Annual report pursuant to Section 13 and 15(d)

Cover page

Cover page - USD ($)
$ in Billions
12 Months Ended
Dec. 31, 2021
Feb. 21, 2022
Jun. 30, 2021
Cover [Abstract]      
Document Type 10-K/A    
Document Annual Report true    
Document Period End Date Dec. 31, 2021    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 001-33989    
Entity Registrant Name LHC Group, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 71-0918189    
Entity Address, Address Line One 901 Hugh Wallis Road South    
Entity Address, City or Town Lafayette    
Entity Address, State or Province LA    
Entity Address, Postal Zip Code 70508    
City Area Code 337    
Local Phone Number 233-1307    
Title of 12(b) Security Common Stock, par value $0.01 per share    
Trading Symbol LHCG    
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 Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
ICFR Auditor Attestation Flag true    
Entity Public Float     $ 6.1
Entity Common Stock, Shares Outstanding   31,682,604  
Documents Incorporated by Reference DOCUMENTS INCORPORATED BY REFERENCENone.    
Amendment Flag false    
Document Fiscal Year Focus 2021    
Document Fiscal Period Focus FY    
Entity Central Index Key 0001303313