PARENT COMPANY STATEMENTS (CONDENSED BALANCE SHEETS) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
ASSETS
Deposits with Lake City Bank	$ 2,581,756	$ 2,412,696
Other assets	39,899	45,075
Total assets	3,064,144	2,889,688
LIABILITIES
Subordinated debt	30,928	30,928
STOCKHOLDERS' EQUITY	297,739	273,200	246,997	279,994
Total liabilities and stockholders' equity	3,064,144	2,889,688
Parent Company [Member]
ASSETS
Deposits with Lake City Bank	1,285	508
Deposits with other depository institutions	248	248
Cash	1,533	756
Investments in banking subsidiary	320,465	298,465
Investments in other subsidiaries	1,191	928
Other assets	5,710	4,199
Total assets	328,899	304,348
LIABILITIES
Dividends payable and other liabilities	232	220
Subordinated debt	30,928	30,928
STOCKHOLDERS' EQUITY	297,739	273,200
Total liabilities and stockholders' equity	$ 328,899	$ 304,348