Financial Instruments and Fair Value Measurement - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) derivate	Dec. 31, 2018 USD ($) investment	Dec. 31, 2017 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments carried at fair value	$ 69.9	$ 65.5
Purchase of trading securities held-for-investment	3.2	2.7
Proceeds from the sale of trading securities held-for-investment	$ 1.3	1.5
Number of foreign exchange contracts held (foreign_exchange_contract) | derivate	36
Hedge ineffectiveness with respect to forward exchange cash flow hedges	$ 0.0	0.0	$ 0.0
Long-term debt, current portion	34.4
Long-term debt, net of unamortized discount and debt issuance costs including short-term portion of long term debt	1,540.4
Long-term debt, net of unamortized discount and debt issuance costs	1,506.0	1,737.1
Long-term debt, fair value	1,592.2	$ 1,688.1
Minimum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, notional amount, range	0.5
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative, notional amount, range	$ 1.6
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of available-for-sale securities (investment) | investment		1
Top Ten Customers | Net Sales | Customer Concentration Risk
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Concentration risk, percentage	41.00%