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Goodwill and Intangible Assets - Summary of Goodwill and Intangible Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Goodwill    
Gross Carrying Amount $ 66,065 $ 66,065
Accumulated Amortization 0 0
Net Carrying Amount 66,065 66,065
Amortizable Intangible Assets    
Accumulated Amortization 16,779 14,467
Net Carrying Amount 20,587  
Total intangible assets, Gross Carrying Amount 65,833 65,832
Total intangible assets, Net Carrying Amount 49,054 51,365
Trade names    
Amortizable Intangible Assets    
Indefinite-lived Intangible Assets 28,467 28,466
Backlog    
Amortizable Intangible Assets    
Gross Carrying Amount 5,289 5,289
Accumulated Amortization 5,289 5,289
Net Carrying Amount 0 0
Customer relationships    
Amortizable Intangible Assets    
Gross Carrying Amount 31,381 31,381
Accumulated Amortization 11,179 8,914
Net Carrying Amount 20,202 22,467
Trade names    
Amortizable Intangible Assets    
Gross Carrying Amount 696 696
Accumulated Amortization 311 264
Net Carrying Amount 385 432
T&D    
Goodwill    
Gross Carrying Amount 40,224 40,224
Accumulated Amortization 0 0
Net Carrying Amount 40,224 40,224
C&I    
Goodwill    
Gross Carrying Amount 25,841 25,841
Accumulated Amortization 0 0
Net Carrying Amount $ 25,841 $ 25,841