v3.25.3

NET LOSS PER SHARE - Narrative (Details) - shares	Sep. 30, 2025	Dec. 31, 2024	Jun. 24, 2024	Jun. 23, 2024
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common stock, shares issued (in shares)	36,160,998	33,893,409		0
Common stock, shares outstanding (in shares)	36,160,998	33,893,409		0
Illumina, Inc.
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Stockholders' equity note, spinoff transaction, number of shares distributed (in shares)			31,000,000.0

Stockholders' Equity Note, Spinoff Transaction, Number Of Shares Distributed

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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GRAIL, Inc. 10-Q