REVENUES: Alternative Revenue Program and Other Revenues (Tables)

12 Months Ended

Dec. 31, 2019

Alternative Revenue Program and Other Revenues [Line Items]

Alternative revenue programs and other revenues

The table below presents the FCA mechanism revenues and derivative revenues (in thousands):

	Year Ended December 31,
	2019		2018		2017
Alternative revenue programs and derivative revenues:
FCA mechanism revenues	$	36,923	$	35,924	$	18,196
Derivative revenues	20,731		18,546		6,693
Total alternative revenue programs and derivative revenues	$	57,654	$	54,470	$	24,889