CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Sales:
Total sales		$ 648,187	$ 488,270
Cost and expenses:
(Increase) decrease in the fair value of derivative instruments	[1]	17,636	13,403
Delivery and branch expenses		97,936	88,989
Depreciation and amortization expenses		7,837	8,448
General and administrative expenses		6,856	6,676
Finance charge income		(1,319)	(512)
Operating income		23,605	22,624
Interest expense, net		(4,274)	(2,058)
Amortization of debt issuance costs		(329)	(239)
Income before income taxes		19,002	20,327
Income tax expense		5,463	5,838
Net income		13,539	14,489
General Partner's interest in net income		122	122
Limited Partners' interest in net income		$ 13,417	$ 14,367
Basic and diluted income per Limited Partner Unit (1):		$ 0.33	$ 0.32
Weighted average number of Limited Partner units outstanding:
Weighted average number of Limited Partner units outstanding, Basic		35,916	38,789
Weighted average number of Limited Partner units outstanding, Diluted		35,916	38,789
Product
Sales:
Total sales		$ 569,929	$ 411,265
Installations and services
Sales:
Total sales		78,258	77,005
Cost of product
Cost and expenses:
Cost and expenses		419,093	274,594
Cost of installations and services
Cost and expenses:
Cost and expenses		$ 76,543	$ 74,048

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