INVESTMENT SECURITIES - Amortized Cost and Fair Value of Available for Sale Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Amortized Cost
Due in one year or less	$ 306,980
Due from one year to five years	440,409
Due from five to ten years	73,709
Due after ten years	12,153
Mortgage-backed securities	631,284
Amortized Cost	1,464,535	$ 1,447,637
Estimated Fair Value
Due in one year or less	305,330
Due from one year to five years	429,292
Due from five to ten years	72,350
Due after ten years	10,751
Mortgage-backed securities	596,696
Estimated Fair Value	1,414,419	1,402,944
Amortized Cost
Due in one year or less	0
Due from one year to five years	0
Due from five to ten years	0
Due after ten years	33,668
Mortgage-backed securities	113,354
Amortized Cost	147,022	141,512
Estimated Fair Value
Due in one year or less	0
Due from one year to five years	0
Due from five to ten years	0
Due after ten years	27,977
Mortgage-backed securities	98,604
Estimated Fair Value	$ 126,581	$ 122,731

Mortgage-Backed Securities, Available-For-Sale, Amortized Cost

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-Subparagraph (SX 210.9-03(6))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

Reference 4: http://fasb.org/us-gaap/role/ref/otherTransitionRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (aa)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-5

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Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as available-for-sale.

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- Definition

Fair value of securitized, pay-through debt securities collateralized by real estate mortgage loans classified as held-to-maturity.

+ References

No definition available.

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