Summary of Significant Accounting Policies Intangible Assets and Goodwill (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Dec. 27, 2014	Jun. 27, 2015	Jun. 28, 2014	Jun. 29, 2013
Goodwill [Line Items]
Research and Development in Process		$ 8,900	$ 2,580	$ 2,800
Goodwill, Impairment Loss	$ 84,100	$ 84,110	$ 0	$ 0