Derivative Financial Instrument Derivative Financial Instruments (Details) - USD ($)	12 Months Ended
	Dec. 27, 2016	Dec. 29, 2015	Dec. 30, 2014	Jan. 09, 2017
Derivative [Line Items]
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Accumulated Other Comprehensive Income (Loss), Net	$ (703,000)	$ (1,543,000)	$ 0
Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net	0	0	0
Derivative, Notional Amount Decrease	1,900,000
Derivative Asset, Notional Amount	242,500,000.0
Unrealized gains (losses) on cash flow hedging instruments	2,216,000	2,552,000
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	1,300,000
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	$ 906,000	0	$ 0
2014 Term Loan [Member]
Derivative [Line Items]
Derivative, Inception Date	Jul. 16, 2015
Derivative, Effective Date	Jul. 11, 2016
Derivative, Term of Contract	4 years
Derivative Asset, Notional Amount	$ 100,000,000
Derivative, Fixed Interest Rate	1.7545%
2015 Term Loan [Member]
Derivative [Line Items]
Derivative, Inception Date	Jul. 16, 2015
Derivative, Effective Date	Jul. 18, 2016
Derivative, Term of Contract	5 years
Derivative Asset, Notional Amount	$ 142,500,000
Derivative, Fixed Interest Rate	1.9665%
Subsequent Event [Member]
Derivative [Line Items]
Derivative Asset, Notional Amount				$ 200,000,000
Other Noncurrent Liabilities [Member]
Derivative [Line Items]
Unrealized gains (losses) on cash flow hedging instruments	$ 138,000	2,552,000
Accrued Liabilities [Member]
Derivative [Line Items]
Unrealized gains (losses) on cash flow hedging instruments	$ 2,078,000	$ 0