Annual report pursuant to Section 13 and 15(d)

VARIABLE INTEREST ENTITIES AND EQUITY INVESTMENTS AND ADVANCES Lake Palma Narrative (Details)

v3.3.1.900
VARIABLE INTEREST ENTITIES AND EQUITY INVESTMENTS AND ADVANCES Lake Palma Narrative (Details)
$ in Thousands
12 Months Ended
Jul. 24, 2014
USD ($)
Dec. 31, 2015
USD ($)
helicopter
Dec. 31, 2014
USD ($)
Dec. 31, 2013
USD ($)
Schedule of Equity Method Investments [Line Items]        
Gain on consolidation of subsidiary   $ 0 $ 1,518 $ 0
Lake Palma        
Schedule of Equity Method Investments [Line Items]        
Number of helicopters operated | helicopter   7    
Lake Palma        
Schedule of Equity Method Investments [Line Items]        
Ownership percentage 51.00%      
Sales price of equity method investment $ 9,300      
Gain on consolidation of subsidiary 1,500      
Debt obligations $ 2,900