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Goodwill and Identifiable Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill by reportable segment during the years ended December 31, 2019 and 2018 were as follows (in thousands):  

	United States electrical construction and facilities services segment				United States mechanical construction and facilities services segment				United States building services segment				United States industrial services segment				Total
Balance at December 31, 2017	$	125,707			$	256,265			$	255,733			$	327,188			$	964,893
Acquisitions, sales and purchase price adjustments	7,500				56				18,438				—				25,994
Balance at December 31, 2018	133,207				256,321				274,171				327,188				990,887
Acquisitions, sales and purchase price adjustments	9,338				48,699				14,987				—				73,024
Intersegment transfers	—				(5,800		)		—				5,800				—
Balance at December 31, 2019	$	142,545			$	299,220			$	289,158			$	332,988			$	1,063,911

Schedule of Intangible Assets

Identifiable intangible assets as of December 31, 2019 and 2018 consist of the following (in thousands):  

	December 31, 2019
	Gross Carrying Amount				Accumulated Amortization				Accumulated Impairment Charge				Total
Contract backlog	$	66,745			$	(61,651	)		$	—			$	5,094
Developed technology/Vendor network	95,661				(60,156		)		—				35,505
Customer relationships	644,755				(277,601		)		(4,834		)		362,320
Trade names (amortized)	31,148				(21,830		)		—				9,318
Trade names (unamortized)	251,440				—				(52,233		)		199,207
Total	$	1,089,749			$	(421,238	)		$	(57,067	)		$	611,444

	December 31, 2018
	Gross Carrying Amount				Accumulated Amortization				Accumulated Impairment Charge				Total
Contract backlog	$	58,945			$	(56,812	)		$	—			$	2,133
Developed technology/Vendor network	95,661				(55,318		)		—				40,343
Customer relationships	522,855				(240,073		)		(4,834		)		277,948
Trade names (amortized)	31,148				(20,893		)		—				10,255
Trade names (unamortized)	209,840				—				(52,233		)		157,607
Total	$	918,449			$	(373,096	)		$	(57,067	)		$	488,286

Schedule of Estimated Future Amortization Expense

The following table presents the estimated future amortization expense of identifiable intangible assets in the following years (in thousands):  

2020	$	56,680
2021	50,792
2022	48,589
2023	47,650
2024	47,300
Thereafter	161,226
	$	412,237

X

- Definition

Tabular disclosure of finite and indefinite lived intangible assets, in total and by major class, including the gross carrying amount and accumulated amortization. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
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