XML 14 R1.htm IDEA: XBRL DOCUMENT v3.22.4
COVER - USD ($)
$ in Billions
 12 Months Ended
Dec. 31, 2022
Feb. 17, 2023
Jun. 30, 2022
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2022    
Current Fiscal Year End Date --12-31    
Document Transition Report false    
Entity File Number 0-19065    
Entity Registrant Name SANDY SPRING BANCORP, INC.    
Entity Incorporation, State or Country Code MD    
Entity Tax Identification Number 52-1532952    
Entity Address, Address Line One 17801 Georgia Avenue    
Entity Address, City or Town Olney    
Entity Address, State or Province MD    
Entity Address, Postal Zip Code 20832    
City Area Code 301    
Local Phone Number 774-6400    
Title of 12(b) Security Common Stock, par value $1.00 per share    
Trading Symbol SASR    
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     $ 1.7
Entity Common Stock, Shares Outstanding   44,674,054  
Documents Incorporated by Reference
Documents Incorporated By Reference
Part III: Portions of the definitive proxy statement for the Annual Meeting of Shareholders to be held on May 24, 2023 (the "Proxy Statement").
    
Amendment Flag false    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000824410