Annual report pursuant to Section 13 and 15(d)

NATURE OF OPERATIONS AND ACCOUNTING POLICIES Deferred Gains (Details)

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NATURE OF OPERATIONS AND ACCOUNTING POLICIES Deferred Gains (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Era do Brazil [Member]
helicopter
Dec. 31, 2011
Finance Company [Member]
helicopter
Dec. 31, 2011
Lake Palma [Member]
helicopter
Dec. 31, 2013
Era do Brazil and Lake Palma [Member]
Dec. 31, 2012
Era do Brazil and Lake Palma [Member]
Dec. 31, 2011
Era do Brazil and Lake Palma [Member]
Schedule of Equity Method Investments [Line Items]            
Number of Helicopters Sold 1 2 4      
Deferred Gain on Sale of Property       $ 0 $ 1.6 $ 2.4