Other Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Other Borrowings
Other borrowings	$ 55,358	$ 55,158
SCBT Capital Trust III junior subordinated debt
Other Borrowings
Other borrowings	$ 20,619	$ 20,619
SCBT Capital Trust III junior subordinated debt | Until September 15, 2015
Other Borrowings
Fixed interest rate (as a percent)	5.92%	5.92%
SCBT Capital Trust III junior subordinated debt | After September 15, 2015
Other Borrowings
Spread on variable rate basis (as a percent)	1.59%	1.59%
SCBT Capital Trust I junior subordinated debt
Other Borrowings
Spread on variable rate basis (as a percent)	1.79%	1.79%
Other borrowings	$ 12,372	$ 12,372
SCBT Capital Trust II junior subordinated debt
Other Borrowings
Other borrowings	$ 8,248	$ 8,248
SCBT Capital Trust II junior subordinated debt | Until June 15, 2010
Other Borrowings
Fixed interest rate (as a percent)	6.37%	6.37%
SCBT Capital Trust II junior subordinated debt | After June 15, 2010
Other Borrowings
Spread on variable rate basis (as a percent)	1.79%	1.79%
SAVB Capital Trust I junior subordinated debt
Other Borrowings
Spread on variable rate basis (as a percent)	2.85%	2.85%
Other borrowings	$ 6,072	$ 5,958
Discount	$ 114
SAVB Capital Trust II junior subordinated debt
Other Borrowings
Spread on variable rate basis (as a percent)	2.20%	2.20%
Other borrowings	$ 4,025	$ 3,926
Discount	$ 99	$ 99
TSB Statutory Trust I junior subordinated debt
Other Borrowings
Spread on variable rate basis (as a percent)	1.72%	1.72%
Other borrowings	$ 3,093	$ 3,093
Other
Other Borrowings
Other borrowings	$ 929	$ 942