Selected Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2015

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (unaudited)

	First  Quarter		Second Quarter		Third Quarter (2)		Fourth Quarter (3)		Total
	In millions, except per share data
2015
Total revenues	$	319.7	$	365.3	$	386.2	$	378.7	$	1,449.9
Net income	$	62.2	$	45.4	$	39.5	$	58.2	$	205.3
Per Share Data (1)
Basic	$	1.41	$	1.04	$	0.92	$	1.38	$	4.76
Diluted	$	1.39	$	1.03	$	0.91	$	1.37	$	4.69
2014
Total revenues	$	286.6	$	365.8	$	397.2	$	401.4	$	1,451.0
Net income	$	42.1	$	53.1	$	51.3	$	58.5	$	205.0
Per Share Data (1)
Basic	$	0.92	$	1.17	$	1.16	$	1.32	$	4.55
Diluted	$	0.90	$	1.15	$	1.14	$	1.30	$	4.48

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(1) Quarterly earnings per share may not be additive, as per share amounts are computed independently for each quarter and the full year is based on the respective weighted average common shares and common stock equivalents outstanding.

(2) In the third quarter of 2015, net income included $31.1 million of net impairment losses and $4.5 million of net disposition gains, both related to the decision to exit the majority of the marine investments within the Portfolio Management segment.

(3) In the fourth quarter of 2015, net income included $9.0 million of net disposition gains related to the decision to exit the majority of the marine investments within the Portfolio Management segment. In addition, we recorded $14.1 million of expense attributable to an increase in our effective state income tax rate, $7.7 million of benefit resulting from a reduction in the statutory income tax rate in the UK, and $5.6 million of net expenses associated with an early retirement program offered to certain employees.