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Fair Value of Financial Instruments - Carrying Value and Estimated Fair Values of Financial Instruments Not Measured at Fair Value (Details) - USD ($) $ in Thousands | Mar. 31, 2024 | Dec. 31, 2023
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Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Securities held to maturity | $ 10,956 | $ 10,848
Carrying Value | Level 1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Cash and cash equivalents | 291,512 | 280,441
Carrying Value | Level 2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Non-marketable equity securities held in other financial institutions | 53,870 | 55,190
Accrued interest and loan fees receivable | 43,508 | 41,688
Deposits | 8,505,464 | 8,251,125
FHLB advances and other borrowings | 13,158 | 83,598
Subordinated indebtedness | 160,684 | 194,279
Accrued interest payable | 15,943 | 12,272
Carrying Value | Level 3 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Securities held to maturity | 11,651 | 11,615
LHFI, net | 7,801,652 | 7,564,076
Estimated Fair Value | Level 1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Cash and cash equivalents | 291,512 | 280,441
Estimated Fair Value | Level 2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Non-marketable equity securities held in other financial institutions | 53,870 | 55,190
Accrued interest and loan fees receivable | 43,508 | 41,688
Deposits | 8,490,801 | 8,240,520
FHLB advances and other borrowings | 12,685 | 83,187
Subordinated indebtedness | 158,149 | 186,251
Accrued interest payable | 15,943 | 12,272
Estimated Fair Value | Level 3 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Securities held to maturity | 10,956 | 10,848
LHFI, net | $ 7,392,695 | $ 7,177,720

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- Definition Federal Home Loan Bank Advances and Securities Sold Under Agreements to Repurchase, Fair Value + References No definition available. + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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