FAIR VALUE MEASUREMENTS (Tables)

12 Months Ended

Dec. 31, 2024

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table presents the balances of financial assets and liabilities measured at fair value on a recurring basis as of December 31, (dollars in thousands):

	Fair Value Measurements at 2024 using
			Significant
	Quoted Prices in		Other		Significant
	Active Markets for		Observable		Unobservable
	Identical Assets		Inputs		Inputs
	Level 1		Level 2		Level 3		Balance
ASSETS
AFS securities:
U.S. government and agency securities	$	62,199	$	3,814	$	—	$	66,013
Obligations of states and political subdivisions		—		468,337		—		468,337
Corporate and other bonds(1)		—		244,712		—		244,712
MBS		—		1,661,244		—		1,661,244
Other securities		—		1,860		—		1,860
LHFS		—		9,420		—		9,420
Financial Derivatives(2)		—		97,445		—		97,445
LIABILITIES
Financial Derivatives(2)	$	—	$	199,548	$	—	$	199,548

⁽¹⁾ Other bonds include asset-backed securities.

⁽²⁾ Includes hedged and non-hedged derivatives.

	Fair Value Measurements at 2023 using
			Significant
	Quoted Prices in		Other		Significant
	Active Markets for		Observable		Unobservable
	Identical Assets		Inputs		Inputs
	Level 1		Level 2		Level 3		Balance
ASSETS
AFS securities:
U.S. government and agency securities	$	61,311	$	2,045	$	—	$	63,356
Obligations of states and political subdivisions		—		475,447		—		475,447
Corporate and other bonds(1)		—		241,889		—		241,889
MBS		—		1,448,817		—		1,448,817
Other securities		—		1,752		—		1,752
LHFS		—		6,710		—		6,710
Financial Derivatives(2)		—		93,027		—		93,027
LIABILITIES
Financial Derivatives(2)	$	—	$	206,561	$	—	$	206,561

⁽¹⁾ Other bonds include asset-backed securities.

⁽²⁾ Includes hedged and non-hedged derivatives.

Carrying Values and Estimated Fair Values of the Company's Financial Instruments

The carrying values and estimated fair values of the Company’s financial instruments as of December 31, are as follows (dollars in thousands):

	Fair Value Measurements at 2024 using
			Quoted Prices		Significant
			in Active		Other		Significant
			Markets for		Observable		Unobservable		Total Fair
			Identical Assets		Inputs		Inputs		Value
	Carrying
	Value		Level 1		Level 2		Level 3		Balance
ASSETS
Cash and cash equivalents	$	354,074	$	354,074	$	—	$	—	$	354,074
AFS securities		2,442,166		62,199		2,379,967		—		2,442,166
HTM securities		803,851		—		758,400		935		759,335
Restricted stock		102,954		—		102,954		—		102,954
LHFS		9,420		—		9,420		—		9,420
LHFI, net of deferred fees and costs		18,470,621		—		—		17,896,688		17,896,688
Financial Derivatives (1)		97,445		—		97,445		—		97,445
Accrued interest receivable		92,541		—		92,541		—		92,541
BOLI		493,396		—		493,396		—		493,396
LIABILITIES
Deposits	$	20,397,619	$	—	$	20,393,673	$	—	$	20,393,673
Borrowings		534,578		—		471,671		—		471,671
Accrued interest payable		26,214		—		26,214		—		26,214
Financial Derivatives (1)		199,548		—		199,548		—		199,548

⁽¹⁾ Includes hedged and non-hedged derivatives.

	Fair Value Measurements at 2023 using
			Quoted Prices		Significant
			in Active		Other		Significant
			Markets for		Observable		Unobservable		Total Fair
			Identical Assets		Inputs		Inputs		Value
	Carrying
	Value		Level 1		Level 2		Level 3		Balance
ASSETS
Cash and cash equivalents	$	378,131	$	378,131	$	—	$	—	$	378,131
AFS securities		2,231,261		61,311		2,169,950		—		2,231,261
HTM securities		837,378		—		806,834		1,240		808,074
Restricted stock		115,472		—		115,472		—		115,472
LHFS		6,710		—		6,710		—		6,710
LHFI, net of deferred fees and costs		15,635,043		—		—		15,148,256		15,148,256
Financial Derivatives (1)		93,027		—		93,027		—		93,027
Accrued interest receivable		91,370		—		91,370		—		91,370
BOLI		452,565		—		452,565		—		452,565
LIABILITIES
Deposits	$	16,818,129	$	—	$	16,799,791	$	—	$	16,799,791
Borrowings		1,311,858		—		1,154,694		—		1,154,694
Accrued interest payable		20,528		—		20,528		—		20,528
Financial Derivatives (1)		206,561		—		206,561		—		206,561

⁽¹⁾ Includes hedged and non-hedged derivatives.