,000 2,914,000 2,841,000 2,756,000 2,903,000 3,030,000 2,820,000 2,592,000                     
      total production costs
                                                     22,798,250 40,388,000 32,498,000 18,307,000 23,149,000 36,628,000 27,366,000 20,144,000 22,334,000 32,015,000 22,174,000 15,530,000 18,053,000 27,432,000 19,157,000 11,958,000 17,452,000 28,583,000 23,898,000 13,601,000 20,323,000 30,814,000 25,603,000 13,478,000 18,812,000 29,547,000 24,106,000 13,804,000     
      other comprehensive loss:
                                                                                     
      less: income taxes related to other comprehensive loss
                                                             36,500 158,000     861,000    2,264,000              
      operations:
                                                                                     
      loss on sale of utility property
                                                                -23,000                     
      other comprehensive income:
                                                                                     
      less: income taxes related to other comprehensive income
                                                               -20,000 8,000 453,000 1,307,000  -356,000 844,500 -947,000  2,061,000     216,500 -446,000  938,000     
      operation:
                                                                                     
      income taxes
                                                                 -321,000 5,502,000 3,101,000 682,000 1,469,000 5,735,000 2,975,000 101,000 1,587,000 5,516,000 4,309,000 1,786,000 2,130,000 5,178,000 3,835,000 1,406,000 2,740,000 6,119,000 4,545,000 1,920,000 
      interest on senior notes
                                                                 -4,252,000 -4,166,000 -3,636,000 -3,622,000 -3,612,000 -3,638,000 -3,488,000 -3,259,000     -2,753,000 -2,706,000 -2,713,000     -2,390,000 
      gain on sale of california water service group investment, net of taxes of 1,831
                                                                 658,750 2,635,000                   
      dividends
                                                                 292,000 239,000 327,000 327,000 325,000 324,000 325,000 324,000 322,000 322,000 321,000 322,000 319,000 319,000 319,000 319,000    313,000 
      property taxes and other nonincome taxes
                                                                     1,985,000 1,882,000 2,392,000 2,290,000 1,799,000 1,763,000 1,641,000 1,590,000 1,568,000 1,583,000 1,574,000 1,582,000 1,479,000 1,565,000 1,379,000 1,412,000 
      other comprehensive income, net:
                                                                        -2,966,000             
      other (expense) income:
                                                                                     
      other comprehensive
                                                                                     
      unrealized (loss) on investment
                                                                               -913,000      
      less: income taxes related to other comprehensive
                                                                           2,426,000    374,000      
      other comprehensive (loss)
                                                                               -539,000      
      other comprehensive income net:
                                                                            733,000         
      gain on sale of nonutility property, net of taxes of 1,056
                                                                                     
      weighted average shares outstanding
                                                                                     
      basic
                                                                              18,350,007 18,324,819      
      diluted
                                                                              18,561,631 18,539,267      
      operating expenses
                                                                                     
      ground water extraction charges
                                                                                 3,631,750 8,023,000   
      total operating expenses
                                                                                 29,978,750 51,718,000 39,236,000  
      sale of nonutility property, net of taxes of 1,056 for 2006 and 761 for 2005
                                                                                 383,750    
      income tax benefit
                                                                                 146,500  4,198,000  
      pump taxes
                                                                                   4,367,000 2,611,000 
      sale of nonutility property, net of taxes of 1,056
                                                                                     
      comprehensive income per share
                                                                                     
      basic
                                                                                   0.02  
      diluted
                                                                                   0.02  
      income taxes related to other comprehensive income
                                                                                    1,930,000 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2005-03-31 
                                                                                       
        assets
                                                                                       
        utility plant:
                                                                                       
        land
      44,498,000 44,600,000 44,657,000 44,681,000 44,657,000 44,657,000 44,646,000 41,415,000 41,415,000 41,415,000 41,427,000 41,386,000 40,820,000 39,982,000 39,885,000 39,900,000 39,900,000 39,004,000 38,885,000 38,352,000 38,339,000 36,845,000 34,938,000 34,929,000 34,697,000 34,395,000 18,286,000 18,303,000 18,296,000 18,296,000 18,300,000 18,212,000 17,831,000 17,831,000 18,237,000 18,073,000 18,078,000 17,923,000 17,885,000 17,930,000 17,861,000 17,853,000 17,209,000 16,839,000 16,838,000 16,838,000 10,867,000 10,844,000 10,844,000 10,418,000 10,389,000 10,279,000 10,178,000 10,156,000 8,993,000 8,987,000 8,893,000 8,852,000 8,579,000 8,579,000 8,579,000 8,579,000 8,580,000 8,563,000 8,558,000 8,558,000 8,502,000 8,404,000 8,402,000 8,134,000 5,687,000 5,704,000 5,704,000 5,695,000 5,668,000 5,668,000 4,837,000 4,837,000 4,719,000 4,680,000 1,735,000 
        depreciable plant and equipment
      4,785,471,000 4,688,644,000 4,526,148,000 4,395,856,000 4,311,934,000 4,249,314,000 4,141,490,000 4,077,009,000 4,005,195,000 3,967,911,000 3,879,507,000 3,761,749,000 3,706,176,000 3,661,285,000 3,596,198,000 3,468,240,000 3,420,850,000 3,381,908,000 3,318,451,000 3,269,984,000 3,223,736,000 3,198,060,000 3,117,413,000 3,031,451,000 3,014,589,000 2,988,454,000 1,897,117,000 1,870,156,000 1,848,768,000 1,833,051,000 1,783,654,000 1,755,624,000 1,733,449,000 1,714,228,000 1,614,139,000 1,575,892,000 1,566,643,000 1,554,016,000 1,535,986,000 1,495,627,000 1,464,809,000 1,438,321,000 1,410,176,000 1,388,775,000 1,369,521,000 1,353,772,000 1,327,949,000 1,301,143,000 1,275,335,000 1,254,586,000 1,231,964,000 1,209,767,000 1,185,699,000 1,166,220,000 1,139,878,000 1,109,973,000 1,085,972,000 1,070,016,000 1,038,753,000 1,029,305,000 1,018,311,000 1,004,689,000 985,853,000 946,512,000 923,972,000 913,071,000 894,656,000 878,703,000 866,872,000 855,427,000 829,202,000 820,732,000 793,524,000 778,277,000 764,249,000 743,335,000 726,757,000 716,679,000 699,758,000 687,729,000 613,675,000 
        construction work in progress
      257,175,000 269,272,000 277,948,000 241,793,000 199,039,000 179,486,000 203,040,000 159,084,000 133,369,000 106,980,000                                                                        
        intangible assets
      51,683,000 51,683,000 51,683,000 51,604,000 51,604,000 51,604,000 64,372,000 35,986,000 35,946,000 35,946,000 35,946,000 35,947,000 35,947,000 35,959,000 35,960,000 36,220,000 36,290,000 36,276,000 37,347,000 35,357,000 35,167,000 35,167,000 35,274,000 32,826,000 32,775,000 33,424,000 15,799,000 15,799,000 15,799,000 15,799,000 15,748,000 15,650,000 15,567,000 14,413,000 25,164,000 25,165,000 25,090,000 23,989,000 23,811,000 23,906,000 23,904,000 22,675,000 22,139,000 22,182,000 20,324,000 19,333,000 19,149,000 19,149,000 19,148,000 18,341,000 18,340,000 18,259,000 18,102,000 15,561,000 15,561,000 15,559,000 15,549,000 14,732,000 14,730,000 14,730,000 14,313,000 13,538,000 13,258,000 13,092,000 11,549,000 11,278,000 11,278,000 10,790,000 10,790,000 8,040,000 8,040,000 8,040,000 8,040,000 8,040,000 8,040,000 8,040,000 8,040,000 8,040,000 7,840,000 7,840,000 7,840,000 
        total utility plant
      5,138,827,000 5,054,199,000 4,900,436,000 4,733,934,000 4,607,234,000 4,525,061,000 4,453,548,000 4,313,494,000 4,215,925,000 4,152,252,000 4,070,084,000 3,980,261,000 3,904,252,000                                                                  730,901,000 715,237,000 630,400,000 
        less: accumulated depreciation and amortization
      1,140,243,000 1,120,232,000 1,102,312,000 1,079,538,000 1,058,985,000  1,047,631,000                                                                           
        net utility plant
      3,998,584,000 3,933,967,000 3,798,124,000 3,654,396,000 3,548,249,000 3,488,611,000 3,405,917,000 3,283,429,000 3,208,847,000 3,170,654,000 2,764,950,000 2,703,159,000 2,654,151,000                                                                  499,260,000 489,557,000 435,782,000 
        nonutility properties
      2,166,000 1,683,000 1,314,000 1,314,000 1,314,000                                                                             
        net nonutility properties
      2,062,000 1,580,000 1,213,000 1,215,000 1,215,000                                                                             
        current assets:
                                                                                       
        cash and cash equivalents
      153,008,000 20,686,000 11,314,000 19,849,000 23,696,000 11,114,000 3,967,000 22,804,000 4,542,000 9,723,000 21,067,000 25,474,000                   13,327,000 8,926,000 6,954,000 7,799,000 7,569,000 9,220,000 7,092,000 6,349,000 17,663,000 12,518,000 8,692,000 5,239,000 6,271,000 5,238,000 5,417,000 2,399,000 5,599,000 6,023,000 3,118,000 2,299,000 3,219,000 4,005,000 2,145,000 2,522,000 6,684,000 9,258,000 19,261,000 26,734,000 43,069,000 45,356,000 2,354,000 1,730,000 3,335,000 3,495,000 1,800,000 1,416,000 1,860,000 4,771,000 2,436,000 3,406,000 2,177,000 1,836,000 1,715,000 2,354,000 2,227,000 5,693,000 2,691,000 3,788,000    
        accounts receivable:
                                                                                       
        customers, net of allowances for credit losses of 748 and 722 on march 31, 2026 and december 31, 2025, respectively
      62,069,000                                                                                 
        income tax
      1,520,000 2,720,000   4,507,000 5,953,000 11,262,000  2,911,000 5,187,000       2,267,000 2,308,000 2,148,000  4,671,000 7,041,000 2,222,000 2,783,000 7,097,000 8,837,000 63,000 1,397,000  1,888,000  2,252,000 7,072,000 7,981,000   10,032,000 9,796,000 20,015,000 4,505,000 2,351,000 10,852,000 4,638,000 3,887,000 1,251,000 8,871,000 1,981,000  1,075,000 1,661,000  27,000  489,000  648,000 5,173,000 5,248,000 4,114,000 2,134,000 11,579,000 7,634,000     333,000 2,518,000 2,105,000 657,000  1,030,000  2,557,000        
        other
      11,263,000 7,710,000 6,490,000 7,666,000 6,775,000 7,059,000 6,286,000 5,584,000 2,199,000 3,684,000 4,381,000 4,814,000 5,145,000 5,560,000 7,300,000 4,079,000 4,470,000 4,735,000 4,342,000 4,054,000 5,455,000 4,269,000 2,828,000 2,043,000 2,036,000 2,833,000 2,719,000 2,456,000 2,040,000 1,203,000 826,000 1,034,000 1,578,000 1,118,000 1,609,000 1,038,000 3,170,000 3,383,000 950,000 1,699,000 1,731,000 2,192,000 2,682,000 3,074,000 3,027,000 3,385,000 719,000 850,000 966,000 476,000 565,000 1,152,000 939,000 854,000 982,000 1,108,000 1,298,000 746,000 1,194,000 885,000 731,000 993,000 560,000 577,000 427,000 677,000 491,000 538,000 964,000 1,154,000 1,709,000 1,557,000 1,384,000 1,222,000 911,000 1,032,000 1,000,000 1,028,000 731,000 971,000 636,000 
        accrued unbilled revenue
      65,189,000 68,971,000 73,131,000 67,960,000 58,616,000 60,847,000    49,543,000                                                                        
        prepaid expenses
      14,747,000 11,634,000 15,989,000 8,427,000 13,336,000 10,297,000 15,411,000 9,856,000 12,822,000 11,110,000 14,996,000 9,152,000 11,380,000 9,753,000 12,964,000 8,106,000 11,270,000 9,667,000 13,048,000 8,471,000 10,634,000 8,097,000                      2,950,000 2,543,000 2,300,000 3,113,000 2,218,000 2,035,000 2,119,000 2,554,000 1,980,000 1,646,000 1,589,000 2,066,000 1,468,000 1,304,000 1,598,000 2,066,000 1,381,000 1,120,000 1,473,000 1,983,000 1,320,000 1,295,000 1,596,000 1,681,000 1,511,000 1,143,000 1,293,000 1,705,000 1,177,000 1,377,000 1,632,000 1,971,000 1,080,000 1,214,000 1,538,000 1,986,000 1,163,000 1,269,000 
        current regulatory assets
      7,848,000 8,315,000 7,047,000 12,626,000 16,572,000 18,172,000 828,000 1,057,000 1,850,000 4,276,000 8,573,000 5,968,000 10,019,000 16,068,000 738,000 2,841,000 4,370,000 2,629,000 3,249,000 1,075,000 226,000 1,748,000 4,758,000 5,691,000 6,129,000 6,472,000 7,493,000 15,904,000 21,625,000 26,910,000     11,368,000 7,672,000 10,469,000 16,064,000 25,661,000 17,722,000 14,977,000 16,542,000 15,035,000 16,971,000 15,996,000 16,853,000 17,308,000                                   
        other current assets
      7,770,000 8,086,000 7,227,000 7,164,000 7,916,000 8,593,000 5,331,000 5,818,000 5,914,000 6,146,000 6,277,000 6,075,000 6,216,000 6,095,000 6,266,000 4,476,000 4,021,000 4,902,000 5,149,000 5,348,000 5,100,000 5,125,000 16,091,000 11,431,000 13,577,000 9,553,000 6,672,000 5,163,000 4,930,000 4,871,000 5,522,000 6,308,000 4,522,000 4,750,000 5,223,000 4,179,000 3,875,000 4,402,000 5,045,000 4,526,000 4,331,000 4,744,000 4,948,000                                       
        total current assets
      323,414,000 190,593,000 207,206,000 200,450,000 197,272,000 190,714,000 187,276,000 173,179,000 178,082,000 198,389,000                                                                     41,010,000 33,885,000 30,343,000 
        other assets:
                                                                                       
