Portfolio Loans Covered by Loss Share (Covered loans) - Summary of Activity in the FDIC Loss Share Receivable (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
PORTFOLIO LOANS COVERED BY LOSS SHARE [Abstract]
FDIC loss share receivable	$ 25,508		$ 34,319
Net cash proceeds received from FDIC loss share receivable	4,212	7,442
FDIC Indemnification Asset, Period Increase (Decrease)	553
FDIC Indemnification Asset, Accretion of Discount	(4,753)
Loan impairment recapture	2,259
Reductions for payments on Covered assets in excess of expected cash flows	(2,658)
Amount of Estimated Clawback Liability	$ 1,600