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Goodwill and Other Intangible Assets (Tables)
 3 Months Ended
Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Goodwill
The following table details changes in the recorded amount of goodwill:
(Dollars in thousands)March 31, 2022December 31, 2021
Goodwill, beginning of year$264,193 $171,260 
Goodwill recorded from acquisitions39,458 92,933 
Goodwill, end of period$303,651 $264,193 
Summary of Finite Lived Intangible Assets
Other intangible assets were comprised of the following at end of period, March 31, 2022, and end of year, December 31, 2021:
(Dollars in thousands)Core DepositsCustomer RelationshipsTotal
March 31, 2022
Gross intangibles$26,467 $25,174 $51,641 
Intangibles recorded from acquisitions (a)— 11,990 11,990 
Accumulated amortization(19,464)(10,561)(30,025)
Total acquisition-related intangibles$7,003 $26,603 $33,606 
Servicing rights2,117 
Indefinite-lived intangibles (b)2,491 
Total other intangibles$38,214 
December 31, 2021
Gross intangibles$22,233 $12,495 $34,728 
Intangibles recorded from acquisitions (c)4,233 13,014 17,247 
Accumulated amortization(19,048)(9,603)(28,651)
Total acquisition-related intangibles$7,418 $15,906 $23,324 
Servicing rights2,218 
Indefinite-lived intangibles (d)1,274 
Total other intangibles$26,816 
(a) Customer Relationship intangible assets included $1.2 million of non-compete intangible assets related to the Vantage acquisition.
(b) Included $1.2 million of trade name intangible assets related to the Vantage acquisition and $1.3 million of trade name
intangible assets related to the NSL acquisition.
(c) Customer Relationship intangible assets consisted of $0.3 million of non-compete intangible assets related to the NSL acquisition.
(d) Included $1.3 million of trade name intangible assets related to the NSL acquisition.
Summary of Future Amortization of Intangible Assets The following table details estimated aggregate future amortization of other intangible assets at March 31, 2022:
(Dollars in thousands)Core DepositsCustomer RelationshipsTotal
2022$1,204 $4,558 $5,762 
20231,257 5,888 7,145 
20241,058 5,014 6,072 
2025891 3,944 4,835 
2026731 2,803 3,534 
Thereafter1,862 4,396 6,258 
Total$7,003 $26,603 $33,606 
Summary of Mortgage Servicing Rights Activity
The following is an analysis of activity of servicing rights for the periods ended March 31, 2022 and December 31, 2021:
(Dollars in thousands)March 31, 2022December 31, 2021
Balance, beginning of year$2,218 $2,486 
Amortization(167)(775)
Servicing rights originated66 519 
Valuation allowance— (12)
Balance, end of period$2,117 $2,218 
Summary of Discount Rates and Prepayment Speeds Servicing Rights
The following is the breakdown of the discount rates and prepayment speeds of servicing rights for the periods ended March 31, 2022 and December 31, 2021:
March 31, 2022December 31, 2021
Minimum MaximumMinimumMaximum
Discount rates8.5 %11.0 %8.3 %10.8 %
Prepayment speeds12.6 %22.7 %8.9 %27.1 %