Revenue Revenue (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule Of Utilities Operating Revenue Expense Taxes [Table Text Block]

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

	2019		2018		2017
Utility-related taxes	$	59,528	$	58,730	$	64,012

Unbilled Accounts Receivable [Table Text Block]

Accounts receivable includes unbilled energy revenues of the following amounts as of December 31 (dollars in thousands):

	2019		2018
Unbilled accounts receivable	$	63,259	$	67,098

Disaggregation of Revenue [Table Text Block]

Disaggregation of Total Operating Revenue

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

	2019			2018
Avista Utilities
Revenue from contracts with customers	$	1,152,125		$	1,147,935
Derivative revenues	118,741			186,459
Alternative revenue programs	9,614			908
Deferrals and amortizations for rate refunds to customers	4,509			(18,241		)
Other utility revenues	10,884			8,905
Total Avista Utilities	1,295,873			1,325,966
AEL&P
Revenue from contracts with customers	36,779			44,758
Deferrals and amortizations for rate refunds to customers	(190		)	(1,753		)
Other utility revenues	676			594
Total AEL&P	37,265			43,599
Other
Revenue from contracts with customers	11,286			26,154
Other revenues	1,198			1,174
Total other	12,484			27,328
Total operating revenues	$	1,345,622		$	1,396,893

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 years ended December 31 (dollars in thousands):

	2019						2018
	Avista Utilities		AEL&P		Total Utility		Avista Utilities		AEL&P		Total Utility
ELECTRIC OPERATIONS
Revenue from contracts with customers
Residential	$	369,102	$	17,134	$	386,236	$	368,753	$	18,506	$	387,259
Commercial and governmental	317,589		19,391		336,980		314,532		25,989		340,521
Industrial	105,802		—		105,802		109,846		—		109,846
Public street and highway lighting	7,448		254		7,702		7,539		263		7,802
Total retail revenue	799,941		36,779		836,720		800,670		44,758		845,428
Transmission	18,180		—		18,180		17,864		—		17,864
Other revenue from contracts with customers	26,969		—		26,969		27,364		—		27,364
Total revenue from contracts with customers	$	845,090	$	36,779	$	881,869	$	845,898	$	44,758	$	890,656

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

	2019		2018
	Avista Utilities		Avista Utilities
NATURAL GAS OPERATIONS
Revenue from contracts with customers
Residential	$	196,430	$	194,340
Commercial	92,168		89,341
Industrial and interruptible	5,263		4,753
Total retail revenue	293,861		288,434
Transportation	8,674		9,103
Other revenue from contracts with customers	4,500		4,500
Total revenue from contracts with customers	$	307,035	$	302,037