Long-Term Debt and Financing Liabilities (Other Long-Term Debt) (Details) $ in Thousands, € in Millions	Dec. 27, 2015 USD ($)	Dec. 27, 2015 EUR (€)	Dec. 28, 2014 USD ($)
Debt Instrument [Line Items]
Other capital leases with maturities through 2020	$ 601		$ 249
Debt
2016	0
2017	0
2018	70,000
2019	0
2020	0
Thereafter	0
Total Debt	70,000
Capital Leases
2016	239
2017	198
2018	145
2019	15
2020	4
Thereafter	0
Present value of minimum lease payments	601
Total Debt
2016	239
2017	198
2018	70,145
2019	15
2020	4
Thereafter	0
Total long-term debt	70,601		$ 65,332
SPAIN
Debt Instrument [Line Items]
Other capital leases with maturities through 2020	1,200	€ 0.9
Capital Lease Obligations, Current	200	0.2
Capital Lease Obligations, Non-current	$ 1,000	€ 0.7