Fair Value - Schedule of Assets and Liabilities Measured on Recurring Basis (Details) $ in Thousands	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	$ 906,951	$ 856,021
Minimum | Marketability and comparability discounts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input (as a percent)	0.05
Maximum | Marketability and comparability discounts
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement input (as a percent)	0.15
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	$ 0	0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	906,951	856,021
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
U.S. Treasuries
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	240,054	210,118
U.S. Treasuries | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
U.S. Treasuries | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	240,054	210,118
U.S. Treasuries | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
U.S. Government agency obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	491,750	454,923
U.S. Government agency obligations | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
U.S. Government agency obligations | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	491,750	454,923
U.S. Government agency obligations | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
Residential mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	73,263	82,028
Residential mortgage-backed securities | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
Residential mortgage-backed securities | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	73,263	82,028
Residential mortgage-backed securities | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
Commercial mortgage-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	12,212	12,273
Commercial mortgage-backed securities | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
Commercial mortgage-backed securities | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	12,212	12,273
Commercial mortgage-backed securities | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
Asset-backed securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale		6,949
Asset-backed securities | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale		0
Asset-backed securities | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale		6,949
Asset-backed securities | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale		0
Corporate investments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	47,108	45,539
Corporate investments | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
Corporate investments | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	47,108	45,539
Corporate investments | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
State and political subdivisions
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	42,564	44,191
State and political subdivisions | Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	0	0
State and political subdivisions | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	42,564	44,191
State and political subdivisions | Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for-sale	$ 0	$ 0