        regulatory assets, less current portion
      246,540,000 246,547,000 242,376,000 232,650,000 226,602,000 224,055,000 253,162,000 238,963,000 238,842,000 235,910,000                                                                        
        investments
      20,243,000 19,711,000 19,271,000 18,878,000 18,622,000 18,087,000 18,213,000 17,368,000 17,435,000 16,411,000 15,901,000 16,136,000 15,923,000 14,819,000 14,438,000 15,011,000 15,866,000 15,784,000 15,289,000 15,163,000 15,161,000 14,367,000 13,629,000 13,493,000 13,400,000 12,928,000                                                        
        postretirement benefit plans
      82,493,000 80,967,000 70,092,000 68,682,000 67,848,000 66,422,000 39,387,000 36,816,000 34,244,000 33,794,000 51,150,000 53,001,000 55,914,000 59,738,000 89,610,000 92,060,000 92,069,000 89,998,000 125,005,000 125,594,000 124,265,000 121,597,000 107,129,000 113,983,000 111,272,000 108,044,000 73,004,000 72,432,000 72,213,000 70,490,000 75,877,000 75,229,000 74,735,000 72,841,000 73,532,000 72,828,000 72,092,000 70,177,000 73,068,000 73,078,000 72,399,000 70,230,000 76,713,000 76,828,000 76,476,000 74,187,000 44,329,000 44,663,000 45,003,000 43,496,000 77,737,000 76,823,000 75,915,000 73,425,000 72,708,000 71,522,000 70,337,000 68,855,000 52,634,000 51,923,000 51,248,000 50,213,000 49,937,000 49,892,000 48,888,000 47,484,000 43,281,000 44,178,000 43,814,000 42,331,000 22,553,000 24,816,000 24,343,000 23,357,000 28,921,000 28,045,000 27,368,000 26,298,000 11,385,000 15,128,000 11,423,000 
        goodwill
      640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,311,000 640,471,000 628,144,000 628,144,000 628,144,000 628,144,000 627,036,000 628,343,000 628,287,000 628,287,000                                                        
        total other assets
      1,029,244,000 1,023,426,000 1,004,111,000 990,865,000 982,074,000 977,768,000 957,854,000 969,539,000 967,401,000 962,868,000                                                                     64,074,000 63,293,000 56,845,000 
        total assets
      5,353,304,000 5,149,566,000 5,010,654,000 4,846,926,000 4,728,810,000 4,658,309,000 4,552,302,000 4,439,427,000 4,367,512,000 4,345,067,000                                                                        
        capitalization and liabilities
                                                                                       
        capitalization:
                                                                                       
        stockholders’ equity:
                                                                                       
        common stock, 0.001 par value...
      42,000 36,000 36,000 35,000 34,000 34,000 33,000 33,000 32,000 32,000 32,000 32,000 31,000 31,000 30,000 30,000 30,000 30,000 30,000 30,000 30,000 29,000 29,000 29,000 28,000 28,000 28,000 28,000 28,000 28,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000 21,000                                            
        additional paid-in capital
      1,248,402,000 958,188,000 941,759,000 914,330,000 855,759,000 827,796,000 804,848,000 771,189,000 744,621,000 736,191,000 729,740,000 716,642,000 692,742,000 651,004,000 614,226,000 608,666,000 607,637,000 606,392,000 581,201,000 579,057,000 578,395,000 510,158,000 509,031,000 508,098,000 507,075,000 506,639,000 499,377,000 497,633,000 496,921,000 495,366,000 84,045,000 84,375,000 83,986,000 84,866,000 83,856,000 82,622,000 82,167,000 81,715,000 70,706,000 69,748,000 69,286,000 68,636,000 68,241,000 67,344,000 66,885,000 66,298,000 64,919,000 64,178,000 63,887,000 63,017,000 62,777,000 62,148,000 26,730,000 26,117,000 25,708,000 25,222,000 24,992,000 24,552,000 24,404,000 23,941,000 23,808,000 23,443,000 23,099,000 22,646,000 22,464,000 22,046,000 21,859,000 21,358,000 21,112,000 20,548,000 20,137,000 19,738,000 19,336,000 18,723,000 18,574,000 17,780,000 17,390,000 16,267,000 16,166,000 16,153,000 14,763,000 
        retained earnings
      584,171,000 581,080,000 579,908,000 549,646,000 539,584,000 537,184,000 527,575,000 502,037,000 494,249,000 495,383,000 488,585,000 464,464,000 458,142,000 458,356,000 435,856,000 421,741,000 421,095,000 428,260,000 420,411,000 411,511,000 400,897,000 408,037,000 403,923,000 387,003,000 376,447,000 383,191,000 397,259,000 396,334,000 391,344,000 393,918,000 390,891,000 380,898,000 373,823,000 376,119,000 366,818,000 351,771,000 337,572,000 338,386,000 328,829,000 314,040,000 301,433,000 302,220,000 290,030,000 284,498,000 281,473,000 280,773,000 278,918,000 244,377,000 241,351,000 244,266,000 243,300,000 238,060,000 234,324,000 236,453,000 233,870,000 227,129,000 225,264,000 227,494,000 224,132,000 219,155,000 216,942,000 219,568,000 214,632,000 207,028,000 205,693,000 207,888,000 208,351,000 203,417,000 202,079,000 204,744,000 203,547,000 198,302,000 195,038,000 195,331,000 194,377,000 189,192,000 186,612,000 186,876,000 172,208,000 166,100,000 148,763,000 
        accumulated other comprehensive income
      1,467,000 1,467,000 1,960,000 1,960,000 1,960,000 1,960,000 1,349,000 1,349,000 1,349,000 1,791,000 1,896,000 1,578,000 1,570,000 1,477,000 -765,000 -592,000 -344,000  -931,000 -919,000 -1,026,000 -1,064,000 78,000 1,000 -9,000 126,000        2,203,000 1,776,000 1,696,000 1,640,000 1,524,000 1,418,000 1,586,000 2,841,000 2,311,000 2,135,000 2,247,000 2,502,000 2,517,000 2,184,000 2,454,000 3,585,000 3,387,000 2,759,000 2,574,000 2,664,000 2,310,000 2,362,000 2,322,000 2,263,000 2,274,000 2,149,000 2,376,000 2,348,000 2,359,000 10,579,000 12,460,000 13,699,000 13,187,000 14,562,000 13,200,000 16,457,000 19,423,000 14,277,000 10,558,000 14,050,000 13,316,000 14,270,000 13,629,000 14,167,000 15,517,000 9,592,000 8,820,000 9,566,000 
        total stockholders’ equity
      1,834,082,000 1,540,771,000 1,523,663,000 1,465,971,000 1,397,337,000 1,366,974,000 1,333,805,000 1,274,608,000 1,240,251,000 1,233,397,000 1,220,253,000 1,182,716,000 1,152,485,000 1,110,868,000 1,049,347,000 1,029,845,000 1,028,418,000 1,034,519,000 1,000,711,000 989,679,000 978,296,000 917,160,000 913,061,000 895,131,000 883,541,000 889,984,000 896,664,000 893,995,000 888,293,000 889,312,000 474,957,000 465,294,000 457,830,000 463,209,000 452,471,000 436,110,000 421,400,000 421,646,000                                            
        long-term debt, less current portion
      1,865,513,000 1,866,819,000 1,756,955,000 1,692,212,000 1,691,475,000 1,706,904,000 1,673,715,000 1,549,587,000 1,550,298,000 1,526,699,000 1,533,769,000 1,519,281,000 1,520,362,000 1,491,965,000 1,453,748,000 1,455,709,000 1,491,556,000 1,492,935,000 1,420,032,000 1,372,126,000 1,303,028,000 1,287,580,000 1,307,612,000 1,315,979,000 1,316,996,000 1,283,597,000 511,076,000 510,859,000 510,903,000 431,424,000 431,341,000 431,258,000 431,175,000 431,092,000 431,009,000 430,926,000 433,388,000 433,335,000 364,229,000 364,172,000 365,823,000 380,825,000 380,951,000 384,038,000 384,189,000 384,365,000 384,514,000 334,684,000 334,876,000 334,997,000 335,143,000 335,300,000 335,436,000 335,598,000 335,779,000 335,886,000 343,617,000 343,848,000 344,502,000 344,811,000 295,059,000 295,704,000 295,990,000 296,295,000 246,575,000 246,879,000 246,013,000 246,221,000 226,407,000 216,613,000 216,773,000 217,033,000 217,186,000 216,312,000 196,461,000 196,690,000 196,836,000 163,648,000 148,692,000 148,925,000 143,604,000 
        total capitalization
      3,699,595,000 3,407,590,000 3,280,618,000 3,158,183,000 3,088,812,000 3,073,878,000 3,007,520,000 2,824,195,000 2,790,549,000 2,760,096,000                                                                     356,179,000 349,514,000 326,212,000 
        current liabilities:
                                                                                       
