Quarterly Results of Operations (Unaudited)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Quarterly Results of Operations (Unaudited)

23. QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)

The following table presents selected unaudited quarterly financial data for each full quarterly period for the years ended December 31, 2020 and 2019:

	Quarter Ended
(in thousands, except per share data)		December 31, 2020			September 30, 2020			June 30, 2020			March 31, 2020			December 31, 2019			September 30, 2019			June 30, 2019			March 31, 2019
Revenues		$	108,741		$	84,705		$	73,766		$	61,031		$	67,876		$	57,623		$	57,401		$	50,954
Cost of revenues			73,377			51,828			45,889			44,398			47,735			39,804			39,349			37,095
Selling, general and administrative expense			20,736			18,064			19,318			20,520			13,751			12,636			12,129			10,593
Initial public offering expense			—			6,378			—			530			504			20			73			13
Fair value changes in business    acquisitions contingent consideration			(4,445	)		13,404			3,983			—			2,062			256			(926	)		—
Depreciation and amortization expense			10,190			9,740			9,784			7,560			7,443			7,412			6,401			6,449
Income (loss) from operations			8,883			(14,709	)		(5,208	)		(11,977	)		(3,619	)		(2,505	)		375			(3,196	)
Other (expense) income
Other (expense) income, net			(2,734	)		(9,637	)		21,933			(29,830	)		(7,339	)		(2,460	)		(1,228	)		49
Interest expense, net			(2,923	)		(3,043	)		(5,260	)		(2,593	)		(2,165	)		(2,130	)		(1,181	)		(1,279	)
Income (loss) before benefit from income taxes			3,226			(27,389	)		11,465			(44,400	)		(13,123	)		(7,095	)		(2,034	)		(4,426	)
Income tax expense (benefit)			2,414			3,348			(1,759	)		(3,152	)		(1,813	)		(412	)		(1,712	)		816
Net income (loss)		$	812		$	(30,737	)	$	13,224		$	(41,248	)	$	(11,310	)	$	(6,683	)	$	(322	)	$	(5,242	)
Net (loss) income per share attributable    to common stockholders—Basic		$	(0.13	)	$	(2.99	)	$	0.71		$	(5.24	)	$	(1.89	)	$	(1.34	)	$	(0.59	)	$	(1.13	)
Net (loss) income per share attributable    to common stockholders—Diluted		$	(0.13	)	$	(2.99	)	$	0.40		$	(5.24	)	$	(1.89	)	$	(1.34	)	$	(0.59	)	$	(1.13	)

Net (loss) income per basic and diluted shares are computed independently for each of the quarters presented, based on basic and diluted shares outstanding per quarter, and therefore, it may not sum to the value for the full year.