XML 54 R42.htm IDEA: XBRL DOCUMENT v3.10.0.1
Acquisitions (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 13, 2018
Jun. 29, 2018
Jun. 29, 2018
Dec. 31, 2017
Business Acquisition [Line Items]        
Goodwill     $ 1,077.5  
IDT        
Business Acquisition [Line Items]        
Goodwill     1,077.5  
IDT | Operating segments | Life Sciences        
Business Acquisition [Line Items]        
Business combination, consideration transferred $ 2,100.0      
Revenue reported by acquired entity for last annual period 260.0      
Goodwill $ 1,100.0      
Business acquisition, transaction costs   $ 15.0 15.0 $ 15.0
Fair Value Adjustment to Inventory [Member] | IDT        
Business Acquisition [Line Items]        
Fair value adjustments to inventory   $ 1.0 $ 1.0