Revenue Recognition (Tables)

3 Months Ended

Dec. 31, 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 months ended December 31, 2021 and December 31, 2020:

	Three Months Ended December 31,
(in thousands)	2021		2020
Petroleum Products:
Home heating oil and propane	$	305,723	$	240,812
Other petroleum products		105,542		59,520
Total petroleum products		411,265		300,332
Installations and Services:
Equipment installations		33,069		30,060
Equipment maintenance service contracts		26,977		26,868
Billable call services		16,959		16,060
Total installations and services		77,005		72,988
Total Sales	$	488,270	$	373,320

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, 2021	$	4,779
Current period provision		(288	)
Write-offs, net and other		171
Balance as of December 31, 2021	$	4,662