Employee Stock Purchase Plan, Maximum Earnings WIthheld Per Employee, Percent

No definition available.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

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

Number of additional shares authorized for issuance under share-based payment arrangement.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

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STOCK-BASED COMPENSATION - 2024 ESPP (Details) - Employee stock purchase plan - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Jan. 01, 2025	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Unrecognized share based compensation costs related to ESPP		$ 0.6		$ 0.6
Period for recognition of share-based compensation				1 month 6 days
The GRAIL, Inc. 2024 Employee Stock Purchase Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Additional shares authorized (in shares)	338,934
Number of shares authorized (in shares)	752,955
Shares available for grant (in shares)		752,955		752,955
Maximum earnings withheld for purchase of shares (as a percent)				15.00%
Purchase price as a percentage of fair value (as a percent)				85.00%
Shares granted (in shares)		0	0	0	0
Expected dividend rate (as a percent)				0.00%