SECURITIES - Securities Available for Sale (Details) - USD ($)	Mar. 31, 2026	Jun. 30, 2025
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	$ 1,080,159,000	$ 1,125,111,000
Gross Unrealized Gains	2,374,000	2,015,000
Gross Unrealized Losses	99,208,000	114,157,000
Allowance for Credit Losses	0	0
Fair Value	983,325,000	1,012,969,000
Debt securities
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	443,408,000	532,212,000
Gross Unrealized Gains	1,466,000	1,250,000
Gross Unrealized Losses	5,475,000	10,602,000
Allowance for Credit Losses	0	0
Fair Value	439,399,000	522,860,000
Asset-backed securities
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	55,703,000	60,255,000
Gross Unrealized Gains	28,000	59,000
Gross Unrealized Losses	550,000	816,000
Allowance for Credit Losses	0	0
Fair Value	55,181,000	59,498,000
Collateralized loan obligations
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	226,167,000	322,407,000
Gross Unrealized Gains	435,000	956,000
Gross Unrealized Losses	506,000	118,000
Allowance for Credit Losses	0	0
Fair Value	226,096,000	323,245,000
Corporate bonds
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	161,538,000	149,550,000
Gross Unrealized Gains	1,003,000	235,000
Gross Unrealized Losses	4,419,000	9,668,000
Allowance for Credit Losses	0	0
Fair Value	158,122,000	140,117,000
Mortgage-backed securities
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	636,751,000	592,899,000
Gross Unrealized Gains	908,000	765,000
Gross Unrealized Losses	93,733,000	103,555,000
Allowance for Credit Losses	0	0
Fair Value	543,926,000	490,109,000
Collateralized mortgage obligations
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	24,894,000
Gross Unrealized Gains	0
Gross Unrealized Losses	154,000
Allowance for Credit Losses	0
Fair Value	24,740,000
Residential pass-through securities
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	462,345,000	440,168,000
Gross Unrealized Gains	464,000	329,000
Gross Unrealized Losses	73,490,000	83,178,000
Allowance for Credit Losses	0	0
Fair Value	389,319,000	357,319,000
Commercial pass-through securities
Schedule of Available for Sale Securities [Line Items]
Amortized Cost	149,512,000	152,731,000
Gross Unrealized Gains	444,000	436,000
Gross Unrealized Losses	20,089,000	20,377,000
Allowance for Credit Losses	0	0
Fair Value	$ 129,867,000	$ 132,790,000

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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