Quarterly report pursuant to Section 13 or 15(d)

ACQUISITIONS AND DISPOSITIONS (Details)

v3.5.0.2
ACQUISITIONS AND DISPOSITIONS (Details)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
May 01, 2015
USD ($)
Apr. 09, 2015
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
helicopter
Property, Plant and Equipment [Line Items]              
Cash contribution         $ 0 $ 3,165  
Purchases of property and equipment         10,712 47,260  
Capitalized interest payments       $ 1,800   5,400  
Proceeds from disposition of property and equipment         6,138 20,631  
Gains (losses) on asset dispositions, net     $ (246) 1,813 4,034 4,959  
Proceeds from sale of FBO         0 14,252  
Pre-tax gain on sale     0 $ 0 0 12,946  
Construction in Progress              
Property, Plant and Equipment [Line Items]              
Interest capitalized in property and equipment     $ 4,500   $ 4,500   $ 4,700
Other Types of Properties and Equipment              
Property, Plant and Equipment [Line Items]              
Proceeds from disposition of property and equipment           18,500  
Gains (losses) on asset dispositions, net           3,100  
Equipment Leased to Other Party              
Property, Plant and Equipment [Line Items]              
Gains (losses) on asset dispositions, net           $ 1,200  
Number of disposals from purchase option | helicopter             3
Investment in lease asset             $ 2,300
Equipment Leased to Other Party Early Buy Out              
Property, Plant and Equipment [Line Items]              
Proceeds from disposition of property and equipment             2,100
Gains (losses) on asset dispositions, net             $ 600
Number of disposals from purchase option | helicopter             2
Hauser              
Property, Plant and Equipment [Line Items]              
Cash contribution   $ 3,200          
Percentage of business acquired   75.00%          
Other intangible assets   $ 1,200          
Partner's percent of ownership interest   25.00%          
Sicher Helicopters SAS              
Property, Plant and Equipment [Line Items]              
Percentage of business acquired   100.00%          
Era FBO LLC.              
Property, Plant and Equipment [Line Items]              
Percentage of subsidiary sold 100.00%            
Proceeds from sale of FBO $ 14,300            
Pre-tax gain on sale $ 12,946