Investment Securities - Securities Held-to-Maturity (Details) - USD ($) $ in Thousands		Jun. 30, 2025		Dec. 31, 2024		Dec. 31, 2023
Investment Securities [Abstract]
Amortized cost		$ 748,861		$ 769,443
Gross unrecognized gains		945		46
Gross unrecognized losses		143,103		158,536
Fair value		606,703		610,953
Allowance for credit losses		450		450		$ 450
Mortgage-backed Securities [Member]
Investment Securities [Abstract]
Amortized cost	[1]	608,903		626,427
Gross unrecognized gains	[1]	17		0
Gross unrecognized losses	[1]	130,114		143,544
Fair value	[1]	478,806		482,883
Allowance for credit losses		0	[1]	0	[1]	0
Collateralized Mortgage Obligations [Member]
Investment Securities [Abstract]
Amortized cost	[1]	65,146		68,377
Gross unrecognized gains	[1]	0		0
Gross unrecognized losses	[1]	11,609		13,876
Fair value	[1]	53,537		54,501
Allowance for credit losses		0	[1]	0	[1]	0
Municipal Securities [Member]
Investment Securities [Abstract]
Amortized cost		74,812		74,639
Gross unrecognized gains		928		46
Gross unrecognized losses		1,380		1,116
Fair value		74,360		73,569
Allowance for credit losses		$ 450		$ 450		$ 450

[1] All mortgage-backed securities and collateralized mortgage obligations were issued by an agency or government sponsored entity of the U.S. Government.