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Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
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Statement of Financial Position [Abstract] |  |
Securities available for sale, amortized cost | $ 6,342,379 | $ 6,984,530
Securities held to maturity, fair value | 2,606,080 | 1,631,482
Loans held-for-sale, fair value | 15,149 | 41,022
Property and equipment, accumulated depreciation | 297,664 | 280,065
Right of use assets, accumulated amortization | $ 42,468 | $ 34,425
Preferred stock, par value per share | $ 20.00 | $ 20.00
Common stock, par value per share | $ 3.33 | $ 3.33

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