Commitments and Contingencies - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended				24 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2018	Sep. 30, 2024
Vetex Medical Limited [Member]
Commitments And Contingencies [Line Items]
Cash paid			$ 39,900,000
Deferred consideration, contractual value			$ 3,500,000
Installment payment beginning period			2024
Installment payment ending period			2027
Contingent consideration, contractual value			$ 3,500,000
Contingency period ending year			2027
Embolitech LLC [Member]
Commitments And Contingencies [Line Items]
Contingent payments upon achievement of regulatory milestones	$ 1,000,000.0
Installment payment beginning period	2023
Installment payment ending period	2024
CRO [Member]
Commitments And Contingencies [Line Items]
Contractual obligation remaining to be paid	$ 5,000,000
CRO [Member] | Minimum [Member]
Commitments And Contingencies [Line Items]
Gross contractual obligation	37,000,000
CRO [Member] | Maximum [Member]
Commitments And Contingencies [Line Items]
Gross contractual obligation	40,000,000
CRO [Member] | Maximum [Member] | CRO Pass-through Expenses [Member]
Commitments And Contingencies [Line Items]
Gross contractual obligation	$ 30,000,000
In Process Research and Development | Embolitech LLC [Member]
Commitments And Contingencies [Line Items]
Contingency period ending year	2033
Payments to acquire in-process research and development		$ 500,000	$ 1,000,000.0	$ 1,000,000.0	$ 5,000,000.0
In Process Research and Development | Embolitech LLC [Member] | Forecast [Member]
Commitments And Contingencies [Line Items]
Contractual obligation payable in fiscal 2022 through fiscal 2024						$ 2,000,000.0