Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2019	Mar. 04, 2020	Jun. 30, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	001-38900
Entity Registrant Name	THE PENNANT GROUP, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	83-3349931
Entity Address, Address Line One	1675 East Riverside Drive
Entity Address, Address Line Two	Suite 150
Entity Address, City or Town	Eagle
Entity Address, State or Province	ID
Entity Address, Postal Zip Code	83616
City Area Code	(208)
Local Phone Number	506-6100
Title of 12(b) Security	Common Stock, par value $0.001 per share
Trading Symbol	PNTG
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	false
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		27,885,252
Entity Public Float			$ 0
Entity Central Index Key	0001766400
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false