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DEBT SECURITIES - Schedule of Additional Information on Debt Securities In Unrealized or Unrecognized Loss Position (Details) $ in Thousands | Jun. 30, 2024 USD ($) security | Dec. 31, 2023 USD ($) security
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Available for Sale |  |
Debt securities with gross unrealized or unrecognized losses, fair value | $ | $ 1,723,275 | $ 2,062,817
Gross unrealized or unrecognized losses on debt securities | $ | $ 246,797 | $ 247,245
Ratio of gross unrealized or unrecognized losses to debt securities with gross unrealized or unrecognized losses | 14.30% | 12.00%
Count of debt securities | security | 717 | 835
Count of debt securities in an unrealized or unrecognized loss position | security | 667 | 779
Held to Maturity |  |
Debt securities with gross unrealized or unrecognized losses, fair value | $ | $ 697,455 | $ 730,397
Gross unrealized or unrecognized losses on debt securities | $ | $ 153,806 | $ 142,231
Ratio of gross unrealized or unrecognized losses to debt securities with gross unrealized or unrecognized losses | 22.10% | 19.50%
Count of debt securities | security | 55 | 55
Count of debt securities in an unrealized or unrecognized loss position | security | 55 | 55
Total |  |
Debt securities with gross unrealized or unrecognized losses, fair value | $ | $ 2,420,730 | $ 2,793,214
Gross unrealized or unrecognized losses on debt securities | $ | $ 400,603 | $ 389,476
Ratio of gross unrealized or unrecognized losses to debt securities with gross unrealized or unrecognized losses | 16.50% | 13.90%
Count of debt securities | security | 772 | 890
Count of debt securities in an unrealized or unrecognized loss position | security | 722 | 834

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