v3.26.1
REVENUE - Schedule of Total Revenue by Type and by U.S versus Rest of World (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Disaggregation of Revenue [Line Items]    
Total revenue $ 200.4 $ 195.9
U.S.    
Disaggregation of Revenue [Line Items]    
Total revenue 187.0 181.6
RoW    
Disaggregation of Revenue [Line Items]    
Total revenue 13.4 14.3
Cancer Care Continuum    
Disaggregation of Revenue [Line Items]    
Total revenue 120.2 115.6
Cancer Care Continuum | U.S.    
Disaggregation of Revenue [Line Items]    
Total revenue 106.8 101.4
Cancer Care Continuum | RoW    
Disaggregation of Revenue [Line Items]    
Total revenue 13.4 14.2
Prenatal Health    
Disaggregation of Revenue [Line Items]    
Total revenue 41.9 49.3
Prenatal Health | U.S.    
Disaggregation of Revenue [Line Items]    
Total revenue 41.9 49.2
Prenatal Health | RoW    
Disaggregation of Revenue [Line Items]    
Total revenue 0.0 0.1
Mental Health    
Disaggregation of Revenue [Line Items]    
Total revenue 38.3 31.0
Mental Health | U.S.    
Disaggregation of Revenue [Line Items]    
Total revenue 38.3 31.0
Mental Health | RoW    
Disaggregation of Revenue [Line Items]    
Total revenue $ 0.0 $ 0.0