        lines of credit
      5,000 86,834,000 126,368,000 160,840,000 152,590,000 119,124,000 93,235,000 217,495,000 210,748,000 171,500,000 128,433,000 83,310,000 72,433,000 159,578,000    62,996,000    175,094,000    117,209,000    100,000,000    25,000,000    14,200,000                                            
        current portion of long-term debt
      8,628,000 23,504,000 18,010,000 18,923,000 18,665,000 3,648,000 8,088,000 9,023,000 9,002,000 48,975,000 43,464,000 44,328,000 44,274,000 4,360,000 4,340,000 38,966,000 38,919,000 39,106,000 26,288,000 26,270,000 76,285,000 76,241,000 71,943,000 22,354,000 22,311,000 22,272,000           127,000 125,000 11,554,000 11,621,000 14,781,000 3,491,000 3,563,000 597,000 613,000 584,000 624,000 569,000 537,000 554,000 589,000 540,000 579,000 5,392,000 5,410,000 8,340,000 828,000 838,000 1,154,000 1,119,000 1,149,000 1,133,000 1,144,000 1,108,000 1,116,000 1,081,000 781,000 728,000 736,000 705,000 758,000 643,000 675,000 622,000 654,000 613,000 644,000 485,000 494,000 389,000 208,000 
        accrued groundwater extraction charges, purchased water and power
      27,931,000 29,321,000 42,457,000 38,310,000 23,312,000 25,118,000 38,433,000 32,581,000 17,205,000 24,479,000 33,170,000 23,006,000 11,739,000 19,707,000 27,694,000 24,798,000 19,340,000 17,200,000 29,030,000 26,290,000 18,144,000 19,184,000 27,607,000 26,614,000 12,919,000 17,211,000 22,749,000 17,625,000 6,971,000 13,694,000 22,856,000 18,555,000 11,692,000 14,382,000 21,696,000 18,222,000 10,392,000 10,846,000 13,697,000 10,716,000 5,771,000 7,163,000 11,290,000                                       
        accounts payable
      62,880,000 75,427,000 61,238,000 48,231,000 46,654,000 56,256,000 44,480,000 37,932,000 34,397,000 46,121,000 35,926,000 36,446,000 25,974,000 29,581,000 29,765,000 26,580,000 28,367,000 30,391,000 37,410,000 39,546,000 25,636,000 34,200,000 33,759,000 24,295,000 25,214,000 34,886,000 28,193,000 28,253,000 22,819,000 24,937,000 26,956,000 26,183,000 22,482,000 22,960,000 30,658,000 27,060,000 20,723,000 18,739,000 21,673,000 23,768,000 19,116,000 16,196,000 17,523,000 13,037,000 11,776,000 7,001,000 12,311,000 12,589,000 10,702,000 12,587,000 11,831,000 15,906,000 10,908,000 8,481,000 17,566,000 14,302,000 10,798,000 7,417,000 6,687,000 9,765,000 10,609,000 5,487,000 21,273,000 17,965,000 10,595,000 6,562,000 9,125,000 10,350,000 7,670,000 5,758,000 8,426,000 6,194,000 6,697,000 9,268,000 7,978,000 5,082,000 4,351,000 7,267,000 9,374,000 3,377,000 4,341,000 
        accrued interest
      22,904,000 18,241,000 18,319,000 16,126,000 20,230,000 17,476,000 19,549,000 15,582,000 19,056,000 15,816,000 19,165,000 15,680,000 19,071,000 13,907,000 17,905,000 14,615,000 18,500,000 14,174,000 17,642,000 13,035,000 17,102,000 12,861,000 17,586,000 12,390,000 18,516,000 13,140,000 9,220,000 7,972,000 7,380,000 7,132,000 7,402,000 6,968,000 7,400,000 6,869,000 7,247,000 6,823,000 6,729,000 6,309,000 5,775,000 6,200,000 5,773,000 6,193,000 5,747,000 6,191,000 5,750,000 6,361,000 5,914,000 5,368,000 5,543,000 5,369,000 5,552,000 5,342,000 5,571,000 5,355,000 5,534,000 5,359,000 5,540,000 5,376,000 5,440,000 5,263,000 4,897,000 5,244,000 4,788,000 5,129,000 4,007,000 4,979,000 3,951,000 4,984,000 3,493,000 4,567,000 3,431,000 4,567,000 3,349,000 4,522,000 3,004,000 4,372,000 2,827,000 3,871,000 2,429,000 3,718,000 2,203,000 
        accrued payroll
      11,608,000 19,109,000 13,596,000 11,579,000 9,817,000 15,193,000 12,180,000 10,683,000 8,818,000 12,229,000 11,264,000 10,011,000 9,076,000 11,908,000 11,524,000 9,814,000 8,746,000 11,583,000 13,231,000 13,895,000 11,911,000 14,012,000 10,599,000 12,064,000 9,105,000 11,570,000 5,011,000 5,573,000 3,652,000 7,181,000 4,568,000 4,837,000 3,620,000 6,011,000 3,695,000 4,540,000 3,047,000 4,696,000 3,889,000 4,440,000 4,351,000 4,203,000 4,246,000 3,440,000 3,474,000 3,755,000 3,822,000 3,105,000 3,249,000 3,198,000 3,643,000 2,971,000 3,038,000 3,069,000 3,366,000 2,813,000 2,924,000 2,744,000 3,370,000 3,769,000 2,825,000 2,720,000 3,083,000 3,479,000 2,604,000 2,412,000 2,889,000 3,310,000 2,379,000 3,325,000 2,707,000 2,847,000 2,200,000 2,583,000 1,148,000 1,267,000 674,000 1,432,000 1,909,000 1,904,000 1,435,000 
        other current liabilities
      26,092,000 20,942,000 24,172,000 20,223,000 24,838,000 23,236,000 26,314,000 22,848,000 21,554,000 20,795,000 24,885,000 20,569,000 25,790,000 22,913,000 24,453,000 20,633,000 27,984,000 27,821,000 21,612,000 16,608,000 19,148,000 19,203,000 18,101,000 13,578,000 15,392,000 16,240,000 12,914,000 11,593,000 9,211,000 9,115,000 8,502,000 8,037,000 8,386,000 7,926,000 8,570,000 7,397,000 7,203,000 6,977,000 7,417,000 6,585,000 5,793,000 6,155,000 6,319,000 6,134,000 5,977,000 6,156,000 6,118,000 5,584,000 5,302,000 5,688,000 6,057,000 8,803,000 8,046,000 4,973,000 4,894,000 4,417,000 4,138,000 4,403,000 4,421,000 4,265,000 4,040,000 4,429,000 4,772,000 4,300,000 4,255,000 4,661,000 4,254,000 3,894,000 3,584,000 3,894,000 4,157,000 4,307,000 3,448,000 4,059,000 3,793,000 3,674,000 3,120,000 3,729,000 4,107,000 3,735,000 2,712,000 
        total current liabilities
      160,048,000 273,378,000 304,163,000 314,234,000 296,679,000 261,173,000 244,049,000 350,133,000 323,260,000 342,974,000                                                                     60,228,000 50,232,000 18,301,000 
        deferred income taxes
      311,899,000 307,893,000 302,959,000 286,031,000 280,132,000 276,043,000 268,370,000 240,903,000 239,960,000 238,528,000 234,558,000 228,976,000 220,111,000 218,155,000 208,130,000 203,561,000 203,186,000 200,451,000 193,366,000 191,376,000 189,531,000 191,415,000 186,952,000 195,116,000 194,823,000 195,598,000 72,798,000 76,983,000 78,426,000 79,651,000 80,901,000 84,064,000 84,442,000 85,795,000 206,343,000 206,503,000 207,016,000 205,203,000 214,633,000 208,407,000 200,317,000 198,775,000 189,503,000 187,310,000 186,232,000 185,506,000 157,820,000 140,071,000 140,820,000 140,736,000 157,593,000 151,628,000 147,779,000 147,579,000 141,795,000 136,666,000 133,820,000 133,541,000 117,843,000 110,430,000 109,753,000 106,406,000 99,271,000 101,119,000 101,697,000 100,766,000 100,564,000 97,003,000 96,190,000 97,038,000 79,751,000 75,709,000 74,924,000 74,643,000 78,695,000 78,607,000 80,308,000 81,552,000 51,794,000 51,545,000 48,004,000 
        advances for construction
      210,813,000 201,413,000 183,892,000 172,612,000 162,334,000 155,397,000 150,546,000 144,087,000 141,431,000 146,582,000 143,810,000 140,005,000 137,668,000 137,696,000 140,842,000 138,430,000 137,436,000 130,693,000 132,228,000 128,855,000 125,967,000 125,027,000 123,043,000 120,808,000 117,596,000 112,339,000 84,564,000 83,454,000 83,686,000 80,610,000 80,124,000 80,993,000 82,611,000 83,695,000 84,496,000 87,223,000 85,328,000 84,815,000 81,027,000 80,048,000 79,142,000 76,572,000 77,126,000 76,198,000 74,111,000 73,303,000 71,830,000 71,008,000 71,551,000 70,043,000 70,690,000 68,882,000 67,748,000 68,277,000 67,026,000 65,630,000 66,057,000 67,333,000 67,499,000 68,480,000 67,489,000 68,352,000 69,353,000 68,396,000 68,879,000 69,086,000 70,819,000 71,873,000 73,140,000 74,787,000 74,781,000 75,359,000 76,654,000 74,518,000 74,677,000 73,295,000 70,370,000 67,955,000 69,668,000 67,704,000 66,992,000 
        contributions in aid of construction
      342,410,000 342,697,000 343,295,000 339,949,000 340,395,000 340,738,000 336,559,000 333,611,000 331,869,000 326,451,000 328,633,000 327,280,000 327,016,000 323,668,000 319,866,000 319,564,000 317,494,000 316,479,000 305,487,000 302,503,000 297,390,000 296,105,000 291,482,000 288,317,000 287,802,000 286,035,000 170,390,000 168,515,000 167,668,000 168,243,000 167,769,000 164,122,000 162,443,000 160,830,000 157,448,000 154,441,000 153,233,000 151,576,000 147,576,000 146,526,000 145,701,000 141,194,000 139,659,000 139,086,000 138,195,000 138,502,000 135,080,000 134,909,000 132,399,000 132,260,000 130,391,000 128,783,000 128,645,000 128,466,000 125,205,000 125,168,000 124,446,000 123,335,000 123,051,000 121,382,000 121,603,000 121,803,000 121,547,000 122,026,000 121,909,000 121,420,000 120,338,000 118,053,000 116,550,000 114,082,000 107,591,000 103,722,000 101,136,000 100,649,000 97,670,000 97,242,000 96,033,000 95,225,000 92,610,000 90,875,000 79,436,000 
        regulatory liabilities, less current portion
      556,379,000 546,797,000 528,206,000 508,980,000 493,957,000 483,719,000 473,899,000 475,293,000 469,953,000 461,108,000                                                                        
        other noncurrent liabilities
      26,311,000 23,920,000 23,257,000 22,904,000 22,888,000 22,298,000 23,201,000 23,689,000 23,167,000 22,492,000 23,139,000 22,945,000 25,977,000 25,884,000 24,451,000 24,049,000 23,864,000 24,049,000 25,627,000 24,958,000 23,930,000 21,786,000 25,037,000 22,677,000 23,864,000 22,306,000 12,643,000 12,453,000 12,137,000 13,525,000 13,569,000 12,971,000 13,073,000 13,011,000 12,853,000 12,759,000 12,540,000 13,051,000 11,073,000 11,002,000 10,180,000 9,961,000 8,943,000 5,978,000 5,883,000 5,954,000 5,540,000 5,433,000 5,410,000 5,496,000 6,587,000 7,964,000 7,980,000 7,872,000 7,670,000 7,514,000 7,429,000 7,041,000 6,067,000 6,176,000 6,076,000 6,042,000 5,488,000 5,752,000 5,492,000 5,331,000 5,676,000 5,542,000 5,476,000 5,455,000 5,191,000 5,125,000 4,860,000 4,911,000 4,246,000 4,287,000 3,413,000 2,701,000 3,444,000 2,943,000 1,242,000 
        commitments and contingencies
                                                                                       
        total capitalization and liabilities
      5,353,304,000 5,149,566,000 5,010,654,000 4,846,926,000 4,728,810,000 4,658,309,000 4,552,302,000 4,439,427,000 4,367,512,000 4,345,067,000                                                                        
        customers, net of allowances for uncollectible accounts of 722 and 1,172 in 2025 and 2024, respectively
       62,471,000                                                                                
        current regulatory liabilities
        3,000 2,000 573,000 1,122,000 1,770,000 1,930,000 2,480,000 3,059,000                                                                        
        less: accumulated depreciation
        101,000 99,000 99,000                                                                             
        customers, net of allowances for credit losses of 1,050 and 1,172 on september 30, 2025 and december 31, 2024, respectively
        86,008,000                                                                               
        customers, net of allowances for credit losses of 994 and 1,172 on june 30, 2025 and december 31, 2024, respectively
         76,758,000                                                                              
        customers, net of allowances for credit losses of 1,149 and 1,172 on march 31, 2025 and december 31, 2024, respectively
          65,854,000                                                                             
        less accumulated depreciation and amortization
           1,036,450,000  1,030,065,000 1,007,078,000 981,598,000 1,305,134,000 1,277,102,000 1,250,101,000 1,223,760,000 1,206,690,000 1,183,159,000 1,160,758,000 1,136,116,000 1,114,123,000 1,092,337,000 1,068,852,000 1,045,136,000 1,023,677,000 1,004,776,000 983,481,000 962,019,000 647,841,000 635,005,000 620,288,000 607,090,000 593,916,000 579,572,000 566,844,000 553,059,000 542,890,000 535,346,000 532,841,000 520,018,000 517,314,000 509,244,000 498,798,000 487,659,000 478,606,000 469,236,000 458,538,000 450,137,000 442,429,000 433,841,000 424,786,000 415,453,000 408,888,000 400,494,000 391,989,000 384,675,000 378,960,000 371,496,000 364,526,000 355,914,000 345,235,000 336,866,000 329,597,000 322,102,000 315,815,000 309,914,000 305,763,000 298,921,000 292,215,000 285,693,000 279,503,000 272,562,000 267,256,000 265,194,000 259,489,000 255,025,000 251,836,000 245,930,000 240,243,000 234,173,000 231,641,000 225,680,000 194,618,000 
        nonutility properties and real estate investments
           1,314,000 1,352,000 13,376,000 13,377,000 13,350,000 13,072,000                                                                       
        net nonutility properties and real estate investments
           1,216,000 1,255,000 13,280,000 13,182,000 13,156,000 12,880,000                                                                       
        customers, net of allowances for uncollectible accounts of 1,172 and 6,551 in 2024 and 2023, respectively
           68,679,000                                                                            
        assets held for sale
              40,850,000 40,850,000 40,850,000 40,850,000 40,850,000                                                                     
        other intangible asset
             28,386,000 28,386,000 28,386,000 28,386,000                                                                       
        customers, net of allowances for uncollectible accounts of 848 and 6,551 on september 30, 2024 and december 31, 2023, respectively
            75,849,000                                                                           
        accrued unbilled utility revenue
            68,342,000 57,822,000 44,345,000  62,253,000 50,555,000 40,437,000 45,722,000 53,682,000 47,824,000 39,506,000 44,026,000 52,631,000 48,984,000 37,288,000 44,950,000 57,418,000 55,398,000 36,996,000 40,102,000 38,200,000 32,800,000 22,304,000 27,974,000 38,097,000 32,950,000 22,608,000 27,905,000 38,055,000 31,132,000 19,526,000 24,255,000 32,669,000 24,575,000 16,745,000 17,417,000 23,050,000 18,962,000 16,090,000 18,074,000 22,593,000 19,646,000 14,027,000 17,556,000 23,304,000 21,917,000 14,019,000 16,284,000 24,418,000 20,929,000 13,667,000 15,318,000 20,842,000 17,718,000 13,108,000 12,717,000 19,197,000 16,577,000 10,607,000 12,435,000 18,598,000 16,630,000 10,273,000 12,896,000 20,251,000 18,265,000 11,580,000 12,654,000 18,711,000 17,907,000 10,817,000 11,067,000    
        customers, net of allowances for uncollectible accounts of 802 and 6,551 on june 30, 2024 and december 31, 2023, respectively
             70,238,000                                                                          
        income tax payable
             2,059,000   11,809,000 4,604,000 4,608,000 2,696,000 3,859,000 1,087,000    246,000         1,476,000  1,340,000    1,917,000 2,407,000            170,000   396,000  53,000  810,000        3,437,000 1,911,000                  
        customers, net of allowances for uncollectible accounts of 6,198 and 6,551 on march 31, 2024 and december 31, 2023, respectively
              62,649,000                                                                         
        customers, net of allowances for uncollectible accounts of 6,551 and 5,753 in 2023 and 2022, respectively
               67,870,000                                                                        
        construction in progress
                113,204,000 141,179,000 121,309,000 116,851,000 127,528,000 192,580,000 180,961,000 176,427,000 163,262,000 145,039,000 126,678,000 109,976,000 117,546,000 144,429,000 126,365,000 112,232,000 109,245,000 100,350,000 80,262,000 68,765,000 79,475,000 68,153,000 54,933,000 45,851,000 111,935,000 110,396,000 88,369,000 70,453,000 65,101,000 64,373,000 58,643,000 45,573,000 42,717,000 34,694,000 29,221,000 23,208,000 34,319,000 36,817,000 35,335,000 30,846,000 26,968,000 24,855,000 25,517,000 24,298,000 27,013,000 25,532,000 24,177,000 18,527,000 24,684,000 17,912,000 14,501,000 10,103,000 20,243,000 24,807,000 20,105,000 11,119,000 16,013,000 15,380,000 10,955,000 7,142,000 15,655,000 11,208,000 23,572,000 24,298,000 14,748,000 15,864,000 13,924,000 10,863,000 18,584,000 14,988,000 7,150,000 
        customers, net of allowances for uncollectible accounts of 6,661 and 5,753 on september 30, 2023 and december 31, 2022, respectively
                70,374,000                                                                       
        net regulatory assets, less current portion
                131,420,000 130,009,000 127,339,000 127,275,000 145,945,000 139,312,000 147,566,000 151,992,000 178,861,000 172,312,000 161,392,000 156,482,000 132,216,000 132,539,000 126,149,000 113,945,000 73,780,000 81,746,000 79,185,000 76,715,000 104,670,000 98,332,000 97,293,000 99,554,000 140,911,000 147,132,000 139,387,000 135,709,000 133,663,000 151,619,000 150,563,000 152,021,000 153,929,000 153,718,000 157,449,000 158,010,000 109,537,000                                   
        other assets: - sum
                836,827,000 806,369,000 803,301,000 806,718,000 812,766,000 806,793,000 815,276,000 819,130,000 827,296,000 823,243,000 810,399,000 805,876,000 779,726,000 781,749,000 776,480,000 759,836,000 78,713,000 86,580,000 83,804,000 80,837,000 108,933,000 104,275,000 103,096,000 106,798,000 152,484,000 158,433,000 150,778,000 146,943,000 144,818,000 163,039,000 165,242,000 169,340,000 171,078,000 171,069,000 175,437,000 175,996,000 127,132,000 102,916,000 103,934,000 103,777,000 153,192,000 151,147,000 150,122,000 147,841,000 135,852,000 135,335,000 134,901,000 135,140,000 103,551,000 103,477,000 102,821,000 102,439,000 117,789,000 125,499,000 125,961,000 124,547,000 121,938,000 119,595,000 125,423,000 130,246,000 91,275,000 84,999,000 91,550,000 90,255,000 97,412,000 95,782,000 97,256,000 99,578,000    
        current liabilities: - sum
                308,116,000 237,954,000 212,965,000 264,650,000 318,710,000 277,829,000 217,853,000 203,271,000 267,285,000 274,431,000 289,735,000 350,795,000 305,398,000 257,966,000 238,404,000 234,567,000 144,307,000 127,058,000 86,688,000 163,985,000 151,680,000 124,551,000 95,360,000 85,052,000 93,418,000 70,396,000 50,780,000 63,573,000 151,127,000 120,082,000 97,815,000 79,623,000 73,045,000 59,037,000 48,652,000 44,694,000 51,753,000 92,057,000 71,926,000 59,195,000 49,748,000 45,185,000 59,148,000 49,107,000 50,910,000 45,918,000 31,970,000 28,288,000 38,693,000 39,364,000 41,071,000 29,155,000 53,163,000 55,014,000 42,967,000 31,958,000 37,324,000 37,003,000 40,657,000 43,323,000 51,799,000 45,017,000 34,197,000 32,954,000 41,063,000 34,546,000 19,834,000 37,246,000    
        real estate investments and nonutility properties
                 1,388,000 1,388,000 58,033,000 58,012,000 58,234,000 57,673,000                                                                 
        net real estate investments and nonutility properties
                 1,197,000 1,198,000                                                                     
        customers, net of allowances for uncollectible accounts of 6,414 and 5,753 on june 30, 2023 and december 31, 2022, respectively
                 58,545,000                                                                      
        cash and cash equivalents:
                                                                                       
