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Commitments and Contingencies (Details) $ in Millions			1 Months Ended
	Nov. 25, 2024 USD ($)	Nov. 14, 2023 USD ($)	Oct. 31, 2021 patent	Dec. 31, 2024 USD ($)
Other Commitments [Line Items]
Jury awarded	$ 292.5
Punitive damages	$ 175.5
TwinStrand Biosciences And University Of Washington vs. Guardant Health, Inc.
Other Commitments [Line Items]
Gain contingency, patents allegedly infringed upon, number | patent			4
TwinStrand Biosciences And University Of Washington vs. Guardant Health, Inc. | Settled Litigation
Other Commitments [Line Items]
Loss contingency, damages awarded, value		$ 83.4
Percentage of royalty		6.00%
Reserve for payments related to litigation				$ 83.4

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Number of entity's patents that another entity has allegedly infringed.

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-Topic 450
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-Name Accounting Standards Codification
-Section 50
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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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