PARENT COMPANY STATEMENTS (CONDENSED STATEMENTS OF CASH FLOWS) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income	$ 38,839	$ 35,394	$ 30,662
Adjustments to net cash from operating activities:
Net cash from operating activities	62,965	50,592	51,402
Cash flow from investing activities	(312,520)	(58,720)	(176,733)
Repurchase of common stock	(399)	(421)	(244)
Net cash from financing activities	80,423	135,781	169,774
Net increase in cash and cash equivalents	(169,132)	127,653	44,443
Cash and cash equivalents at beginning of the year	232,237	104,584	60,141
Cash and cash equivalents at end of the year	63,105	232,237	104,584
Parent Company [Member]
Cash flows from operating activities:
Net income	38,839	35,394	30,662
Adjustments to net cash from operating activities:
Equity in undistributed income of subsidiaries	(31,542)	(21,476)	(21,943)
Other changes	989	265	447
Net cash from operating activities	8,285	14,184	9,166
Cash flow from investing activities	0	(250)	0
Proceeds from issuance of common stock	903	894	468
Repurchase of common stock	(399)	(421)	(244)
Dividends paid	(9,372)	(13,630)	(10,044)
Net cash from financing activities	(8,868)	(13,157)	(9,820)
Net increase in cash and cash equivalents	(583)	777	(654)
Cash and cash equivalents at beginning of the year	1,533	756	1,410
Cash and cash equivalents at end of the year	$ 950	$ 1,533	$ 756