Selected Balance Sheet Information:

9 Months Ended

Sep. 30, 2020

Selected Balance Sheet Information [Abstract]

Accounts Receivable and Allowance for Credit Losses

Following is a summary of Accounts receivable, net included in the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:


	September 30, 2020		December 31, 2019
Accounts receivable, trade	$	108,351	$	144,747
Unbilled revenue	60,736		113,502
Less: Allowance for credit losses	(8,609)		(2,444)
Accounts receivable, net	$	160,478	$	255,805

Changes to allowance for credit losses for the nine months ended September 30, 2020 and 2019, respectively, were as follows (in thousands):


	Balance at Beginning of Year		Additions Charged to Costs and Expenses			Recoveries and Other Additions		Write-offs and Other Deductions		Balance at September 30,
2020	$	2,444	$	8,471	(a)	$	3,720	$	(6,026)	$	8,609
2019	$	3,209	$	5,637		$	2,742	$	(8,429)	$	3,159

__________

(a) Due to the COVID-19 pandemic, all of our jurisdictions temporarily suspended disconnections for a period of time, which increased our accounts receivable arrears balances. As a result, we increased our allowance for credit losses and bad debt expense for the nine months ended September 30, 2020 by an incremental $3.7 million.

The ongoing credit evaluation of our customers during the COVID-19 pandemic is further discussed in the Credit Risk section of Note 9.

Materials, Supplies and Fuel

The following amounts by major classification are included in Materials, supplies and fuel on the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:


	September 30, 2020		December 31, 2019
Materials and supplies	$	93,069	$	82,809
Fuel - Electric Utilities	1,745		2,425
Natural gas in storage	31,544		31,938
Total materials, supplies and fuel	$	126,358	$	117,172

Accrued Liabilities

The following amounts by major classification are included in Accrued liabilities on the accompanying Condensed Consolidated Balance Sheets (in thousands) as of:


	September 30, 2020		December 31, 2019
Accrued employee compensation, benefits and withholdings	$	65,309	$	62,837
Accrued property taxes	40,624		44,547
Customer deposits and prepayments	59,510		54,728
Accrued interest	46,044		31,868
Other (none of which is individually significant)	32,523		32,787
Total accrued liabilities	$	244,010	$	226,767