XML 73 R63.htm IDEA: XBRL DOCUMENT v3.5.0.2
STOCK-BASED COMPENSATION - Stock-based compensation expense (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 24, 2016
Jun. 26, 2015
Jun. 24, 2016
Jun. 26, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]        
Total stock-based compensation expense $ 2.9 $ 2.4 $ 6.0 $ 5.8