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Goodwill
 9 Months Ended
Sep. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Goodwill
The following schedule discloses the changes in the carrying value of goodwill:
Three Months endedNine Months ended
(Dollars in thousands)September 30,
2021		September 30,
2020		September 30,
2021		September 30,
2020
Net carrying value at beginning of period$514,013 513,355 514,013 456,418 
Acquisitions and adjustments— 658 — 57,595 
Net carrying value at end of period$514,013 514,013 514,013 514,013 
The Company performed its annual goodwill impairment test during the third quarter of 2021 and determined the fair value of the aggregated reporting units exceeded the carrying value, such that the Company’s goodwill was not considered impaired. Changes in the economic environment, operations of the aggregated reporting units, or other factors could result in the decline in the fair value of the aggregated reporting units which could result in a goodwill impairment in the future. Accumulated impairment charges were $40,159,000 as of September 30, 2021 and December 31, 2020.