XML 55 R42.htm IDEA: XBRL DOCUMENT v3.10.0.1
Planned Separation of Arlo (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended 10 Months Ended
Aug. 07, 2018
Aug. 07, 2018
Sep. 30, 2018
Oct. 01, 2017
Sep. 30, 2018
Oct. 01, 2017
Sep. 30, 2018
Aug. 02, 2018
Business Acquisition [Line Items]                
Proceeds from Arlo initial public offering, net of offering costs         $ 170,246 $ 0    
Separation expense     $ 7,054 $ 0 $ 25,822 $ 0 $ 27,300  
Arlo                
Business Acquisition [Line Items]                
Proceeds from Arlo initial public offering, net of offering costs   $ 170,200            
Shares outstanding (in shares) 74,247,000 74,247,000            
Arlo | IPO                
Business Acquisition [Line Items]                
Per share price of stock sold (USD per share)               $ 16.00
Arlo | Underwriter option                
Business Acquisition [Line Items]                
Number of shares issued in transaction (in shares) 1,532,250              
Arlo                
Business Acquisition [Line Items]                
Shares outstanding (in shares) 62,500,000 62,500,000            
Ownership percentage by parent 84.20% 84.20% 84.20%   84.20%   84.20%