Goodwill and Identifiable Intangible Assets, Net (Tables)

3 Months Ended

Mar. 31, 2022

Goodwill and Identifiable Intangible Assets, Net

Schedule of changes in the carrying amount of goodwill

The changes in the carrying amount of goodwill are as follows (in thousands):

	Mechanical Services		Electrical Services
	Segment		Segment		Total
Balance at December 31, 2020	$	307,448	$	156,944	$	464,392
Acquisitions and purchase price adjustments (See Note 5)		52,771		74,951		127,722
Impact of segment reorganization		1,101		(1,101)		—
Balance at December 31, 2021		361,320		230,794		592,114
Acquisitions and purchase price adjustments (See Note 5)		1,833		—		1,833
Balance at March 31, 2022	$	363,153	$	230,794	$	593,947

Schedule of future amortization expense of identifiable intangible assets

At March 31, 2022, future amortization expense of identifiable intangible assets is as follows (in thousands):

Year ending December 31—
2022 (remainder of the year)	$	33,715
2023		34,532
2024		32,343
2025		30,156
2026		29,312
Thereafter		131,932
Total	$	291,990