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Goodwill and Other Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2021
Text Block [Abstract]  
Schedule of Carrying Value of Goodwill
The carrying value of goodwill from continuing operations as of December 31, 2021 and 2020 was as follows:
(in thousands)Regulated EnergyUnregulated EnergyTotal Goodwill
Balance at December 31, 2020$7,617 $31,114 $38,731 
Additions (1)
72 5,905 5,977 
Balance at December 31, 2021$7,689 $37,019 $44,708 
(1)Includes goodwill from the purchase of operating assets of Diversified Energy in December 2021 and Elkton Gas in the third quarter of 2020.
Schedule of Carrying Value and Accumulated Amortization of Intangible Assets
The carrying value and accumulated amortization of intangible assets subject to amortization as of December 31, 2021 and 2020 are as follows:
As of December 31,
 20212020
(in thousands)Gross
Carrying
Amount
Accumulated
Amortization
Gross
Carrying
Amount
Accumulated
Amortization
Customer relationships (1)
$16,814 $5,125 $10,680 $4,269 
Non-Compete agreements (1)
2,431 1,078 2,375 768 
Patents452 354 452 236 
Other270 218 270 212 
Total$19,967 $6,775 $13,777 $5,485