PARENT COMPANY STATEMENTS (Tables)

12 Months Ended

Dec. 31, 2017

Condensed Financial Information Of Parent Company Only Disclosure [Abstract]

Schedule of Condensed Balance Sheet

CONDENSED BALANCE SHEETS

	December 31,
(dollars in thousands)	2017	2016
ASSETS
Deposits with Lake City Bank	$850	$3,467
Deposits with other depository institutions	4,969	4,636
Cash	5,819	8,103
Investments in banking subsidiary	482,585	441,389
Investments in other subsidiaries	3,552	3,471
Other assets	7,789	5,206
Total assets  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	$499,745	$458,169
LIABILITIES
Dividends payable and other liabilities	$239	$263
Subordinated debt	30,928	30,928
STOCKHOLDERS' EQUITY	468,578	426,978
Total liabilities and stockholders' equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	$499,745	$458,169

Schedule of Condensed Income Statement

CONDENSED STATEMENTS OF INCOME

	Years Ended December 31,
(dollars in thousands)	2017	2016	2015
Dividends from Lake City Bank	$21,822	$20,622	$10,257
Dividends from non-bank subsidiaries	1,030	1,035	1,031
Other income	57	50	98
Interest expense on subordinated debt	(1,349)	(1,190)	(1,063)
Miscellaneous expense	(6,491)	(5,006)	(3,231)
INCOME BEFORE INCOME TAXES AND EQUITY IN
UNDISTRIBUTED INCOME OF SUBSIDIARIES	15,069	15,511	7,092
Income tax benefit	2,688	2,483	1,655
INCOME BEFORE EQUITY IN UNDISTRIBUTED
INCOME OF SUBSIDIARIES	17,757	17,994	8,747
Equity in undistributed income of subsidiaries	39,573	34,090	37,620
NET INCOME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	$57,330	$52,084	$46,367
COMPREHENSIVE INCOME	$59,047	$47,555	$44,679

Schedule of Condensed Cash Flow Statement

CONDENSED STATEMENTS OF CASH FLOWS

	Years Ended December 31,
(dollars in thousands)	2017	2016	2015
Cash flows from operating activities:
Net income	$57,330	$52,084	$46,367
Adjustments to net cash from operating activities:
Equity in undistributed income of subsidiaries	(39,573)	(34,090)	(37,620)
Other changes	3,586	3,818	3,647
Net cash from operating activities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	21,343	21,812	12,394
Cash flows from financing activities
Payments (Proceeds) from issuance of common stock	(1,736)	614	12
Purchase of treasury stock	(495)	(458)	(455)
Dividends paid	(21,396)	(18,200)	(15,697)
Cash flows from financing activities	(23,627)	(18,044)	(16,140)
Net increase in cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	(2,284)	3,768	(3,746)
Cash and cash equivalents at beginning of the year	8,103	4,335	8,081
Cash and cash equivalents at end of the year  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	$5,819	$8,103	$4,335