Amount of amortization expense attributable to debt issuance costs.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Weighted average interest rate of debt outstanding.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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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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The carrying value as of the balance sheet date of the current portion 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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Debt (Additional Information) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 18, 2016	Jun. 20, 2015	Jun. 18, 2016	Jun. 20, 2015	Jan. 02, 2016
Debt Instrument [Line Items]
Amortization of deferred financing costs	$ 0.7	$ 1.0	$ 1.4	$ 2.0
Maximum [Member]
Debt Instrument [Line Items]
Aggregate principal amount debt instrument	1,425.0		$ 1,425.0
Alternative Base Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			1.00%
Alternative Base Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			0.25%
Euro Currency Rate [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			2.00%
Euro Currency Rate [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Basis spread on variable rate			1.25%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Aggregate principal amount debt instrument	500.0		$ 500.0
Outstanding letters of credit	2.6	3.6	2.6	3.6	$ 3.8
Foreign Currency Subfacility [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	200.0		200.0
Swingline Subfacility [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	50.0		50.0
Letter of Credit Subfacility [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	50.0		50.0
Foreign Line of Credit [Member]
Debt Instrument [Line Items]
Revolving credit facility amount	7.0		7.0
Borrowings under revolving credit agreement	0.0	$ 0.0	0.0	$ 0.0	$ 0.0
Public Bonds [Member]
Debt Instrument [Line Items]
Aggregate principal amount debt instrument	$ 375.0		$ 375.0
Interest rate	6.125%		6.125%
July Thirteenth Two Thousand Twenty [Member] \| Term Loan A [Member]
Debt Instrument [Line Items]
Aggregate principal amount debt instrument	$ 450.0		$ 450.0
Weighted average interest rate	2.27%		2.27%