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Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Debt Securities, Available-for-sale, Amortized Cost | $ 1,566,779 | $ 1,583,736
Securities held to maturity, fair value | $ 1,524,710 | $ 1,064,133
Preferred stock, par value | $ 0.01 | $ 0.01
Preferred stock, shares authorized | 1,000,000 | 1,000,000
Preferred stock, shares outstanding | 0 | 0
Common stock, par value | $ 0.01 | $ 0.01
Common stock, shares authorized | 75,000,000 | 75,000,000
Common stock, shares issued | 45,641,238 | 47,349,778
Common stock, shares outstanding | 45,641,238 | 47,349,778
Common stock, unvested restricted Stock awards | 135,712 | 135,273
Shares held in rabbit trust at cost | 80,965 | 82,565
Subordinated Debt [Member] |  |
Unamortized Debt Issuance Expense | $ 115 | $ 209
Junior Subordinated Debt [Member] |  |
Unamortized Debt Issuance Expense | $ 33 | $ 35

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