Goodwill and Intangible Assets

3 Months Ended

Mar. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Intangible Assets

Goodwill

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

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

The Company performed its annual impairment test in the fourth quarter of 2021 and concluded goodwill was not impaired. In addition, the Company determined that no triggering events occurred and no circumstances changed since the date of our annual impairment test that would more likely than not reduce the fair value of the Civil reporting unit below its carrying amount.

The Company will continue to monitor events and circumstances for changes that indicate the Civil reporting unit goodwill would need to be reevaluated for impairment during future interim periods prior to the annual impairment test. These future

events and circumstances include, but are not limited to, changes in the overall financial performance of the Civil reporting unit, impacts to our business as a result of the COVID-19 pandemic, as well as other quantitative and qualitative factors which could indicate potential triggering events for possible impairment.

Intangible Assets

Intangible assets consist of the following:

	As of March 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		(24,209)		(23,232)		21,809		20 years
Contractor license	6,000		—		(6,000)		—		N/A
Customer relationships	39,800		(23,114)		(16,645)		41		12 years
Construction contract backlog	149,290		(141,987)		—		7,303		3 years
Total	$	381,940	$	(189,310)	$	(113,067)	$	79,563

	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)	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

Amortization expense for the three months ended March 31, 2022 and 2021 was $5.5 million and $6.6 million, respectively. As of March 31, 2022, future amortization expense is estimated to be $9.0 million for the remainder of 2022, $2.2 million per year for the years 2023 through 2027 and $9.2 million thereafter.

The Company performed its annual impairment test for non-amortizable trade names during the fourth quarter of 2021. Based on this assessment, the Company concluded that its non-amortizable trade names were not impaired. In addition, the Company determined that no triggering events occurred and no circumstances changed since the date of our annual impairment test that would indicate impairment of its non-amortizable trade names.