XML 17 R1.htm IDEA: XBRL DOCUMENT v3.20.4
Document and Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2020
Feb. 22, 2021
Jun. 30, 2020
Document and Entity Information      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Dec. 31, 2020    
Entity File Number 001-12669    
Entity Registrant Name SOUTH STATE CORP    
Entity Incorporation, State or Country Code SC    
Entity Tax Identification Number 57-0799315    
Entity Address, Address Line One 1101 First Street South, Suite 202,    
Entity Address, City or Town Winter Haven    
Entity Address, State or Province FL    
Entity Address, Postal Zip Code 33880    
City Area Code 863    
Local Phone Number 293-4710    
Title of 12(b) Security Common Stock    
Trading Symbol SSB    
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 false    
Entity Shell Company false    
Entity Public Float     $ 3,336,684,000
Entity Common Stock, Shares Outstanding   71,032,588  
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2020    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000764038    
Amendment Flag false