Financial Information for Subsidiary and Guarantor Parent (Cash Flow) (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015
Statement of Cash Flows
Cash flows provided by (used in) operating activities	$ (111.7)	$ 108.9
Investing Activities:
Purchases of property, plant and equipment	(174.9)	(99.5)
Purchases of businesses, net of cash acquired	0.0	(0.5)
Net receipts/(payments) on intercompany activity	0.0	0.0
Asset disposals and other	2.1	0.0
Cash used in investing activities	(172.8)	(100.0)
Financing Activities:
Borrowings on long-term debt	387.5
Payments on long-term debt and capital leases	(2.4)	(23.3)
Net borrowings under credit facilities	2.4	1.7
Debt issuance costs	(10.4)	0.0
Net receipts/(payments) on intercompany activity	0.0	0.0
Dividends paid to stockholders	(25.8)	(57.9)
Dividends paid to noncontrolling interests	(16.0)	0.0
Acquisition of noncontrolling interests	12.2	0.0
Proceeds from (Payments for) Other Financing Activities		0.3
Cash provided by (used in) financing activities	323.1	(80.9)
Increase (decrease) in cash and cash equivalents	38.6	(72.0)
Reportable Legal Entities | Parent Company
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(73.0)	(61.3)
Investing Activities:
Purchases of property, plant and equipment	(0.5)	(0.1)
Purchases of 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	(0.5)	(0.1)
Financing Activities:
Borrowings on long-term debt	287.5
Payments on long-term debt and capital leases	(0.5)	(0.4)
Net borrowings under credit facilities	0.0
Debt issuance costs	(9.4)
Net receipts/(payments) on intercompany activity	(176.4)	124.2
Dividends paid to stockholders	(25.8)	(57.9)
Dividends paid to noncontrolling interests	0.0
Acquisition of noncontrolling interests	0.0
Proceeds from (Payments for) Other Financing Activities		(1.3)
Cash provided by (used in) financing activities	75.4	64.6
Increase (decrease) in cash and cash equivalents	1.9	3.2
Reportable Legal Entities | Subsidiary
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(183.7)	(171.1)
Investing Activities:
Purchases of property, plant and equipment	(93.0)	(45.0)
Purchases of 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	(93.0)	(44.8)
Financing Activities:
Borrowings on long-term debt	0.0
Payments on long-term debt and capital leases	(0.2)	(0.1)
Net borrowings under credit facilities	0.0
Debt issuance costs	0.0
Net receipts/(payments) on intercompany activity	278.4	209.1
Dividends paid to stockholders	0.0	0.0
Dividends paid to noncontrolling interests	0.0
Acquisition of noncontrolling interests	0.0
Proceeds from (Payments for) Other Financing Activities		0.0
Cash provided by (used in) financing activities	278.2	209.0
Increase (decrease) in cash and cash equivalents	1.5	(6.9)
Reportable Legal Entities | NonGuarantor Subsidiaries
Statement of Cash Flows
Cash flows provided by (used in) operating activities	169.0	341.3
Investing Activities:
Purchases of property, plant and equipment	(81.4)	(54.4)
Purchases of businesses, net of cash acquired		(0.5)
Net receipts/(payments) on intercompany activity	(102.0)	(333.3)
Asset disposals and other	2.1	(0.2)
Cash used in investing activities	(181.3)	(388.4)
Financing Activities:
Borrowings on long-term debt	100.0
Payments on long-term debt and capital leases	(1.7)	(22.8)
Net borrowings under credit facilities	2.4
Debt issuance costs	(1.0)
Net receipts/(payments) on intercompany activity	0.0	0.0
Dividends paid to stockholders	(24.0)	0.0
Dividends paid to noncontrolling interests	(16.0)
Acquisition of noncontrolling interests	12.2
Proceeds from (Payments for) Other Financing Activities		1.6
Cash provided by (used in) financing activities	47.5	(21.2)
Increase (decrease) in cash and cash equivalents	35.2	(68.3)
Eliminations
Statement of Cash Flows
Cash flows provided by (used in) operating activities	(24.0)	0.0
Investing Activities:
Purchases of property, plant and equipment	0.0	0.0
Purchases of businesses, net of cash acquired		0.0
Net receipts/(payments) on intercompany activity	102.0	333.3
Asset disposals and other	0.0	0.0
Cash used in investing activities	102.0	333.3
Financing Activities:
Borrowings on long-term debt	0.0
Payments on long-term debt and capital leases	0.0	0.0
Net borrowings under credit facilities	0.0
Debt issuance costs	0.0
Net receipts/(payments) on intercompany activity	(102.0)	(333.3)
Dividends paid to stockholders	24.0	0.0
Dividends paid to noncontrolling interests	0.0
Acquisition of noncontrolling interests	0.0
Proceeds from (Payments for) Other Financing Activities		0.0
Cash provided by (used in) financing activities	(78.0)	(333.3)
Increase (decrease) in cash and cash equivalents	$ 0.0	$ 0.0