Supplemental Financial Information Quarterly Results (unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Unaudited Quarterly Results

The following represents the Company’s unaudited quarterly results for the years ended December 31, 2018 and 2017. These quarterly results were prepared in accordance with U.S. generally accepted accounting principles and reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of the results.

	For the Three Months Ended
	March 31, 2018		June 30, 2018		Sept. 30, 2018		Dec. 31, 2018
	(in millions, except per share data)
Total revenues	$	87.5	$	88.5	$	86.8	$	89.1
Total operating expenses	68.5		69.0		66.1		67.5
Total operating income	19.0		19.5		20.7		21.6
Interest expense	5.3		5.6		5.7		5.9
Income before taxes	13.7		13.9		15.0		15.7
Provision for taxes	7.4		3.3		3.8		4.7
Net income	$	6.3	$	10.6	$	11.2	$	11.0
Earnings per share:
Basic	$	0.21	$	0.39	$	0.45	$	0.46
Diluted	$	0.21	$	0.38	$	0.43	$	0.45

	For the Three Months Ended
	March 31, 2017			June 30, 2017		Sept. 30, 2017			Dec. 31, 2017
	(in millions, except per share data)
Total revenues	$	56.9		$	67.3	$	48.1		$	66.9
Total operating expenses	54.0			56.9		57.5			63.9
Total operating income (loss)	2.9			10.4		(9.4		)	3.0
Interest expense	0.8			0.8		0.9			4.7
Income (loss) before taxes	2.1			9.6		(10.3		)	(1.7		)
Provision (benefit) for taxes	2.9			3.3		(4.4		)	24.5
Net income (loss)	$	(0.8	)	$	6.3	$	(5.9	)	$	(26.2	)
Earnings (loss) per share:
Basic	$	(0.02	)	$	0.20	$	(0.18	)	$	(0.85	)
Diluted	$	(0.02	)	$	0.20	$	(0.18	)	$	(0.85	)