Supplemental Guarantor Condensed Financial Information (Parent Company Long-Term Financing Arrangements) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015	Dec. 15, 2009
Current portion of long-term debt	$ 96.1	$ 168.1
Long-term debt	896.9	911.6
Debt maturities Q3 2017	96.1
Debt maturities Q3 2018	112.5
Debt maturities Q3 2019	10.8
Debt maturities Q3 2020	0.8
Debt maturities Q3 2021	1.6
North America [Member]
Debt discount		(257.8)
Debt issuance costs	(11.0)	(12.1)
North America [Member] \| 5.75% Senior Notes due 2022 [Member]
Face value	600.0	600.0
Debt issuance costs	(7.3)	(8.2)
North America [Member] \| Subordinated Convertible Notes Due 2029 [Member]
Face value	429.5	429.5	$ 429.5
Debt discount	(256.2)	(257.8)
Debt issuance costs	(3.7)	(3.9)
Parent [Member]
Current portion of long-term debt	0.0	0.0
Long-term debt	771.3	768.6
Parent [Member] \| North America [Member]
Face value	771.3	768.6
Debt discount	(256.2)	(257.8)
Debt issuance costs	(11.0)	(12.1)
Current portion of long-term debt	0.0	0.0
Long-term debt	771.3	768.6
Debt maturities Q3 2017	0.0
Debt maturities Q3 2018	0.0
Debt maturities Q3 2019	0.0
Debt maturities Q3 2020	0.0
Debt maturities Q3 2021	0.0
Parent [Member] \| North America [Member] \| 5.75% Senior Notes due 2022 [Member]
Face value	600.0	600.0
Parent [Member] \| North America [Member] \| Subordinated Convertible Notes Due 2029 [Member]
Face value	429.5	429.5
Parent [Member] \| North America [Member] \| Other Debt [Member]
Face value	$ 9.0	$ 9.0

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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