Securities - Amortized Cost and Fair Value, Held to Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	$ 1,324,072	$ 416,389
Gross Unrealized Gains	17	334
Gross Unrealized Losses	(117,549)	(1,171)
Fair Value	1,206,540	415,552
Allowance for credit losses - held to maturity securities	(32)	(32)
Held-to-maturity securities, net of allowance for credit losses	1,324,040	416,357
Obligations of states and political subdivisions
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	291,886	267,641
Gross Unrealized Gains	17	333
Gross Unrealized Losses	(48,325)	(685)
Fair Value	243,578	267,289
Residential mortgage backed securities:
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	423,315	24,832
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(30,706)	(92)
Fair Value	392,609	24,740
Other debt securities
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	62,875	22,049
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(4,266)	(79)
Fair Value	58,609	21,970
Government agency mortgage backed securities \| Residential mortgage backed securities:
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	483,560	60,507
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(24,432)	(198)
Fair Value	459,128	60,310
Government agency mortgage backed securities \| Commercial mortgage backed securities:
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	17,006	1,855
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(3,261)	0
Fair Value	13,745	1,855
Government agency collateralized mortgage obligations \| Commercial mortgage backed securities:
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost	45,430	39,505
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(6,559)	(117)
Fair Value	$ 38,871	$ 39,388

Amount of allowance for credit loss for debt security measured at amortized cost (held-to-maturity).

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