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Debt (Details) - USD ($) $ in Millions		3 Months Ended
	Feb. 12, 2016	Apr. 03, 2016	Apr. 28, 2016	Dec. 31, 2015
Credit Agreement
Borrowings outstanding		$ 600.9		$ 576.2
5.85% Senior notes due 2016
Credit Agreement
Interest rate (as a percent)		5.85%
Credit Agreement
Credit Agreement
Term of debt	5 years
Sublimit on letters of credit	$ 100.0
Unused and available credit under the credit agreement		$ 475.1
Stand-by letters of credit outstanding		$ 24.9
Eurocurrency rate loans | LIBOR
Credit Agreement
Variable interest rate basis		LIBOR
Eurocurrency rate loans | LIBOR | Minimum
Credit Agreement
Interest rate added to base rate (as a percent)		0.975%
Eurocurrency rate loans | LIBOR | Maximum
Credit Agreement
Interest rate added to base rate (as a percent)		1.45%
Base rate loans and swing line loans | LIBOR
Credit Agreement
Interest rate added to base rate (as a percent)		1.00%
Variable interest rate basis		LIBOR
Base rate loans and swing line loans | LIBOR | Minimum
Credit Agreement
Interest rate added to base rate (as a percent)		0.00%
Base rate loans and swing line loans | LIBOR | Maximum
Credit Agreement
Interest rate added to base rate (as a percent)		0.45%
Base rate loans and swing line loans | Federal funds
Credit Agreement
Interest rate added to base rate (as a percent)		0.50%
Variable interest rate basis		federal funds rate
Base rate loans and swing line loans | Prime Rate
Credit Agreement
Variable interest rate basis		prime rate
Senior unsecured revolving credit facility
Credit Agreement
Multi-currency borrowing capacity	$ 500.0
Term of debt	5 years
Senior unsecured revolving credit facility | Subsequent event
Credit Agreement
Unused and available credit under the credit agreement			$ 245.0
Term loan facility
Credit Agreement
Term of debt	5 years
First year (as a percent)	0.00%
Second and third years (as a percent)	7.50%
Fourth and fifth years (as a percent)	10.00%
Borrowings outstanding		$ 300.0
Face amount	$ 300.0
Term loan facility | LIBOR
Credit Agreement
Variable interest rate basis	British Bankers Association LIBOR
Term loan facility | LIBOR | Minimum
Credit Agreement
Interest rate added to base rate (as a percent)	1.125%
Term loan facility | LIBOR | Maximum
Credit Agreement
Interest rate added to base rate (as a percent)	1.75%

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

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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The percentage points added to the specified reference rate to compute the variable rate on the debt instrument, in addition to the percentage points added regardless of specified reference rate.

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