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
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
SEACOR      
Related Party Transaction [Line Items]      
Payable due to Seacor (less than) $ 0.1   $ 0.1
Dart      
Related Party Transaction [Line Items]      
Amount of purchased products 0.1 $ 0.5  
Note receivable 3.1   3.2
Training Services | Era Training Center, LLC      
Related Party Transaction [Line Items]      
Note receivable 4.0   $ 4.0
Payments for services 0.2 0.2  
Era Training Center | Helicopter, Management and Other Services | Era Training Center, LLC      
Related Party Transaction [Line Items]      
Incurred costs under the TSA 0.1 0.1  
General and Administrative Expense | SEACOR      
Related Party Transaction [Line Items]      
Incurred costs under the TSA $ 0.1 $ 0.1