Commitments and Contingencies (Foreign Currency Contracts) (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017 USD ($)	Apr. 01, 2016 USD ($)	Jan. 01, 2016 USD ($)
Foreign Currency Cash Flow Hedges [Abstract]
Decrease in sales	$ 24	$ 0
Increase in cost of sales	1,062	619
Ineffective portion of change in fair value	0	$ 0
Foreign Currency Cash Flow Hedge [Line Items]
Payments for termination of foreign currency contract			$ 2,400
Foreign currency cash flow hedge gain (loss) to be reclassified	300
Terminated FX Contract [Member]
Foreign Currency Cash Flow Hedge [Line Items]
Foreign currency cash flow hedge gain (loss) to be reclassified			$ (1,600)
FX Contract 3 [Member]
Foreign Currency Cash Flow Hedge [Line Items]
Aggregate Notional Amount	$ 18,490
Start Date	Jan. 01, 2017
End Date	Dec. 29, 2017
FX Contract 4 [Member]
Foreign Currency Cash Flow Hedge [Line Items]
Aggregate Notional Amount	$ 19,344
Start Date	Feb. 25, 2017
End Date	Dec. 29, 2017
Accrued Expenses [Member] | FX Contract 3 [Member]
Foreign Currency Cash Flow Hedge [Line Items]
Foreign Currency Cash Flow Hedge Asset at Fair Value	$ 310
Accrued Expenses [Member] | FX Contract 4 [Member]
Foreign Currency Cash Flow Hedge [Line Items]
Foreign Currency Cash Flow Hedge Asset at Fair Value	$ 22
Peso [Member] | FX Contract 3 [Member]
Foreign Currency Cash Flow Hedge [Line Items]
$/Foreign Currency	0.0514
Euro [Member] | FX Contract 4 [Member]
Foreign Currency Cash Flow Hedge [Line Items]
$/Foreign Currency	1.0747