XML 111 R1.htm IDEA: XBRL DOCUMENT v3.25.4
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Mar. 06, 2026
Jun. 25, 2025
Document Information [Line Items]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2025    
Document Transition Report false    
Securities Act File Number 001-36556    
Entity Registrant Name EL POLLO LOCO HOLDINGS, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 20-3563182    
Entity Address, Address Line One 575 Anton Blvd.    
Entity Address, Address Line Two Suite 1100    
Entity Address, City or Town Costa Mesa    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92626    
City Area Code 714    
Local Phone Number 599-5000    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Accelerated Filer    
Smaller reporting company false    
Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Shell Company false    
Entity Public Float     $ 133.9
Entity Common Stock, Shares Outstanding   29,956,259  
Documents Incorporated by Reference [Text Block]

Part III hereof incorporates by reference certain portions of the registrant’s definitive proxy statement for its 2026 annual meeting of stockholders to be filed not later than 120 days after the end of the registrant’s 2025 fiscal year.

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Auditor Name BDO USA, P.C.    
Auditor Firm ID 243    
Auditor Location Costa Mesa, California    
Entity Central Index Key 0001606366    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false    
Common Stock, par value $0.01 per share      
Document Information [Line Items]      
Title of 12(b) Security Common Stock, par value $0.01 per share    
Trading Symbol LOCO    
Security Exchange Name NASDAQ    
Rights to Purchase Series A Preferred Stock, par value $0.01 per share      
Document Information [Line Items]      
Title of 12(b) Security Rights to Purchase Series A Preferred Stock, par value $0.01 per share    
No Trading Symbol Flag true    
Security Exchange Name NASDAQ