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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

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