Subsidiary Guarantors of 2020 Notes and 2022 Notes (Details 3) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Condensed consolidating statement of cash flows
Net cash provided by (used for) operating activities of continuing operations	$ (80.2)	$ (192.1)
Cash provided by (used for) operating activities of discontinued operations	0.0	(7.1)
Net cash provided by (used for) operating activities	(80.2)	(199.2)
Cash Flows from Investing:
Capital expenditures	(29.2)	(35.0)
Proceeds from sale of property, plant and equipment	5.1	2.1
Restricted cash	3.0	(13.2)
Intercompany investments	0.0	0.0
Net cash provided by (used for) investing activities, continuing operations		(46.1)
Cash provided by (used for) investing activities, discontinued operations		0.0
Net cash provided by (used for) investing activities	(21.1)	(46.1)
Cash Flows from Financing:
Proceeds from revolving credit facility	142.0	268.0
Payments on long-term debt	(34.8)	(583.6)
Proceeds from long-term debt	1.8	611.7
Payments on notes financing	(9.3)	(12.6)
Debt issuance costs	0.0	(4.9)
Dividends	0.0
Exercises of stock options	3.9	22.8
Intercompany financing	0.0	0.0
Net cash provided by (used for) financing activities, continuing operations	103.6	301.4
Cash used for financing activities, discontinued operations	0.0	(7.2)
Net Cash Provided by (Used in) Financing Activities	103.6	294.2
Effect of exchange rate changes on cash	(2.6)	(0.3)
Net increase (decrease) in cash and cash equivalents	(0.3)	48.6
Balance at beginning of period	68.0	54.9
Balance at end of period	67.7	103.5
Parent
Condensed consolidating statement of cash flows
Net cash provided by (used for) operating activities of continuing operations	34.8	(110.9)
Cash provided by (used for) operating activities of discontinued operations	0.0	0.0
Net cash provided by (used for) operating activities	34.8	(110.9)
Cash Flows from Investing:
Capital expenditures	(0.4)	(0.1)
Proceeds from sale of property, plant and equipment	0.0	0.0
Restricted cash	2.8	0.0
Intercompany investments	(127.4)	(100.3)
Net cash provided by (used for) investing activities, continuing operations		(100.4)
Cash provided by (used for) investing activities, discontinued operations		0.0
Net cash provided by (used for) investing activities	(125.0)	(100.4)
Cash Flows from Financing:
Proceeds from revolving credit facility	142.0	268.0
Payments on long-term debt	(11.6)	(567.8)
Proceeds from long-term debt	0.0	550.0
Payments on notes financing	$ 0.0	0.0
Debt issuance costs		(4.9)
Dividends
Exercises of stock options	$ 3.9	22.8
Intercompany financing	(41.8)	(52.4)
Net cash provided by (used for) financing activities, continuing operations	92.5	215.7
Cash used for financing activities, discontinued operations	0.0	0.0
Net Cash Provided by (Used in) Financing Activities	92.5	215.7
Effect of exchange rate changes on cash	0.0	0.0
Net increase (decrease) in cash and cash equivalents	2.3	4.4
Balance at beginning of period	1.6	1.2
Balance at end of period	3.9	5.6
Guarantor Subsidiaries
Condensed consolidating statement of cash flows
Net cash provided by (used for) operating activities of continuing operations	(38.9)	28.3
Cash provided by (used for) operating activities of discontinued operations	0.0	(0.4)
Net cash provided by (used for) operating activities	(38.9)	27.9
Cash Flows from Investing:
Capital expenditures	(16.1)	(21.7)
Proceeds from sale of property, plant and equipment	0.0	0.0
Restricted cash	0.0	0.0
Intercompany investments	60.8	(14.0)
Net cash provided by (used for) investing activities, continuing operations		(35.7)
Cash provided by (used for) investing activities, discontinued operations		0.0
