Revenue (Tables)

3 Months Ended

Mar. 31, 2021

Revenue From Contract With Customer [Abstract]

Schedule of Utilities Operating Revenue Expense Taxes

Utility-related taxes that were included in revenue from contracts with customers were as follows for the three months ended March 31 (dollars in thousands):

	2021				2020
Utility-related taxes	$	19,696			$	18,700

Disaggregation of Revenue

Disaggregation of Total Operating Revenue

The following table disaggregates total operating revenue by segment and source for the three months ended March 31 (dollars in thousands):

	2021			2020
Avista Utilities
Revenue from contracts with customers	$	358,613		$	351,628
Derivative revenues		34,981			31,075
Alternative revenue programs		499			(4,413	)
Deferrals and amortizations for rate refunds to customers		3,189			(2,606	)
Other utility revenues		2,578			1,521
Total Avista Utilities		399,860			377,205
AEL&P
Revenue from contracts with customers		12,779			12,126
Deferrals and amortizations for rate refunds to customers		(47	)		(48	)
Other utility revenues		89			124
Total AEL&P		12,821			12,202

Other revenues		189			823
Total operating revenues	$	412,870		$	390,230

Utility Revenue from Contracts with Customers by Type and Service

The following table disaggregates revenue from contracts with customers associated with the Company's electric operations for the three months ended March 31 (dollars in thousands):

	2021						2020
	Avista Utilities		AEL&P		Total Utility		Avista Utilities		AEL&P		Total Utility
Three months ended March 31,
ELECTRIC OPERATIONS
Revenue from contracts with customers
Residential	$	113,223	$	6,048	$	119,271	$	107,977	$	5,866	$	113,843
Commercial and governmental		76,284		4,772		81,056		78,849		6,199		85,048
Industrial		24,711		1,899		26,610		24,711		—		24,711
Public street and highway lighting		1,852		60		1,912		1,783		61		1,844
Total retail revenue		216,070		12,779		228,849		213,320		12,126		225,446
Transmission		3,495		—		3,495		3,774		—		3,774
Other revenue from contracts with customers		6,140		—		6,140		5,289		—		5,289
Total electric revenue from contracts with customers	$	225,705	$	12,779	$	238,484	$	222,383	$	12,126	$	234,509

The following table disaggregates revenue from contracts with customers associated with the Company's natural gas operations for the three months ended March 31 (dollars in thousands):

	2021		2020
	Avista Utilities		Avista Utilities
Three months ended March 31,
NATURAL GAS OPERATIONS
Revenue from contracts with customers
Residential	$	87,501	$	84,173
Commercial and governmental		39,775		39,401
Industrial and interruptible		2,224		2,194
Total retail revenue		129,500		125,768
Transportation		2,283		2,352
Other revenue from contracts with customers		1,125		1,125
Total natural gas revenue from contracts with customers	$	132,908	$	129,245