CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF STOCKHOLDERS' EQUITY AND NET PARENT INVESTMENT - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings/ (Accumulated Deficit)	Net Parent Investment	Non-Controlling Interest	Treasury Stock
Equity, beginning balance at Dec. 31, 2018	$ 65,288	$ 0	$ 0	$ 0	$ 55,856	$ 9,432
Equity, beginning balance (in shares) at Dec. 31, 2018		0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interest attributable to subsidiary equity plan	341				(317)	658
Net Income (Loss) Attributable to Noncontrolling Interest	150					150
Net transfer from parent	4,411				4,411
Net income attributable to The Pennant Group, Inc.	1,334				1,334
Equity, ending balance at Mar. 31, 2019	71,524	$ 0	0	0	61,284	10,240
Equity, ending balance (in shares) at Mar. 31, 2019		0
Equity, beginning balance at Dec. 31, 2018	65,288	$ 0	0	0	55,856	9,432
Equity, beginning balance (in shares) at Dec. 31, 2018		0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Noncontrolling Interest	350
Net income attributable to The Pennant Group, Inc.	4,821
Equity, ending balance at Jun. 30, 2019	86,488	$ 0	0	0	73,315	13,173
Equity, ending balance (in shares) at Jun. 30, 2019		0
Equity, beginning balance at Mar. 31, 2019	71,524	$ 0	0	0	61,284	10,240
Equity, beginning balance (in shares) at Mar. 31, 2019		0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interest attributable to subsidiary equity plan	236				(2,497)	2,733
Net Income (Loss) Attributable to Noncontrolling Interest	200					200
Net transfer from parent	11,041				11,041
Net income attributable to The Pennant Group, Inc.	3,487				3,487
Equity, ending balance at Jun. 30, 2019	86,488	$ 0	0	0	$ 73,315	$ 13,173
Equity, ending balance (in shares) at Jun. 30, 2019		0
Equity, beginning balance at Dec. 31, 2019	71,111	$ 28	74,882	(3,799)			$ 0
Equity, beginning balance (in shares) at Dec. 31, 2019		28,435					0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to The Pennant Group, Inc.	2,980			2,980
Stock-based compensation	1,956		1,956
Issuance of common stock from the exercise of stock options	138		138
Issuance of common stock from the exercise of stock options (in shares)		38
Issuance/(cancellation) of restricted stock (in shares)		3
Equity, ending balance at Mar. 31, 2020	76,185	$ 28	76,976	(819)			$ 0
Equity, ending balance (in shares) at Mar. 31, 2020		28,476					0
Equity, beginning balance at Dec. 31, 2019	71,111	$ 28	74,882	(3,799)			$ 0
Equity, beginning balance (in shares) at Dec. 31, 2019		28,435					0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Noncontrolling Interest	0
Net income attributable to The Pennant Group, Inc.	7,317
Equity, ending balance at Jun. 30, 2020	82,501	$ 28	79,012	3,518			$ (57)
Equity, ending balance (in shares) at Jun. 30, 2020		28,514					(2)
Equity, beginning balance at Mar. 31, 2020	76,185	$ 28	76,976	(819)			$ 0
Equity, beginning balance (in shares) at Mar. 31, 2020		28,476					0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Noncontrolling Interest	0
Net income attributable to The Pennant Group, Inc.	4,337			4,337
Stock-based compensation	1,959		1,959
Issuance of common stock from the exercise of stock options	77		77
Issuance of common stock from the exercise of stock options (in shares)		20
Issuance/(cancellation) of restricted stock (in shares)		20
Shares of common stock used to satisfy tax withholding	(57)						$ (57)
Shares of common stock used to satisfy tax withholding (in shares)		(2)					2
Equity, ending balance at Jun. 30, 2020	$ 82,501	$ 28	$ 79,012	$ 3,518			$ (57)
Equity, ending balance (in shares) at Jun. 30, 2020		28,514					(2)