Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2021

Quarterly Financial Information Disclosure [Abstract]

Schedule Quarterly Financial Data

The following tables contain selected unaudited statements of operations information for each quarter of 2021 and 2020. The following information reflects all normal recurring adjustments necessary for a fair presentation of the information for the periods presented. The operating results for any quarter are not necessarily indicative of results for any future period.

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
2021	(amounts in thousands, except per share data)
Revenue from services	$	329,241	$	331,827	$	374,905	$	640,679
Gross profit(a)	71,465		72,590		83,794		147,150
Net income attributable to common stockholders	19,448		11,548		23,433		77,573
Net income per share attributable to common stockholders - Basic(b)	$	0.54	$	0.32	$	0.63	$	2.10
Net income per share attributable to common stockholders - Diluted(b)	$	0.53	$	0.31	$	0.62	$	2.07

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter
2020	(amounts in thousands, except per share data)
Revenue from services	$	210,064	$	216,779	$	193,968	$	215,606
Gross profit(a)	49,603		50,734		48,003		54,392
Consolidated net (loss) income	(1,768)		(14,048)		(1,148)		4,822
Net (loss) income attributable to common stockholders	(2,089)		(14,151)		(1,334)		4,612
Net (loss) income per share attributable to common stockholders - Basic and Diluted(b)	$	(0.06)	$	(0.39)	$	(0.04)	$	0.13

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(a) Excludes depreciation and amortization.

(b) The sum of the quarterly per share amounts may not equal amounts reported for year-to-date due to the effects of rounding and changes in the number of weighted average shares outstanding used in the calculation.