Consolidated Statements Of Operations (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Oct. 01, 2016
Oct. 03, 2015
Oct. 01, 2016
Oct. 03, 2015
Income Statement [Abstract]        
Software development, amortization $ 35,552 $ 29,743 $ 102,429 $ 88,450