FAIR VALUE DISCLOSURES (Changes in Level Three Assets and Liabilities Measured at Fair Value on a Recurring Basis) (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Mortgage Servicing Rights [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 51,296	$ 54,662
Net loss	(4,605)	(2,686)
Additions	2,499	1,460
Ending Balance	49,190	53,436
Net unrealized (losses) gains included in net income for the quarter relating to assets and liabilities held	(3,039)	(1,547)
Derivative Instruments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	623	878
Net loss	2,798	(263)
Ending Balance	3,421	615
Net unrealized (losses) gains included in net income for the quarter relating to assets and liabilities held	2,798	(263)
Available-for-sale Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance
Net loss
Other comprehensive income
Additions
Transfers in and/or out of Level 3
Ending Balance
Net unrealized (losses) gains included in net income for the quarter relating to assets and liabilities held