Supplemental Financial Information Quarterly Results (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Unaudited Quarterly Results

The following represents the Company’s unaudited quarterly results for the years ended December 31, 2014 and 2013. 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, 2014		June 30, 2014		Sept. 30, 2014		Dec. 31, 2014
	(in millions, except per share data)
Total revenues	$	43.6	$	63.0	$	92.0	$	76.6
Total expenses	43.2		50.5		61.4		52.6
Income before taxes	0.4		12.5		30.6		24.0
Provision for taxes	0.1		4.5		10.8		8.7
Net income allocated to common stockholders	$	0.3	$	8.0	$	19.8	$	15.3
Earnings per share:
Basic	$	0.01	$	0.27	$	0.66	$	0.51
Diluted	$	0.01	$	0.27	$	0.66	$	0.51
Dividends declared per share	$	0.45	$	0.45	$	0.45	$	0.45

	For the Three Months Ended
	March 31, 2013		June 30, 2013		Sept. 30, 2013		Dec. 31, 2013
	(in millions, except per share data)
Total revenues	$	79.6	$	86.7	$	44.6	$	76.3
Total expenses	57.9		61.3		41.6		55.2
Income before taxes	21.7		25.4		3.0		21.1
Provision for taxes	8.1		9.9		1.2		5.3
Net income allocated to common stockholders	$	13.6	$	15.5	$	1.8	$	15.8
Earnings per share:
Basic	$	0.45	$	0.52	$	0.06	$	0.53
Diluted	$	0.45	$	0.52	$	0.06	$	0.53
Dividends declared per share	$	0.45	$	0.45	$	0.45	$	0.45