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Derivative Instruments (Tables) | 9 Months Ended
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Sep. 30, 2020
GOLDEN STATE WATER COMPANY |
Derivative Instruments, Gain (Loss) [Line Items] |
Derivative Instruments | The following table presents changes in the fair value of the Level 3 derivatives for the three and nine months ended September 30, 2020 and 2019:
|  | For The Three Months Ended September 30, |  | For The Nine Months Ended September 30,
(dollars in thousands) |  | 2020 |  | 2019 |  | 2020 |  | 2019
Fair value at beginning of the period |  | $ | (3,827) |  |  | $ | (267) |  |  | $ | (3,171) |  |  | $ | (311) |
Unrealized gains (losses) on purchased power contracts |  | 1,309 |  |  | (2,755) |  |  | 653 |  |  | (2,711) |
Fair value at end of the period |  | $ | (2,518) |  |  | $ | (3,022) |  |  | $ | (2,518) |  |  | $ | (3,022) |

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- Definition Tabular disclosure of financial instrument classified as a derivative asset (liability) after deduction of derivative liability (asset) using recurring unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19279-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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