FINANCIAL INSTRUMENTS WITH OFF BALANCE SHEET RISK, Interest Rate Swaps (Details) (USD $) In Thousands, unless otherwise specified				12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Receive Fixed - Pay Floating Interest Rate Swaps [Member]	Dec. 31, 2012 Receive Fixed - Pay Floating Interest Rate Swaps [Member]	Dec. 31, 2013 Pay Fixed - Receive Floating Interest Rate Swaps [Member]	Dec. 31, 2012 Pay Fixed - Receive Floating Interest Rate Swaps [Member]	Dec. 31, 2013 Net Interest Rate Swaps [Member]	Dec. 31, 2012 Net Interest Rate Swaps [Member]
Derivative [Line Items]
Positions (in ones)				148	131	148	131
Derivative, Notional Amount				$ 502,833	$ 424,863	$ 502,833	$ 424,863	$ 1,005,666	$ 849,726
Derivative Assets, Interest Rate Swap Agreements, Fair Value Disclosure	21,624	28,252	22,600
Derivative Liabilities, Interest Rate Swap Agreements, Fair Value Disclosure	21,624	28,252	22,600
Asset				15,906	28,252	5,718	0	21,624	28,252
Liability				$ 5,718	$ 0	$ 15,906	$ 28,252	$ 21,624	$ 28,252
Receive rate (in hundredths)				4.58%	4.67%	2.31%	2.34%	3.45%	3.51%
Pay rate (in hundredths)				2.31%	2.34%	4.58%	4.67%	3.45%	3.51%
Life				5 years 11 months 17 days	6 years 4 months 11 days	5 years 11 months 17 days	6 years 4 months 11 days	5 years 11 months 17 days	6 years 4 months 11 days