FAIR VALUE MEASUREMENTS (Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
ASSETS
Securities available for sale, at fair value	$ 2,483,835	$ 2,442,166
Loans held for sale	9,525	9,420
Financial Derivatives	94,883	97,445
LIABILITIES
Financial Derivatives	176,420	199,548
Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	62,860	62,199
Loans held for sale	0	0
Financial Derivatives	0	0
LIABILITIES
Financial Derivatives	0	0
Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	2,420,975	2,379,967
Loans held for sale	9,525	9,420
Financial Derivatives	94,883	97,445
LIABILITIES
Financial Derivatives	176,420	199,548
Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Loans held for sale	0	0
Financial Derivatives	0	0
LIABILITIES
Financial Derivatives	0	0
Fair Value, Recurring [Member]
ASSETS
Loans held for sale	9,525	9,420
Financial Derivatives	94,883	97,445
LIABILITIES
Financial Derivatives	176,420	199,548
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
ASSETS
Loans held for sale	0	0
Financial Derivatives	0	0
LIABILITIES
Financial Derivatives	0	0
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
ASSETS
Loans held for sale	9,525	9,420
Financial Derivatives	94,883	97,445
LIABILITIES
Financial Derivatives	176,420	199,548
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
ASSETS
Loans held for sale	0	0
Financial Derivatives	0	0
LIABILITIES
Financial Derivatives	0	0
US Government Agencies Debt Securities [Member]
ASSETS
Securities available for sale, at fair value	66,095	66,013
US Government Agencies Debt Securities [Member] | Fair Value, Recurring [Member]
ASSETS
Securities available for sale, at fair value	66,095	66,013
US Government Agencies Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	62,860	62,199
US Government Agencies Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	3,235	3,814
US Government Agencies Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	0	0
US States and Political Subdivisions Debt Securities [Member]
ASSETS
Securities available for sale, at fair value	456,370	468,337
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member]
ASSETS
Securities available for sale, at fair value	456,370	468,337
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	0	0
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	456,370	468,337
US States and Political Subdivisions Debt Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Corporate Bond Securities [Member]
ASSETS
Securities available for sale, at fair value	238,830	244,712
Corporate Bond Securities [Member] | Fair Value, Recurring [Member]
ASSETS
Securities available for sale, at fair value	238,830	244,712
Corporate Bond Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Corporate Bond Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	238,830	244,712
Corporate Bond Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member]
ASSETS
Securities available for sale, at fair value	1,720,655	1,661,244
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	1,720,655	1,661,244
Collateralized Mortgage-Backed Securities [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Collateralized Securities, Other [Member]
ASSETS
Securities available for sale, at fair value	1,885	1,860
Collateralized Securities, Other [Member] | Fair Value, Recurring [Member]
ASSETS
Securities available for sale, at fair value	1,885	1,860
Collateralized Securities, Other [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
ASSETS
Securities available for sale, at fair value	0	0
Collateralized Securities, Other [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]
ASSETS
Securities available for sale, at fair value	1,885	1,860
Collateralized Securities, Other [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
ASSETS
Securities available for sale, at fair value	$ 0	$ 0