Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Mar. 31, 2022
Statement Of Income And Comprehensive Income [Abstract]
Net sales	$ 377,692	$ 396,255	$ 593,951	$ 655,963
Cost of sales	269,519	273,795	438,199	444,894
Gross profit	108,173	122,460	155,752	211,069
Selling, general and administrative expenses	74,460	70,822	147,904	133,991
Operating income	33,713	51,638	7,848	77,078
Other expenses:
Interest expense	10,774	4,010	20,073	8,158
Total other expenses	10,774	4,010	20,073	8,158
Income (loss) before income taxes	22,939	47,628	(12,225)	68,920
Income tax expense (benefit)	6,666	11,810	(2,662)	16,395
Net income (loss)	16,273	35,818	(9,563)	52,525
Other comprehensive income (loss):
Unrealized gain (loss) due to change in fair value of derivatives, net of tax	(1,466)		(3,262)
Total other comprehensive income (loss)	(1,466)		(3,262)
Comprehensive income (loss)	$ 14,807	$ 35,818	$ (12,825)	$ 52,525
Net income (loss) per common share:
Basic	$ 0.11	$ 0.23	$ (0.06)	$ 0.34
Diluted	$ 0.11	$ 0.23	$ (0.06)	$ 0.34
Weighted-average common shares outstanding:
Basic	150,713,075	154,661,277	150,812,859	154,551,589
Diluted	151,268,535	156,121,476	150,812,859	156,560,502