        cash
                  23,333,000 12,344,000 13,190,000 12,049,000 17,487,000 10,908,000 14,019,000 25,442,000 11,406,000 5,269,000 20,211,000 23,317,000 28,273,000 12,944,000 12,702,000 9,849,000 7,663,000 8,722,000                                                    
        customers, net of allowances for uncollectible accounts of 5,851 and 5,753 on march 31, 2023 and december 31, 2022, respectively
                  56,468,000                                                                     
        utility plant: - sum
                   3,854,077,000 3,799,571,000 3,736,940,000 3,678,001,000 3,633,615,000 3,557,945,000 3,488,732,000 3,423,920,000 3,380,048,000 3,305,171,000 3,243,635,000 3,208,426,000 3,168,505,000 2,040,447,000 2,004,608,000 1,963,125,000 1,935,911,000 1,897,177,000 1,857,639,000 1,821,780,000 1,792,323,000 1,769,475,000 1,729,526,000 1,698,180,000 1,666,381,000 1,642,783,000 1,601,836,000 1,565,217,000 1,524,422,000 1,492,241,000 1,462,490,000 1,435,904,000 1,413,151,000 1,392,284,000 1,367,953,000 1,340,662,000 1,314,191,000 1,287,661,000 1,263,160,000 1,239,496,000 1,216,235,000 1,191,445,000 1,160,051,000 1,134,591,000 1,112,127,000 1,086,746,000 1,070,526,000 1,055,704,000 1,036,909,000 1,027,934,000 992,974,000 964,184,000 944,026,000 930,449,000 913,277,000 897,019,000 878,743,000 858,584,000 845,684,000 830,840,000 816,310,000 792,705,000 772,907,000 753,558,000 740,419,000    
        restricted cash
                     602,000 602,000 1,211,000 2,202,000 2,659,000 3,104,000 4,000,000              8,000 8,000 19,001,000                         148,000 27,733,000                  
        customers, net of allowances for uncollectible accounts of 5,753 and 4,600 in 2022 and 2021, respectively
                   59,172,000                                                                    
        customers, net of allowances for uncollectible accounts of 5,665 and 4,600 on september 30, 2022 and december 31, 2021, respectively
                    63,760,000                                                                   
        line of credit
                    199,170,000 141,336,000 75,997,000  122,072,000 138,541,000 121,509,000  125,803,000 146,671,000 131,402,000  62,000,000 55,000,000 32,000,000  76,000,000 59,000,000 39,000,000  13,000,000    63,900,000 55,925,000 39,500,000 34,600,000 21,200,000 20,200,000 11,700,000 13,200,000 8,200,000 52,000,000 37,000,000 22,400,000 7,000,000  22,100,000 15,300,000     5,500,000 6,800,000 11,500,000 4,000,000 3,500,000 11,850,000 14,350,000 5,800,000 4,300,000 3,000,000 16,700,000 18,400,000 18,900,000 15,500,000 10,000,000 5,000,000 7,500,000 3,500,000  15,500,000 28,000,000 23,000,000  
        customers, net of allowances for uncollectible accounts of 5,222 and 4,600 on june 30, 2022 and december 31, 2021, respectively
                     58,815,000                                                                  
        customers, net of allowances for uncollectible accounts of 5,113 and 4,600 on march 31, 2022 and december 31, 2021, respectively
                      53,942,000                                                                 
        real estate investments and nonutilty properties
                       57,632,000                                                                
        customers, net of allowances for uncollectible accounts of 4,600 and 3,891 in 2021 and 2020, respectively
                       53,699,000                                                                
        accumulated other comprehensive
                       -163,000                                                                
        real estate investments
                        58,765,000 58,389,000 58,280,000 58,129,000 58,085,000 58,023,000 57,954,000 57,699,000 56,473,000 56,473,000 56,336,000 56,336,000 56,336,000 56,336,000 56,213,000 56,213,000 56,224,000 56,226,000 56,170,000 62,193,000 62,127,000 62,082,000 74,888,000 74,641,000 74,546,000 73,893,000 73,852,000 73,794,000 73,790,000 73,794,000 73,783,000  78,788,000 78,268,000 76,347,000  73,604,000 83,486,000 89,099,000                         
        customers, net of allowances for uncollectible accounts of 4,272 and 3,891 on september 30, 2021 and december 31, 2020, respectively
                        58,725,000                                                               
        customers, net of allowances for uncollectible accounts of 3,866 and 3,891 on june 30, 2021 and december 31, 2020, respectively
                         50,825,000                                                              
        regulatory liabilities
                                                                                       
        customers, net of allowances for uncollectible accounts of 3,614 and 3,891 on march 31, 2021 and december 31, 2020, respectively
                          45,583,000                                                             
        customers, net of allowances for uncollectible accounts of 3,891 and 1,512 in 2020 and 2019, respectively
                           46,832,000                                                            
        customers, net of allowances for uncollectible accounts
                            51,374,000 44,880,000 34,710,000  27,965,000 24,350,000 17,894,000  22,595,000 21,703,000 18,326,000  23,297,000 19,643,000 15,288,000  21,429,000 17,262,000 13,799,000  20,255,000 17,629,000 17,574,000  18,077,000 17,157,000 14,396,000  18,653,000 18,097,000 13,559,000  17,573,000 15,291,000 12,625,000  16,921,000 15,368,000 9,154,000  16,447,000 13,758,000 10,765,000  15,974,000 14,611,000 11,458,000  15,425,000 14,391,000 10,762,000  13,915,000 11,468,000 9,304,000 9,861,000 13,952,000 9,973,000 7,625,000 
        accrued property taxes and other non-income taxes
                              3,545,000 2,039,000 4,220,000 1,042,000 3,179,000 1,926,000 4,056,000 971,000 2,780,000 1,904,000 3,635,000 947,000 2,559,000 1,681,000 3,222,000 827,000 2,730,000 1,622,000 3,157,000 839,000 2,635,000 1,607,000 3,123,000 774,000 2,458,000 1,618,000 2,980,000 824,000 2,234,000 1,465,000 2,620,000 732,000 2,108,000 1,298,000 2,533,000 772,000 1,876,000 1,288,000 2,225,000 725,000                  
        restricted fund
                               5,000,000                                                        
        money market fund
                                412,000,000 412,000,000 412,000,000 412,000,000                                                    
        customers, net of allowances for uncollectible accounts of 1,512 and 272 in 2019 and 2018, respectively
                               36,305,000                                                        
        regulatory liability
                                56,936,000 57,901,000 58,793,000 59,149,000 60,650,000 61,639,000 62,205,000 62,476,000         6,413,000                                       
        customers, net of allowances for uncollectible accounts of 272 and 190 in 2018 and 2017, respectively
                                   19,154,000                                                    
        investment in california water service group
                                     3,207,000 3,067,000 4,535,000 3,815,000 3,680,000 3,585,000 3,390,000 3,209,000 3,493,000 6,925,000 6,030,000 5,732,000 5,922,000 6,352,000 6,378,000 5,815,000 6,271,000 9,220,000 8,885,000 7,826,000 7,514,000 7,664,000 7,067,000 7,182,000 7,113,000 7,013,000 7,032,000 6,820,000 7,206,000 7,158,000 7,177,000 32,399,000 39,268,000 41,369,000 40,500,000 42,832,000 40,522,000 46,044,000 51,071,000 42,348,000 36,045,000 41,963,000 40,720,000 42,337,000 41,237,000 42,150,000 44,438,000 40,621,000 39,312,000 36,705,000 
        customers, net of allowances for uncollectible accounts of 190 and 200 in 2017 and 2016, respectively
                                       17,305,000                                                
        non-refundable deposit
                                        3,000,000 3,000,000                                              
        long-lived asset held-for-sale
                                          4,276,000  9,907,000                                           
        customers, net of allowances for uncollectible accounts of 200 in 2016 and 2015
                                           16,361,000                                            
        shareholders' equity:
                                                                                       
