Summary of Significant Accounting Policies and Estimates (Tables)

12 Months Ended

Dec. 31, 2021

Summary of Significant Accounting Policies and Estimates

Schedule of cash paid

Cash paid (in thousands) for:

	Year Ended December 31,
	2021		2020		2019
Interest	$	6,052	$	7,684	$	8,817
Income taxes, net of refunds	$	52,204	$	51,286	$	45,288

Schedule of activity in allowance for credit losses

Activity in our allowance for credit losses consisted of the following (in thousands):

	Year Ended December 31,								Year Ended December 31,
	2021								2020
	Service		Construction		Other		Total		Service		Construction		Other		Total
Balance at beginning of year	$	4,637	$	6,028	$	44	$	10,709	$	3,192	$	3,400	$	315	$	6,907
Impact of new accounting standard		—		—		—		—		310		331		54		695
Bad debt expense (benefit)		(970)		(496)		14		(1,452)		2,566		2,697		(10)		5,253
Deductions for uncollectible receivables written off, net of recoveries		(742)		(244)		—		(986)		(1,431)		(735)		—		(2,166)
Credit allowance of acquired receivables on the acquisition date		369		1,470		—		1,839		—		335		—		335
Reclass to other current liabilities		—		—		—		—		—		—		(315)		(315)
Balance at end of period	$	3,294	$	6,758	$	58	$	10,110	$	4,637	$	6,028	$	44	$	10,709