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SECURITIES - Securities Available for Sale (Details) - USD ($)	Mar. 31, 2025	Jun. 30, 2024
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	$ 1,116,087,000	$ 1,203,506,000
Gross Unrealized Gains	2,230,000	2,920,000
Gross Unrealized Losses	114,924,000	133,593,000
Allowance for Credit Losses	0	0
Fair Value	1,003,393,000	1,072,833,000
Debt securities
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	532,397,000	618,179,000
Gross Unrealized Gains	1,762,000	2,855,000
Gross Unrealized Losses	10,150,000	19,254,000
Allowance for Credit Losses	0	0
Fair Value	524,009,000	601,780,000
Asset-backed securities
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	69,962,000	80,305,000
Gross Unrealized Gains	117,000	217,000
Gross Unrealized Losses	476,000	82,000
Allowance for Credit Losses	0	0
Fair Value	69,603,000	80,440,000
Collateralized loan obligations
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	323,466,000	386,983,000
Gross Unrealized Gains	1,378,000	2,574,000
Gross Unrealized Losses	108,000	14,000
Allowance for Credit Losses	0	0
Fair Value	324,736,000	389,543,000
Corporate bonds
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	138,969,000	150,891,000
Gross Unrealized Gains	267,000	64,000
Gross Unrealized Losses	9,566,000	19,158,000
Allowance for Credit Losses	0	0
Fair Value	129,670,000	131,797,000
Mortgage-backed securities
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	583,690,000	585,327,000
Gross Unrealized Gains	468,000	65,000
Gross Unrealized Losses	104,774,000	114,339,000
Allowance for Credit Losses	0	0
Fair Value	479,384,000	471,053,000
Residential pass-through securities
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	429,942,000	429,473,000
Gross Unrealized Gains	7,000	2,000
Gross Unrealized Losses	84,355,000	92,211,000
Allowance for Credit Losses	0	0
Fair Value	345,594,000	337,264,000
Commercial pass-through securities
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	153,748,000	155,854,000
Gross Unrealized Gains	461,000	63,000
Gross Unrealized Losses	20,419,000	22,128,000
Allowance for Credit Losses	0	0
Fair Value	$ 133,790,000	$ 133,789,000

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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