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v3.23.1

Summary of Significant Accounting Policies - Allowance for Credit Losses (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Held-to-maturity Securities | $ 2,636,673 | $ 2,683,241
Threshold Net Book Balance, Individually Evaluated Loans | 1,000 |
Financing Receivable, Threshold Loss on Modifications Estimated | 1,000 |
Interest Receivable | 109,400 | 105,400
Liability Recorded for Expected Credit Losses on Unfunded Commitments | 85,100 |
Other Assets |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Accrued interest receivable for investment securities | 26,400 | 28,200
Interest Receivable | 109,400 | 105,400
Other Liabilities |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Liability Recorded for Expected Credit Losses on Unfunded Commitments | $ 85,100 | $ 67,200

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