Favorable and Unfavorable Leases (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Sep. 27, 2015	Oct. 02, 2016	Sep. 27, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization expense			$ 4,401
Leases, Acquired-in-Place, Market Adjustment [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 200	$ 200	600	$ 600
Amortization Expense, Expected Full Year	800		800
Next Fiscal Year	700		700
Second Fiscal Year	700		700
Third Fiscal Year	600		600
Fourth Fiscal Year	600		600
Fifth Fiscal Year	500		500
2016 Acquisitions [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Business combination, acquired favorable leases	73		73
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Unfavorable Leases	$ 1,036		$ 1,036