Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended			6 Months Ended		12 Months Ended
	Apr. 10, 2015	Mar. 05, 2015	Jun. 28, 2015	Mar. 29, 2015	Jun. 29, 2014	Jun. 28, 2015	Jun. 29, 2014	Dec. 28, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax (benefit) expense			$ 3,387		$ 1,777	$ 5,272	$ 2,997
Accrued customer incentives and rebates			$ 13,000			$ 13,000		$ 12,500
Cash dividend declared (USD per share)		$ 0.5	$ 0		$ 0	$ 0.50	$ 0
Dividend paid	$ 21,000					$ 20,980	$ 0
Net (loss) earnings			$ (9,492)		$ 9,854	(12,051)	$ 9,725	$ 10,953
Stock Compensation Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend payable	$ 400
Restatement Adjustments
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax (benefit) expense			4,085			5,899
Net (loss) earnings			$ (4,085)			$ (5,899)
Restatement Adjustments | Income Tax Adjustment
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Income tax (benefit) expense				$ (1,000)
Net (loss) earnings				$ 1,000