Securities, Securities by Contractual Maturity (Details) - USD ($) $ in Thousands		Sep. 30, 2024	Jun. 30, 2024
Securities available-for-sale, Amortized Cost [Abstract]
Within one year		$ 204,759
After one year through five years		39,893
After five years through ten years		10,417
After ten years		0
Total securities available-for-sale		255,069
Mortgage-backed securities		128,034
Amortized cost	[1]	383,103	$ 376,179
Securities available-for-sale, Fair Value [Abstract]
Within one year		206,235
After one year through five years		38,034
After five years through ten years		8,994
After ten years		0
Total securities available-for-sale		253,263
Mortgage-backed securities		111,263
Fair value		364,526	350,001
Securities held-to-maturity, Amortized Cost [Abstract]
Within one year		56,727
After one year through five years		158,641
After five years through ten years		175,918
After ten years		109,187
Total securities held-to-maturity		500,473
Mortgage-backed securities		201,912
Amortized cost	[2]	702,385	690,837
Securities held-to-maturity, Fair Value [Abstract]
Within one year		56,670
After one year through five years		158,500
After five years through ten years		163,847
After ten years		98,347
Total securities held-to-maturity		477,364
Mortgage-backed securities		187,510
Fair value		664,874	$ 630,241
Total Debt Securities [Abstract]
Amortized cost		1,085,488
Fair value		$ 1,029,400

[1] Amortized cost excludes accrued interest receivable of $3.6 million and $4.0 million at September 30, 2024 and June 30, 2024, respectively, which is included in accrued interest receivable in the consolidated statement of financial condition.

[2] Amortized cost excludes accrued interest receivable of $4.8 million and $4.1 million at September 30, 2024 and June 30, 2024, respectively, which is included in accrued interest receivable in the consolidated statement of financial condition.