Fair Value of Assets and Liabilities - Summary of Liabilities Recorded at Carrying Value (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Current notes payable - Fair value	$ 71.9	$ 106.9
Notes payable - Carrying value	71.9	106.9
Other Long-term Debt, Noncurrent	1.2	0.8
Other Long Term Debt Fair Value	1.2	0.8
Debt Issuance Costs, Noncurrent, Net	52.8	61.7
Debt Issuance Costs Noncurrent Net Fair Value	(52.8)	(61.7)
Long-term debt - Fair Value	1,868.2	1,717.4
Long-term debt	1,834.5	1,691.4
Total debt instruments - Fair value	1,940.1	1,824.3
Total debt instruments - Carrying value	1,906.4	1,798.3
Line of Credit Fair Value	120.0	0.0
Revolving credit facility	120.0	0.0
December 2015 Term Loan [Member]
Debt Instrument [Line Items]
Term Loan Facility	184.0	201.3
Unsecured Long Term Debt Noncurrent Fair Value	184.0	201.3
Delayed Draw Term Loan A Facility [Member]
Debt Instrument [Line Items]
Term Loan Facility	231.3	0.0
Unsecured Long Term Debt Noncurrent Fair Value	231.3	0.0
Term Loan B USD [Member]
Debt Instrument [Line Items]
Term Loan Facility	467.9	787.5
Unsecured Long Term Debt Noncurrent Fair Value	467.9	787.5
Term Loan B EUR [Member]
Debt Instrument [Line Items]
Term Loan Facility	482.9	363.5
Unsecured Long Term Debt Noncurrent Fair Value	482.9	363.5
Senior Notes Due 2024 [Member]
Debt Instrument [Line Items]
Senior Notes	400.0	400.0
Senior Notes Noncurrent Fair Value	$ 433.7	$ 426.0

Debt Issuance Costs Noncurrent Net Fair Value

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- Definition

Line of Credit Fair Value

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- Definition

Other Long Term Debt Fair Value

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- Definition

Senior Notes Noncurrent Fair Value

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- Definition

Unsecured Long Term Debt Noncurrent Fair Value

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- Definition

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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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

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- Definition

The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Sum of the carrying values as of the balance sheet date of the portions of long-term notes payable due within one year or the operating cycle if longer.

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Fair value portion of notes payable.

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Amount of long-term debt classified as other, payable after one year or the operating cycle, if longer.

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Carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion. Senior note holders are paid off in full before any payments are made to junior note holders.

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Carrying value as of the balance sheet date of uncollateralized debt obligation (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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