Securities - Securities Available for Sale (Details) - USD ($)	Jun. 30, 2025	Jun. 30, 2024
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 1,125,111,000	$ 1,203,506,000
Gross Unrealized Gains	2,015,000	2,920,000
Gross Unrealized Losses	114,157,000	133,593,000
Allowance for Credit Losses	0	0
Investment securities available for sale	1,012,969,000	1,072,833,000
Total debt securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	532,212,000	618,179,000
Gross Unrealized Gains	1,250,000	2,855,000
Gross Unrealized Losses	10,602,000	19,254,000
Allowance for Credit Losses	0	0
Investment securities available for sale	522,860,000	601,780,000
Asset-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	60,255,000	80,305,000
Gross Unrealized Gains	59,000	217,000
Gross Unrealized Losses	816,000	82,000
Allowance for Credit Losses	0	0
Investment securities available for sale	59,498,000	80,440,000
Collateralized loan obligations
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	322,407,000	386,983,000
Gross Unrealized Gains	956,000	2,574,000
Gross Unrealized Losses	118,000	14,000
Allowance for Credit Losses	0	0
Investment securities available for sale	323,245,000	389,543,000
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	149,550,000	150,891,000
Gross Unrealized Gains	235,000	64,000
Gross Unrealized Losses	9,668,000	19,158,000
Allowance for Credit Losses	0	0
Investment securities available for sale	140,117,000	131,797,000
Total mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	592,899,000	585,327,000
Gross Unrealized Gains	765,000	65,000
Gross Unrealized Losses	103,555,000	114,339,000
Allowance for Credit Losses	0	0
Investment securities available for sale	490,109,000	471,053,000
Residential pass-through securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	440,168,000	429,473,000
Gross Unrealized Gains	329,000	2,000
Gross Unrealized Losses	83,178,000	92,211,000
Allowance for Credit Losses	0	0
Investment securities available for sale	357,319,000	337,264,000
Commercial pass-through securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	152,731,000	155,854,000
Gross Unrealized Gains	436,000	63,000
Gross Unrealized Losses	20,377,000	22,128,000
Allowance for Credit Losses	0	0
Investment securities available for sale	$ 132,790,000	$ 133,789,000

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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