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Summary of Significant Accounting Policies - Operations, Segments (Details) $ in Millions | 12 Months Ended
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Dec. 31, 2019 USD ($) subsidiary county
Nature of Operations |
Number of unconsolidated subsidiaries | subsidiary | 13
Investment in unconsolidated subsidiaries |
Nature of Operations |
Trust preferred securities to be issued | $ 115.0
SCBT Capital Trust I |
Nature of Operations |
Trust preferred securities to be issued | 12.0
SCBT Capital Trust II |
Nature of Operations |
Trust preferred securities to be issued | 8.0
SCBT Capital Trust III |
Nature of Operations |
Trust preferred securities to be issued | 20.0
TSB Statutory Trust I |
Nature of Operations |
Trust preferred securities to be issued | 3.0
SAVB Capital Trust I |
Nature of Operations |
Trust preferred securities to be issued | 6.0
SAVB Capital Trust II |
Nature of Operations |
Trust preferred securities to be issued | 4.0
SBFST Capital Trust ! |
Nature of Operations |
Trust preferred securities to be issued | 10.0
SBFST Capital Trust II |
Nature of Operations |
Trust preferred securities to be issued | 10.0
Provident Community Bancshares Capital Trust I |
Nature of Operations |
Trust preferred securities to be issued | 4.0
FCRV Statutory Trust I |
Nature of Operations |
Trust preferred securities to be issued | 5.0
Community Capital Statutory Trust I |
Nature of Operations |
Trust preferred securities to be issued | 10.0
CSBC Statutory Trust I |
Nature of Operations |
Trust preferred securities to be issued | 15.0
Provident Community Bancshares Capital Trust II |
Nature of Operations |
Trust preferred securities to be issued | $ 8.0
South Carolina |
Nature of Operations |
Number of counties | county | 29
NORTH CAROLINA |
Nature of Operations |
Number of counties | county | 9
Northeast Georgia |
Nature of Operations |
Number of counties | county | 17
VIRGINIA |
Nature of Operations |
Number of counties | county | 4

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