Revenue Recognition (Tables)

9 Months Ended

Jun. 30, 2021

Revenue From Contract With Customer [Abstract]

Summary of Disaggregation of Revenue by Major Sources

The following disaggregates our revenue by major sources for the three and nine months ended June 30, 2021 and June 30, 2020:

	Three Months Ended June 30,				Nine Months Ended June 30,
(in thousands)	2021		2020		2021		2020
Petroleum Products:
Home heating oil and propane	$	111,451	$	120,951	$	818,664	$	877,763
Other petroleum products		93,594		44,231		226,084		201,382
Total petroleum products		205,045		165,182		1,044,748		1,079,145
Installations and Services:
Equipment installations		28,525		21,548		81,450		72,271
Equipment maintenance service contracts		32,196		32,541		86,109		88,213
Billable call services		17,334		12,884		48,228		44,534
Total installations and services		78,055		66,973		215,787		205,018
Total Sales	$	283,100	$	232,155	$	1,260,535	$	1,284,163

Summary of Changes in Allowance for Credit Losses

Changes in the allowance for credit losses are as follows:

(in thousands)	Credit Loss Allowance
Balance at September 30, 2020	$	6,121
Current period provision		622
Write-offs, net and other		(831	)
Balance as of June 30, 2021	$	5,912