XML 255 R1.htm IDEA: XBRL DOCUMENT v3.25.4
Cover Page - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2025
Feb. 19, 2026
Jun. 30, 2025
Document and Entity Information [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 001-34963    
Entity Registrant Name LPL Financial Holdings Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 20-3717839    
Entity Address, Address Line One 4707 Executive Drive,    
Entity Address, City or Town San Diego,    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92121    
City Area Code (800)    
Local Phone Number 877-7210    
Title of 12(b) Security Common Stock — $0.001 par value per share    
Trading Symbol LPLA    
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    
Entity Shell Company false    
Entity Public Float     $ 29.9
Entity Common Stock, Shares Outstanding   80,080,181  
Documents Incorporated by Reference [Text Block]
Portions of the definitive Proxy Statement for the Annual Meeting of Stockholders, which the Company intends to file within 120 days of the fiscal year ended December 31, 2025, are incorporated by reference into Part III.
    
Entity Central Index Key 0001397911    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY    
Amendment Flag false    
Document Financial Statement Error Correction [Flag] false