Financial Information for Subsidiary and Guarantor Parent (Cash Flow) (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016
Statement of Cash Flows
Cash flows provided by (used in) operating activities	$ (53.8)	$ (111.7)
Investing Activities:
Purchases of property, plant and equipment	(85.3)	(174.9)
Net receipts/(payments) on intercompany activity	0.0	0.0
Asset disposals and other	3.2	2.1
Cash used in investing activities	(82.1)	(172.8)
Financing Activities:
Borrowings on long-term debt	8.5	387.5
Payments on long-term debt and capital leases	(1.9)	(2.4)
Net borrowings under credit facilities	28.0	2.4
Debt issuance costs	(0.8)	(10.4)
Net receipts/(payments) on intercompany activity	0.0	0.0
Dividends paid to stockholders	0.0	(25.8)
Dividends paid to noncontrolling interests	0.0	(16.0)
Acquisition of noncontrolling interests	0.0	(12.2)
Sale to noncontrolling Interests	2.2	0.0
Shares repurchased for income tax withholding on share-based compensation and other	(4.8)	0.0
Cash provided by financing activities	31.2	323.1
Increase (decrease) in cash and cash equivalents	(104.7)	38.6
Reportable Legal Entities \| Parent Company
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(84.2)	(73.0)
Investing Activities:
Purchases of property, plant and equipment	(0.5)	(0.5)
Net receipts/(payments) on intercompany activity	0.0	0.0
Asset disposals and other	0.0	0.0
Cash used in investing activities	(0.5)	(0.5)
Financing Activities:
Borrowings on long-term debt	0.0	287.5
Payments on long-term debt and capital leases	(0.3)	(0.5)
Net borrowings under credit facilities	0.0	0.0
Debt issuance costs	0.0	(9.4)
Net receipts/(payments) on intercompany activity	89.6	(176.4)
Dividends paid to stockholders		(25.8)
Dividends paid to noncontrolling interests		0.0
Acquisition of noncontrolling interests		0.0
Sale to noncontrolling Interests	0.0
Shares repurchased for income tax withholding on share-based compensation and other	(4.8)
Cash provided by financing activities	84.5	75.4
Increase (decrease) in cash and cash equivalents	(0.2)	1.9
Reportable Legal Entities \| Subsidiary
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(83.1)	(183.7)
Investing Activities:
Purchases of property, plant and equipment	(27.4)	(93.0)
Net receipts/(payments) on intercompany activity	0.0	0.0
Asset disposals and other	0.1	0.0
Cash used in investing activities	(27.3)	(93.0)
Financing Activities:
Borrowings on long-term debt	0.0	0.0
Payments on long-term debt and capital leases	(0.2)	(0.2)
Net borrowings under credit facilities	0.0	0.0
Debt issuance costs	0.0	0.0
Net receipts/(payments) on intercompany activity	115.5	278.4
Dividends paid to stockholders		0.0
Dividends paid to noncontrolling interests		0.0
Acquisition of noncontrolling interests		0.0
Sale to noncontrolling Interests	0.0
Shares repurchased for income tax withholding on share-based compensation and other	0.0
Cash provided by financing activities	115.3	278.2
Increase (decrease) in cash and cash equivalents	4.9	1.5
Reportable Legal Entities \| NonGuarantor Subsidiaries
Statement of Cash Flows
Cash flows provided by (used in) operating activities	113.5	169.0
Investing Activities:
Purchases of property, plant and equipment	(57.4)	(81.4)
Net receipts/(payments) on intercompany activity	(205.1)	(102.0)
Asset disposals and other	3.1	2.1
Cash used in investing activities	(259.4)	(181.3)
Financing Activities:
Borrowings on long-term debt	8.5	100.0
Payments on long-term debt and capital leases	(1.4)	(1.7)
Net borrowings under credit facilities	28.0	2.4
Debt issuance costs	(0.8)	(1.0)
Net receipts/(payments) on intercompany activity	0.0	0.0
Dividends paid to stockholders		(24.0)
Dividends paid to noncontrolling interests		(16.0)
Acquisition of noncontrolling interests		(12.2)
Sale to noncontrolling Interests	2.2
Shares repurchased for income tax withholding on share-based compensation and other	0.0
Cash provided by financing activities	36.5	47.5
Increase (decrease) in cash and cash equivalents	(109.4)	35.2
Eliminations
Statement of Cash Flows
Cash flows provided by (used in) operating activities	0.0	(24.0)
Investing Activities:
Purchases of property, plant and equipment	0.0	0.0
Net receipts/(payments) on intercompany activity	205.1	102.0
Asset disposals and other	0.0	0.0
Cash used in investing activities	205.1	102.0
Financing Activities:
Borrowings on long-term debt	0.0	0.0
Payments on long-term debt and capital leases	0.0	0.0
Net borrowings under credit facilities	0.0	0.0
Debt issuance costs	0.0	0.0
Net receipts/(payments) on intercompany activity	(205.1)	(102.0)
Dividends paid to stockholders		24.0
Dividends paid to noncontrolling interests		0.0
Acquisition of noncontrolling interests		0.0
Sale to noncontrolling Interests	0.0
Shares repurchased for income tax withholding on share-based compensation and other	0.0
Cash provided by financing activities	(205.1)	(78.0)
Increase (decrease) in cash and cash equivalents	$ 0.0	$ 0.0

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