DEBT SECURITIES - Schedule of Additional Information on Debt Securities In Unrealized or Unrecognized Loss Position (Details) $ in Thousands	Mar. 31, 2025 USD ($) security	Dec. 31, 2024 USD ($) security
Available for Sale
Debt securities with gross unrealized or unrecognized losses, fair value | $	$ 1,458,488	$ 1,466,743
Gross unrealized or unrecognized losses on debt securities | $	$ 193,297	$ 230,325
Ratio of gross unrealized or unrecognized losses to debt securities with gross unrealized or unrecognized losses	13.30%	15.70%
Count of debt securities | security	679	677
Count of debt securities in an unrealized or unrecognized loss position | security	536	586
Held to Maturity
Debt securities with gross unrealized or unrecognized losses, fair value | $	$ 678,470	$ 675,053
Gross unrealized or unrecognized losses on debt securities | $	$ 136,932	$ 151,577
Ratio of gross unrealized or unrecognized losses to debt securities with gross unrealized or unrecognized losses	20.20%	22.50%
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 | $	$ 2,136,958	$ 2,141,796
Gross unrealized or unrecognized losses on debt securities | $	$ 330,229	$ 381,902
Ratio of gross unrealized or unrecognized losses to debt securities with gross unrealized or unrecognized losses	15.50%	17.80%
Count of debt securities | security	734	732
Count of debt securities in an unrealized or unrecognized loss position | security	591	641