Other Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Other Borrowings
Fixed interest rate (as a percent)	6.06%	5.89%
Shot-term borrowings	$ 100,000
Total borrowings	491,904	$ 392,275
Short term borrowings, Average balance	243,014	10,959
Total borrowings, Average balance	$ 635,113	$ 397,113
Weighted average interest rate (as a percent)	5.71%	5.03%
Spread adjustments (as percent)	0.26161%
FHLB Advances
Other Borrowings
Fixed interest rate (as a percent)	5.57%
Shot-term borrowings	$ 100,000
Short term borrowings
Other Borrowings
Weighted average interest rate (as a percent)	5.08%	5.22%
SOFR | Unsecured line of credit
Other Borrowings
Spread on variable rate basis (as a percent)	1.50%
SCBT Capital Trust I junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.44%	6.56%
Long term borrowings	$ 12,372	$ 12,372
SCBT Capital Trust II junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.44%	6.56%
Long term borrowings	$ 8,248	$ 8,248
SCBT Capital Trust III junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.24%	6.36%
Long term borrowings	$ 20,619	$ 20,619
SAVB Capital Trust I junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	8.51%	6.93%
Long term borrowings	$ 6,186	$ 6,186
SAVB Capital Trust II junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.85%	6.97%
Long term borrowings	$ 4,124	$ 4,124
TSB Statutory Trust I junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.37%	6.49%
Long term borrowings	$ 3,093	$ 3,093
Southeastern Bank Financial Statutory Trust I junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.05%	6.17%
Long term borrowings	$ 10,310	$ 10,310
Southeastern Bank Financial Statutory Trust II junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.05%	6.17%
Long term borrowings	$ 10,310	$ 10,310
CSBC Statutory Trust I junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.22%	6.34%
Long term borrowings	$ 15,464	$ 15,464
Community Capital Statutory Trust I junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.20%	6.32%
Long term borrowings	$ 10,310	$ 10,310
FCRV Statutory Trust I junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.35%	6.47%
Long term borrowings	$ 5,155	$ 5,155
Provident Community Bancshares Capital Trust I junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.40%	5.48%
Long term borrowings	$ 4,124	$ 4,124
Provident Community Bancshares Capital Trust II junior subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	7.38%	6.50%
Long term borrowings	$ 8,248	$ 8,248
Fair Market Value Discount Trust Preferred Debt Acquired
Other Borrowings
Other long term debt acquired	$ (926)	$ (1,162)
Junior Subordinated Debt
Other Borrowings
Fixed interest rate (as a percent)	7.34%	6.39%
Long term borrowings	$ 117,637	$ 117,401
Long term borrowings, Average balance	$ 117,514	$ 117,277
Weighted average interest rate (as a percent)	7.05%	3.49%
Junior subordinated debt securities	$ 118,600
Junior Subordinated Debt | LIBOR | Minimum
Other Borrowings
Spread on variable rate basis (as a percent)	1.40%
Junior Subordinated Debt | LIBOR | Maximum
Other Borrowings
Spread on variable rate basis (as a percent)	2.85%
Landmark Bancshares subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	6.50%
Landmark Bancshares subordinated debt | LIBOR
Other Borrowings
Spread on variable rate basis (as a percent)	4.67%
CenterState Bank Corporation subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	5.75%	5.75%
Long term borrowings	$ 200,000	$ 200,000
CenterState Bank Corporation subordinated debt | SOFR
Other Borrowings
Spread on variable rate basis (as a percent)	5.62%
Atlantic Capital Bancshares, Inc. subordinated debt
Other Borrowings
Fixed interest rate (as a percent)	5.50%	5.50%
Long term borrowings	$ 75,000	$ 75,000
Atlantic Capital Bancshares, Inc. subordinated debt | LIBOR
Other Borrowings
Spread on variable rate basis (as a percent)	5.36%
Fair Market Value Premium subordinated debt acquired
Other Borrowings
Long term borrowings	$ 1,627	2,604
Long-term subordinated debt costs
Other Borrowings
Debt issuance cost	$ (2,360)	$ (2,730)
Subordinated Debt.
Other Borrowings
Fixed interest rate (as a percent)	5.68%	5.68%
Long term borrowings	$ 274,267	$ 274,874
Long term borrowings, Average balance	$ 274,585	$ 268,877
Weighted average interest rate (as a percent)	5.68%	5.70%
Long term borrowings
Other Borrowings
Fixed interest rate (as a percent)	6.18%	5.89%
Long term borrowings	$ 391,904	$ 392,275
Long term borrowings, Average balance	$ 392,099	$ 386,154
Weighted average interest rate (as a percent)	6.09%	5.03%