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- Definition

ContractAssetResearchExtensionFee .

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Milestone payments receivable.

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Non-refundable upfront payments received

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Number Of Licensed Product.

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- Definition

Receivable research extension fee.

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No definition available.

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- Definition

Research Extension Fee .

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No definition available.

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- Definition

Research extension fee variable consideration.

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- Definition

Research term.

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No definition available.

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Sponsored a license program, fee amount.

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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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- Definition

Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from contract modification which (increases) decreases obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.

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Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as noncurrent.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Cash received for fees during the current period. This element excludes cash proceeds from license fees.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

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Carrying amount of the par value of temporary equity outstanding. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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Collaboration Agreements - Additional Information (Details)	1 Months Ended			3 Months Ended		12 Months Ended
	Apr. 30, 2021 USD ($)	Aug. 31, 2020 USD ($) Program	Oct. 31, 2018 Program	Jun. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2021 USD ($)
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Proceeds from fees received						$ 14,000,000.0
Accounts receivable current, research extension fee						2,000,000.0
Contract asset, research extension fee						8,000,000.0
Receivable research extension fee						24,000,000.0
2018 Gilead Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Research term			3 years
Number of licensed product \| Program			5
Non-refundable upfront payment received						50,000,000.0		$ 50,000,000.0
Milestone payments receivable								$ 1,700,000,000
Gilead Letter Agreement [Member] \| License Revenue [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Contract with customer liability, revenue recognized							$ 700,000
Amended Gilead Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Research term		7 years
Number of licensed product \| Program		15
Non-refundable upfront payment received						125,000,000.0
Milestone payments receivable		$ 410,000,000.0
Temporary equity, par value		125,000,000.0
Revenue recognized, cumulative catch-up adjustment					$ (11,300,000)
Research extension fee							12,000,000.0		$ 12,000,000.0
Research extension fees, variable consideration						$ 12,000,000.0
Contract with customer liability, revenue recognized				$ 11,000,000.0
License fee amount	$ 11,000,000.0
Amended Gilead Agreement [Member] \| Minimum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Equity method investment, ownership percentage						10.00%
Amended Gilead Agreement [Member] \| Series B-1 Preferred Stock [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Temporary equity, par value		$ 20,000,000.0
Gilead Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Transaction price allocated to performance obligation						$ 199,000,000.0
Short-term deferred revenue						26,000,000.0	32,000,000.0
Long-term deferred revenue						114,700,000	120,800,000
Gilead Agreement [Member] \| Collaboration Revenue [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Contract with customer liability, revenue recognized						26,000,000.0	$ 7,000,000.0
Gilead Agreement Based Performance [Member] \| License Revenue [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
License fee amount received, recognized as revenue						$ 11,000,000.0