Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill and intangible assets

Goodwill and intangible assets consisted of the following at December 31:

	2022						2021
(in thousands)	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Goodwill
T&D	$	93,240	$	—	$	93,240	$	40,224	$	—	$	40,224
C&I	25,830		—		25,830		25,830		—		25,830
Foreign currency translation	(3,223)		—		(3,223)		11		—		11
Total goodwill	$	115,847	$	—	$	115,847	$	66,065	$	—	$	66,065
Amortizable Intangible Assets
Backlog	$	9,296	$	9,296	$	—	$	5,289	$	5,289	$	—
Customer relationships	71,138		16,094		55,044		31,381		11,179		20,202
Trade names	695		357		338		695		311		384
Below market lease	511		102		409		—		—		—
Foreign currency translation	(2,689)		(410)		(2,279)		1		—		1
Indefinite-lived Intangible Assets
Trade names	34,412		—		34,412		28,441		—		28,441
Foreign currency translation	(367)		—		(367)		26		—		26
Total intangible assets	$	112,996	$	25,439	$	87,557	$	65,833	$	16,779	$	49,054

Schedule of estimated future intangible asset amortization expense

As of December 31, 2022, estimated future intangible asset amortization expense for the each of the next five years and thereafter was as follows:

(in thousands)	Future Amortization Expense
2023	$	4,897
2024	4,897
2025	4,897
2026	4,897
2027	4,760
Thereafter	29,164
Total	$	53,512