PARENT COMPANY CONDENSED FINANCIAL STATEMENTS: (Tables)

12 Months Ended

Dec. 31, 2015

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Schedule of Condensed Balance Sheet

	December 31,
(Dollar amounts in thousands)	2015		2014
ASSETS
Cash deposits in affiliated banks	$	1,782	$	3,639
Investments in subsidiaries	413,117		396,486
Land and headquarters building, net	5,588		5,791
Other	12		103
Total Assets	$	420,499	$	406,019
LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities
Dividends payable	$	6,243	$	6,341
Other liabilities	3,940		5,464
TOTAL LIABILITIES	10,183		11,805
Shareholders' Equity	410,316		394,214
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$	420,499	$	406,019

Schedule of Condensed Income Statement

CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
	Years Ended December 31,
(Dollar amounts in thousands)	2015			2014			2013
Dividends from subsidiaries	$	19,397		$	26,530		$	7,130
Other income	795			724			1,144
Other operating expenses	(2,314		)	(2,747		)	(3,113		)
Income before income taxes and equity in undistributed earnings of subsidiaries	17,878			24,507			5,161
Income tax benefit	815			1,156			988
Income before equity in undistributed earnings of subsidiaries	18,693			25,663			6,149
Equity in undistributed earnings of subsidiaries	11,503			8,109			25,385
Net income	$	30,196		$	33,772		$	31,534
Comprehensive income	$	35,324		$	33,212		$	25,037

Schedule of Condensed Cash Flow Statement

CONDENSED STATEMENTS OF CASH FLOWS
	Years Ended December 31,
(Dollar amounts in thousands)	2015			2014			2013
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$	30,196		$	33,772		$	31,534
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	203			196			173
Equity in undistributed earnings	(11,503		)	(8,109		)	(25,385		)
Contribution of shares to ESOP	1,294			1,253			1,218
Securities (gains) losses	—			—			(420		)
Restricted stock compensation	684			1,072			611
Increase (decrease) in other liabilities	(1,524		)	(473		)	(512		)
(Increase) decrease in other assets	188			155			485
NET CASH FROM OPERATING ACTIVITIES	19,538			27,866			7,704
CASH FLOWS FROM INVESTING ACTIVITIES:
Sales of securities available-for-sale	—			—			740
Purchase of furniture and fixtures	(65		)	(1,299		)	(5		)
NET CASH FROM INVESTING ACTIVITIES	(65		)	(1,299		)	735
CASH FLOWS FROM FINANCING ACTIVITIES:
Purchase of treasury stock	(8,698		)	(14,633		)	—
Dividends paid	(12,632		)	(12,949		)	(12,766		)
NET CASH FROM FINANCING ACTIVITES	(21,330		)	(27,582		)	(12,766		)
NET (DECREASE) INCREASE IN CASH	(1,857		)	(1,015		)	(4,327		)
CASH, BEGINNING OF YEAR	3,639			4,654			8,981
CASH, END OF YEAR	$	1,782		$	3,639		$	4,654
Supplemental disclosures of cash flow information:
Cash paid during the year for:
Interest	$	—		$	—		$	—
Income taxes	$	12,869		$	9,354		$	13,822