Investment Securities - Gross Unrealized Losses on Available-for-sale Securities and the Related Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Securities available for sale
Less than 12 months, fair value	$ 307,238	$ 19,992
Less than 12 months, unrealized losses	(5,294)	(8)
More than 12 months, fair value	94,187	240,979
More than 12 months, unrealized losses	(754)	(2,414)
Fair Value	401,425	260,971
Unrealized Losses	(6,048)	(2,422)
Securities Held to Maturity
Less than 12 months, fair value	4,957	0
Less than 12 months, unrealized losses	(43)	0
More than 12 months, fair value	11,072	11,172
More than 12 months, unrealized losses	(678)	(578)
Fair Value	16,029	11,172
Unrealized Losses	(721)	(578)
U.S. Treasury and government sponsored entities
Securities available for sale
Less than 12 months, fair value	293,873	19,992
Less than 12 months, unrealized losses	(5,138)	(8)
More than 12 months, fair value	94,187	236,387
More than 12 months, unrealized losses	(754)	(2,363)
Fair Value	388,060	256,379
Unrealized Losses	(5,892)	(2,371)
Collateralized loan obligations
Securities available for sale
Less than 12 months, fair value	8,968
Less than 12 months, unrealized losses	(32)
More than 12 months, fair value	0
More than 12 months, unrealized losses	0
Fair Value	8,968
Unrealized Losses	(32)
Mortgage-backed securities
Securities available for sale
Less than 12 months, fair value	4,397
Less than 12 months, unrealized losses	(124)
More than 12 months, fair value	0
More than 12 months, unrealized losses	0
Fair Value	4,397
Unrealized Losses	(124)
Corporate bonds
Securities available for sale
Less than 12 months, fair value		0
Less than 12 months, unrealized losses		0
More than 12 months, fair value		4,592
More than 12 months, unrealized losses		(51)
Fair Value		4,592
Unrealized Losses		(51)
Securities Held to Maturity
Less than 12 months, fair value	4,957	0
Less than 12 months, unrealized losses	(43)	0
More than 12 months, fair value	11,072	11,172
More than 12 months, unrealized losses	(678)	(578)
Fair Value	16,029	11,172
Unrealized Losses	$ (721)	$ (578)

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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