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Fair Value Disclosures - Carrying Amount and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Assets: |  |
Securities available-for-sale, at fair value | $ 540,483 | $ 482,453
Securities held to maturity, fair value | 277,734 | 76,946
Liabilities: |  |
Noninterest-bearing demand deposits | 1,093,933 | 1,055,125
Interest-bearing demand deposits | 975,272 | 899,158
Time deposits | 549,047 | 574,648
Carrying Amount [Member] |  |
Assets: |  |
Cash and cash equivalents | 763,968 | 1,045,077
Securities available-for-sale, at fair value | 540,483 | 482,453
Securities held to maturity, fair value | 289,532 | 76,969
Other investments | 16,499 | 16,494
Loans, net and loans held for sale | 2,791,842 | 2,679,148
Interest rate swaps agreements for customer loans | 1,334 | 1,326
Liabilities: |  |
Noninterest-bearing demand deposits | 1,093,933 | 1,055,125
Interest-bearing demand deposits | 975,272 | 899,158
Money market and savings deposits | 1,573,101 | 1,493,007
Time deposits | 549,047 | 574,648
Borrowings | 36,713 | 87,585
Subordinated debt | 41,952 | 41,930
Derivative financial instruments and interest rate swap agreements | 2,552 | 4,893
Estimated Fair Value [Member] |  |
Assets: |  |
Cash and cash equivalents | 763,968 | 1,045,077
Securities available-for-sale, at fair value | 540,483 | 482,453
Securities held to maturity, fair value | 277,734 | 76,946
Loans, net and loans held for sale | 2,739,655 | 2,676,181
Interest rate swaps agreements for customer loans | 1,334 | 1,326
Liabilities: |  |
Noninterest-bearing demand deposits | 1,093,933 | 1,055,125
Interest-bearing demand deposits | 975,272 | 899,158
Money market and savings deposits | 1,573,101 | 1,493,007
Time deposits | 549,677 | 576,598
Borrowings | 36,750 | 88,082
Subordinated debt | 42,487 | 43,374
Derivative financial instruments and interest rate swap agreements | 2,552 | 4,893
Fair Value, Inputs, Level 1 [Member] |  |
Assets: |  |
Cash and cash equivalents | 763,968 | 1,045,077
Fair Value, Inputs, Level 2 [Member] |  |
Assets: |  |
Securities available-for-sale, at fair value | 540,483 | 482,453
Securities held to maturity, fair value | 277,734 | 76,946
Interest rate swaps agreements for customer loans | 1,334 | 1,326
Liabilities: |  |
Noninterest-bearing demand deposits | 1,093,933 | 1,055,125
Interest-bearing demand deposits | 975,272 | 899,158
Money market and savings deposits | 1,573,101 | 1,493,007
Time deposits | 549,677 | 576,598
Borrowings | 36,750 | 88,082
Derivative financial instruments and interest rate swap agreements | 2,552 | 4,893
Fair Value, Inputs, Level 3 [Member] |  |
Assets: |  |
Loans, net and loans held for sale | 2,739,655 | 2,676,181
Liabilities: |  |
Subordinated debt | $ 42,487 | $ 43,374

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