Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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Fixed interest rate related to the interest rate derivative.

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Estimated period for the anticipated transfer of gain (loss), net, from accumulated other comprehensive income into earnings, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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Maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions.

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Represents the percentage of projected intercompany purchase transactions hedged for the next twelve months by forward exchange contracts.

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Financial Instruments and Derivative Instruments - Interest Rate Swaps and Non-Designated Cash Flow Hedge (Details) $ in Millions		3 Months Ended		12 Months Ended
	Feb. 12, 2016 USD ($) item	Mar. 31, 2019 USD ($)	Apr. 01, 2018 USD ($)	Dec. 31, 2018
Derivative instruments
Percentage of projected intercompany purchases hedged by forward exchange contracts		60.00%
Period of projected intercompany purchase transactions		12 months		12 months
Minimum
Derivative instruments
Percentage of projected intercompany purchases hedged by forward exchange contracts				70.00%
Maximum
Derivative instruments
Percentage of projected intercompany purchases hedged by forward exchange contracts				80.00%
Term loan facility \| Term Loan due February 2021
Interest Rate Swaps
Face amount	$ 300.0
Amount drawn		$ 300.0
Senior unsecured revolving credit facility
Interest Rate Swaps
Amount drawn		50.0
Borrowing capacity	$ 500.0
Forward exchange contracts \| Designated
Derivative instruments
Fair value of derivative asset		0.2
Amount of Gain or (Loss) Recognized in Income on Derivatives
Amount expected to be reclassified		$ 0.3
Period of time for expected reclassification		12 months
Canadian Dollar to US Dollar Contracts
Interest Rate Swaps
Derivative notional amount		$ 13.5
US Dollar to Chinese Yuan Contracts
Interest Rate Swaps
Derivative notional amount		13.2
Interest Rate Swaps \| Designated \| Cash Flow Hedging
Interest Rate Swaps
Number of derivative contracts entered \| item	2
Derivative fixed interest rate	1.31375%
Derivative notional amount	$ 225.0
Gain (loss) recognized in Accumulated Other Comprehensive Loss, effective portion		$ (1.3)	$ 1.9
Interest Rate Swaps \| Designated \| Cash Flow Hedging \| LIBOR
Interest Rate Swaps
Derivative, floor interest rate	0.00%