v3.25.2
Commitments and Contingencies (Details)
$ in Millions
1 Months Ended
Jul. 09, 2025
USD ($)
Nov. 25, 2024
USD ($)
Nov. 14, 2023
USD ($)
Oct. 31, 2021
patent
Jun. 30, 2025
lawsuit
Dec. 31, 2023
USD ($)
Other Commitments [Line Items]            
Jury awarded   $ 292.5        
Punitive damages   $ 175.5        
Number of lawsuits | lawsuit         2  
Number of lawsuits with an additional claim | lawsuit         1  
Subsequent Event            
Other Commitments [Line Items]            
Jury awarded $ 287.0          
Attorney's fees awarded $ 3.0          
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