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Revenue from Contract with Customer (Tables) | 9 Months Ended
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Sep. 30, 2018
Revenue from Contract with Customer [Abstract] |
Disaggregation of Revenue | For the three and nine months ended September 30, 2018, disaggregated revenues from contracts with customers by segment are as follows:
(dollar in thousands) |  | Three Months Ended September 30, 2018 |  | Nine Months Ended September 30, 2018
Water: |  |  |  |
Tariff-based revenues |  | $ | 87,204 |  |  | $ | 223,230 |
CPUC-approved surcharges (cost-recovery activities) |  | 937 |  |  | 2,458 |
Other |  | 486 |  |  | 1,381 |
Water revenues from contracts with customers |  | 88,627 |  |  | 227,069 |
WRAM under-collection (alternative revenue program) |  | (938 | ) |  | 1,765 |
Total water revenues |  | 87,689 |  |  | 228,834 |
Electric: |  |  |  |
Tariff-based revenues |  | 8,207 |  |  | 26,021 |
CPUC-approved surcharges (cost-recovery activities) |  | 62 |  |  | 172 |
Electric revenues from contracts with customers |  | 8,269 |  |  | 26,193 |
BRRAM over-collection (alternative revenue program) |  | (394 | ) |  | (645 | )
Total electric revenues |  | 7,875 |  |  | 25,548 |
Contracted services: |  |  |  |
Water |  | 16,909 |  |  | 44,134 |
Wastewater |  | 11,709 |  |  | 27,295 |
Contracted services revenues from contracts with customers |  | 28,618 |  |  | 71,429 |
Total revenues |  | $ | 124,182 |  |  | $ | 325,811 |
Schedule of Contract Assets and Contract LiabilitiesRevenue from Contract with Customer | 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) |  | September 30, 2018 |  | January 1, 2018
Receivable from the U.S. government |  | $ | 54,968 |  |  | $ | 40,150 |
Contract assets |  | $ | 19,043 |  |  | $ | 30,388 |
Contract liabilities |  | $ | 8,942 |  |  | $ | 3,911 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=82913847&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/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045 + Details
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