Net cash provided by (used for) investing activities	44.7	(35.7)
Cash Flows from Financing:
Proceeds from revolving credit facility	0.0	0.0
Payments on long-term debt	(1.0)	(0.3)
Proceeds from long-term debt	0.0	21.2
Payments on notes financing	0.0	0.0
Debt issuance costs		0.0
Dividends	0.0
Exercises of stock options	0.0	0.0
Intercompany financing	(1.3)	(9.4)
Net cash provided by (used for) financing activities, continuing operations	(2.3)	11.5
Cash used for financing activities, discontinued operations	0.0	0.0
Net Cash Provided by (Used in) Financing Activities	(2.3)	11.5
Effect of exchange rate changes on cash	0.0	0.0
Net increase (decrease) in cash and cash equivalents	3.5	3.7
Balance at beginning of period	3.3	3.3
Balance at end of period	6.8	7.0
Non-Guarantor Subsidiaries
Condensed consolidating statement of cash flows
Net cash provided by (used for) operating activities of continuing operations	(0.2)	(109.5)
Cash provided by (used for) operating activities of discontinued operations	0.0	(6.7)
Net cash provided by (used for) operating activities	(0.2)	(116.2)
Cash Flows from Investing:
Capital expenditures	(12.7)	(13.2)
Proceeds from sale of property, plant and equipment	5.1	2.1
Restricted cash	0.2	(13.2)
Intercompany investments	186.6	179.8
Net cash provided by (used for) investing activities, continuing operations		155.5
Cash provided by (used for) investing activities, discontinued operations		0.0
Net cash provided by (used for) investing activities	179.2	155.5
Cash Flows from Financing:
Proceeds from revolving credit facility	0.0	0.0
Payments on long-term debt	(22.2)	(15.5)
Proceeds from long-term debt	1.8	40.5
Payments on notes financing	(9.3)	(12.6)
Debt issuance costs		0.0
Dividends	75.9
Exercises of stock options	0.0	0.0
Intercompany financing	(76.9)	(3.7)
Net cash provided by (used for) financing activities, continuing operations	(182.5)	8.7
Cash used for financing activities, discontinued operations	0.0	(7.2)
Net Cash Provided by (Used in) Financing Activities	(182.5)	1.5
Effect of exchange rate changes on cash	(2.6)	(0.3)
Net increase (decrease) in cash and cash equivalents	(6.1)	40.5
Balance at beginning of period	63.1	50.4
Balance at end of period	57.0	90.9
Eliminations
Condensed consolidating statement of cash flows
Net cash provided by (used for) operating activities of continuing operations	(75.9)	0.0
Cash provided by (used for) operating activities of discontinued operations	0.0	0.0
Net cash provided by (used for) operating activities	(75.9)	0.0
Cash Flows from Investing:
Capital expenditures	0.0	0.0
Proceeds from sale of property, plant and equipment	0.0	0.0
Restricted cash	0.0	0.0
Intercompany investments	(120.0)	(65.5)
Net cash provided by (used for) investing activities, continuing operations		(65.5)
Cash provided by (used for) investing activities, discontinued operations		0.0
Net cash provided by (used for) investing activities	(120.0)	(65.5)
Cash Flows from Financing:
Proceeds from revolving credit facility	0.0	0.0
Payments on long-term debt	0.0	0.0
Proceeds from long-term debt	0.0	0.0
Payments on notes financing	0.0	0.0
Debt issuance costs		0.0
Dividends	(75.9)
Exercises of stock options	0.0	0.0
Intercompany financing	120.0	65.5
Net cash provided by (used for) financing activities, continuing operations	195.9	65.5
Cash used for financing activities, discontinued operations	0.0	0.0
Net Cash Provided by (Used in) Financing Activities	195.9	65.5
Effect of exchange rate changes on cash	0.0	0.0
Net increase (decrease) in cash and cash equivalents	0.0	0.0
Balance at beginning of period	0.0	0.0
Balance at end of period	$ 0.0	$ 0.0