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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
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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.

+ References

No definition available.

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The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)
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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
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-Paragraph 4A
-Subparagraph (b)
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Derivative Instruments (Narrative) (Details) € in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2017 USD ($)	Oct. 02, 2016 USD ($)	Oct. 01, 2017 USD ($)	Oct. 02, 2016 USD ($)	Oct. 01, 2017 EUR (€)	Oct. 01, 2017 USD ($)	Jan. 01, 2017 USD ($)
Derivative Instruments, Gain (Loss) [Line Items]
Long-term debt						$ 1,190.9	$ 611.7
Not Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Income (expense) related to derivative instruments not designated as cash flow hedges recognized in other income and expense	$ (4.8)	$ 1.3	$ 1.7	$ 0.9
Foreign Exchange Forward \| Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Expected reclassification of gain (loss) over the next 12 months						3.8
Foreign Exchange Forward \| Designated as Hedging Instrument \| Sell US Dollars and Buy Canadian Dollars
Derivative Instruments, Gain (Loss) [Line Items]
Amount of foreign currency contract						84.4
Currency Swap \| Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Expected reclassification of gain (loss) over the next 12 months						1.9
Term Loan Due Oct 2019 \| Term Loans
Derivative Instruments, Gain (Loss) [Line Items]
Long-term debt					€ 93.0	$ 100.0