Leases - Narrative (Details)	3 Months Ended			9 Months Ended		15 Months Ended
	Jun. 30, 2025 USD ($) ft² option	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)	Jun. 30, 2025 USD ($) ft² option	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Jun. 29, 2025 ft²
Lessee Lease Description [Line Items]
Short-term lease cost | $	$ 0	$ 0		$ 0	$ 0
Corporate Headquarters In Pasadena | California
Lessee Lease Description [Line Items]
Office space leases (in sq ft) | ft²	49,000			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 San Diego | California
Lessee Lease Description [Line Items]
Office space leases (in sq ft) | ft²	144,000			144,000
Operating lease renewal term	10 years			10 years
Lease term	15 years			15 years
Proceeds from additional tenant improvement allowance | $			$ 3,100,000			$ 30,800,000
Research Facility in San Diego | California | Maximum
Lessee Lease Description [Line Items]
Number of options to renew | option	1			1
Research Facility in Madison | Wisconsin
Lessee Lease Description [Line Items]
Office space leases (in sq ft) | ft²	110,956			110,956			107,000
Number of options to renew | option	2			2
Operating lease renewal term	5 years			5 years