Cover Page - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Feb. 24, 2022	Jun. 30, 2021
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
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	3000 RDU Center Drive, Suite 200
Entity Address, Postal Zip Code	27500
Entity Address, City or Town	Morrisville,
Entity Address, State or Province	NC
City Area Code	855)
Local Phone Number	949-6268
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	NH
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 99.0
Entity Common Stock, Shares Outstanding		115,520,244
Documents Incorporated by Reference	As noted herein, the information called for by Part III is incorporated by reference to specified portions of the Registrant’s definitive proxy statement to be filed in conjunction with the Registrant’s 2022 Annual Meeting of Stockholders, which is expected to be filed not later than 120 days after the Registrant’s fiscal year ended December 31, 2021.
Entity Central Index Key	0001566469
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Amendment Flag	false