Revenue (Tables)

6 Months Ended

Mar. 31, 2023

Revenue From Contract With Customer [Abstract]

Summary of Rebate Activity

The rebate activity was as follows (in thousands):

	Three Months Ended March 31,						Six Months Ended March 31,
	2023			2022			2023			2022
Beginning balance	$	61,066		$	53,841		$	56,542		$	47,648
Rebate expense		29,703			30,402			45,419			46,552
Rebate payments		(18,028	)		(44,097	)		(29,220	)		(54,054	)
Ending balance	$	72,741		$	40,146		$	72,741		$	40,146