Capital Ratios (Details)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012
Company's capital adequacy ratios
Minimum Tier1 risk-based capital as a percent of risk-weighted assets (as a percent)	4.00%
Minimum total risk-based capital as a percent of risk-weighted assets (as a percent)	8.00%
Tier 1 risk-based capital (as a percent)	13.15%	12.73%	14.02%
Total risk-based capital (as a percent)	14.40%	13.99%	15.29%
Tier 1 leverage (as a percent)	10.10%	9.87%	9.35%
SCBT
Company's capital adequacy ratios
Tier 1 risk-based capital (as a percent)	12.95%	12.51%	13.80%
Total risk-based capital (as a percent)	14.20%	13.78%	15.07%
Tier 1 leverage (as a percent)	9.96%	9.70%	9.21%