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GOODWILL AND OTHER INTANGIBLES
 12 Months Ended
Dec. 31, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
GOODWILL AND OTHER INTANGIBLES
GOODWILL AND OTHER INTANGIBLES

The Corporation’s goodwill was $712.0 million for the years ended December 31, 2024 and 2023.

During the fourth quarter of 2024 and 2023, the Corporation performed its annual goodwill impairment testing and the fair value exceeded the Corporation’s carrying value. Based on the analysis performed, the Corporation concluded goodwill was not impaired as of December 31, 2024 and 2023.

For additional details related to impairment testing, see the “GOODWILL” section of Management’s Discussion and Analysis of Financial Condition and Results of Operations included as Item 7 of this Annual Report on Form 10-K.

The carrying basis and accumulated amortization of recognized core deposit and other intangibles are noted below.
 20242023
Gross carrying amount$123,285 $123,285 
Accumulated amortization(103,457)(96,186)
Total core deposit and other intangibles$19,828 $27,099 
 
The core deposit intangibles and other intangibles are being amortized primarily on an accelerated basis over their estimated useful lives, generally over a period of two to ten years. Amortization expense for the years ended December 31, 2024, 2023 and 2022, was $7.3 million, $8.7 million and $8.3 million, respectively.
Estimated future amortization expense is summarized as follows:
Amortization Expense
2025$6,028 
20264,910 
20273,603 
20282,852 
20291,137 
After 20291,298 
 $19,828