Goodwill (Tables)

3 Months Ended

Mar. 31, 2020

Goodwill

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, 2018	$	235,182	$	—	$	235,182
Acquisitions and purchase price adjustments (See Note 4)		579		96,686		97,265
Impact of segment reorganization		(1,101)		1,101		—
Balance at December 31, 2019		234,660		97,787		332,447
Acquisitions and purchase price adjustments (See Note 4)		—		14,944		14,944
Balance at March 31, 2020	$	234,660	$	112,731	$	347,391