Securities Sold Under Agreements to Repurchase - Schedule of Assets and Liabilities Subject to an Enforceable Master Netting Arrangement or Repurchase Agreements (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	$ 450,490	$ 450,490
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	450,490	450,490
Securities Sold under Agreements to Repurchase, Net Amount Offset Against Collateral	0	0
Repurchase Agreements, Fair Value of Collateral Pledged	450,490	450,490
Private Institutions
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	450,000	450,000
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	450,000	450,000
Securities Sold under Agreements to Repurchase, Net Amount Offset Against Collateral	0	0
Repurchase Agreements, Fair Value of Collateral Pledged	450,000	450,000
Government Entities
Liabilities:
Repurchase Agreements, Gross Amounts of Recognized Liabilities	490	490
Repurchase Agreements, Gross Amounts Offset in the Statements of Condition	0	0
Repurchase Agreements, Net Amounts of Liabilities Presented in the Statements of Condition	490	490
Securities Sold under Agreements to Repurchase, Net Amount Offset Against Collateral	0	0
Repurchase Agreements, Fair Value of Collateral Pledged	490	490
Interest Rate Swap Agreements | Institutional Counterparties
Assets:
Gross Amounts of Recognized Assets	2,316	26
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Assets Presented in the Statements of Condition	2,316	26
Netting Adjustments per Master Netting Arrangements	2,316	26
Gross Amounts Not Offset in the Statements of Condition - FV of collateral pledged	0	0
Derivative Assets, Net Amount	0	0
Liabilities:
Gross Amounts of Recognized Liabilities	4,408	5,948
Gross Amounts Offset in the Statements of Condition	0	0
Net Amounts of Liabilities Presented in the Statements of Condition	4,408	5,948
Derivative Liability, Netting Adjustments per Master Netting Arrangements	2,316	26
Derivative, Collateral, Right to Reclaim Securities	2,092	5,922
Derivative Liabilities, Net Amount	$ 0	$ 0