Selected Quarterly Financial Data

12 Months Ended

Dec. 31, 2011

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information

NOTE 24.    Selected Quarterly Financial Data (unaudited)

	First Quarter(b)		Second Quarter		Third Quarter		Fourth Quarter		Total
	In millions, except per share data
2011
Gross income	$	282.1	$	329.6	$	339.7	$	357.1	$	1,308.5
Net income	$	19.9	$	26.4	$	32.9	$	31.6	$	110.8
Per Share Data(a)
Basic	$	0.43	$	0.57	$	0.71	$	0.68	$	2.39
Diluted	$	0.42	$	0.56	$	0.70	$	0.67	$	2.35
2010
Gross income	$	281.9	$	294.8	$	314.4	$	313.8	$	1,204.9
Net income	$	18.7	$	21.5	$	21.1	$	19.5	$	80.8
Per Share Data(a)
Basic	$	0.41	$	0.47	$	0.45	$	0.42	$	1.75
Diluted	$	0.40	$	0.46	$	0.45	$	0.42	$	1.72

(a) Quarterly earnings per share results 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.

(b) Gross income and net income in the first quarter of each year is typically lower than the subsequent quarters due to seasonal inactivity at ASC.