GOODWILL AND INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Change in carrying amount of goodwill
Balance at the beginning of the period	$ 63,947	$ 63,947	$ 61,919
Acquired goodwill		953	2,028
Balance at the end of the period		64,900	63,947	61,919
Goodwill
Goodwill impairment loss	0
Acquired intangible assets
Accumulated amortization		(24,238)	(22,370)
Purchased intangibles, net		5,125	6,993
Aggregate amortization expense		1,868	1,835	1,939
Estimated amortization expense
2014		1,643
2015		1,402
2016		715
2017		347
2018		272
Core deposit intangibles
Acquired intangible assets
Purchased intangibles, gross		27,169	27,169
Other customer relationship intangibles
Acquired intangible assets
Purchased intangibles, gross		$ 2,194	$ 2,194