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SECURITIES AND OTHER INVESTMENTS (Schedule of Gross Unrealized Losses and Fair Value of Investments) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | $ 205,602 | $ 1,285,632
Less than 12 Months, Unrealized Losses | (3,700) | (140,392)
More than 12 Months, Fair Value | 1,862,395 | 1,392,153
More than 12 Months, Unrealized Losses | (382,167) | (322,446)
Total, Fair Value | 2,067,997 | 2,677,785
Unrealized Losses, Total | (385,867) | (462,838)
U.S. government and agency securities |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 0 | 2,594
Less than 12 Months, Unrealized Losses | 0 | (166)
More than 12 Months, Fair Value | 1,980 | 59,269
More than 12 Months, Unrealized Losses | (34) | (8,087)
Total, Fair Value | 1,980 | 61,863
Unrealized Losses, Total | (34) | (8,253)
Obligations of states and political subdivisions |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 11,758 | 588,668
Less than 12 Months, Unrealized Losses | (2,090) | (86,895)
More than 12 Months, Fair Value | 455,931 | 187,375
More than 12 Months, Unrealized Losses | (109,361) | (65,806)
Total, Fair Value | 467,689 | 776,043
Unrealized Losses, Total | (111,451) | (152,701)
Corporate and other bonds |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 89,450 | 206,861
Less than 12 Months, Unrealized Losses | (531) | (15,019)
More than 12 Months, Fair Value | 144,155 | 17,121
More than 12 Months, Unrealized Losses | (19,243) | (2,580)
Total, Fair Value | 233,605 | 223,982
Unrealized Losses, Total | (19,774) | (17,599)
Commercial |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 35,665 | 139,980
Less than 12 Months, Unrealized Losses | (547) | (9,255)
More than 12 Months, Fair Value | 208,435 | 155,743
More than 12 Months, Unrealized Losses | (42,599) | (34,257)
Total, Fair Value | 244,100 | 295,723
Unrealized Losses, Total | (43,146) | (43,512)
Residential |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 68,729 | 347,529
Less than 12 Months, Unrealized Losses | (532) | (29,057)
More than 12 Months, Fair Value | 1,051,894 | 972,645
More than 12 Months, Unrealized Losses | (210,930) | (211,716)
Total, Fair Value | 1,120,623 | 1,320,174
Unrealized Losses, Total | (211,462) | (240,773)
Agency | Commercial |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 35,665 | 73,362
Less than 12 Months, Unrealized Losses | (547) | (7,024)
More than 12 Months, Fair Value | 143,657 | 127,193
More than 12 Months, Unrealized Losses | (40,634) | (32,244)
Total, Fair Value | 179,322 | 200,555
Unrealized Losses, Total | (41,181) | (39,268)
Agency | Residential |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 59,707 | 328,590
Less than 12 Months, Unrealized Losses | (491) | (27,769)
More than 12 Months, Fair Value | 1,011,809 | 929,581
More than 12 Months, Unrealized Losses | (205,144) | (206,192)
Total, Fair Value | 1,071,516 | 1,258,171
Unrealized Losses, Total | (205,635) | (233,961)
Non-agency | Commercial |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 0 | 66,618
Less than 12 Months, Unrealized Losses | 0 | (2,231)
More than 12 Months, Fair Value | 64,778 | 28,550
More than 12 Months, Unrealized Losses | (1,965) | (2,013)
Total, Fair Value | 64,778 | 95,168
Unrealized Losses, Total | (1,965) | (4,244)
Non-agency | Residential |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Less than 12 months, Fair Value | 9,022 | 18,939
Less than 12 Months, Unrealized Losses | (41) | (1,288)
More than 12 Months, Fair Value | 40,085 | 43,064
More than 12 Months, Unrealized Losses | (5,786) | (5,524)
Total, Fair Value | 49,107 | 62,003
Unrealized Losses, Total | $ (5,827) | $ (6,812)

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