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Securities (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Amortized cost and fair value of investments classified as available for sale |  |
Amortized Cost | $ 1,429,518 | $ 1,344,790
Unrealized Gains | 9,546 | 30,126
Unrealized Losses | (79,581) | (10,182)
Fair Value | 1,359,483 | 1,364,734
US Government Agencies Debt Securities [Member] |  |
Amortized cost and fair value of investments classified as available for sale |  |
Amortized Cost | 116,581 | 118,176
Unrealized Gains | 343 | 2,688
Unrealized Losses | (4,522) | (741)
Fair Value | 112,402 | 120,123
Mortgage Backed Securities - Residential |  |
Amortized cost and fair value of investments classified as available for sale |  |
Amortized Cost | 668,331 | 628,920
Unrealized Gains | 398 | 4,387
Unrealized Losses | (45,062) | (6,879)
Fair Value | 623,667 | 626,428
Mortgage Backed Securities - Commercial |  |
Amortized cost and fair value of investments classified as available for sale |  |
Amortized Cost | 11,490 | 15,480
Unrealized Gains | 8 | 191
Unrealized Losses | (54) | 0
Fair Value | 11,444 | 15,671
Collateralized Mortgage Obligations |  |
Amortized cost and fair value of investments classified as available for sale |  |
Amortized Cost | 211,507 | 175,501
Unrealized Gains | 24 | 1,272
Unrealized Losses | (9,555) | (1,768)
Fair Value | 201,976 | 175,005
State and Municipal Obligations |  |
Amortized cost and fair value of investments classified as available for sale |  |
Amortized Cost | 377,351 | 362,843
Unrealized Gains | 5,208 | 17,833
Unrealized Losses | (17,604) | (578)
Fair Value | 364,955 | 380,098
Taxable Municipal Bonds |  |
Amortized cost and fair value of investments classified as available for sale |  |
Amortized Cost | 38,440 | 38,445
Unrealized Gains | 34 | 396
Unrealized Losses | (2,777) | (215)
Fair Value | 35,697 | 38,626
US Treasury Securities |  |
Amortized cost and fair value of investments classified as available for sale |  |
Amortized Cost | 2,083 | 205
Unrealized Gains | 0 | 0
Unrealized Losses | (7) | (1)
Fair Value | 2,076 | 204
Collateralized Debt Obligations |  |
Amortized cost and fair value of investments classified as available for sale |  |
Amortized Cost | 0 | 0
Unrealized Gains | 3,531 | 3,359
Unrealized Losses | 0 | 0
Fair Value | $ 3,531 | $ 3,359

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