SECURITIES AND OTHER INVESTMENTS (Schedule of Gross Unrealized Losses and Fair Value of Investments) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	$ 646,437	$ 183,814
Less than 12 Months, Unrealized Losses	(3,520)	(2,542)
More than 12 Months, Fair Value	1,655,068	1,696,552
More than 12 Months, Unrealized Losses	(380,880)	(403,433)
Total, Fair Value	2,301,505	1,880,366
Unrealized Losses, Total	(384,400)	(405,975)
US Government Agencies Debt Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	61,143	1,935
Less than 12 Months, Unrealized Losses	(27)	(2)
More than 12 Months, Fair Value	969	1,286
More than 12 Months, Unrealized Losses	(12)	(25)
Total, Fair Value	62,112	3,221
Unrealized Losses, Total	(39)	(27)
US States and Political Subdivisions Debt Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	9,218	6,560
Less than 12 Months, Unrealized Losses	(355)	(322)
More than 12 Months, Fair Value	434,111	444,056
More than 12 Months, Unrealized Losses	(137,580)	(129,381)
Total, Fair Value	443,329	450,616
Unrealized Losses, Total	(137,935)	(129,703)
Corporate Bond Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	59,527	8,620
Less than 12 Months, Unrealized Losses	(173)	(27)
More than 12 Months, Fair Value	127,781	145,655
More than 12 Months, Unrealized Losses	(7,601)	(9,292)
Total, Fair Value	187,308	154,275
Unrealized Losses, Total	(7,774)	(9,319)
Commercial Mortgage-Backed Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	87,575	56,155
Less than 12 Months, Unrealized Losses	(378)	(1,547)
More than 12 Months, Fair Value	188,159	181,990
More than 12 Months, Unrealized Losses	(43,701)	(45,241)
Total, Fair Value	275,734	238,145
Unrealized Losses, Total	(44,079)	(46,788)
Residential Mortgage-Backed Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	428,974	110,544
Less than 12 Months, Unrealized Losses	(2,587)	(644)
More than 12 Months, Fair Value	904,048	923,565
More than 12 Months, Unrealized Losses	(191,986)	(219,494)
Total, Fair Value	1,333,022	1,034,109
Unrealized Losses, Total	(194,573)	(220,138)
Agency Securities [Member] \| Commercial Mortgage-Backed Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	52,923	31,291
Less than 12 Months, Unrealized Losses	(185)	(359)
More than 12 Months, Fair Value	159,546	160,880
More than 12 Months, Unrealized Losses	(41,723)	(44,319)
Total, Fair Value	212,469	192,171
Unrealized Losses, Total	(41,908)	(44,678)
Agency Securities [Member] \| Residential Mortgage-Backed Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	407,085	104,477
Less than 12 Months, Unrealized Losses	(2,143)	(546)
More than 12 Months, Fair Value	881,959	895,714
More than 12 Months, Unrealized Losses	(189,564)	(216,208)
Total, Fair Value	1,289,044	1,000,191
Unrealized Losses, Total	(191,707)	(216,754)
Non-agency \| Commercial Mortgage-Backed Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	34,652	24,864
Less than 12 Months, Unrealized Losses	(193)	(1,188)
More than 12 Months, Fair Value	28,613	21,110
More than 12 Months, Unrealized Losses	(1,978)	(922)
Total, Fair Value	63,265	45,974
Unrealized Losses, Total	(2,171)	(2,110)
Non-agency \| Residential Mortgage-Backed Securities [Member]
Debt and Equity Securities, FV-NI [Line Items]
Less than 12 months, Fair Value	21,889	6,067
Less than 12 Months, Unrealized Losses	(444)	(98)
More than 12 Months, Fair Value	22,089	27,851
More than 12 Months, Unrealized Losses	(2,422)	(3,286)
Total, Fair Value	43,978	33,918
Unrealized Losses, Total	$ (2,866)	$ (3,384)

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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