DEBT SECURITIES - Schedule of Additional Information About Debt Securities Unrealized Loss Position (Details) $ in Thousands	Dec. 31, 2025 USD ($) security	Dec. 31, 2024 USD ($) security
Available for Sale
Debt securities with gross unrealized or unrecognized losses, fair value | $	$ 1,131,224	$ 1,466,743
Gross unrealized or unrecognized losses on debt securities | $	$ 152,182	$ 230,325
Ratio of gross unrealized or unrecognized losses to debt securities with gross unrealized or unrecognized losses	13.50%	15.70%
Count of debt securities | security	637	677
Count of debt securities in an unrealized or unrecognized loss position | security	376	586
Held to Maturity
Debt securities with gross unrealized or unrecognized losses, fair value | $	$ 625,957	$ 675,053
Gross unrealized or unrecognized losses on debt securities | $	$ 120,428	$ 151,577
Ratio of gross unrealized or unrecognized losses to debt securities with gross unrealized or unrecognized losses	19.20%	22.50%
Count of debt securities | security	52	55
Count of debt securities in an unrealized or unrecognized loss position | security	52	55
Total
Debt securities with gross unrealized or unrecognized losses, fair value | $	$ 1,757,181	$ 2,141,796
Gross unrealized or unrecognized losses on debt securities | $	$ 272,610	$ 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	689	732
Count of debt securities in an unrealized or unrecognized loss position | security	428	641