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Leases - Narrative (Details) $ in Thousands |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Nov. 19, 2021 USD ($) ft² option | Jun. 30, 2023 USD ($) ft² option | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) ft² option | Jun. 30, 2022 USD ($) | Dec. 23, 2022
Lessee Lease Description [Line Items] |  |  |  |  |  |
Estimated lease payments |  | $ 147,317 |  | $ 147,317 |  |
Short-term lease cost |  | 600 | $ 200 | 1,200 | $ 700 |
Research Facility in San Diego | California |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Lease term | 15 years |  |  |  |  |
Office space leases (in sq ft) | ft² | 144,000 |  |  |  |  |
Estimated lease payments | $ 119,000 |  |  |  |  |
Estimated payments for operating expenses | 3,000 |  |  |  |  |
Payments for leasehold improvements, net of tenant improvement allowances | $ 32,000 |  |  |  |  |
Operating lease renewal term | 10 years |  |  |  |  |
Maximum additional tenant improvement allowance |  | 7,200 |  | 7,200 |  |
Additional tenant improvement allowance liability |  | $ 700 |  | $ 700 |  |
Additional tenant improvement allowance interest per annum |  | 7.00% |  | 7.00% |  |
Research Facility in San Diego | California | Sorrento Valley Owner (DE) LLC |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Lease term |  |  |  |  |  | 6 months
Research Facility in San Diego | California | Maximum |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Number of options to renew | option | 1 |  |  |  |  |
Corporate Headquarters In Pasadena | California |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Office space leases (in sq ft) | ft² | 49,000 |  |  |  |  |
Corporate Headquarters In Pasadena | California | Colorado Owner, LLC |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Number of options to renew | option |  | 1 |  | 1 |  |
Operating lease renewal term |  | 5 years |  | 5 years |  |
Research Facility in Madison | Wisconsin |  |  |  |  |  |
Lessee Lease Description [Line Items] |  |  |  |  |  |
Office space leases (in sq ft) | ft² |  | 111,000 |  | 111,000 |  |
Number of options to renew | option |  | 2 |  | 2 |  |
Operating lease renewal term |  | 5 years |  | 5 years |  |

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