CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Dec. 31, 2023	Dec. 31, 2022
Sales:
Total sales		$ 528,096	$ 648,187
Cost and expenses:
(Increase) decrease in the fair value of derivative instruments	[1]	19,030	17,636
Delivery and branch expenses		94,364	97,936
Depreciation and amortization expenses		8,386	7,837
General and administrative expenses		7,021	6,856
Finance charge income		(771)	(1,319)
Operating income		21,621	23,605
Interest expense, net		(3,218)	(4,274)
Amortization of debt issuance costs		(250)	(329)
Income before income taxes		18,153	19,002
Income tax expense		5,174	5,463
Net income		12,979	13,539
General Partner's interest in net income		118	122
Limited Partners' interest in net income		$ 12,861	$ 13,417
Basic and diluted income per Limited Partner Unit:	[2]	$ 0.32	$ 0.33
Weighted average number of Limited Partner units outstanding:
Weighted average number of Limited Partner units outstanding, Basic		35,593	35,916
Weighted average number of Limited Partner units outstanding, Diluted		35,593	35,916
Product
Sales:
Total sales		$ 448,550	$ 569,929
Installations and services
Sales:
Total sales		79,546	78,258
Cost of product
Cost and expenses:
Cost and expenses		303,338	419,093
Cost of installations and services
Cost and expenses:
Cost and expenses		$ 75,107	$ 76,543

[1] Represents the change in value of unrealized open positions and expired options.

[2] See Note 15 - Earnings Per Limited Partner Unit.