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SECURITIES (Schedule of Gross Unrealized Losses and Fair Value of Investments) (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | $ 2,052,814 | $ 1,733,749
Less than 12 Months, Unrealized Losses | (173,621) | (28,409)
More than 12 Months, Fair Value | 440,252 | 139,747
More than 12 Months, Unrealized Losses | (45,602) | (3,923)
Total, Fair Value | 2,493,066 | 1,873,496
Unrealized Losses, Total | (219,223) | (32,332)
U.S. government and agency securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 64,366 | 64,474
Less than 12 Months, Unrealized Losses | (3,972) | (115)
More than 12 Months, Fair Value | 3,604 | 3,900
More than 12 Months, Unrealized Losses | (57) | (45)
Total, Fair Value | 67,970 | 68,374
Unrealized Losses, Total | (4,029) | (160)
Obligations of states and political subdivisions |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 533,491 | 249,701
Less than 12 Months, Unrealized Losses | (79,311) | (2,020)
More than 12 Months, Fair Value | 31,225 | 2,123
More than 12 Months, Unrealized Losses | (7,944) | (53)
Total, Fair Value | 564,716 | 251,824
Unrealized Losses, Total | (87,255) | (2,073)
Corporate and other bonds |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 112,253 | 21,134
Less than 12 Months, Unrealized Losses | (2,763) | (177)
More than 12 Months, Fair Value | 0 | 703
More than 12 Months, Unrealized Losses | 0 | (1)
Total, Fair Value | 112,253 | 21,837
Unrealized Losses, Total | (2,763) | (178)
Commercial |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 262,778 | 209,347
Less than 12 Months, Unrealized Losses | (13,071) | (4,366)
More than 12 Months, Fair Value | 59,667 | 14,201
More than 12 Months, Unrealized Losses | (4,844) | (270)
Total, Fair Value | 322,445 | 223,548
Unrealized Losses, Total | (17,915) | (4,636)
Residential |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 1,079,926 | 1,189,093
Less than 12 Months, Unrealized Losses | (74,504) | (21,731)
More than 12 Months, Fair Value | 345,756 | 118,820
More than 12 Months, Unrealized Losses | (32,757) | (3,554)
Total, Fair Value | 1,425,682 | 1,307,913
Unrealized Losses, Total | (107,261) | (25,285)
Agency | Commercial |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 175,651 | 175,588
Less than 12 Months, Unrealized Losses | (11,545) | (4,053)
More than 12 Months, Fair Value | 40,654 | 3,172
More than 12 Months, Unrealized Losses | (4,047) | (162)
Total, Fair Value | 216,305 | 178,760
Unrealized Losses, Total | (15,592) | (4,215)
Agency | Residential |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 1,016,786 | 1,140,701
Less than 12 Months, Unrealized Losses | (71,954) | (21,147)
More than 12 Months, Fair Value | 333,594 | 106,104
More than 12 Months, Unrealized Losses | (31,894) | (3,190)
Total, Fair Value | 1,350,380 | 1,246,805
Unrealized Losses, Total | (103,848) | (24,337)
Non-agency | Commercial |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 87,127 | 33,759
Less than 12 Months, Unrealized Losses | (1,526) | (313)
More than 12 Months, Fair Value | 19,013 | 11,029
More than 12 Months, Unrealized Losses | (797) | (108)
Total, Fair Value | 106,140 | 44,788
Unrealized Losses, Total | (2,323) | (421)
Non-agency | Residential |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 63,140 | 48,392
Less than 12 Months, Unrealized Losses | (2,550) | (584)
More than 12 Months, Fair Value | 12,162 | 12,716
More than 12 Months, Unrealized Losses | (863) | (364)
Total, Fair Value | 75,302 | 61,108
Unrealized Losses, Total | $ (3,413) | $ (948)

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