        common stock
                                            10,655,000 10,648,000 10,639,000 10,616,000 10,616,000 10,606,000 10,595,000 10,567,000 10,541,000 10,531,000 10,523,000 10,505,000 10,501,000 10,489,000 9,739,000 9,724,000 9,715,000 9,707,000 9,698,000 9,684,000 9,683,000 9,676,000 9,675,000 9,662,000 9,657,000 9,650,000 9,650,000 9,635,000 9,635,000 9,628,000 9,624,000 9,611,000 9,597,000 9,592,000 9,574,000 9,564,000 9,563,000 9,549,000 9,538,000 9,522,000 9,521,000 9,516,000 9,516,000 
        total shareholders' equity
                                            411,608,000 396,022,000 384,199,000 383,783,000 371,022,000 364,695,000 361,455,000 360,155,000 356,562,000 321,540,000 319,346,000 321,175,000                               182,608,000 
        deposit, long-lived asset held-for-sale
                                            20,000,000                                           
        long-lived assets held-for-sale
                                             9,907,000         4,028,000     7,768,000 7,768,000 4,608,000                       2,738,000 2,738,000  
        customers, net of allowances for uncollectible accounts of 200 and 150 in 2015 and 2014, respectively
                                               16,390,000                                        
        unamortized debt issuance, broker and reacquisition costs
                                               4,721,000 4,845,000 4,970,000 5,094,000 5,218,000 5,343,000 5,438,000 5,056,000 5,176,000 5,276,000 5,395,000 5,120,000 5,226,000 5,015,000 4,724,000 4,778,000 4,865,000    4,308,000                    
        materials and supplies
                                                 1,301,000 1,250,000 1,214,000 1,138,000 1,113,000 1,107,000 1,045,000 1,035,000 1,045,000 1,046,000 1,088,000 1,028,000 1,086,000 1,021,000 991,000 989,000 972,000 1,015,000 989,000 974,000 988,000 994,000 994,000 924,000 947,000 1,008,000 933,000 857,000 844,000 816,000 782,000 871,000 895,000 820,000 932,000 653,000 662,000 540,000 
        accrued groundwater extraction charges and purchased water
                                                 8,052,000 6,159,000 5,411,000 10,394,000 10,606,000 6,463,000 7,116,000 10,864,000 10,074,000 6,197,000 4,755,000 10,063,000 9,412,000 5,330,000 5,789,000 8,918,000 7,002,000 3,721,000 4,359,000 8,223,000 7,634,000 3,808,000 4,496,000 8,291,000 8,112,000 4,025,000 5,256,000 9,154,000 9,065,000 4,845,000 5,595,000 12,033,000 11,265,000 4,971,000     
        purchased power
                                                 547,000 568,000 619,000 1,247,000 1,292,000 672,000 665,000 836,000 725,000 422,000 317,000 647,000 543,000 304,000 423,000 670,000 609,000 454,000 495,000 718,000 913,000 626,000 486,000 1,511,000 1,300,000 338,000 563,000 900,000 1,499,000 386,000 514,000 1,601,000 1,002,000 419,000 301,000 880,000 1,042,000 825,000 
        unamortized investment tax credits
                                                 1,285,000 1,300,000 1,315,000 1,330,000 1,345,000 1,360,000 1,375,000 1,389,000 1,405,000 1,420,000 1,434,000 1,450,000 1,465,000 1,480,000 1,495,000 1,510,000 1,524,000 1,540,000 1,555,000 1,570,000 1,585,000 1,600,000 1,615,000 1,630,000 1,645,000 1,660,000 1,675,000 1,690,000 1,705,000 1,720,000 1,735,000 1,750,000 1,765,000 1,779,000 1,795,000 1,809,000 1,825,000 1,900,000 
        deferred revenue
                                                 1,402,000 1,328,000 1,323,000 1,346,000 1,312,000 1,244,000 1,213,000 1,225,000 1,224,000 1,163,000 1,137,000 1,121,000 1,098,000 1,071,000 1,070,000 1,076,000 1,076,000 1,066,000 1,100,000 1,106,000 1,117,000 1,149,000 1,179,000 1,212,000 1,234,000 1,230,000 1,247,000 1,250,000 1,270,000 1,293,000 1,313,000 1,339,000 1,296,000 1,270,000 1,262,000 1,269,000 1,279,000 1,278,000 
        customers, net of allowances for uncollectible accounts of 150 and 170 in 2014 and 2013, respectively
                                                   14,997,000                                    
        regulatory assets
                                                     84,831,000 83,220,000 83,543,000 134,024,000 132,299,000 131,496,000 130,488,000 119,248,000 119,248,000 119,248,000 119,248,000 87,721,000 87,721,000 87,721,000 87,721,000 78,274,000 78,274,000 78,760,000 78,525,000 74,000,000 73,518,000 73,499,000 73,778,000 43,776,000 44,088,000 44,712,000 44,712,000 49,581,000 49,882,000 50,483,000 50,483,000 13,119,000 13,119,000 8,174,000 
        real estate investment
                                                       78,477,000    74,232,000    89,099,000 89,108,000 89,055,000 88,962,000 88,943,000 91,286,000 88,000,000 88,000,000 88,000,000 88,000,000 88,000,000 88,000,000 88,000,000 89,302,000 88,029,000 88,029,000 88,029,000        
        customers, net of allowances for uncollectible accounts of 170 and 225 in 2013 and 2012, respectively
                                                       14,496,000                                
        shareholders’ equity:
                                                                                       
        total shareholders’ equity
                                                        319,337,000 313,271,000 273,457,000 274,604,000 271,655,000 264,380,000 262,217,000 264,004,000 260,368,000 255,148,000 252,773,000 255,032,000 257,967,000 251,784,000 251,506,000 252,756,000 254,407,000 247,603,000 249,272,000 254,326,000 247,558,000 238,190,000 237,998,000 236,934,000 236,784,000 230,150,000 227,707,000 228,182,000 207,487,000 200,589,000  
        other current asset
                                                          813,000  1,556,000 3,883,000 5,021,000 5,739,000                        
        customers, net of allowances for uncollectible accounts of 225 in 2012 and 2011
                                                           12,317,000                            
        customers, net of allowances for uncollectible accounts of 225 in 2011 and 235 in 2010
                                                               12,541,000                        
        debt issuance costs and broker fees, net of accumulated amortization
                                                                4,952,000 4,893,000 4,479,000  4,112,000 3,783,000                  
        customers, net of allowances for uncollectible accounts of 235 in 2010 and 285 in 2009
                                                                   12,491,000                    
        debt issuance costs, net of accumulated amortization
                                                                      3,049,000  3,147,000 3,195,000 3,123,000             
        accrued taxes
                                                                      1,606,000 1,481,000 2,222,000 1,325,000 1,732,000 855,000 3,366,000 395,000 2,597,000 791,000 2,863,000 3,312,000 2,409,000  5,181,000 5,127,000 2,710,000 
        customers, net of allowances for uncollectible accounts of 285 in 2009 and 279 in 2008
                                                                       10,892,000                
        unamortized debt issuance and reacquisition costs
                                                                       3,098,000    3,162,000 3,209,000 3,257,000 3,302,000 3,345,000 3,264,000 3,310,000 3,356,000 3,220,000 3,007,000 3,050,000 3,259,000 
        customers, net of allowances for uncollectible accounts of 279 in 2008 and 196 in 2007
                                                                           11,622,000            
        capitalization and liabilities capitalization:
                                                                                       
        customers, net of allowances for uncollectible accounts of 196 in 2007 and 177 in 2006
                                                                               10,390,000        
        sale proceeds held in trust account
                                                                                   31,261,000    
        nonutility property
                                                                                88,010,000 88,010,000 91,721,000 43,868,000 48,040,000 48,050,000 35,158,000 
        work order deposit
                                                                                489,000 459,000 419,000 417,000 430,000 860,000 694,000 
        intangible pension asset
                                                                                    3,953,000 3,953,000 4,357,000 
        accrued pump taxes and purchased water
                                                                                   4,244,000  7,080,000 3,173,000 
        less accumulated depreciation
                                                                                    3,998,000 3,740,000  
        net nonutility property
                                                                                    44,042,000 44,310,000 31,818,000 
        cash and equivalents
                                                                                    2,896,000 2,562,000 13,639,000 
        unbilled utility revenue
                                                                                    18,054,000 15,816,000 6,634,000 
        accrued ground water extraction charges and purchased water
                                                                                    7,424,000   
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2026-03-31 2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-12-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2012-03-31 2011-12-31 2011-09-30 2011-06-30 2011-03-31 2010-12-31 2010-09-30 2010-06-30 2010-03-31 2009-12-31 2009-09-30 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-09-30 2007-06-30 2007-03-31 2006-12-31 2006-09-30 2006-06-30 2005-03-31 
                                                                                         
          operating activities:
                                                                                         
          net income
        19,013,000 16,220,000 45,132,000 24,675,000 16,551,000 22,920,000 38,652,000 20,696,000 11,699,000 18,949,000 36,222,000 18,286,000 11,530,000 33,499,000 25,034,000 11,558,000 3,737,000  19,068,000 20,775,000 2,616,000  26,093,000 19,721,000 2,417,000    5,873,000    1,285,000    3,671,000 13,727,000 18,959,000 16,775,000 3,378,000 16,192,000 9,534,000 7,461,000 4,695,000 5,688,000 38,366,000 6,846,000 906,000 4,677,000 8,950,000 7,440,000 1,317,000 5,924,000 10,084,000 5,201,000 1,109,000 6,602,000 8,215,000 5,451,000 610,000 8,118,000 10,787,000 4,516,000 985,000 2,620,000 8,017,000 4,418,000 116,000 4,208,000 8,257,000 6,278,000 2,718,000 3,784,000 8,011,000 5,406,000 2,122,000 19,049,000 8,858,000 7,993,000 2,681,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                                         
          depreciation and amortization
        33,766,000 30,852,000 30,032,000 29,975,000 29,631,000 29,239,000 27,964,000 28,923,000 28,924,000 27,594,000 27,034,000 26,668,000 26,842,000 26,577,000 26,032,000 25,749,000 28,081,000 24,562,000 23,506,000 24,475,000 23,931,000 22,939,000 23,075,000 23,126,000 22,482,000 21,126,000 15,787,000 15,773,000 15,803,000 14,258,000 14,260,000 14,229,000 14,160,000 12,624,000 12,619,000 12,612,000 12,646,000 11,555,000 11,536,000 11,607,000 11,597,000 10,590,000 10,588,000 10,594,000 10,558,000 9,856,000 9,863,000 9,891,000 9,881,000 9,085,000 9,172,000 9,138,000 9,200,000 8,594,000 8,667,000 8,677,000 8,691,000 9,320,000 7,803,000 7,792,000 7,794,000 7,068,000 7,082,000 7,070,000 7,111,000 6,451,000 6,403,000 6,238,000 6,551,000 6,008,000 5,988,000 5,984,000 6,063,000 5,879,000 5,690,000 5,672,000 5,613,000 5,315,000 5,508,000 5,453,000 5,023,000 
          deferred income taxes
        3,120,000 -19,880,000 16,421,000 5,622,000 3,020,000 -16,787,000 25,864,000 629,000 649,000 -21,506,000 4,290,000 7,654,000 1,052,000 -10,379,000 4,896,000 -25,000 2,264,000 -6,991,000 3,237,000 1,665,000 -762,000 861,000 -5,381,000 -633,000 -344,000 5,965,000 -4,275,000 -1,925,000 -1,014,000 -4,041,000 -3,316,000 -746,000 -1,383,000 -1,719,000 -3,000 -309,000 1,595,000 -11,952,000 6,706,000 9,050,000 999,000 11,220,000 2,535,000 1,710,000 460,000 7,579,000 18,084,000 291,000 113,000 1,356,000 6,011,000 4,100,000 100,000 3,503,000 5,277,000 2,841,000 614,000 5,037,000 7,430,000 718,000 3,273,000 7,146,000 317,000 456,000 158,000 -809,000 2,600,000 3,188,000 1,326,000 1,015,000 4,028,000 770,000 266,000        -1,518,000 
          stock-based compensation
        1,212,000 1,782,000 1,988,000 1,464,000 1,210,000 1,244,000 1,566,000 1,275,000 1,538,000 1,071,000 1,238,000 1,139,000 1,199,000  1,398,000 1,041,000 1,552,000  1,130,000 791,000 1,280,000  1,058,000 1,009,000 251,000  952,000 718,000 886,000  504,000                                                  454,000 
          allowance for equity funds used during construction
        -1,597,000 -4,737,000 -677,000 11,000 -834,000 -612,000 -605,000 -617,000 -528,000 -465,000 -538,000 -931,000 -180,000 -227,000 -240,000 -574,000 -510,000 -436,000 -574,000 -514,000 -402,000                                                             
          changes in operating assets and liabilities, net of acquired assets and liabilities
                                                                                         
