LOANS AND ALLOWANCE FOR LOAN LOSSES (Details 16) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
RAL Originations:
RALs originated and retained on balance sheet	$ 2,566,766,000				$ 2,626,468,000				$ 2,566,766,000	$ 2,626,468,000
RAL Losses:
Losses for RALs retained, net	503,000	2,200,000	905,000	(625,000)	1,324,000	2,083,000	466,000	11,170,000	2,983,000	15,043,000	17,966,000
Refund Anticipation Loans
RAL Originations:
RALs originated and retained on balance sheet					796,015,000					796,015,000	1,038,862,000
RAL Losses:
Losses for RALs retained, net									(845,000)	6,876,000	11,560,000
Period from origination during which loans were repaid by IRS or applicable taxing authority									14 days
Minimum period for charging off outstanding loan									30 days
Amount of loan remained uncollected					$ 10,500,000					$ 10,500,000	$ 14,300,000
Portion of loan remained uncollected (as a percent)	1.31%								1.31%		1.38%