Summary of Significant Accounting Policies (Hedging Activities/Derivative Instruments) (Details) € in Millions, ¥ in Millions, £ in Millions, SGD in Millions, CAD in Millions, AUD in Millions, $ in Millions	12 Months Ended
	Jan. 01, 2017 USD ($)	Jan. 03, 2016 USD ($)	Jan. 01, 2017 SGD	Jan. 01, 2017 AUD	Jan. 01, 2017 EUR (€)	Jan. 01, 2017 GBP (£)	Jan. 01, 2017 JPY (¥)	Jan. 01, 2017 CAD	Jan. 01, 2017 USD ($)
Derivative [Line Items]
Expected reclassification of loss over the next 12 months									$ 0.8
Effect of derivative instruments designated as cash flow hedges
Total liability derivatives		$ (11.8)
Total asset derivatives									4.3
Designated as hedging instrument
Derivative [Line Items]
Derivative, notional amount									56.8
Fair value of foreign currency contract designated as cash flow hedge									1.1
Effect of derivative instruments designated as cash flow hedges
Total liability derivatives		(6.0)							(1.1)
Designated as hedging instrument | Accrued liabilities | Foreign Exchange Contract [Member]
Effect of derivative instruments designated as cash flow hedges
Total liability derivatives		(4.7)							(1.0)
Designated as hedging instrument | Other long-term liabilities | Foreign Exchange Contract [Member]
Effect of derivative instruments designated as cash flow hedges
Total liability derivatives		(1.3)							(0.1)
Not designated as hedging instrument
Derivative [Line Items]
Loss on derivative instruments	$ 9.6	10.6
Effect of derivative instruments designated as cash flow hedges
Total liability derivatives		(5.8)
Total asset derivatives									(5.4)
Not designated as hedging instrument | Accrued liabilities | Foreign Exchange Contract [Member]
Effect of derivative instruments designated as cash flow hedges
Total liability derivatives		(6.0)							(1.0)
Not designated as hedging instrument | Other current assets | Foreign Exchange Contract [Member]
Effect of derivative instruments designated as cash flow hedges
Total asset derivatives		0.2							6.4
Cash flow hedging
Effect of derivative instruments designated as cash flow hedges
Net gain (loss) recognized in AOCI	2.3	(11.0)
Net loss reclassified from AOCI into cost of sales	(2.8)	(9.1)
Net foreign exchange gain (loss) recognized in other income and expense	$ (0.1)	$ 0.5
Long position | Not designated as hedging instrument | Sell US dollars and buy Canadian dollars
Derivative [Line Items]
Derivative, notional amount | CAD								CAD 32.1
Long position | Not designated as hedging instrument | Sell US dollars and buy Euros
Derivative [Line Items]
Derivative, notional amount | €					€ 10.4
Long position | Not designated as hedging instrument | Sell Australian dollars and buy Great Britain pounds
Derivative [Line Items]
Derivative, notional amount | £						£ 1.4
Long position | Not designated as hedging instrument | Sell US dollars and buy Great Britain pounds
Derivative [Line Items]
Derivative, notional amount | £						41.3
Long position | Not designated as hedging instrument | Sell Euros and Buy Canadian Dollars
Derivative [Line Items]
Derivative, notional amount | CAD								CAD 15.9
Long position | Not designated as hedging instrument | Sell Japanese yen and buy US dollars
Derivative [Line Items]
Derivative, notional amount									0.9
Long position | Not designated as hedging instrument | Sell US dollars and buy Singapore dollars
Derivative [Line Items]
Derivative, notional amount | SGD			SGD 1.8
Short position | Not designated as hedging instrument | Sell US dollars and buy Canadian dollars
Derivative [Line Items]
Derivative, notional amount									24.2
Short position | Not designated as hedging instrument | Sell US dollars and buy Euros
Derivative [Line Items]
Derivative, notional amount									11.1
Short position | Not designated as hedging instrument | Sell Australian dollars and buy Great Britain pounds
Derivative [Line Items]
Derivative, notional amount | AUD				AUD 2.4
Short position | Not designated as hedging instrument | Sell US dollars and buy Great Britain pounds
Derivative [Line Items]
Derivative, notional amount						£ 600.0			52.0
Short position | Not designated as hedging instrument | Sell Euros and Buy Canadian Dollars
Derivative [Line Items]
Derivative, notional amount | €					€ 10.6
Short position | Not designated as hedging instrument | Sell Japanese yen and buy US dollars
Derivative [Line Items]
Derivative, notional amount | ¥							¥ 110.0
Short position | Not designated as hedging instrument | Sell US dollars and buy Singapore dollars
Derivative [Line Items]
Derivative, notional amount									$ 1.3