          accounts receivable and accrued unbilled utility revenue
        -742,000  -15,442,000 -20,630,000 5,355,000  -16,763,000 -21,656,000 11,910,000  -23,095,000 -11,864,000 8,177,000 14,289,000 -14,024,000 -12,798,000 4,311,000 13,716,000 -11,835,000 -15,537,000 7,725,000 15,573,000 -11,410,000 -28,579,000 5,498,000 16,693,000 -9,278,000 -17,368,000 6,093,000 13,187,000 -5,831,000 -13,889,000 4,530,000 16,633,000 -10,521,000 -13,829,000 6,015,000 13,921,000 -11,809,000 -11,213,000 3,724,000 10,605,000 -6,530,000 -2,930,000 -410,000 7,362,000 -3,513,000 -8,407,000 3,282,000 9,994,000 -1,356,000 -12,649,000 938,000 13,568,000 -5,645,000 -9,738,000 1,015,000 10,286,000 -4,986,000 -10,978,000 3,208,000 10,003,000 -5,292,000 -9,113,000 2,205,000 11,060,000 -3,284,000 -9,084,000 2,978,000    540,000   -9,285,000 835,000     
          accounts payable and other current liabilities
        -10,034,000 14,967,000 3,713,000 1,342,000 -10,742,000 6,512,000 -319,000 2,159,000 -4,111,000 -65,000 664,000 543,000 -650,000 87,000 -317,000 477,000 -1,635,000 1,146,000 3,144,000 4,272,000 -3,719,000 3,520,000 5,135,000 -257,000 -8,755,000 -2,220,000 3,336,000 374,000 456,000 -1,363,000 2,079,000 630,000 784,000 673,000 1,490,000 168,000 557,000 3,159,000 -2,484,000 692,000 -1,704,000 504,000 954,000 -75,000 167,000                                     
          accrued groundwater extraction charges, purchased water and power
        -1,390,000 -13,135,000 4,147,000 14,999,000 -1,807,000 -13,315,000 5,852,000 15,376,000 -7,274,000 -8,691,000 10,163,000 11,268,000 -7,968,000 -7,987,000 2,896,000 5,458,000 2,140,000 -11,830,000 2,740,000 8,146,000 -1,040,000 -8,423,000 993,000 13,695,000 -4,292,000 -6,202,000 5,124,000 10,654,000 -6,723,000 -9,162,000 4,301,000 6,863,000 -2,690,000 -7,314,000 3,474,000 7,830,000 -454,000 -2,851,000 2,981,000 4,945,000 -1,392,000 -4,127,000                                        
          tax receivable and payable, and other accrued taxes
        1,629,000 -12,668,000 -5,730,000 -4,844,000 4,962,000 -395,000 -21,577,000 -481,000 4,098,000 -23,105,000 4,057,000 -5,094,000 1,727,000  -1,829,000 -1,157,000 1,135,000  -1,815,000 -686,000 3,333,000                                                             
          postretirement benefits
        -2,028,000 -2,945,000 -1,317,000 -126,000 -1,294,000 -2,037,000 -1,283,000 -1,340,000 260,000 302,000 -1,223,000 -2,295,000 1,667,000 -4,389,000 -3,178,000 -771,000 1,230,000 -4,577,000 -1,690,000 306,000 1,649,000 -3,373,000 -3,887,000 1,850,000 2,445,000 -6,514,000 572,000 219,000 1,723,000 -2,833,000 648,000 494,000 1,894,000 -4,124,000 704,000 736,000 1,915,000 -3,187,000 -10,000 679,000 2,169,000 -2,643,000 -115,000 352,000 2,289,000 -1,158,000 -334,000 -340,000 1,507,000 -4,185,000 914,000 908,000 2,490,000 -3,776,000 1,186,000 1,185,000 1,482,000 -2,458,000 711,000 675,000 1,035,000 -5,300,000 45,000 1,285,000 1,404,000 1,713,000 -897,000 549,000 1,669,000   534,000 986,000 -5,564,000 876,000 771,000 1,070,000     
          regulatory assets and liabilities excluding cost of removal, income tax temporary differences and postretirement benefits
        4,280,000  2,167,000 5,508,000 -577,000                                                                             
          other noncurrent assets and noncurrent liabilities
        2,717,000                                                                     -969,000 -2,163,000   1,119,000 -367,000 1,295,000 1,531,000   1,171,000 2,627,000 
          other changes
        -6,240,000 -1,992,000 -9,808,000 2,840,000 -2,294,000 5,779,000 1,968,000 1,484,000 -1,702,000 4,589,000 -823,000 -2,392,000 -1,156,000 -2,513,000 2,273,000 -2,814,000 3,315,000 -2,581,000 435,000 -492,000 515,000 -1,395,000 226,000 -2,754,000 1,510,000 9,727,000 -1,260,000 4,694,000 -5,692,000 4,413,000 -611,000 -51,000 -2,054,000 2,355,000 -1,642,000 1,410,000 -1,296,000 1,373,000 -1,570,000 779,000 -227,000 474,000 -340,000 3,000 -2,117,000 2,276,000 -136,000 -833,000 -191,000 1,215,000 -1,227,000 -1,205,000 106,000 562,000 -872,000 -182,000 1,067,000 140,000 -868,000 -393,000 749,000   -494,000 656,000 995,000 258,000 108,000 195,000 1,280,000 -36,000 199,000 163,000 -94,000 -341,000 827,000 805,000  657,000 198,000 81,000 
          net cash from operating activities
        43,706,000 63,520,000 77,266,000 60,836,000 43,181,000 41,460,000 53,534,000 49,316,000 51,216,000 31,528,000 61,939,000 46,757,000 50,607,000 36,850,000 45,751,000 38,304,000 45,294,000 29,785,000 33,159,000 33,720,000 33,376,000 33,436,000 38,275,000 24,411,000 7,929,000 38,728,000 41,520,000 24,564,000 25,193,000 17,632,000 28,285,000 22,844,000 22,582,000 13,145,000 30,976,000 28,749,000 28,242,000 37,643,000 21,555,000 22,787,000 32,087,000 24,913,000 27,326,000 17,851,000 27,167,000 20,010,000 20,882,000 9,058,000 15,961,000 16,213,000 20,173,000 12,608,000 14,431,000 16,999,000 25,718,000 16,883,000 14,767,000 15,187,000 19,326,000 18,155,000 11,536,000 3,995,000 11,015,000 11,113,000 11,044,000 17,854,000 14,324,000 12,620,000 9,658,000     8,502,000 8,881,000 13,430,000 11,218,000    13,131,000 
          capital expenditures
               
          free cash flows
        43,706,000 63,520,000 77,266,000 60,836,000 43,181,000 41,460,000 53,534,000 49,316,000 51,216,000 31,528,000 61,939,000 46,757,000 50,607,000 36,850,000 45,751,000 38,304,000 45,294,000 29,785,000 33,159,000 33,720,000 33,376,000 33,436,000 38,275,000 24,411,000 7,929,000 38,728,000 41,520,000 24,564,000 25,193,000 17,632,000 28,285,000 22,844,000 22,582,000 13,145,000 30,976,000 28,749,000 28,242,000 37,643,000 21,555,000 22,787,000 32,087,000 24,913,000 27,326,000 17,851,000 27,167,000 20,010,000 20,882,000 9,058,000 15,961,000 16,213,000 20,173,000 12,608,000 14,431,000 16,999,000 25,718,000 16,883,000 14,767,000 15,187,000 19,326,000 18,155,000 11,536,000 3,995,000 11,015,000 11,113,000 11,044,000 17,854,000 14,324,000 12,620,000 9,658,000     8,502,000 8,881,000 13,430,000 11,218,000    13,131,000 
          investing activities:
                                                                                         
          additions to utility plant:
                                                                                         
          company-funded
        -82,132,000 -138,538,000 -146,629,000 -126,979,000 -77,461,000 -100,754,000 -93,907,000 -89,489,000 -68,879,000 -75,835,000 -80,188,000 -63,365,000 -52,384,000 -58,269,000 -58,904,000 -57,884,000 -43,727,000 -64,695,000 -69,181,000 -53,383,000 -46,674,000 -64,897,000 -56,345,000 -35,767,000 -38,314,000 -63,205,000 -38,790,000 -32,755,000 -29,575,000 -38,220,000 -35,662,000 -33,130,000 -28,961,000 -37,796,000 -41,380,000 -34,292,000 -27,745,000 -26,321,000 -39,954,000 -31,299,000 -31,560,000 -32,886,000 -25,229,000 -21,644,000 -16,253,000 -21,591,000 -22,100,000 -22,997,000 -25,158,000 -23,217,000 -23,819,000 -18,304,000 -17,380,000 -31,904,000 -26,939,000 -23,325,000 -17,467,000       -22,849,000 -15,658,000                 
          contributions in aid of construction
        -10,376,000 -11,600,000 -6,583,000 -5,079,000 -6,884,000 -5,422,000 -6,978,000 -7,147,000 -4,632,000 -3,251,000 -4,317,000 -6,584,000 -2,703,000 -5,162,000 -4,441,000 -8,550,000 -4,782,000 -4,576,000 -5,163,000 -2,704,000 -4,653,000 -7,512,000 -4,540,000 -1,415,000 -3,629,000 -3,523,000 -2,240,000 -4,527,000 -3,273,000 -2,546,000 -2,817,000 -1,623,000 -1,468,000 -5,211,000 511,000 -1,496,000 -1,646,000 -7,327,000 -2,473,000 -1,816,000 -1,470,000 -2,362,000 -2,249,000 -4,304,000 -1,847,000 -2,779,000 -2,829,000 -2,857,000 -1,625,000 -3,325,000 -3,649,000 -1,933,000 -2,698,000 -1,988,000 -2,389,000 -958,000 -864,000 -2,030,000 -3,510,000 -1,048,000 -723,000 -1,480,000 -1,189,000 -805,000 -890,000                 
          cost to retire utility plant, net of salvage
        -424,000 -421,000 -1,257,000 -1,057,000 -414,000 -1,144,000 -852,000 -690,000 -744,000                                   -214,000 -2,318,000 -677,000 -299,000 -346,000 -229,000 -881,000 -644,000 -292,000 -878,000 -156,000 -674,000 -54,000 -38,000 -114,000 13,000 -832,000 -883,000 -430,000 -131,000 -95,000 -101,000 -149,000 -185,000 -53,000 -72,000            53,000 
          net cash from investing activities
        -92,932,000 -150,559,000 -151,668,000 -133,115,000 -84,759,000 -107,417,000 -101,696,000 -56,709,000 -74,273,000 -80,531,000 -116,362,000 -70,350,000 -55,029,000 -62,875,000 -64,322,000 -67,689,000 -49,442,000 -77,096,000 -75,894,000 -55,065,000 -51,940,000 -73,049,000 -60,112,000 -38,629,000 -42,469,000 -902,995,000 -42,245,000 -38,158,000 -34,373,000 -40,886,000 -38,579,000 -35,815,000 -31,563,000 -18,418,000 -42,470,000 -22,035,000 -30,951,000 -35,456,000 -22,922,000 -29,265,000 -34,486,000 -36,302,000 -26,638,000 -26,202,000 -21,468,000 -25,235,000 -25,723,000 -18,863,000 -27,819,000 -29,240,000 -28,854,000 -23,270,000 -14,406,000 -34,985,000 -24,650,000 -24,708,000 -19,854,000 -23,203,000 -18,896,000 -18,838,000 -14,782,000 -3,073,000 -28,715,000 -25,663,000 -17,312,000 -16,403,000 -17,759,000 -13,687,000 -16,306,000            -10,905,000 
          financing activities:
                                                                                         
