| Jan 1, 2008 | Acquisition of Waikoloa Resort Utilities, Inc., Waikoloa Water Company, Inc., Waikoloa Sewer Company, Inc. | Water utilities | $20,581 | In 2008, after receiving regulatory approval, the Company’s wholly-owned subsidiary, Hawaii Water Service Company, Inc. acquired in two separate transactions, business on the Is... | 10-K† |
| Jan 1, 2008 | Acquisition of water and wastewater assets of Kukio Utility Company and WB Maninowali | Water utilities | $10,610 | The second acquisition was for the water and wastewater assets of two other companies, (Kukio Utility Company and WB Maninowali) for a cash price of $10,610. No liabilities were... | 10-K† |
| Jan 1, 2007 | Five water systems acquired by Washington Water | Water utilities | $1,091 | In addition, the Company’s wholly-owned subsidiary, Washington Water, acquired five water systems for $1,091 in cash, which was the approximate value of rate base of the systems. | 10-K† |
| Jan 1, 2005 | Three water systems acquired by subsidiaries | Water utilities | $807 | In 2005, after receiving regulatory approval, the Company’s subsidiaries acquired three water systems for a combined purchase price of $807, including liabilities assumed of $33... | 10-K† |
| Jan 1, 2006 | Water system acquired by New Mexico Water | Water utilities | $500 | In 2006, after receiving regulatory approval, the Company’s wholly-owned subsidiary, New Mexico Water, acquired a water system by purchasing the assets of the system for a purch... | 10-K† |
| Jan 1, 2007 | Water system acquisition by Cal Water | Water utilities | $388 | In 2007, after receiving regulatory approval, the Company’s wholly owned subsidiary, Cal Water, acquired a water system with allowed rate base of approximately $425 for $388 in... | 10-K† |
| Jan 1, 2007 | Water system acquired by Cal Water | Water utilities | $388 | In 2007, after receiving regulatory approval, the Company’s wholly-owned subsidiary, Cal Water, acquired a water system with allowed rate base of approximately $425 for $388 in... | 10-K† |
| Dec 31, 2026 | Nexus Water Group | Water utilities | $218 | In February of 2026, we entered into an agreement to purchase Nexus’ Nevada and Oregon water and wastewater systems (the Systems) for approximately $218.0 million, subject to th... | 10-K† |