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Organization and Basis of Presentation - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 27, 2018
Jan. 10, 2017
Jan. 09, 2017
Dec. 31, 2018
Organization And Business Activities [Line Items]        
Cash consideration       $ 33.5
Laser Quantum        
Organization And Business Activities [Line Items]        
Equity method investment ownership percentage on Laser Quantum   76.00% 41.00%  
Percentage of outstanding shares acquired 24.00% 35.00%    
Cash consideration   $ 31.1    
Consideration transferred in cash and restricted stock for percentage of shares acquired $ 45.1