COMPREHENSIVE LOSS - Schedule of Comprehensive (Loss) Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income (loss) before taxes	$ 31,819	$ 10,262	$ 7,845	$ (18,586)
Tax effect	(9,173)	(2,943)	(2,219)	5,292
Total Other Comprehensive Income (Loss)	22,646	7,319	5,626	(13,294)
Net unrealized loss on securities available for sale
Accumulated Other Comprehensive Income Loss [Line Items]
OCI, before reclassifications, before tax	42,048	1,328	13,546	(48,037)
Reclassification from AOCI, before tax	18,135	15,227	18,135	15,227
Fair value adjustments on derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
OCI, before reclassifications, before tax	(28,350)	(6,287)	(23,712)	14,263
Benefit plan adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Other comprehensive income (loss) before taxes	(14)	(6)	(124)	(39)
Net actuarial gain (loss)
Accumulated Other Comprehensive Income Loss [Line Items]
OCI, before reclassifications, before tax	(14)	(6)	(29)	(12)
Reclassification from AOCI, before tax	$ 0	$ 0	$ (95)	$ (27)

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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