Cover - shares	9 Months Ended
	Sep. 30, 2020	Nov. 06, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	001-37792
Entity Registrant Name	NantHealth, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-3019889
Entity Address, Address Line One	9920 Jefferson Blvd.
Entity Address, City or Town	Culver City,
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	90232
City Area Code	310
Local Phone Number	883-1300
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	NH
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		111,214,133
Entity Central Index Key	0001566469
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false