Selected Quarterly Financial Data

12 Months Ended

Sep. 30, 2025

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data

21) Selected Quarterly Financial Data (unaudited)

	Three Months Ended
	Dec. 31,		Mar. 31,		Jun. 30,			Sep. 30,
(in thousands - except per unit data)	2024		2025		2025			2025			Total
Sales	$	488,063	$	743,045	$	305,618		$	247,692		$	1,784,418
Gross profit for product, installations and services		157,699		259,885		85,857			59,425			562,866
Operating income (loss)		49,219		125,372		(19,177	)		(40,943	)		114,471
Income (loss) before income taxes		45,908		120,678		(23,090	)		(40,594	)		102,902
Net income (loss)		32,884		85,911		(16,629	)		(28,671	)		73,495
Limited Partner interest in net income (loss)		32,577		85,109		(16,472	)		(28,396	)		72,818
Net income (loss) per Limited Partner unit:
Basic and diluted (a)	$	0.79	$	2.01	$	(0.48	)	$	(0.84	)	$	1.82

	Three Months Ended
	Dec. 31,		Mar. 31,		Jun. 30,			Sep. 30,
(in thousands - except per unit data)	2023		2024		2024			2024			Total
Sales	$	528,096	$	666,032	$	331,640		$	240,331		$	1,766,099
Gross profit for product, installations and services		149,651		206,046		88,247			57,880			501,824
Operating income (loss)		21,621		100,331		(12,291	)		(48,559	)		61,102
Income (loss) before income taxes		18,153		96,244		(15,201	)		(50,642	)		48,554
Net income (loss)		12,979		68,374		(11,044	)		(35,086	)		35,223
Limited Partner interest in net income (loss)		12,861		67,754		(10,943	)		(34,760	)		34,912
Net income (loss) per Limited Partner unit:
Basic and diluted (a)	$	0.32	$	1.56	$	(0.31	)	$	(1.00	)	$	0.90

(a)The sum of the quarters do not add-up to the total due to the weighting of Limited Partner Units outstanding, rounding or the theoretical effects of FASB ASC 260-10-45-60 to Master Limited Partners earnings per unit.