Cash, Cash Equivalents and Investments (Details 1) - USD ($) $ in Thousands	Jul. 04, 2015	Jan. 03, 2015	Jun. 28, 2014	Dec. 28, 2013
Classified as cash and cash equivalents
Cash and interest bearing deposits	$ 232,408	$ 203,665
Money market funds	415,443	728,496
Total cash and cash equivalents	$ 647,851	$ 932,161	$ 557,416	$ 536,260