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Loan Servicing Rights (Tables)
12 Months Ended
Dec. 31, 2020
Text Block [Abstract]  
Components of Loan Servicing Rights and Valuation Allowance
The following table summarizes the carrying values and activity related to loan servicing rights and the related valuation allowance:
Years Ended December 31,
(dollars in thousands)202020192018
Balance at beginning of period$25,399 $24,512 $24,690 
Additions (1)12,810 6,499 4,264 
Amortization(10,085)(5,612)(4,442)
Balance before valuation allowance at end of period28,124 25,399 24,512 
Valuation allowance:
Balance at beginning of period(31)(15)(29)
(Additions)/recoveries(1,376)(16)14 
Balance at end of period(1,407)(31)(15)
Loan servicing rights, net$26,717 $25,368 $24,497 
(1)     Additions in 2018 include loan servicing rights of $0.3 million acquired from Klein in November 2018.