XML 53 R1.htm IDEA: XBRL DOCUMENT v3.25.4
Cover - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Feb. 27, 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 001-15781    
Entity Registrant Name BEACON FINANCIAL CORPORATION    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 04-3510455    
Entity Address, Address Line One 131 Clarendon Street    
Entity Address, City or Town Boston    
Entity Address, State or Province MA    
Entity Address, Postal Zip Code 02116    
City Area Code 617    
Local Phone Number 425-4600    
Title of 12(b) Security Common Stock, par value of $0.01 per share    
Trading Symbol BBT    
Security Exchange Name NYSE    
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    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction false    
Entity Shell Company false    
Entity Public Float     $ 1,140
Entity Common Stock, Shares Outstanding   83,816,086  
Documents Incorporated by Reference
None.
    
Entity Central Index Key 0001108134    
Amendment Flag false    
Document Fiscal Year Focus 2025    
Document Fiscal Period Focus FY