Commitments and Contingencies - Additional Information (Detail) ft² in Thousands		3 Months Ended		9 Months Ended
	Dec. 20, 2021 USD ($) ft² a	Jun. 30, 2022 USD ($) ft²	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) ft² a	Jun. 30, 2021 USD ($)
Other Commitments [Line Items]
Contingent liabilities		$ 0		$ 0
Technology License Commitments
Other Commitments [Line Items]
Milestone payments		$ 0	$ 0	$ 0	$ 0
Verona Technology Park | Wisconsin
Other Commitments [Line Items]
Land purchased, number of acres | a	13			13
Drug Manufacturing Facility | Wisconsin
Other Commitments [Line Items]
Planned area of the site (in sq ft) | ft²	160	160		160
Laboratory and Office Facility | Wisconsin
Other Commitments [Line Items]
Planned area of the site (in sq ft) | ft²	140	140		140
Facilities | Minimum
Other Commitments [Line Items]
Amount intends to invest for buildout of the facilities	$ 200,000,000
Facilities | Maximum
Other Commitments [Line Items]
Amount intends to invest for buildout of the facilities	$ 250,000,000