Securities - Securities Gross (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Less Than 12 Months
Fair Value	$ 240,711	$ 692,782
Unrealized Losses	(6,742)	(63,580)
More Than 12 Months
Fair Value	978,743	536,618
Unrealized Losses	(167,048)	(108,554)
Total
Fair Value	1,219,454	1,229,400
Unrealized Losses	(173,790)	(172,134)
U.S. Government agencies
Less Than 12 Months
Fair Value	21,440	58,462
Unrealized Losses	(965)	(4,034)
More Than 12 Months
Fair Value	73,836	38,959
Unrealized Losses	(11,384)	(7,743)
Total
Fair Value	95,276	97,421
Unrealized Losses	(12,349)	(11,777)
Mortgage Backed Securities - residential
Less Than 12 Months
Fair Value	70,911	234,488
Unrealized Losses	(2,835)	(19,757)
More Than 12 Months
Fair Value	518,769	379,520
Unrealized Losses	(89,234)	(71,259)
Total
Fair Value	589,680	614,008
Unrealized Losses	(92,069)	(91,016)
Mortgage Backed Securities - commercial
Less Than 12 Months
Fair Value	3,837	9,677
Unrealized Losses	(304)	(426)
More Than 12 Months
Fair Value	3,656
Unrealized Losses	(199)
Total
Fair Value	7,493	9,677
Unrealized Losses	(503)	(426)
Collateralized Mortgage Obligations
Less Than 12 Months
Fair Value	42,327	135,135
Unrealized Losses	(1,638)	(11,331)
More Than 12 Months
Fair Value	149,733	63,792
Unrealized Losses	(26,659)	(13,588)
Total
Fair Value	192,060	198,927
Unrealized Losses	(28,297)	(24,919)
State and municipal obligations
Less Than 12 Months
Fair Value	100,350	233,439
Unrealized Losses	(951)	(24,291)
More Than 12 Months
Fair Value	200,088	41,510
Unrealized Losses	(33,401)	(12,823)
Total
Fair Value	300,438	274,949
Unrealized Losses	(34,352)	(37,114)
Municipal taxable
Less Than 12 Months
Fair Value	1,846	18,637
Unrealized Losses	(49)	(3,706)
More Than 12 Months
Fair Value	30,529	12,837
Unrealized Losses	(6,139)	(3,141)
Total
Fair Value	32,375	31,474
Unrealized Losses	(6,188)	(6,847)
U.S. Treasury
Less Than 12 Months
Fair Value		2,944
Unrealized Losses		(35)
More Than 12 Months
Fair Value	2,132
Unrealized Losses	(32)
Total
Fair Value	2,132	2,944
Unrealized Losses	$ (32)	$ (35)

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