Quarterly report pursuant to Section 13 or 15(d)

RELATED PARTY TRANSACTIONS (Details)

v3.8.0.1
RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Dec. 31, 2017
SEACOR      
Related Party Transaction [Line Items]      
Payable due to Seacor (less than)     $ 0.1
Dart      
Related Party Transaction [Line Items]      
Amount of purchased products $ 0.7 $ 0.1  
Note receivable 2.7   2.8
Training Services | Era Training Center, LLC      
Related Party Transaction [Line Items]      
Note receivable 3.8   $ 3.7
Payments for services 0.1 0.2  
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  
General and Administrative Expense | SEACOR      
Related Party Transaction [Line Items]      
Expenses from transactions with related party $ 0.1 $ 0.1