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Revenues (Tables) | 12 Months Ended
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Dec. 31, 2021
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue [Table Text Block] |
(dollar in thousands) |  | For The Year Ended December 31, 2021 |  | For The Year Ended December 31, 2020 |  | For The Year Ended December 31, 2019
Water: |  |  |  |  |  |
Tariff-based revenues |  | $ | 345,562 |  |  | $ | 329,670 |  |  | $ | 305,244 |
CPUC-approved surcharges (cost-recovery activities) |  | 3,280 |  |  | 3,736 |  |  | 4,322 |
Other |  | 2,227 |  |  | 2,100 |  |  | 2,006 |
Water revenues from contracts with customers |  | 351,069 |  |  | 335,506 |  |  | 311,572 |
WRAM (over)/under-collection (alternative revenue program) |  | (3,957) |  |  | (4,869) |  |  | 8,258 |
Total water revenues |  | 347,112 |  |  | 330,637 |  |  | 319,830 |
Electric: |  |  |  |  |  |
Tariff-based revenues |  | 37,124 |  |  | 35,283 |  |  | 36,628 |
CPUC-approved surcharges (cost-recovery activities) |  | 310 |  |  | 686 |  |  | 410 |
Electric revenues from contracts with customers |  | 37,434 |  |  | 35,969 |  |  | 37,038 |
BRRAM under-collection (alternative revenue program) |  | 911 |  |  | 1,055 |  |  | 2,510 |
Total electric revenues |  | 38,345 |  |  | 37,024 |  |  | 39,548 |
Contracted services: |  |  |  |  |  |
Water |  | 71,210 |  |  | 74,898 |  |  | 59,868 |
Wastewater |  | 42,186 |  |  | 45,684 |  |  | 54,623 |
Contracted services revenues from contracts with customers |  | 113,396 |  |  | 120,582 |  |  | 114,491 |
Total revenues |  | $ | 498,853 |  |  | $ | 488,243 |  |  | $ | 473,869 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] | The opening and closing balances of the receivable from the U.S. government, contract assets and contract liabilities from contracts with customers, which related entirely to ASUS, are as follows:
(dollar in thousands) |  | December 31, 2021 |  | December 31, 2020
Unbilled receivables |  | $ | 14,835 |  |  | $ | 14,924 |
Receivable from the U.S. government |  | $ | 79,818 |  |  | $ | 74,670 |
Contract assets |  | $ | 9,587 |  |  | $ | 10,257 |
Contract liabilities |  | $ | 257 |  |  | $ | 1,800 |

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- Definition Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130551-203045 + Details
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- Definition Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=123351226&loc=SL49130545-203045 + Details
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- References No definition available. + Details
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