Document and Entity Information - shares
6 Months Ended
Jun. 30, 2019
Aug. 08, 2019
Document And Entity Information [Abstract]    
Entity Registrant Name NantHealth, Inc.  
Document Type 10-Q  
Entity Central Index Key 0001566469  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Filer Category Accelerated Filer  
Document Period End Date Jun. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   110,631,941
Entity Emerging Growth Company true  
Entity Small Business true  
Entity Ex Transition Period true  
Entity Shell Company false