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Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Held to Maturity, Fair Value, Total | $ 1,210,938 | $ 1,064,133
Debt Securities, Available-for-sale, Amortized Cost | $ 1,646,938 | $ 1,583,736
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, Outstanding | 47,377,125 | 47,349,778
Common Stock, unvested restricted Stock awards | 144,733 | 135,273
Shares Held in Rabbi Trust | 82,223 | 82,565
Common Stock Outstanding |  |
Common Stock, Shares, Outstanding | 47,377,125 | 47,349,778
Subordinated Debt [Member] |  |
Unamortized Debt Issuance Expense | $ 186 | $ 209

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