Customer Deposits - Average Balances and Weighted Average Rates (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Deposits [Abstract]
Average balance, Notice	$ 142,461	$ 9,059	$ 90,298	$ 4,724
Average balance, Term	470,405	54,789	319,129	28,012
Average balance, Savings	147	3,973	371	4,298
Average balance, Total deposits	$ 613,013	$ 67,821	$ 409,798	$ 37,034
Average paid rate, Notice	3.71%	2.58%	3.74%	2.76%
Average paid rate, Term	4.44%	3.86%	4.58%	3.86%
Average paid rate, Savings	2.70%	2.07%	2.31%	2.16%
Average paid rate, Total deposits	3.62%	2.84%	3.54%	2.93%