Debt - Schedule of Debt (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,215.9
Unamortized debt issuance costs and discounts	(4.7)	$ (5.0)
Total debt	1,211.2	1,064.6
Less: Current maturities and short-term borrowings	(18.8)	(17.5)
Long-term debt	$ 1,192.4	1,047.1
Senior Notes [Member] \| Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Average interest rate at March 31, 2020	2.33%
Long-term debt, gross	$ 284.6	134.6
Senior Notes [Member] \| Term Loan Facility
Debt Instrument [Line Items]
Average interest rate at March 31, 2020	2.304%
Long-term debt, gross	$ 131.3	135.0
Senior Notes [Member] \| Senior Notes, Due 2023
Debt Instrument [Line Items]
Average interest rate at March 31, 2020	3.95%		3.95%
Long-term debt, gross	$ 300.0	300.0
Senior Notes [Member] \| Senior Notes, Due 2028
Debt Instrument [Line Items]
Average interest rate at March 31, 2020	4.55%		4.55%
Long-term debt, gross	$ 500.0	$ 500.0

Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer.

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-Name Accounting Standards Codification
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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.

+ References

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-Publisher FASB
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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 of unamortized debt discount (premium) and debt issuance costs.

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- Definition

Weighted average interest rate of debt outstanding.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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