Financial Information for Subsidiary and Guarantor Parent (Cash Flow) (Details) - USD ($) $ in Millions	6 Months Ended
Jun. 30, 2016	Jun. 30, 2015
Statement of Cash Flows
Cash flows provided by (used in) operating activities	$ (33.6)	$ 91.5
Investing Activities:
Purchases of property, plant and equipment	(145.3)	(63.3)
Payments to Acquire Businesses, Net of Cash Acquired	0.0	(0.5)
Net receipts/(payments) on intercompany activity	0.0	0.0
Asset disposals and other	1.8	0.0
Cash used in investing activities	(143.5)	(63.8)
Financing Activities:
Borrowings on long-term debt	387.5
Payments on long-term debt and capital leases	(0.6)	(6.3)
Net borrowings under credit facilities	2.5	0.0
Debt issuance costs	(10.4)	0.0
Net receipts/(payments) on intercompany activity	0.0	0.0
Dividends paid to stockholders	(17.2)	(38.6)
Acquisition of noncontrolling interests	12.2	0.0
Proceeds from (Payments for) Other Financing Activities		(7.7)
Cash provided by (used in) financing activities	349.6	(46.3)
Increase (decrease) in cash and cash equivalents	172.5	(18.6)
Reportable Legal Entities \| Parent Company
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(50.5)	(38.0)
Investing Activities:
Purchases of property, plant and equipment	(0.3)	0.0
Payments to Acquire Businesses, Net of Cash Acquired		0.0
Net receipts/(payments) on intercompany activity	0.0	0.0
Asset disposals and other	0.0	0.0
Cash used in investing activities	(0.3)	0.0
Financing Activities:
Borrowings on long-term debt	287.5
Payments on long-term debt and capital leases	(0.3)
Net borrowings under credit facilities	0.0
Debt issuance costs	(9.4)
Net receipts/(payments) on intercompany activity	(209.8)	81.3
Dividends paid to stockholders	(17.2)	(38.6)
Acquisition of noncontrolling interests	0.0
Proceeds from (Payments for) Other Financing Activities		(1.7)
Cash provided by (used in) financing activities	50.8	41.0
Increase (decrease) in cash and cash equivalents	0.0	3.0
Reportable Legal Entities \| Subsidiary
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(166.8)	(98.1)
Investing Activities:
Purchases of property, plant and equipment	(85.3)	(26.0)
Payments to Acquire Businesses, Net of Cash Acquired		0.0
Net receipts/(payments) on intercompany activity	0.0	0.0
Asset disposals and other	0.0	0.2
Cash used in investing activities	(85.3)	(25.8)
Financing Activities:
Borrowings on long-term debt	0.0
Payments on long-term debt and capital leases	(0.1)
Net borrowings under credit facilities	0.0
Debt issuance costs	0.0
Net receipts/(payments) on intercompany activity	253.3	125.1
Dividends paid to stockholders	0.0	0.0
Acquisition of noncontrolling interests	0.0
Proceeds from (Payments for) Other Financing Activities		(0.1)
Cash provided by (used in) financing activities	253.2	125.0
Increase (decrease) in cash and cash equivalents	1.1	1.1
Reportable Legal Entities \| NonGuarantor Subsidiaries
Statement of Cash Flows
Cash flows provided by (used in) operating activities	183.7	227.6
Investing Activities:
Purchases of property, plant and equipment	(59.7)	(37.3)
Payments to Acquire Businesses, Net of Cash Acquired		(0.5)
Net receipts/(payments) on intercompany activity	(43.5)	(206.4)
Asset disposals and other	1.8	(0.2)
Cash used in investing activities	(101.4)	(244.4)
Financing Activities:
Borrowings on long-term debt	100.0
Payments on long-term debt and capital leases	(0.2)
Net borrowings under credit facilities	2.5
Debt issuance costs	(1.0)
Net receipts/(payments) on intercompany activity	0.0	0.0
Dividends paid to stockholders	0.0	0.0
Acquisition of noncontrolling interests	12.2
Proceeds from (Payments for) Other Financing Activities		(5.9)
Cash provided by (used in) financing activities	89.1	(5.9)
Increase (decrease) in cash and cash equivalents	171.4	(22.7)
Eliminations
Statement of Cash Flows
Cash flows provided by (used in) operating activities	0.0	0.0
Investing Activities:
Purchases of property, plant and equipment	0.0	0.0
Payments to Acquire Businesses, Net of Cash Acquired		0.0
Net receipts/(payments) on intercompany activity	43.5	206.4
Asset disposals and other	0.0	0.0
Cash used in investing activities	43.5	206.4
Financing Activities:
Borrowings on long-term debt	0.0
Payments on long-term debt and capital leases	0.0
Net borrowings under credit facilities	0.0
Debt issuance costs	0.0
Net receipts/(payments) on intercompany activity	(43.5)	(206.4)
Dividends paid to stockholders	0.0	0.0
Acquisition of noncontrolling interests	0.0
Proceeds from (Payments for) Other Financing Activities		0.0
Cash provided by (used in) financing activities	(43.5)	(206.4)
Increase (decrease) in cash and cash equivalents	$ 0.0	$ 0.0

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Proceeds (Payments) from Intercompany Activites, Investing Activities

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Amount of increase (decrease) in cash and cash equivalents. Cash and cash equivalents are the amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Includes effect from exchange rate changes.

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Amount of cash inflow (outflow) from financing activities, including discontinued operations. Financing activity cash flows include obtaining resources from owners and providing them with a return on, and a return of, their investment; borrowing money and repaying amounts borrowed, or settling the obligation; and obtaining and paying for other resources obtained from creditors on long-term credit.

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Amount of cash inflow (outflow) from investing activities, including discontinued operations. Investing activity cash flows include making and collecting loans and acquiring and disposing of debt or equity instruments and property, plant, and equipment and other productive assets.

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Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The net cash outflow or inflow from other investing activities. This element is used when there is not a more specific and appropriate element in the taxonomy.

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The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt.

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Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

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Amount of cash outflow to a noncontrolling interest. Includes, but not limited to, reduction of noncontrolling interest ownership. Excludes dividends paid to the noncontrolling interest.

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