XML 98 R86.htm IDEA: XBRL DOCUMENT v3.10.0.1
Share-Based Compensation (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
May 29, 2018
Stock-based compensation expense [Line Items]          
Allocated share-based compensation expense $ 42.6 $ 23.6 $ 87.9 $ 46.0  
Income tax benefit 9.0 7.8 19.1 15.3  
Net income effect of share-based compensation 33.6 15.8 68.8 30.7  
Share-based compensation expense previously capitalized 3.9   7.5    
Inventory          
Stock-based compensation expense [Line Items]          
Income tax benefit 4.4 3.1 7.9 5.8  
Share-based compensation expense previously capitalized   3.7   7.1  
Cost of sales          
Stock-based compensation expense [Line Items]          
Allocated share-based compensation expense 3.9 3.7 7.5 7.1  
Research and development          
Stock-based compensation expense [Line Items]          
Allocated share-based compensation expense 19.7 10.6 33.8 20.9  
Selling, general and administrative          
Stock-based compensation expense [Line Items]          
Allocated share-based compensation expense 17.8 9.3 29.5 18.0  
Special charges and other, net          
Stock-based compensation expense [Line Items]          
Allocated share-based compensation expense 1.2 0.0 17.1 0.0  
New Accounting Pronouncement, Early Adoption, Effect | Accounting Standards Update 2016-09, Excess Tax Benefit Component          
Stock-based compensation expense [Line Items]          
Allocated share-based compensation expense $ 4.0 $ 8.2 9.0 $ 14.1  
Restricted Stock Units (RSUs) | Microsemi Corporation          
Stock-based compensation expense [Line Items]          
Allocated share-based compensation expense     40.2    
Consideration transferred, equity interests issued     175.4    
Compensation cost     53.9    
Compensation cost not yet recognized         $ 121.5
Accelerated compensation cost     17.1    
Restricted Stock Units (RSUs) | Microsemi Corporation | Inventory          
Stock-based compensation expense [Line Items]          
Income tax benefit     $ 1.6