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Segment Information - Additional Information (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2019
USD ($)
Jul. 01, 2018
USD ($)
Jun. 30, 2019
USD ($)
Segment
Jul. 01, 2018
USD ($)
Segment Reporting [Abstract]        
Number of reportable segments | Segment     2  
Business Acquisition [Line Items]        
Merger and acquisition expenses $ 0.6 $ 0.0 $ 1.8 $ 0.0
FTT        
Business Acquisition [Line Items]        
Merger and acquisition expenses $ 0.1   $ 1.3