Leases (Details) $ in Thousands	1 Months Ended			3 Months Ended		6 Months Ended
	Oct. 31, 2027 USD ($)	Sep. 30, 2023 USD ($) ft²	Sep. 30, 2021 USD ($) ft²	Jun. 30, 2024 USD ($) ft²	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) ft² lease item	Jun. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)
Lessee, Lease, Description [Line Items]
Operating lease liabilities, current portion included in other accrued liabilities				$ 12,384		$ 12,384		$ 11,621
Operating lease liabilities, long-term portion				61,225		61,225		67,025
Operating lease liabilities				$ 73,609		73,609		$ 78,646
Noncash operating activities related to right-of-use assets						$ 600	$ 0
Weighted average remaining lease term				6 years 3 months 18 days		6 years 3 months 18 days
Weighted average discount rate (as a percent)				6.80%		6.80%
Lease expense				$ 3,600	$ 3,700	$ 7,200	7,500
Operating lease payments				$ 4,100	$ 3,000	$ 8,300	$ 5,200
Austin TX, Long-term Lease
Lessee, Lease, Description [Line Items]
Lease space (area) | ft²				94,000		94,000
Number of office space locations | lease						2
Term of lease				132 months		132 months
First Expansion Premises
Lessee, Lease, Description [Line Items]
Lease space (area) | ft²				32,500		32,500
Second Expansion Premises
Lessee, Lease, Description [Line Items]
Lease space (area) | ft²				65,222		65,222
Corporate Headquarters Lease
Lessee, Lease, Description [Line Items]
Lease space (area) | ft²				136,000		136,000
Number of office space locations | item						2
"First Space" Sublease
Lessee, Lease, Description [Line Items]
Number of office space locations | ft²						88,000
"Second Space" Sublease
Lessee, Lease, Description [Line Items]
Number of office space locations | ft²						48,000
Corporate Headquarters Lease Amendment
Lessee, Lease, Description [Line Items]
Annual lease payment						$ 9,300
Term of lease				48 months		48 months
Tukwila, WA Lease
Lessee, Lease, Description [Line Items]
Lease space (area) | ft²				10,000		10,000
Term of lease				62 months		62 months
Renewal term of lease				5 years		5 years
San Carlos, CA Sublease Amendment | Forecast
Lessee, Lease, Description [Line Items]
Annual lease payment	$ 10,600
South San Francisco, CA Lease
Lessee, Lease, Description [Line Items]
Lease space (area) | ft²				11,395		11,395
Annual lease payment						$ 900
Term of lease				36 months		36 months
Renewal term of lease				3 years		3 years
Pleasanton, CA Lease
Lessee, Lease, Description [Line Items]
Lease space (area) | ft²		16,319
Annual lease payment		$ 500
Term of lease		60 months
Laboratory space in Canada
Lessee, Lease, Description [Line Items]
Lease space (area) | ft²			7,107
Annual lease payment			$ 200
Term of lease			24 months
Certain workspaces and storage spaces | Minimum
Lessee, Lease, Description [Line Items]
Term of lease				1 year		1 year
Certain workspaces and storage spaces | Maximum
Lessee, Lease, Description [Line Items]
Term of lease				5 years		5 years