Condensed Consolidated Statements of Income (Unaudited) (USD $) In Millions, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Revenue:
Operating revenue	$ 440.2	$ 437.3	$ 1,262.1	$ 1,176.0
Costs and Expenses:
Costs of goods sold, services and rentals	366.5	353.9	1,054.8	965.4
Selling, general and administrative	37.3	40.4	112.9	116.0
Operating costs and expenses	403.8	394.3	1,167.7	1,081.4
Operating Income	36.4	43.0	94.4	94.6
Other Income and (Expense):
Gain on insurance settlement	0	0	0	0.7
Gain on sale of investment and other	0	0	6.2	0.7
Equity in income (losses) of real estate affiliates	(1.1)	4.4	0.5	3.5
Interest income	0	0.1	0.2	2.1
Interest expense	(6.3)	(6.3)	(18.6)	(19.3)
Income Before Taxes	29.0	41.2	82.7	82.3
Income tax expense	10.7	15.6	31.6	31.8
Income From Continuing Operations	18.3	25.6	51.1	50.5
Income (Losses) From Discontinued Operations (net of taxes) (Note 5)	(9.6)	0.1	(18.5)	21.4
Net Income	$ 8.7	$ 25.7	$ 32.6	$ 71.9
Basic Earnings Per Share:
Continuing operations (in dollars per share)	$ 0.44	$ 0.62	$ 1.23	$ 1.23
Discontinued operations (in dollars per share)	$ (0.23)	$ 0	$ (0.45)	$ 0.52
Net income (in dollars per share)	$ 0.21	$ 0.62	$ 0.78	$ 1.75
Diluted Earnings Per Share:
Continuing operations (in dollars per share)	$ 0.44	$ 0.62	$ 1.22	$ 1.22
Discontinued operations (in dollars per share)	$ (0.23)	$ 0	$ (0.45)	$ 0.52
Net income (in dollars per share)	$ 0.21	$ 0.62	$ 0.77	$ 1.74
Weighted Average Number of Shares Outstanding:
Basic (in shares)	41.7	41.3	41.6	41.2
Diluted (in shares)	42.1	41.5	42.0	41.4
Cash Dividends Per Share (in dollars per share)	$ 0.315	$ 0.315	$ 0.945	$ 0.945