SECURITIES - OTHER THAN TEMPORARY IMPAIRMENT, CREDIT LOSSES RECOGNIZED IN EARNINGS (Details) - Non-agency $ in Thousands	12 Months Ended
Jun. 30, 2017 USD ($) security	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Beginning balance	$ (20,865)	$ (20,503)	$ (18,138)
Additions for the amounts related to the credit loss for which an other-than-temporary impairment was not previously recognized	(342)	(112)	(742)
Increases to the amount related to the credit loss for which other-than-temporary impairment was previously recognized	(1,622)	(453)	(1,623)
Credit losses realized for securities sold	7,301	203	0
Ending balance	$ (15,528)	(20,865)	(20,503)
Number of securities with cumulative credit losses \| security	22
Carrying value of securities with cumulative credit losses	$ 43,268
OTTI recognized in earnings	$ 1,964	$ 565	$ 2,365
Number of securities with other than temporary impairment \| security	6
Carrying value of securities with other than temporary impairment	$ 13,126

Available-for-sale and Held-to-maturity, Securities with Cumulative Credit Losses, Number

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- Definition

Securities with Cumulative Credit Losses, Carrying Amount

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- Definition

Securities with Other Than Temporary Impairment, Carrying Value

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- Definition

Securities With Other Than Temporary Impairment, Number

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- Definition

This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which a previous OTTI was recognized and the investor does not intend to sell the debt security and it is not more likely than not that the investor will be required to sell the debt security before recovery of its amortized cost basis.

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- Definition

This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which no such other than temporary impairment (OTTI) was previously recognized.

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- Definition

The cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (a component of shareholders' equity).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=SL6284393-111563

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8B
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=82897076&loc=SL6284393-111563

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- Definition

Amount of increase (decrease) in the cumulative amount of credit losses recognized in earnings related to debt securities held for which a portion of an other than temporary impairment (OTTI) was recognized in other comprehensive income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8B
-URI http://asc.fasb.org/extlink&oid=82897076&loc=SL6284393-111563

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This item represents reductions in the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security because of the sale of impaired securities during the period.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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