Selected Quarterly Financial Data (unaudited) (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (unaudited)

	First Quarter		Second Quarter (2)		Third Quarter (3)		Fourth Quarter		Total
	In millions, except per share data
2020
Total revenues from continuing operations	$	299.4	$	300.5	$	304.4	$	304.9	$	1,209.2
Net income from continuing operations	$	47.2	$	37.0	$	48.2	$	17.8	$	150.2
Net (loss) income from discontinued operations	(0.9)		2.3		(0.3)		—		1.1
Net income from consolidated operations	$	46.3	$	39.3	$	47.9	$	17.8	$	151.3
Share Data (1)
Basic earnings per share from continuing operations	$	1.35	$	1.06	$	1.38	$	0.51	$	4.30
Basic earnings per share from discontinued operations	(0.02)		0.06		(0.01)		—		0.03
Basic earnings per share from consolidated operations	$	1.33	$	1.12	$	1.37	$	0.51	$	4.33
Diluted earnings per share from continuing operations	$	1.33	$	1.05	$	1.36	$	0.50	$	4.24
Diluted earnings per share from discontinued operations	(0.02)		0.06		(0.01)		—		0.03
Diluted earnings per share from consolidated operations	$	1.31	$	1.11	$	1.35	$	0.50	$	4.27
2019
Total revenues from continuing operations	$	305.3	$	297.5	$	298.8	$	300.5	$	1,202.1
Net income from continuing operations	$	41.2	$	60.3	$	37.2	$	42.1	$	180.8
Net income from discontinued operations	0.3		7.7		7.9		14.5		30.4
Net income from consolidated operations	$	41.5	$	68.0	$	45.1	$	56.6	$	211.2
Share Data (1)
Basic earnings per share from continuing operations	$	1.13	$	1.68	$	1.05	$	1.21	$	5.07
Basic earnings per share from discontinued operations	0.01		0.21		0.23		0.41		0.85
Basic earnings per share from consolidated operations	$	1.14	$	1.89	$	1.28	$	1.62	$	5.92
Diluted earnings per share from continuing operations	$	1.11	$	1.65	$	1.03	$	1.18	$	4.97
Diluted earnings per share from discontinued operations	0.01		0.21		0.22		0.41		0.84
Diluted earnings per share from consolidated operations	$	1.12	$	1.86	$	1.25	$	1.59	$	5.81

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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 second quarter of 2019, net income included a $2.8 million deferred income tax adjustment due to a reduction of the corporate income tax rate enacted in Alberta, Canada.

(3) In the third quarter of 2020, net income included a $12.3 million deferred income tax adjustment due to the elimination of a previously announced corporate income tax rate reduction in the United Kingdom.