Debt and Financing Arrangements (Details) (USD $)			3 Months Ended	9 Months Ended	0 Months Ended		9 Months Ended	0 Months Ended										3 Months Ended		9 Months Ended
	Sep. 30, 2014	Oct. 01, 2014 Subsequent Event [Member] Interest Rate Swap [Member]	Sep. 30, 2014 Term Loan and Revolving Facility [Member]	Sep. 30, 2014 Term Loan and Revolving Facility [Member]	Sep. 27, 2013 Base Rate [Member]	Sep. 27, 2013 LIBOR Rate [Member]	Sep. 30, 2014 LIBOR Rate [Member]	Sep. 27, 2013 Minimum [Member] Base Rate [Member]	Sep. 27, 2013 Minimum [Member] LIBOR Rate [Member]	Sep. 27, 2013 Maximum [Member] Base Rate [Member]	Sep. 27, 2013 Maximum [Member] LIBOR Rate [Member]	Sep. 30, 2014 Credit Agreement [Member]	Sep. 27, 2013 Credit Agreement [Member]	Sep. 27, 2013 Revolving Facility [Member]	Sep. 27, 2013 Term Loan [Member]	Sep. 27, 2013 Swing Loans [Member]	Sep. 27, 2013 Letters of Credit [Member]	Sep. 30, 2014 Other, Net [Member]	Sep. 30, 2013 Other, Net [Member]	Sep. 30, 2014 Other, Net [Member]	Sep. 30, 2013 Other, Net [Member]
Debt Instrument [Line Items]
Principal amount														$ 150,000,000	$ 150,000,000
Additional principal amount available													75,000,000			20,000,000	20,000,000
Partial repayment of debt			1,900,000	5,600,000
Available borrowing capacity												25,000,000
Description of variable rate basis					base	LIBOR
Basis spread on variable rate					0.50%	1.00%	1.16%	0.00%	1.00%	0.75%	1.75%
Payments of financing costs																		900,000	0	2,700,000	0
Effect of 1% in increase on borrowing rate	2,700,000
Amount of hedged item		150,000,000
Notional amount of derivative		$ 150,000,000
Fixed interest rate of derivative		1.89%