          borrowings from lines of credit
        66,923,000 72,243,000 249,328,000 47,556,000 67,403,000                                                                             
          repayments of lines of credit
        -153,752,000 -111,779,000 -283,799,000 -39,305,000 -33,938,000                                                                             
          long-term borrowings
        214,000 120,167,000    35,000,000 125,329,000 25,000,000 70,000,000 40,000,000   110,000,000 50,000,000 70,000,000 17,000,000 50,000,000 35,000,000 510,000,000 80,000,000                              148,000 27,585,000   20,000,000 10,000,000 1,069,000 20,000,000 33,500,000 15,001,000   
          repayments of long-term borrowings
        -16,258,000 -554,000 -1,569,000 -667,000 -1,071,000 -5,922,000 -1,565,000 -517,000 -40,971,000 -1,285,000 -1,502,000 -604,000 -956,000 -1,420,000 -36,145,000 -50,440,000 -1,172,000 -23,413,000 -1,083,000 -50,458,000 -1,159,000 -19,342,000 -7,883,000 -535,000 -1,171,000         -2,685,000 -32,000 -11,456,000 -258,000 -4,733,000 -152,000 -198,000 -121,000 -167,000 -147,000 -189,000 -115,000 -160,000 -138,000 -181,000 -108,000 -175,000 -4,975,000 -199,000 -3,037,000 -219,000 -241,000 -169,000 -189,000 -193,000 -543,000 -213,000 -186,000 -205,000 -186,000 -225,000 -155,000 -194,000 -175,000            -66,000 
          issuance of common stock, net of issuance costs
        288,601,000 14,670,000 24,425,000 57,168,000 26,545,000 21,699,000 31,007,000 25,296,000 7,006,000 5,375,000 11,505,000 22,782,000 40,997,000 35,978,000    24,253,000 -474,000 67,249,000                                                           
          dividends paid
        -15,912,000 -15,038,000 -14,861,000 -14,604,000 -14,142,000 -13,302,000 -13,106,000 -12,900,000 -12,824,000 -12,143,000 -12,093,000 -11,947,000 -11,722,000 -10,915,000 -10,896,000 -10,889,000 -10,882,000 -10,141,000 -10,139,000 -10,133,000 -9,724,000 -9,138,000 -9,131,000 -9,122,000 -9,118,000 -8,538,000 -8,536,000 -8,531,000 -8,529,000 -5,777,000 -5,777,000 -5,766,000 -5,754,000 -7,952,000 -4,464,000 -4,460,000 -4,456,000 -4,140,000 -4,145,000 -4,139,000 -4,135,000 -3,975,000 -3,974,000 -3,970,000 -3,966,000 -3,804,000 -3,794,000 -3,791,000 -3,788,000 -3,679,000 -3,678,000 -3,674,000 -3,412,000 -3,311,000 -3,310,000 -3,305,000 -3,305,000 -3,207,000 -3,207,000 -3,204,000 -3,205,000 -3,152,000 -3,152,000 -3,150,000 -3,149,000 -3,053,000 -3,052,000 -3,050,000 -3,047,000            -2,444,000 
          receipts of advances and contributions in aid of construction
        12,326,000 16,236,000 13,373,000 20,455,000 9,838,000 10,766,000 12,250,000 7,769,000 2,285,000 3,536,000 7,842,000 5,450,000 5,597,000 2,227,000 5,824,000 5,725,000 10,044,000 2,853,000 8,912,000 9,986,000 4,687,000 4,815,000 7,995,000 4,648,000 6,416,000 5,531,000 5,537,000 3,001,000 4,835,000 1,922,000 4,408,000 2,412,000 2,148,000 2,095,000 1,434,000 5,128,000 3,924,000 2,334,000 3,282,000 3,595,000 5,155,000 1,750,000 3,719,000 4,381,000 2,416,000 968,000 2,660,000 2,044,000 1,897,000 1,060,000 4,885,000 3,108,000 1,240,000 2,296,000 2,993,000 1,838,000 1,280,000 1,106,000 2,297,000 2,376,000 370,000 598,000 2,061,000 1,204,000 1,565,000 488,000 2,776,000 930,000 652,000 6,848,000 2,944,000 1,480,000 3,753,000 4,081,000 3,095,000 5,447,000 4,393,000 2,034,000 4,933,000 3,122,000 3,354,000 
          refunds of advances for construction
        -991,000 -765,000 -879,000 -2,086,000 -674,000 -850,000 -772,000 -725,000 -616,000 -615,000 -807,000 -752,000 -589,000 -682,000 -832,000 -750,000 -595,000 -673,000 -816,000 -780,000 -583,000 -646,000 -795,000 -769,000 -557,000 -616,000 -905,000 -835,000 -555,000 -625,000 -824,000 -714,000 -537,000 -640,000 -780,000 -670,000 -532,000 -598,000 -760,000 -689,000 -475,000 -620,000 -741,000 -680,000 -443,000 -578,000 -964,000 -641,000 -429,000 -601,000 -648,000 -617,000 -430,000 -574,000 -614,000 -598,000 -429,000       -588,000 -422,000 -589,000 -650,000 -626,000 -436,000            -334,000 
          net cash from financing activities
        181,548,000 96,411,000 65,867,000 68,432,000 54,160,000 73,104,000 29,325,000 25,655,000 17,876,000 37,659,000 50,016,000 25,734,000 15,411,000 25,179,000 19,110,000 23,947,000 10,118,000 43,209,000 30,855,000 34,936,000 23,805,000 28,671,000 18,731,000 9,262,000 44,869,000 457,509,000 3,578,000 15,780,000 8,121,000 430,649,000 14,695,000 14,943,000 8,136,000  9,835,000 -4,586,000 -15,541,000 5,500,000 6,512,000   10,357,000 345,000 8,172,000 -2,681,000 2,025,000 4,417,000 12,710,000 12,677,000 12,107,000 7,895,000 12,522,000 -402,000 13,824,000 -3,642,000 -2,178,000 -2,386,000 -8,319,000 -2,717,000 43,685,000 3,870,000 -2,527,000 17,540,000 16,245,000 6,652,000 -1,895,000 524,000 3,402,000 5,678,000     18,155,000 4,947,000   1,386,000    
          net change in cash and cash equivalents
        132,322,000 9,372,000 -8,535,000 -3,847,000 12,582,000 7,147,000 -18,837,000 18,262,000 -5,181,000              -3,106,000 -4,956,000 10,329,000  2,853,000 2,186,000 -1,059,000  4,401,000 1,972,000 -845,000      5,145,000 3,826,000 3,453,000 -1,032,000 1,033,000 -179,000 3,018,000 -3,200,000 -424,000 2,905,000 819,000 -920,000 -786,000 1,860,000 -377,000 -4,162,000 -2,574,000 -10,003,000 -7,473,000 -16,335,000 -2,287,000 43,002,000 624,000 -1,605,000 -160,000 1,695,000 384,000 -444,000 -2,911,000 2,335,000 -970,000             
          cash and cash equivalents, beginning of period
        20,686,000  11,114,000  9,723,000               17,944,000  420,722,000         5,239,000  2,399,000  2,299,000  2,522,000  26,734,000  1,730,000  1,416,000  3,406,000  2,354,000  3,788,000     
          cash and cash equivalents, end of period
        153,008,000  -8,535,000 -3,847,000 23,696,000  -18,837,000 18,262,000 4,542,000  -4,407,000 2,141,000 23,333,000  1,141,000 -5,438,000 17,487,000  -11,423,000 14,036,000 11,406,000  -3,106,000 -4,956,000 28,273,000  2,853,000 2,186,000 419,663,000  4,401,000 1,972,000 6,954,000      5,145,000 3,826,000 8,692,000  1,033,000 -179,000 5,417,000  -424,000 2,905,000 3,118,000  -786,000 1,860,000 2,145,000  -2,574,000 -10,003,000 19,261,000  -2,287,000 43,002,000 2,354,000  -160,000 1,695,000 1,800,000  -2,911,000 2,335,000 2,436,000  341,000 121,000 1,715,000  -3,466,000 3,002,000 2,691,000     
          cash paid (refunded) during the period for:
                                                                                         
          interest
        15,790,000 21,120,000 17,441,000 24,047,000 16,820,000 20,969,000 14,199,000 22,089,000 16,011,000 23,376,000 12,476,000 19,594,000 12,062,000 21,204,000 12,284,000 19,062,000 11,127,000 18,642,000 10,267,000 19,750,000 9,516,000 19,546,000 10,379,000 20,657,000 9,373,000 12,317,000 6,489,000 7,028,000 6,304,000 7,333,000 6,465,000 7,198,000 6,042,000 6,871,000 6,001,000 6,338,000 6,044,000 5,638,000 6,381,000 5,573,000 6,370,000 5,416,000 6,313,000 5,431,000 6,474,000 5,395,000 5,100,000 5,485,000 5,066,000 5,408,000 4,991,000 5,414,000 5,073,000 5,449,000 5,118,000 5,496,000 5,143,000 5,495,000 5,170,000 4,456,000 5,186,000 4,384,000 5,195,000 3,287,000 5,204,000 3,172,000 4,914,000 2,580,000 4,943,000 2,699,000 4,995,000 2,579,000 4,976,000 2,068,000 4,841,000 1,875,000 4,358,000 2,024,000 4,069,000 1,200,000 4,039,000 
          interest, net of amounts capitalized
        13,670,000 18,816,000 15,382,000 22,328,000 15,567,000 20,028,000                                                                            
          income taxes
        165,000 5,524,000 84,000 -1,690,000 -680,000 -1,890,000 590,000 525,000 177,000 22,202,000 163,000 457,000 198,000 6,281,000 114,000 293,000 165,000 823,000 6,623,000 862,000 158,000 3,356,000 7,019,000 55,000 -50,000 162,000 6,705,000   8,605,000 4,725,000 335,000 85,000 19,500,000 14,315,000   9,445,000 21,855,000 4,167,000 -7,950,000 6,002,000 4,169,000 5,552,000 -6,000,000 4,394,000 30,000 1,910,000 -10,000 2,001,000 925,000 1,247,000 13,000 1,961,000 359,000   2,339,000 89,000 -6,208,000 850,000 7,233,000 6,651,000 1,103,000 339,000 1,099,000 965,000 199,000 -8,000 3,858,000 1,431,000   6,995,000 7,057,000   6,251,000 7,600,000 2,936,000 371,000 
          supplemental disclosure of non-cash activities:
                                                                                         
          accrued payables for additions to utility plant
        46,703,000 -1,404,000 12,609,000 -783,000 37,724,000 5,722,000 6,845,000 3,062,000 26,063,000 9,589,000 -1,265,000 7,674,000 19,906,000 517,000 3,542,000 -1,970,000 20,472,000  -2,495,000                                                               
          utility property installed by developers
        629,000 1,079,000 1,148,000 460,000 999,000 1,766,000 -49,000 641,000 107,000 2,046,000 357,000 282,000 656,000 1,457,000 -90,000 520,000 546,000 1,132,000 297,000 1,028,000 202,000 4,728,000 1,897,000 78,000 3,076,000 3,186,000 59,000 -168,000 1,180,000 2,000 -25,000 590,000 2,849,000 493,000 138,000 243,000 4,551,000 1,156,000 110,000 3,797,000 512,000 39,000 495,000 -35,000 3,307,000 1,965,000 1,277,000 1,972,000 302,000 -1,000 -111,000 3,859,000 107,000       224,000 117,000 304,000 845,000 308,000 1,015,000 1,882,000           
          loss on sale of nonutility properties and other assets
                                                                                         
          changes in operating assets and liabilities, net of acquired assets and liabilities:
                                                                                         
          accounts receivable and accrued unbilled revenue
                                                                                         
          regulatory assets and liabilities excluding income tax temporary differences and postretirement benefits
                                                                                         
          up-front service concession payments
                                                                                         
          other noncurrent assets and liabilities
                                                                                         
          proceeds from litigation settlement
         1,183,000                                                                                
          additions to nonutility assets and real estate investments
                                                                                         
          payments for business acquisitions
                 -251,000     -400,000 -33,000                                                                 
          proceeds from sale of real estate investments and release of escrow deposit
                                                                                        
          cash and cash equivalents, beginning of year
                                                                                         
          cash and cash equivalents, end of year
                                                                                         
          cash paid (refunded) during the year for:
                                                                                         
          proceeds receivable from sale of real estate investments
                                                                                       
          accrued selling expenses on sale of real estate investments
             -24,000 -185,000                                                                           
          seller financing in asset acquisition, net of discount
                                                                                        
          changes in operating assets and liabilities:
                                                                                         
          proceeds from sale of real estate investments
              41,000                          -1,000                                               
          proceeds from sale of assets
                                                                                         
          regulatory assets and liabilities excluding cost of removal, income tax temporary differences, and postretirement benefits
              -7,785,000 2,868,000 5,753,000                                                                         
          borrowings on line of credit
              4,332,000 64,023,000 87,645,000  62,827,000 27,590,000 12,238,000  63,991,000 73,287,000 15,377,000  21,430,000 17,032,000 28,637,000  137,688,000 41,772,000 47,424,000  7,000,000 28,000,000 38,000,000  18,000,000 20,000,000 14,000,000  26,000,000                                               
          repayments on line of credit
              -128,593,000 -57,275,000 -49,281,000  -17,705,000 -16,712,000 -99,383,000  -6,157,000 -7,949,000 -2,375,000  -37,898,000 -82,222,000  -158,556,000                                                           
          cash paid during the period for:
                                                                                         
          impairment of long-lived asset
                                                                                         
          gain on sale of nonutility properties and other assets
                                                                                         
          net change in cash, cash equivalents and restricted cash
                 -11,344,000 -4,407,000 2,141,000 10,989,000 -846,000 539,000 -5,438,000 5,970,000 -4,102,000 -11,880,000 13,591,000 5,241,000               2,128,000 -18,250,000                                             
          cash, cash equivalents and restricted cash, beginning of year
                                                                                         
          cash, cash equivalents and restricted cash, end of year
                                                                                         
          less restricted cash, end of year
                                                                                         
          cash paid during the year for:
                                                                                         
          gain on sale of nonutility asset
                                                                                         
          regulatory assets and liabilities excluding income tax temporary differences, net and postretirement benefits
                  3,950,000 3,775,000 8,367,000 -20,062,000 4,492,000 12,160,000 5,124,000 -2,211,000                                                                
          up-front service concession payment
                            -5,000,000                                                         
          additions to nonutility assets
                                                                                         
          payments to retire utility plant, net of salvage
                  -440,000 -301,000 -167,000  -596,000 -749,000 -1,087,000  -2,626,000 -448,000 -461,000  -228,000 -1,378,000 -271,000  -1,365,000 -1,484,000 -1,525,000  -1,002,000 -1,653,000 -1,134,000  -1,605,000 -321,000 -397,000  -610,000 -413,000 -395,000                                         
          proceeds from sale of nonutility properties
                        227,000                                                                 
          cash, cash equivalents and restricted cash, beginning of period
                  12,344,000  12,119,000  9,269,000            7,799,000  25,350,000                                             
          cash, cash equivalents and restricted cash, end of period
                  -4,407,000 2,141,000 23,333,000  539,000 -5,438,000 18,089,000  -11,880,000              6,954,000   2,128,000 7,100,000                                             
          less restricted cash, end of period
                       602,000  -457,000 -445,000 3,104,000                                                             
          gain on sale of nonutility property
                                                                                         
          additions to real estate investments
                      -64,000 -506,000 -40,000  -376,000 -78,000 -152,000  -67,000 -69,000 -255,000        3,000 -57,000 -62,000  -6,000    -471,000 -40,000 -59,000      -724,000 -2,259,000 -1,194,000                             
          share-based compensation
                                        487,000 1,010,000 589,000 458,000 586,000 375,000 464,000 379,000 473,000 395,000 447,000 362,000 399,000 257,000 323,000 207,000 244,000 126,000 197,000 242,000 347,000 113,000 168,000 100,000 183,000 138,000 185,000 126,000 202,000 180,000 209,000 182,000 241,000 202,000 203,000 208,000 194,000  151,000 154,000 138,000  -578,000 318,000 839,000     
          gain on sale of twa, real estate investments and nonutility properties
                                                                                         
          tax receivable and accrued taxes
                                            1,090,000 6,292,000 -13,113,000 -3,908,000 10,049,000 -9,608,000 1,570,000 -4,270,000 9,011,000 -6,974,000 200,000 -346,000 1,574,000 -3,629,000 2,661,000 -1,425,000 1,281,000 -1,806,000 3,346,000 3,149,000 404,000                         
          additions to real estate investment
                                                                 9,000 -53,000 -93,000 -19,000 -1,254,000                    
          payments for business/asset acquisitions
                                                                                         
