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	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Mortgage Servicing Rights [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 37,882	$ 30,174
Net income (loss)	1,037	(8,997)
Purchases, sales, issuances and settlements, net	12,106	13,385
Ending Balance	51,025	34,562
Net unrealized (losses) gains included in net income for the quarter relating to assets and liabilities held	(240)	(3,206)
Derivative Instruments [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	2,911	342
Net income (loss)	(3,293)	1,669
Ending Balance	(382)	2,011
Net unrealized (losses) gains included in net income for the quarter relating to assets and liabilities held	(7,245)	(811)
Available-for-sale Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance
Net income (loss)
Other comprehensive income
Purchases, sales, issuances and settlements, net
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