Debt (Schedule of Borrowings) (Details) - USD ($) $ in Millions	Sep. 10, 2016	Jan. 02, 2016	Sep. 12, 2015
Debt Instrument [Line Items]
Borrowings under revolving credit agreements	$ 1.2	$ 0.0	$ 0.0
Capital lease obligations	0.6	0.6	0.6
Unamortized debt issuance costs	(13.1)	(10.2)	(11.0)
Total debt	1,052.4	809.8	814.6
Term Loan A [Member] \| July Thirteenth Two Thousand Twenty [Member]
Debt Instrument [Line Items]
Long-term debt	438.7	444.4	450.0
Public Bonds [Member] \| October Fifteen Two Thousand Twenty [Member]
Debt Instrument [Line Items]
Long-term debt	375.0	375.0	375.0
Senior Notes [Member] \| September First Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Long-term debt	$ 250.0	$ 0.0	$ 0.0

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

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Amount, after accumulated amortization, of debt issuance costs classified as noncurrent. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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