Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2013

Equity [Abstract]

Summary of Required Regulatory Capital

Required Regulatory Capital 

						Minimum for Capital Adequacy Purpose					Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions
	Amount		Ratio			Amount		Ratio			Amount		Ratio
	(Dollars in thousands)
SEACOAST BANKING CORP (CONSOLIDATED)
At December 31, 2013:
Total Capital (to risk-weighted assets)	$	227,310		16.88	%	$	107,757		>8.00	%		N/A		N/A
Tier 1 Capital (to risk-weighted assets)		210,433		15.62			53,878		>4.00	%		N/A		N/A
Tier 1 Capital (to adjusted average assets)		210,433		9.59			92,234		>4.00	%		N/A		N/A
At December 31, 2012:
Total Capital (to risk-weighted assets)	$	227,428		18.33	%	$	99,247		>8.00	%		N/A		N/A
Tier 1 Capital (to risk-weighted assets)		211,839		17.08			49,624		>4.00	%		N/A		N/A
Tier 1 Capital (to adjusted average assets)		211,839		10.04			84,377		>4.00	%		N/A		N/A
SEACOAST NATIONAL BANK (A WHOLLY OWNED BANK SUBSIDIARY)
At December 31, 2013:
Total Capital (to risk-weighted assets)	$	225,102		16.74	%	$	107,571		>8.00	%	$	134,463		>10.00	%
Tier 1 Capital (to risk-weighted assets)		208,253		15.49			53,785		>4.00	%		80,678		>  6.00	%
Tier 1 Capital (to adjusted average assets)		208,253		9.51			87,636		>4.00	%		109,545		>  5.00	%
At December 31, 2012:
Total Capital (to risk-weighted assets)	$	220,433		17.79	%	$	99,116		>8.00	%	$	123,895		>10.00	%
Tier 1 Capital (to risk-weighted assets)		204,864		16.54			49,558		>4.00	%		74,337		>  6.00	%
Tier 1 Capital (to adjusted average assets)		204,864		9.72			84,312		>4.00	%		105,389		>  5.00	%

N/A—Not Applicable