Revenue Recognition (Tables)

12 Months Ended

Sep. 30, 2023

Revenue from Contract with Customer [Abstract]

Summary of Disaggregation of Revenue by Major Sources

The following disaggregates our revenue by major sources for the years ended September 30, 2023, 2022 and 2021:

	Years Ended September 30,
(in thousands)	2023		2022		2021
Petroleum Products:
Home heating oil and propane	$	1,202,194	$	1,170,552	$	881,526
Motor fuel and other petroleum products		448,547		527,729		322,793
Total petroleum products		1,650,741		1,698,281		1,204,319
Installations and Services:
Equipment installations		114,756		121,023		110,475
Equipment maintenance service contracts		126,887		121,623		118,546
Billable call services		60,478		65,631		63,746
Total installations and services		302,121		308,277		292,767
Total Sales	$	1,952,862	$	2,006,558	$	1,497,086

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, 2022	$	7,755
Current period provision		9,761
Write-offs, net and other		(9,141	)
Balance as of September 30, 2023	$	8,375