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Goodwill and Other Intangible Assets
 12 Months Ended
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
 
The following table provides information for intangible assets subject to amortization for the years ended December 31, 2022 and 2021:                                                         
 December 31,
 20222021
Amortizable intangible assets:  
Core deposit intangibles - gross$74,899 74,899 
Less: accumulated amortization(66,367)(62,158)
Core deposit intangibles - net$8,532 12,741 
Customer and Contract intangible assets - gross$12,775 12,775 
Customer list intangible assets disposed of due to sale of insurance business— (1,547)
Less: accumulated amortization(12,747)(11,133)
Customer and Contract intangible assets - net28 95 
Total intangible assets - net$8,560 12,836 
 
The following information shows the actual aggregate amortization expense for the years ended December 31, 2022, 2021 and 2020 as well as the estimated aggregate amortization expense, based upon current levels of intangible assets, for each of the five succeeding fiscal years:
                                                    
For the year ended December 31, 2020$6,856 
For the year ended December 31, 20215,553 
For the year ended December 31, 20224,277 
For the year ending December 31, 20233,270 
For the year ending December 31, 20242,452 
For the year ending December 31, 20251,662 
For the year ending December 31, 2026871 
For the year ending December 31, 2027305 
 
The following table provides information for the changes in the carrying amount of goodwill:
Total
Balance at December 31, 2020$382,279 
Purchase accounting adjustment77 
Goodwill disposed of due to sale of insurance business(1,359)
Balance at December 31, 2021380,997 
Balance at December 31, 2022$380,997 
 
We performed our annual goodwill impairment test as of June 30, 2022 in accordance with ASC 350, Intangibles - Goodwill and Other, and concluded that goodwill was not impaired. As of December 31, 2022, 2021 and 2020, there were no events or changes in circumstances that would cause us to update that goodwill impairment test and we have concluded there is no impairment of goodwill.