          proceeds from sale of twa, real estate investments and nonutility properties
                                                                                         
          long-term borrowings held as restricted cash
                                                                                         
          gain on sale of nonutility properties and texas water alliance
                      -82,000                                                                   
          proceeds from sale of nonutility properties and texas water alliance
                      83,000                                                                   
          debt issuance costs
                          -547,000          -222,000         -940,000 -86,000                 -87,000 -4,000 -69,000                   
          gain on sale of nonutility properties
                        -5,450,000                                                                 
          accrued additional common stock issuance costs
                            353,000                                                             
          net income before noncontrolling interest
                                 -5,486,000 9,478,000   8,823,000 15,788,000   17,305,000 19,540,000                                               
          increase in accrued payables for construction costs capitalized
                                         -8,968,000 3,256,000 6,351,000 1,634,000 -14,045,000 1,288,000 5,086,000 3,975,000 -1,685,000 3,383,000 1,434,000 4,408,000 -4,685,000 156,000 802,000 -1,254,000 447,000 -2,419,000 4,597,000 1,963,000 -9,460,000 3,133,000 3,295,000 3,387,000                         
          gain on sale of texas water alliance and real estate investments
                                                                                         
          proceeds from sale of texas water alliance and real estate investments
                                                                                         
          change in accrued payables for construction costs capitalized
                          -3,600,000 9,992,000 -6,601,000  6,163,000 -1,565,000 -2,601,000  -1,843,000 5,232,000 -2,884,000  -436,000 2,447,000 -790,000                                                 
          gain on sale of texas water alliance
                                                                                         
          regulatory assets and liabilities excluding income tax temporary differences, net and postretirement benefits.
                                                                                         
          proceeds from sale of texas water alliance
                                                                                         
          payment for asset acquisition
                                                                                         
          regulatory assets and liabilities related to balancing and memorandum accounts
                            -1,750,000  -183,000                                                           
          cash, cash equivalents and restricted cash , end of period
                            14,510,000                                                             
          gain on sale of real estate investments
                             102,000    -184,000                                                     
          other non-cash
                                                                                         
          regulatory asset related to balancing and memorandum accounts
                                                   3,731,000 561,000 20,485,000 -42,224,000 -1,518,000 411,000 -109,000 -1,725,000 -803,000 -1,008,000                             
          payments for business/asset acquisition and water rights
                                         1,000 -49,000 -1,101,000 -7,000 -3,000 1,000 -1,061,000 -991,000 -184,000 -777,000 -807,000 -1,762,000 -18,000 -482,000 -1,087,000 -309,000 -163,000 -323,000 -1,485,000                         
          proceeds from sale of real estate investments and utility property
                                                                                         
          proceeds from sale of equity investments
                                                                                         
          loss on sale of utility property
                                                                23,000                     
          proceeds from sale of utility property
                                                                 43,000                     
          debt issuance and broker fee costs
                              -432,000    -310,000                                                       
          tax payable and receivable, and other accrued taxes
                               3,859,000 1,875,000  4,512,000 -4,892,000 4,851,000  6,875,000 3,142,000 2,465,000  2,198,000                                               
          regulatory assets and liability related to balancing and memorandum accounts
                                -10,158,000  16,552,000 3,300,000 2,937,000  -6,221,000 -951,000 2,350,000  2,528,000 -4,948,000 1,917,000  10,019,000 -3,801,000 3,021,000                                         
          repayments of line of credit
                                -33,231,000  -5,000,000 -106,000,000      -13,000,000 -2,500,000 -14,200,000  -12,025,000 -2,500,000 -10,050,000 -34,200,000 -6,500,000 -16,700,000 -18,200,000 -1,000,000 -60,000,000 -3,200,000 -2,200,000 -8,000,000 -4,900,000 -23,100,000 -5,500,000     -5,500,000 -8,300,000   -12,500,000 -26,800,000 -22,500,000 -2,300,000 -3,000,000 -13,700,000 -10,000,000             
          unrealized loss on california water service group stock
                                     -140,000 667,000                                                 
          gain on sale of california water service group stock
                                                                                    
          proceeds from sale of california water service group stock
                                     3,398,000       -1,000                                         
          reconciliation to consolidated balance sheets:
                                                                                         
          cash and cash equivalents
                                        6,954,000   2,128,000 7,092,000                                             
          restricted cash
                                           8,000                                             
          loss on sale of california water service group stock
                                       87,000                                                 
          payments for business/asset acquisition
                                                                                         
          payment to noncontrolling interest
                                                                                      
          gain on sale of texas water alliance limited and utility property
                                                                                         
          proceeds from sale of texas water alliance limited and utility property
                                                                                         
          adjustments to reconcile net income before noncontrolling interest to net cash from operating activities:
                                                                                         
          proceeds from non-refundable deposit
                                                                                        
          deposit for long-lived asset held-for-sale
                                                                                         
          net cash (used) provided by financing activities
                                                                                         
          employee stock purchase plan proceeds
                                            570,000  503,000 451,000                                         
          taxes paid related to net share settlement of restricted and deferred stock units
                                            -815,000                                             
          tax benefits realized from restricted and deferred stock units
                                              1,000 94,000 108,000                                         
          gain on sale of real estate investment
                                                    -281,000   -1,063,000                            
          proceeds from sale of real estate investment
                                                    291,000   8,831,000                            
          exercise of stock options and similar instruments
                                                 462,000 433,000 1,000,000 433,000 8,000 476,000 126,000 512,000 21,000 345,000 258,000 326,000 96,000 309,000 17,000 285,000 8,000 254,000 148,000 254,000 290,000 -10,000 305,000 346,000 210,000 252,000 428,000 -94,000        
          tax benefits realized from share options exercised
                                                 108,000 526,000 156,000 -3,000 250,000 59,000 1,000 -68,000 65,000 30,000 54,000   -1,000 8,000 37,000 4,000 -6,000 42,000 38,000 57,000 266,000 58,000 168,000        
          borrowings from line of credit
                                               18,925,000 14,950,000 47,600,000 7,500,000 25,200,000 16,700,000 6,000,000 16,200,000 18,200,000 16,800,000 23,400,000 11,900,000 1,000,000 12,300,000     7,000,000 3,100,000 7,500,000 13,000,000 18,450,000 20,000,000 10,850,000 4,500,000 1,300,000 8,300,000 3,500,000 8,000,000 8,550,000 5,900,000 14,600,000 8,000,000 3,500,000 5,300,000 7,500,000 6,500,000   
          net cash provided (used) by financing activities
                                                5,852,000                                         
          accrued groundwater extraction charges and purchased water
                                                   1,893,000 748,000 -4,983,000 -212,000 4,143,000 -653,000 -3,748,000 790,000 3,877,000 1,442,000 -5,308,000 651,000 4,082,000 -459,000 -3,129,000 1,916,000 3,281,000 -638,000 -3,864,000 589,000 3,826,000 -688,000 -3,794,000 177,000 4,088,000 -1,232,000 -3,898,000 90,000   -6,437,000 768,000 6,294,000 727,000     
          purchased power
                                                   -21,000 -51,000                                     
          other current asset and liabilities related to balancing and memorandum accounts
                                                   -959,000 857,000   -93,000 -95,000                                 
          accounts payable, purchased power and other current liabilities
                                                     -1,496,000 558,000 1,507,000 -1,018,000 1,927,000 -4,214,000 2,172,000 94,000 -99,000 711,000 722,000 -401,000 -161,000 -856,000 1,811,000 -927,000 472,000 -276,000 728,000 -37,000 -1,440,000 -780,000 1,304,000 452,000 -1,167,000 -321,000       -3,059,000    
          increase in real estate investments due to accrued tenant improvements
                                                          -204,000 -338,000 921,000                             
          accrued intangible assets and other charges related to water supply project in texas
                                                          -9,000 -403,000 2,621,000                             
          obligations relieved related to acquisition of certain water service assets
                                                                                         
          other current asset
                                                            -813,000 1,557,000 2,327,000 1,138,000 718,000                         
          impairment of real estate investment
                                                                                         
          accrued interest
                                                              175,000 -181,000 164,000 -64,000 177,000 366,000 -347,000 456,000 -341,000 1,122,000 -972,000 1,029,000 -1,033,000 1,491,000 -1,074,000           1,516,000 -1,416,000 
          accrued payroll
                                                              553,000 -111,000 180,000 -601,000 -399,000 944,000 105,000 -355,000 -396,000 875,000 192,000 -526,000 -422,000 932,000 -946,000 769,000 -141,000        5,000 9,000 369,000 
          prepaid expenses and materials and supplies
                                                                               173,000 221,000   59,000 436,000     
          increase in accrued payables
                                                                                         
          obligations (relieved) incurred related to acquisition of certain water service assets
                                                                                         
          gain on sale of california water service group investment
                                                                                         
          accrued taxes
                                                                  -2,000 8,362,000 -3,551,000  345,000 660,000 -211,000 320,000 3,082,000 -820,000 -571,000 -4,590,000 4,001,000 -3,231,000 4,362,000 -4,628,000 -448,000 903,000 2,413,000  54,000 1,617,000 1,820,000 
          company funded
                                                                  -15,057,000 -16,167,000 -12,122,000                     
          payments for business acquisition and water rights
                                                                  -289,000 -698,000 -1,078,000                     
          proceeds from sale of california water service group investment
                                                                                         
          refund of advances for construction
                                                                  -603,000 -601,000 -427,000                     
          change in accrued payables
                                                                  -1,948,000 -2,159,000 5,625,000                     
          loan proceeds held as restricted cash
                                                                      -27,585,000                   
          gain on sale of real estate investments, net of taxes
                                                                                         
          gain on sale of utility property, net of taxes
                                                                                         
          acquisition of service area and water rights
                                                                                         
          acquisition of certain water service assets
                                                                                         
          obligations incurred related to acquisition of certain water service assets
                                                                                         
          gain on sale of california water service group investment, net of tax
                                                                                         
          other charges
                                                                                         
          payments for business acquisition
                                                                       -1,914,000 -663,000  -3,720,000             
          change in accrued payables for additions to utility plant
                                                                       7,339,000 4,297,000  122,000 2,587,000 927,000             
          sale proceeds held in trust account
                                                                                         
          decrease in real estate investments due to transfer to utility property
                                                                                         
          obligation incurred related to acquisition of certain water service assets
                                                                                         
          additions to utility plant
                                                                          -17,574,000 -13,634,000 -12,514,000            -10,954,000 
          increase in nonutility property due to transfer from utility property
                                                                                         
          amortization of debt issuance costs
                                                                          47,000 48,000 46,000  47,000 47,000 46,000         
          payments for business acquisitions, net of cash acquired
                                                                                         
          cancellation of canyon lake water supply corporation bonds
                                                                                         
          net cash provided by operating activities
                                                                                11,267,000         
          additions to nonutility property
                                                                                         
          sale proceeds from trust account
                                                                                  31,261,000     
          net cash provided by financing activities
                                                                                6,842,000         
          increase (decrease) in accrued payables for additions to utility plant
                                                                                         
          decrease in nonutility property due to transfer to utility property
                                                                                        
          decrease in accrued payables for additions to utility plant
                                                                                         
          regulatory assets
                                                                                         
          common stock buyback
                                                                                         
          increase in accrued payables for additions to utility plant
                                                                                 190,000        
          gain on sale of nonutility property, net of taxes
                                                                                         
          proceeds from sale of nonutility property
                                                                                     30,893,000   
          cash acquired from the acquisition of canyon lake water supply corporation, net of payments made for the acquisition
                                                                                        
          discharge of canyon lake water supply corporation bonds
                                                                                         
          exercise of stock options
                                                                                   82,000 301,000 6,000 4,000 
          net cash from (used in) financing activities
                                                                                    19,315,000     
          tax benefit from stock options
                                                                                         
          condemnation gain, net of taxes
                                                                                         
          accounts receivable and accrued utility revenue
                                                                                         
          accrued pump taxes and purchased water
                                                                                       3,778,000 -683,000 
          work order deposits
                                                                                       453,000 -79,000 
          deferred revenue
                                                                                         
          payments for business acquistions, net of cash acquired
                                                                                         
          proceeds from condemnation, net of legal fees
                                                                                         
          net cash used in investing activities
                                                                                         
          stock based compensation
                                                                                      316,000   
          accrued ground water extraction charges and purchased water
                                                                                         
          stock buyback
                                                                                         
          net change in cash and equivalents
                                                                                        2,740,000 
          cash and equivalents, beginning of period
                                                                                      -1,501,000 10,899,000 
          cash and equivalents, end of period
                                                                                      334,000 -11,077,000 13,639,000 
          adjustments to reconcile net income to net cash provided by operating activities:
                                                                                         
          purchases of short-term investments
                                                                                         
          adjustments to reconcile net income to net cash
                                                                                         
          provided by operating activities:
                                                                                         
          accounts receivable and unbilled utility revenue
                                                                                        365,000 
          prepaid expenses and materials & supplies
                                                                                        402,000 
          accounts payable, purchased power and other
                                                                                         
          current liabilities
                                                                                        3,005,000 
          net cash from financing
                                                                                         
          activities
                                                                                        514,000