Condensed Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash Flows Provided by Operating Activities from Continuing Operations	$ 66.5	$ 71.3
Cash Flows from Investing Activities from Continuing Operations:
Capital expenditures	(30.8)	(39.5)
Proceeds from disposal of property and other assets	0.9	1.7
Deposits into Capital Construction Fund	(4.4)	(4.4)
Withdrawals from Capital Construction Fund	4.4	4.4
Contribution from A&B	26.7	28.9
Net cash used in investing activities from continuing operations	(3.2)	(8.9)
Cash Flows from Financing Activities from Continuing Operations:
Proceeds from issuance of debt, net of issuance costs	185.1	48.5
Payments of debt	(49.9)	(40.9)
Payments on line-of-credit agreements, net	(6.0)	(10.7)
Distribution upon Separation	(155.0)
Proceeds from issuance of capital stock	24.8	9.0
Distribution to A&B for proceeds from issuance of capital stock	(21.7)
Cash assumed by A&B upon Separation	(2.5)
Dividends paid	(33.1)	(39.9)
Net cash used in financing activities from continuing operations	(58.3)	(34.0)
Cash Flows from Discontinued Operations:
Cash flows used in operating activities of discontinued operations	(30.1)	(29.1)
Cash flows used in investing activities of discontinued operations	(18.8)	(17.8)
Cash flows from financing activities of discontinued operations	33.9	21.0
Net cash flows used in discontinued operations	(15.0)	(25.9)
Net (Decrease) Increase in Cash and Cash Equivalents	(10.0)	2.5
Cash and cash equivalents, beginning of period	21.5	14.2
Cash and cash equivalents, end of period	11.5	16.7
Other Cash Flow Information:
Interest paid	6.5	6.1
Income taxes paid	28.2	0.2
Other Non-cash Information:
Depreciation and amortization expense	56.0	53.1
Capital expenditures included in accounts payable and accrued liabilities	$ 0.1	$ 0.2