XML 73 R59.htm IDEA: XBRL DOCUMENT v3.10.0.1
Derivatives and Fair Value Measurements - Financial Instruments Measured on Recurring Basis (Details) - Successor - Fair Value, Measurements, Recurring - USD ($)
$ in Millions
Sep. 30, 2018
Dec. 31, 2017
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net $ 10.2 $ 4.2
Equity securities    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 10.0  
Foreign currency option contract    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 0.2 4.2
Level 1    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 0.0 0.0
Level 1 | Equity securities    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 0.0  
Level 1 | Foreign currency option contract    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 0.0 0.0
Level 2    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 0.2 4.2
Level 2 | Equity securities    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 0.0  
Level 2 | Foreign currency option contract    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 0.2 4.2
Level 3    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 10.0 0.0
Level 3 | Equity securities    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net 10.0  
Level 3 | Foreign currency option contract    
Derivative [Line Items]    
Derivative Assets (Liabilities), at Fair Value, Net $ 0.0 $ 0.0