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Goodwill and Other Intangible Assets (Tables)
 9 Months Ended
Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Goodwill
The following table details changes in the recorded amount of goodwill:
(Dollars in thousands)September 30, 2023December 31, 2022
Goodwill, beginning of year$292,397 $264,193 
Goodwill recorded from acquisitions62,709 28,204 
Goodwill, end of period$355,106 $292,397 
Summary of Finite Lived Intangible Assets
Other intangible assets were comprised of the following at September 30, 2023, and at December 31, 2022:
(Dollars in thousands)Core DepositsCustomer RelationshipsIndefinite-Lived Trade NamesTotal
September 30, 2023
Gross intangibles$26,464 $39,241 $2,491 $68,196 
Intangibles recorded from acquisitions27,722 — — 27,722 
Accumulated amortization(23,952)(20,076)— (44,028)
Total acquisition-related intangibles$30,234 $19,165 $2,491 $51,890 
Servicing rights1,498 
Total other intangibles$53,388 
December 31, 2022
Gross intangibles$26,464 $25,173 $1,274 $52,911 
Intangibles recorded from acquisitions— 14,067 1,217 15,284 
Accumulated amortization(20,667)(15,412)— (36,079)
Total acquisition-related intangibles$5,797 $23,828 $2,491 $32,116 
Servicing rights1,816 
Total other intangibles$33,932 
Summary of Future Amortization of Intangible Assets
The following table details estimated aggregate future amortization of other intangible assets at September 30, 2023:
(Dollars in thousands)Core DepositsCustomer RelationshipsTotal
Remaining three months of 2023$1,692 $1,554 $3,246 
20245,881 5,343 11,224 
20254,614 4,255 8,869 
20263,738 3,114 6,852 
20273,046 2,289 5,335 
Thereafter11,263 2,610 13,873 
Total$30,234 $19,165 $49,399