GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Change in the Carrying Value of Goodwill

The change in the carrying value of goodwill for the years ended December 31, 2023 and 2022 is summarized below for both the total Company and by the Company's reporting units.

	December 31,
(dollars in thousands)	2023		2022
Consolidated
Carrying amount of goodwill at beginning of year	$	1,015,646	$	1,012,620
Fair value adjustments related to acquisitions in prior year	—		3,026
Carrying amount of goodwill at end of year	$	1,015,646	$	1,015,646
Banking
Carrying amount of goodwill at beginning of year	$	951,148	$	948,122
Fair value adjustments related to acquisitions in prior year	—		3,026
Carrying amount of goodwill at end of year	$	951,148	$	951,148
Premium Finance Division
Carrying amount of goodwill at beginning of year	$	64,498	$	64,498
Carrying amount of goodwill at end of year	$	64,498	$	64,498

Schedule of Information Related to Acquired Intangible Assets

The following is a summary of information related to acquired intangible assets:

	As of December 31, 2023				As of December 31, 2022
(dollars in thousands)	Gross Amount		Accumulated Amortization		Gross Amount		Accumulated Amortization
Amortized intangible assets:
Core deposit premiums	$	86,454	$	59,045	$	99,032	$	63,518
Referral relationships	88,651		29,790		88,651		20,367
Trade names	2,734		1,581		2,734		1,096
Patent	420		84		420		42
Non-compete agreements	570		380		732		352
	$	178,829	$	90,880	$	191,569	$	85,375

Schedule of Estimated Amortization Expense

The estimated amortization expense for each of the next five years and thereafter is as follows (in thousands):

2024	$	17,189
2025	15,937
2026	12,394
2027	11,126
2028	10,005
Thereafter	21,298
	$	87,949