Investment Securities - Securities Available-for-Sale (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024
Investment Securities [Abstract]
Amortized cost		$ 879,082	$ 490,992
Gross unrealized gains		9,792	524
Gross unrealized losses		18,713	27,102
Fair value		870,161	464,414
U.S. Government-sponsored Securities [Member]
Investment Securities [Abstract]
Amortized cost		2,144	2,657
Gross unrealized gains		1	4
Gross unrealized losses		15	17
Fair value		2,130	2,644
Mortgage-backed Securities [Member]
Investment Securities [Abstract]
Amortized cost	[1]	758,047	466,302
Gross unrealized gains	[1]	6,599	464
Gross unrealized losses	[1]	18,183	26,908
Fair value	[1]	746,463	439,858
Commercial Mortgage-backed Obligations [Member]
Investment Securities [Abstract]
Amortized cost	[1]	1,231	1,228
Gross unrealized gains	[1]	23	0
Gross unrealized losses	[1]	0	16
Fair value	[1]	1,254	1,212
Collateralized Mortgage Obligations [Member]
Investment Securities [Abstract]
Amortized cost	[1]	21,356	5,653
Gross unrealized gains	[1]	0	0
Gross unrealized losses	[1]	479	156
Fair value	[1]	20,877	5,497
Municipal Securities [Member]
Investment Securities [Abstract]
Amortized cost		66,465
Gross unrealized gains		3,021
Gross unrealized losses		0
Fair value		69,486
Corporate Securities [Member]
Investment Securities [Abstract]
Amortized cost		29,529	14,800
Gross unrealized gains		148	56
Gross unrealized losses		36	0
Fair value		29,641	14,856
Other [Member]
Investment Securities [Abstract]
Amortized cost		310	352
Gross unrealized gains		0	0
Gross unrealized losses		0	5
Fair value		$ 310	$ 347

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