Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in Carrying Amount of Goodwill

The following table presents the changes in the carrying amount of goodwill since its inception through December 31, 2022:

(in thousands)	Civil		Building		Specialty Contractors		Total
Gross goodwill as of December 31, 2020	$	492,074	$	424,724	$	156,193	$	1,072,991
Accumulated impairment as of December 31, 2020	(286,931)		(424,724)		(156,193)		(867,848)
Goodwill as of December 31, 2020	205,143		—		—		205,143
2021 activity	—		—		—		—
Goodwill as of December 31, 2021	205,143		—		—		205,143
Current year activity	—		—		—		—
Goodwill as of December 31, 2022(a)	$	205,143	$	—	$	—	$	205,143

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(a)As of December 31, 2022, accumulated impairment was $867.8 million.

Schedule of Finite and Indefinite Lived Intangible Assets

Intangible assets consist of the following:

	As of December 31, 2022								Weighted-Average Amortization Period
(in thousands)	Cost		Accumulated Amortization		Accumulated Impairment Charge		Carrying Value
Trade names (non-amortizable)	$	117,600	$	—	$	(67,190)	$	50,410	Indefinite
Trade names (amortizable)	69,250		(25,886)		(23,232)		20,132		20 years
Contractor license	6,000		—		(6,000)		—		N/A
Customer relationships	39,800		(23,155)		(16,645)		—		N/A
Construction contract backlog	149,290		(149,290)		—		—		N/A
Total	$	381,940	$	(198,331)	$	(113,067)	$	70,542

	As of December 31, 2021								Weighted-Average Amortization Period
(in thousands)	Cost		Accumulated Amortization		Accumulated Impairment Charge		Carrying Value
Trade names (non-amortizable)	$	117,600	$	—	$	(67,190)	$	50,410	Indefinite
Trade names (amortizable)(a)	69,250		(23,650)		(23,232)		22,368		20 years
Contractor license	6,000		—		(6,000)		—		N/A
Customer relationships	39,800		(23,053)		(16,645)		102		12 years
Construction contract backlog	149,290		(137,102)		—		12,188		3 years
Total	$	381,940	$	(183,805)	$	(113,067)	$	85,068

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(a)In 2021, the Company sold an immaterial subsidiary, which had amortizable trade names with a gross cost of $5.1 million and a carrying value of $2.6 million at the time of sale.