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INVESTMENT SECURITIES (Unrealized Gains and Losses by Category) (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Securities Available-for-Sale, Amortized Cost
12 months or more	$ 887,222	$ 1,017,108
Less than 12 months	890,768	114,099
Amortized Cost	1,777,990	1,131,207
Securities Available-for-Sale, Unrealized Loss
12 months or more	100,536	91,590
Less than 12 months	15,008	383
Total	115,544	91,973
Securities Available-for-Sale, Fair Value
12 months or more	786,686	925,518
Less than 12 months	875,760	113,716
Total	1,662,446	1,039,234
FNMA and FHLMC certificates
Securities Available-for-Sale, Amortized Cost
12 months or more	641,189	731,334
Less than 12 months	804,976	106,235
Amortized Cost	1,446,165	837,569
Securities Available-for-Sale, Unrealized Loss
12 months or more	61,462	56,847
Less than 12 months	12,989	331
Total	74,451	57,178
Securities Available-for-Sale, Fair Value
12 months or more	579,727	674,487
Less than 12 months	791,987	105,904
Total	1,371,714	780,391
GNMA certificates
Securities Available-for-Sale, Amortized Cost
12 months or more	240,265	275,669
Less than 12 months	85,792	7,864
Amortized Cost	326,057	283,533
Securities Available-for-Sale, Unrealized Loss
12 months or more	38,945	34,364
Less than 12 months	2,019	52
Total	40,964	34,416
Securities Available-for-Sale, Fair Value
12 months or more	201,320	241,305
Less than 12 months	83,773	7,812
Total	285,093	249,117
CMOs issued by US Government-sponsored agencies
Securities Available-for-Sale, Amortized Cost
12 months or more	5,768	9,986
Amortized Cost	5,768	9,986
Securities Available-for-Sale, Unrealized Loss
12 months or more	129	376
Total	129	376
Securities Available-for-Sale, Fair Value
12 months or more	5,639	9,610
Total	$ 5,639	9,610
Other debt securities
Securities Available-for-Sale, Amortized Cost
12 months or more		119
Amortized Cost		119
Securities Available-for-Sale, Unrealized Loss
12 months or more		3
Total		3
Securities Available-for-Sale, Fair Value
12 months or more		116
Total		$ 116

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