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INVESTMENTS, AT EQUITY, ADVANCES TO 50% OR LESS OWNED COMPANIES Dart Narrative (Details) (USD $)
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12 Months Ended | 12 Months Ended | 0 Months Ended | ||||||
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Dec. 31, 2013
Dart Helicopter Services LLC and Dart Holding Company Ltd. [Member]
Products Purchased [Member]
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Dec. 31, 2012
Dart Helicopter Services LLC and Dart Holding Company Ltd. [Member]
Products Purchased [Member]
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Dec. 31, 2011
Dart Helicopter Services LLC and Dart Holding Company Ltd. [Member]
Products Purchased [Member]
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Dec. 31, 2013
Dart Helicopter Services LLC [Member]
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Feb. 28, 2011
Dart Helicopter Services LLC [Member]
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Dec. 31, 2009
Dart Helicopter Services LLC [Member]
Equity Method Investee [Member]
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Dec. 31, 2013
Dart Helicopter Services LLC [Member]
Era DHS LLC [Member]
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Jul. 31, 2011
Dart Holding Company Ltd. [Member]
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Jul. 31, 2011
Dart Holding Company Ltd. [Member]
Equity Method Investee [Member]
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| Schedule of Equity Method Investments [Line Items] | |||||||||
| Ownership | 50.00% | 49.00% | 50.00% | ||||||
| Notes receivable to related party | $ 300,000 | $ 5,100,000 | |||||||
| Notes receivable interest rate | 5.00% | 4.00% | |||||||
| Additional investment | 5,000,000 | ||||||||
| Expenses from transactions with related party | $ 2,900,000 | $ 1,700,000 | $ 2,300,000 | ||||||
| X | ||||||||||
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- Definition
Equity Method Investments, Additional Investment No definition available.
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| X | ||||||||||
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- Definition
The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Identify the stated interest rate per the agreement, for example, leasing and debt arrangements between related parties. No definition available.
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| X | ||||||||||
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- Details
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