Revenue (Tables)

3 Months Ended

Mar. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table provides detail of Pinnacle West's consolidated revenue disaggregated by revenue sources (dollars in thousands):

	Three Months Ended March 31,
	2020		2019
Retail Electric Revenue
Residential	$	325,073	$	351,566
Non-Residential	303,351		332,668
Wholesale energy sales	14,668		36,452
Transmission services for others	15,927		15,249
Other sources	2,911		4,595
Total operating revenues	$	661,930	$	740,530

Schedule of Accounts Receivable

The following table provides a rollforward of Pinnacle West’s allowance for doubtful accounts (dollars in thousands):

	March 31, 2020			December 31, 2019
Allowance for doubtful accounts, balance at beginning of period	$	8,171		$	4,069
Bad debt expense	3,122			11,819
Actual write-offs	(2,927		)	(7,717		)
Allowance for doubtful accounts, balance at end of period	$	8,366		$	8,171