Annual report pursuant to Section 13 and 15(d)

ACQUISITIONS AND DISPOSITIONS Capital Expenditures (Details)

v3.3.1.900
ACQUISITIONS AND DISPOSITIONS Capital Expenditures (Details)
$ in Thousands
 1 Months Ended 12 Months Ended
Mar. 31, 2014
USD ($)
Dec. 31, 2015
USD ($)
helicopter
Dec. 31, 2014
USD ($)
helicopter
Dec. 31, 2013
USD ($)
helicopter
Property, Plant and Equipment [Line Items]        
Capital expenditures | $   $ 60,050 $ 106,732 $ 110,105
Proceeds from disposition of property and equipment | $   $ 25,328 $ 7,051 $ 65,151
Equipment Additions (in helicopters)   8 4 6
Equipment Dispositions (in helicopters)   20 3 15
Light helicopters - single engine        
Property, Plant and Equipment [Line Items]        
Equipment Additions (in helicopters)   1 0 0
Equipment Dispositions (in helicopters)   10 0 0
Number of helicopters disposed in sales type lease (in helicopters)   2    
Light helicopters - twin engine        
Property, Plant and Equipment [Line Items]        
Equipment Additions (in helicopters)   3 0 2
Previously Leased-in (in helicopters)       2
Equipment Dispositions (in helicopters)   3 0 4
Medium helicopters        
Property, Plant and Equipment [Line Items]        
Proceeds from disposition of property and equipment | $ $ 3,000      
Equipment Additions (in helicopters)   0 4 4
Previously Leased-in (in helicopters)       1
Equipment Dispositions (in helicopters)   7 3 10
Heavy helicopters        
Property, Plant and Equipment [Line Items]        
Equipment Additions (in helicopters)   4 0 0
Equipment Dispositions (in helicopters)   0 0 1
Hauser | Light helicopters - single engine        
Property, Plant and Equipment [Line Items]        
Equipment Additions (in helicopters)   1    
Hauser | Light helicopters - twin engine        
Property, Plant and Equipment [Line Items]        
Equipment Additions (in helicopters)   3