Table of Contents The following table shows the number of loans and leases classified as troubled debt restructuring (TDR) during 2020, 2019 and 2018, by portfolio segment, as well as the recorded investment as of December 31. The classification between nonperforming and performing is shown at the time of modification. Modification programs focused on extending maturity dates or modifying payment patterns with most TDRs experiencing a combination of concessions. The modifications did not result in the contractual forgiveness of principal or interest. The TDRs during 2020 were the result of issues that predated the COVID-19 pandemic. There were two modifications during 2020, one modification during 2019, and no modifications during 2018 that resulted in an interest rate reduction below market rate. Consequently, the financial impact of the modifications was immaterial. There was one nonperforming commercial and agricultural TDR with a recorded investment of $0.41 million which had a payment default within the twelve months following modification for the year ended December 31, 2020, one nonperforming auto and light truck TDR with a recorded investment of $0.00 million which had a payment default within the twelve months following modification for the year ended December 31, 2019, and no TDRs which had a payment default within the twelve months following modification during the year ended December 31, 2018. The classification between nonperforming and performing is shown at the time of modification. Default occurs when a loan or lease is 90 days or more past due under the modified terms or transferred to nonaccrual. The following table shows the recorded investment of loans and leases classified as troubled debt restructurings as of December 31. 2020 2019 2018 (Dollars in thousands) Number of Modifications Recorded Investment Number of Modifications Recorded Investment Number of Modifications Recorded Investment Performing TDRs: Commercial and agricultural — $ — 1  $ 9,901  —  $ —  Auto and light truck — — —  —  —  —  Medium and heavy duty truck — — —  —  —  —  Aircraft — — —  —  —  —  Construction equipment — — —  —  —  —  Commercial real estate — — —  —  —  —  Residential real estate and home equity — — —  —  —  —  Consumer — — —  —  —  —  Total performing TDR modifications — — 1  9,901  —  —  Nonperforming TDRs: Commercial and agricultural — — 1  465  —  —  Auto and light truck — — —  —  1  285  Medium and heavy duty truck — — —  —  —  —  Aircraft 1 828 —  —  —  —  Construction equipment 1 9,905 —  —  —  —  Commercial real estate — — —  —  —  —  Residential real estate and home equity — — —  —  —  —  Consumer — — —  —  —  —  Total nonperforming TDR modifications 2 10,733 1  465  1  285  Total TDR modifications 2 $ 10,733 2  $ 10,366  1  $ 285  Year Ended December 31  (Dollars in thousands) 2020 2019 Performing TDRs $ 330 $ 10,238  Nonperforming TDRs 11,156 486  Total TDRs $ 11,486 $ 10,724  65