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Derivative Instruments (Tables)

12 Months Ended

Dec. 31, 2018

GSWC

Derivative instruments

Schedule of changes in the fair value of the derivative

The following table presents changes in the fair value of GSWC’s derivatives for the years ended December 31, 2018 and 2017:

(dollars in thousands)		2018				2017
Balance, at beginning of the period		$	(2,941	)		$	(4,901	)
Unrealized gain on purchased power contracts		2,630				1,960
Balance, at end of the period		$	(311	)		$	(2,941	)

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Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
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-Section 50
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