Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (Unaudited)

Selected Quarterly Financial Data (Unaudited)

	Three Months Ended
	March 31, 2019		June 30, 2019		September 30, 2019		December 31, 2019
	(in millions except per share data)
Revenues	$	410.9	$	434.1	$	445.0	$	446.9
Operating costs:
Cost of revenues	332.8		345.7		356.7		369.3
Selling, general, and administrative expenses	40.8		46.1		45.5		47.1
Operating profit	37.3		42.3		42.8		30.5
Income before income taxes	35.6		40.8		41.9		28.5
Provision for income taxes	7.9		9.0		9.2		7.4
Net income	$	27.7	$	31.8	$	32.7	$	21.1
Net income per common share:
Basic	$	0.57	$	0.66	$	0.68	$	0.44
Diluted	$	0.56	$	0.65	$	0.67	$	0.43

	Three Months Ended
	March 31, 2018		June 30, 2018		September 30, 2018		December 31, 2018
	(in millions except per share data)
Revenues	$	354.4	$	353.0	$	378.6	$	374.4
Operating costs:
Cost of revenues	285.6		283.0		308.9		310.9
Selling, general, and administrative expenses	37.6		39.4		40.1		36.8
Impairment charge	—		—		23.2		—
Operating profit	31.2		30.6		6.4		26.7
Income before income taxes	30.2		29.4		6.6		28.8
Provision for income taxes	8.0		6.8		3.4		1.1
Net income	$	22.2	$	22.6	$	3.2	$	27.7
Net income per common share(1):
Basic	$	0.45	$	0.46	$	0.07	$	0.56
Diluted	$	0.45	$	0.46	$	0.07	$	0.56

⁽¹⁾ For periods prior to the Separation, the denominator for basic and diluted net income per common share was calculated using the 48.8 million shares of common stock outstanding immediately following the Separation.