Estimated Fair Values (Level 3 Reconciliation) (Details) - Private label MBS [Member] - Fair Value, Recurring [Member] - Fair Value, Inputs, Level 3 - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Purchases, issuances, sales, and settlements:
Change in unrealized gains (losses) for the period included in other comprehensive income (loss) for assets held at June 30	$ 52	$ (947)	$ (97)	$ (997)
Available-for-sale Securities
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance, beginning of period	98,889	111,876	102,128	113,495
(Provision) benefit for credit losses	(1,006)	(708)	(2,246)	(1,493)
Accretion of credit losses in interest income	1,058	690	2,149	1,880
Net unrealized gains (losses) on AFS in OCI	19	(947)	(1,020)	(997)
Purchases, issuances, sales, and settlements:
Settlements	(3,355)	(3,098)	(5,406)	(5,072)
Balance, end of period	95,605	107,813	95,605	107,813
Total amount of gains for the periods presented included in earnings attributable to the change in unrealized gains (losses) relating to assets and liabilities still held at June 30	$ 19	$ (18)	$ (1,020)	$ 387

Amount of unrealized gain (loss) recognized in other comprehensive income (OCI) from asset measured at fair value on recurring basis using unobservable input (level 3) and still held.

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