AFFORDABLE HOUSING PARTNERSHIPS AND OTHER INVESTMENTS (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 item	Dec. 31, 2012 item	Dec. 31, 2011
AFFORDABLE HOUSING PARTNERSHIPS AND OTHER INVESTMENTS
Minimum compliance period to fully utilize the tax credits	15 years
Investments in affordable housing partnerships	$ 165,700,000	$ 185,600,000
Tax credit partnerships, Amount
Equity method	129,631,000	142,507,000
Cost method	35,145,000	42,591,000
Total tax credit partnerships	164,776,000	185,098,000
Tax exempt bonds	948,000	547,000
Grand total	165,724,000	185,645,000
Tax credit partnerships, Count
Equity method (number of investments)	35	35
Cost method (number of investments)	13	16
Grand Total (number of investments)	48	51
Other investments in affordable housing partnerships	69,200,000	45,900,000
Total unfunded commitments for investments	73,100,000	84,600,000
Usage of federal tax credits	34,200,000	18,700,000	11,100,000
Remaining tax credits	165,700,000
Investment amortization	27,300,000	18,100,000	17,300,000
Impairment charge	0	0
Amount of investments sold	$ 0	$ 0