CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net service revenue	$ 2,219,622	$ 2,063,204	$ 2,080,241
Cost of service revenue (excluding depreciation and amortization)	1,336,609	1,250,403	1,324,887
Gross margin	883,013	812,801	755,354
General and administrative expenses	696,435	632,847	596,006
Impairment of intangibles and other	937	1,849	7,734
Operating income	185,641	178,105	151,614
Interest expense	(4,338)	(4,129)	(11,155)
Income before income taxes and noncontrolling interests	181,303	173,976	140,459
Income tax expense	37,687	36,043	26,607
Net income	143,616	137,933	113,852
Less net income attributable to noncontrolling interests	27,888	26,337	18,126
Net income attributable to LHC Group, Inc.’s common stockholders	$ 115,728	$ 111,596	$ 95,726
Earnings per share - basic:
Net income attributable to LHC Group, Inc.’s common stockholders (in dollars per share)	$ 3.71	$ 3.59	$ 3.09
Earnings per share - diluted:
Net income attributable to LHC Group, Inc.’s common stockholders (in dollars per share)	$ 3.69	$ 3.56	$ 3.07
Weighted average shares outstanding:
Basic (in shares)	31,195,305	31,092,417	30,932,607
Diluted (in shares)	31,396,658	31,365,765	31,209,824
Revenue, product and service [Extensible Enumeration]	Service [Member]
Cost, product and service [Extensible Enumeration]	Service [Member]