Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2020

Goodwill and Intangible Assets

Schedule of goodwill by reporting unit

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

	March 31,		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, amounts and the average amortization periods, which are on a straight-line basis (in thousands):

		March 31, 2020						December 31, 2019
	Weighted Average Life	Gross Carrying Amount		Accumulated Amortization		Intangible assets, net		Gross Carrying Amount		Accumulated Amortization		Intangible assets, net
Tradename	9 years	$	16,040		(13,714)		2,326	$	16,040	$	(13,216)	$	2,824
Customer relationships	17 years		91,000		(26,128)		64,872		91,000		(24,353)		66,647
Non-compete agreements	5 years		1,900		(1,653)		247		1,900		(1,580)		320
Other	3 years		275		(260)		15		275		(237)		38
Total	16 years	$	109,215	$	(41,755)	$	67,460	$	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 nine months)	$	6,448
2021		7,577
2022		6,416
2023		5,581
2024		4,862
Thereafter		36,576
	$	67,460