Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2020

Goodwill and Intangible Assets

Schedule of goodwill by reporting unit

The carrying amount of goodwill by reportable segment is as follows (in thousands):

	June 30,		December 31,
Reporting Segment	2020		2019
Power	$	26,194	$	26,194
Pipeline		52,415		52,415
Utilities		37,312		37,312
Transmission		59,032		59,032
Civil		40,150		40,150
Total Goodwill	$	215,103	$	215,103

Summary of intangible asset categories, amounts and the average amortization periods

The table below summarizes the intangible asset categories and amounts, which are amortized on a straight-line basis (in thousands):

	June 30, 2020						December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Intangible assets, net		Gross Carrying Amount		Accumulated Amortization		Intangible assets, net
Tradename	$	16,040		(14,213)		1,827	$	16,040	$	(13,216)	$	2,824
Customer relationships		91,000		(27,901)		63,099		91,000		(24,353)		66,647
Non-compete agreements		1,900		(1,680)		220		1,900		(1,580)		320
Other		275		(275)		—		275		(237)		38
Total	$	109,215	$	(44,069)	$	65,146	$	109,215	$	(39,386)	$	69,829

Schedule of estimated future amortization expense for intangible assets

Estimated future amortization expense for intangible assets is as follows (in thousands):

	Estimated
	Intangible
	Amortization
For the Years Ending December 31,	Expense
2020 (remaining six months)	$	4,134
2021		7,577
2022		6,416
2023		5,581
2024		4,862
Thereafter		36,576
	$	65,146