Quarterly report pursuant to Section 13 or 15(d)

RELATED PARTY TRANSACTIONS (Details)

v3.7.0.1
RELATED PARTY TRANSACTIONS (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
SEACOR          
Related Party Transaction [Line Items]          
Payable due to Seacor (less than) $ 0.1   $ 0.1   $ 0.1
Dart          
Related Party Transaction [Line Items]          
Amount of purchased products 0.2 $ 0.6 0.3 $ 1.1  
Note receivable 3.0   3.0   3.2
Training Services | Era Training Center, LLC          
Related Party Transaction [Line Items]          
Note receivable 3.9   3.9   $ 4.0
Payments for services 0.1 0.2 0.4 0.3  
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 0.1 0.2  
Aeroleo          
Related Party Transaction [Line Items]          
Contribution of capital from joint venture partner       6.3  
General and Administrative Expense | SEACOR          
Related Party Transaction [Line Items]          
Expenses from transactions with related party $ 0.1 $ 0.1 $ 0.2 $ 0.2