FAIR VALUE - LEVEL 3 ASSETS MEASURED ON RECURRING BASIS (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements [Abstract]
Other-than-temporary-impairment	$ (2,365)	$ (2,802)	$ (3,501)
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance	46,912	58,617
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Total gains or losses for the period - Included in other comprehensive income	(1,325)	(125)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements [Abstract]
Purchases	1,801	0
Issues	0	529
Sales	0	0
Settlements	(8,518)	(11,546)
Other-than-temporary-impairment	(933)	(216)
Closing balance	38,824	46,912	58,617
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	(438)	(347)
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Fair Value Gain On Trading Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gains or losses for the period - Included in earnings	(234)	955
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Mortgage Banking
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Total gains or losses for the period - Included in earnings	1,121	(1,302)
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Collateralized Debt Obligations
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance	8,066	7,111
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Total gains or losses for the period - Included in earnings	(234)	955
Total gains or losses for the period - Included in other comprehensive income	0
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements [Abstract]
Purchases	0	0
Issues	0	0
Sales	0	0
Settlements	0	0
Other-than-temporary-impairment	0	0
Closing balance	7,832	8,066	7,111
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	(234)	955
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Non-Agency RMBS
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance	37,409	49,284
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Total gains or losses for the period - Included in other comprehensive income	(1,325)	(125)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements [Abstract]
Purchases	0	0
Issues	0	0
Sales	0	0
Settlements	(8,518)	(11,534)
Other-than-temporary-impairment	(933)	(216)
Closing balance	26,633	37,409	49,284
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	(1,325)	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Mortgage Servicing Rights
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance	562
Total gains or losses for the period - Included in earnings	(265)	45
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements [Abstract]
Purchases	1,801	0
Issues	0	529
Sales	0	0
Settlements	0	(12)
Other-than-temporary-impairment	0	0
Closing balance	2,098	562
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	(265)	45
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Derivative Instruments, net
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Opening balance	875	2,222
Transfers into Level 3	0	0
Transfers out of Level 3	0	0
Total gains or losses for the period - Included in earnings	1,386	(1,347)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases, Sales, Issues, Settlements [Abstract]
Purchases	0	0
Issues	0	0
Sales	0	0
Settlements	0	0
Other-than-temporary-impairment	0	0
Closing balance	2,261	875	$ 2,222
Change in unrealized gains or losses for the period included in earnings for assets held at the end of the reporting period	$ 1,386	$ (1,347)