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3. Fair Value Measurements Contingent Consideration (Details) - Curiosity Diagnostics - USD ($)
$ in Millions
Dec. 31, 2022
Aug. 03, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High $ 70.0 $ 70.0
Measurement Input, Discount Rate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Business Combination, Contingent Consideration, Liability 5.40%