Second Amended and Restated Credit Agreement (Details) - Revolving Credit Facility [Member] - Fifth Third Bank [Member] - USD ($) $ in Millions		3 Months Ended
	Dec. 30, 2014	Mar. 31, 2017	Jul. 09, 2013
Letter of Credit [Member]
Line of Credit Facility [Line Items]
Borrowings outstanding		$ 0.0
Letters of Credit Outstanding		$ 7.5
Line of Credit [Member]
Line of Credit Facility [Line Items]
Maximum Borrowing Capacity	$ 700.0		$ 400.0
Maximum Borrowing Capacity under Accordion Feature	$ 800.0
Weighted Average Interest Rate		3.60%
Unused Capacity, Commitment Fee Percentage		0.50%
Holdings Note Principal amount outstanding		$ 102.0
Borrowings outstanding		392.0
Remaining Borrowing Capacity		$ 300.5
Line of Credit [Member] | London Interbank Offered Rate (LIBOR) [Member] | United States of America, Dollars
Line of Credit Facility [Line Items]
Debt Instrument, Description of Variable Rate Basis	LIBOR
Line of Credit [Member] | Canadian prime rate [Member] | Canada, Dollars
Line of Credit Facility [Line Items]
Debt Instrument, Description of Variable Rate Basis	Canadian dollar prime rate
Line of Credit [Member] | Prime Rate [Member] | United States of America, Dollars
Line of Credit Facility [Line Items]
Debt Instrument, Description of Variable Rate Basis	U.S. dollar prime rate
Line of Credit [Member] | Canadian Dealer Offered Rate (CDOR) [Member] | Canada, Dollars
Line of Credit Facility [Line Items]
Debt Instrument, Description of Variable Rate Basis	Canadian Dealer Offered Rate