Additional Area of New Office Building

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- Definition

Area of new office building.

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- Definition

Area of office.

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- Definition

Area of operating lease.

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No definition available.

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- Definition

Lessee, Finance Lease, Payment Upon Contract Termination

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- Definition

Number Of Lessees, Unaffiliated Company

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- Definition

Number of options to extend lease.

+ References

No definition available.

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- Definition

Number Of Properties To Be Subleased

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No definition available.

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- Definition

Term of lessee's finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Section 50
-Paragraph 3
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- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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- Definition

Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

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- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Commitments and Contingencies - Additional Information (Details) $ in Millions	1 Months Ended				2 Months Ended	3 Months Ended		6 Months Ended
	Feb. 28, 2026 ft²	Jul. 31, 2025 property company	Feb. 28, 2023 ft²	Feb. 28, 2019 ft² renewal	Jan. 31, 2025 ft² company	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2021 ft²	Jul. 31, 2020 USD ($)	Oct. 31, 2018 ft²	Aug. 31, 2018 ft²
Other Commitments [Line Items]
Letter of credit \| $						$ 6.0		$ 6.0		$ 6.0
Weighted average discount rate, percent						6.51%		6.51%
Weighted average remaining lease term (in years)						6 years 8 months 12 days		6 years 8 months 12 days
Sublease income \| $						$ 0.7	$ 0.8	$ 1.5	$ 1.2
Agreement term (in years)												20 years
Termination payment \| $												$ 4.3
Letter of Credit
Other Commitments [Line Items]
Letter of credit \| $						$ 4.3		$ 4.3		$ 4.3
HQ Lease
Other Commitments [Line Items]
Area of office space (in square feet)					46,011
Number of unaffiliated company lessees \| company					2
South San Francisco Building Two
Other Commitments [Line Items]
Number of unaffiliated company lessees \| company		1
Number of properties to be subleased \| property		1
Bellco \| Sublease Agreement \| Related Party
Other Commitments [Line Items]
Area of office space (in square feet)	1,944		2,218
Sublease, term of contract (in years)			115 months
South San Francisco, California
Other Commitments [Line Items]
Area of lease (in square feet)													14,943	68,000
Additional area of lease (in square feet)											47,566
Operating lease, extended term (in years)											8 years		8 years
Newark, California
Other Commitments [Line Items]
Operating lease, extended term (in years)				10 years
Area of operating lease (in square feet)				118,000
Number of options to extend lease \| renewal				2