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BALANCE SHEET DETAILS - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Jul. 01, 2017
Dec. 30, 2017
Balance Sheet Details [Abstract]    
Assets under capital lease $ 3.7 $ 3.4
Capitalized computer software costs $ 14.3  
Expected amortization of intangible assets in fiscal year 2018   0.3
Expected amortization of intangible assets in fiscal year 2019   $ 0.1