Quarterly report pursuant to Section 13 or 15(d)

RELATED PARTY TRANSACTIONS (Details)

v3.19.2
RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Apr. 01, 2019
Mar. 31, 2019
Jun. 30, 2018
Jun. 30, 2018
Dec. 31, 2018
Related Party Transaction [Line Items]          
Proceeds from divestiture of businesses $ 38.0        
Gain on disposition of business $ 10.9        
Dart          
Related Party Transaction [Line Items]          
Amount of purchased products   $ 0.6 $ 0.6 $ 1.3  
Note receivable         $ 2.3
Training Services | Era Training Center, LLC          
Related Party Transaction [Line Items]          
Payments for services     0.1 0.1  
Era Training Center | Helicopter, Management and Other Services | Era Training Center, LLC          
Related Party Transaction [Line Items]          
Expenses from transactions with related party     $ 0.1 $ 0.1