Securities, Available for Sale (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Debt securities, available-for-sale [Abstract]
Amortized cost	$ 1,627,401		$ 1,627,401		$ 1,615,078
Unrealized gains	86		86		47
Unrealized losses	(188,042)		(188,042)		(184,267)
Estimated fair value	1,439,445		1,439,445		1,430,858
Allowance for credit losses on AFS securities	0		0		0
Gross realized gains	0
Gross realized losses	0	$ 4,500		$ 4,500
Gain recognized on sale of previously written-off security			2,300
U.S. Treasury [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	143,571		143,571		133,302
Unrealized gains	5		5		0
Unrealized losses	(8,266)		(8,266)		(8,278)
Estimated fair value	135,310		135,310		125,024
Federal Agency [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	248,366		248,366		248,384
Unrealized gains	0		0		0
Unrealized losses	(34,040)		(34,040)		(33,644)
Estimated fair value	214,326		214,326		214,740
State & Municipal [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	95,856		95,856		96,251
Unrealized gains	0		0		11
Unrealized losses	(9,854)		(9,854)		(9,956)
Estimated fair value	86,002		86,002		86,306
Mortgage-Backed, Government Sponsored Enterprises [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	375,011		375,011		399,532
Unrealized gains	1		1		7
Unrealized losses	(45,918)		(45,918)		(44,264)
Estimated fair value	329,094		329,094		355,275
Mortgage-Backed, U.S. Government Agency Securities [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	70,600		70,600		74,281
Unrealized gains	9		9		14
Unrealized losses	(7,371)		(7,371)		(7,302)
Estimated fair value	63,238		63,238		66,993
Collateralized Mortgage Obligations, Government-Sponsored Enterprises [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	477,441		477,441		452,715
Unrealized gains	71		71		15
Unrealized losses	(49,064)		(49,064)		(48,257)
Estimated fair value	428,448		428,448		404,473
Collateralized Mortgage Obligations, U.S. Government Agency Securities [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	168,095		168,095		162,171
Unrealized gains	0		0		0
Unrealized losses	(27,055)		(27,055)		(25,100)
Estimated fair value	141,040		141,040		137,071
Corporate [Member]
Debt securities, available-for-sale [Abstract]
Amortized cost	48,461		48,461		48,442
Unrealized gains	0		0		0
Unrealized losses	(6,474)		(6,474)		(7,466)
Estimated fair value	$ 41,987		$ 41,987		$ 40,976
Loss on the write-off of an AFS debt security				$ 5,000