XML 18 R1.htm IDEA: XBRL DOCUMENT v3.25.4
Cover Page - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Feb. 11, 2026
Jun. 30, 2025
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 0-12015    
Entity Registrant Name HEALTHCARE SERVICES GROUP, INC.    
Entity Incorporation, State Code PA    
I.R.S. Employer Identification No. 23-2018365    
Entity Address, Address Line One 3220 Tillman Drive    
Entity Address, Address Line Two Suite 300    
Entity Address, City or Town Bensalem    
Entity Address, State or Province PA    
Entity Address, Postal Zip Code 19020    
City Area Code 215    
Local Phone Number 639-4274    
Title of 12(b) Security Common Stock, $0.01 par value    
Trading Symbol HCSG    
Security Exchange Name NASDAQ    
Entity Well-known Seasoned Issuer Yes    
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    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 897
Entity Common Stock, Shares Outstanding   70,267,582  
Documents Incorporated by Reference
Portions of the Definitive Proxy Statement for the registrant’s 2026 Annual Meeting of Shareholders (the “Proxy Statement”), to be filed within 120 days of the end of the fiscal year ended December 31, 2025, are incorporated by reference in Part III hereof. Except with respect to information specifically incorporated by reference in this Form 10-K, the Proxy Statement is not deemed to be filed as part hereof.
    
Amendment Flag false    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000731012