XML 65 R49.htm IDEA: XBRL DOCUMENT v3.8.0.1
Summary of Significant Accounting Policies - Other (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Jan. 02, 2016
Summary of Significant Accounting Policies (Additional Textual) [Abstract]      
Reserve for inventory inventory in excess of 12-month demand    
Additions to capitalized computer software for internal use $ 2.2 $ 3.5 $ 2.0
Depreciation and amortization, property plant and equipment $ 52.9 52.7 48.7
Period for revenue recognition for perpetual licenses maintenance 12 months    
Maximum period for collection of receivables 5 years    
Percentage of likelihood of tax benefit being realized upon effective settlement of audit 50.00%    
Advertising expense $ 7.4 $ 8.4 $ 7.9