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Commitments And Contingencies (Narrative) (Details) (USD $)
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3 Months Ended | 1 Months Ended | 16 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2013
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Jun. 30, 2013
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Dec. 31, 2012
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Sep. 30, 2012
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Jun. 30, 2012
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Dec. 31, 2011
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Sep. 30, 2013
AW189 Heavy Helicopters [Member]
helicopter
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Sep. 30, 2013
AW139 Medium Helicopter [Member]
helicopter
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Sep. 30, 2013
AW169 Light Twin Helicopters [Member]
helicopter
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Mar. 31, 2012
Aeroleo [Member]
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Jun. 30, 2013
Aeroleo [Member]
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Sep. 30, 2013
Aeroleo [Member]
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Dec. 31, 2012
Aeroleo [Member]
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Nov. 12, 2013
Subsequent Event [Member]
AW139 Medium Helicopter [Member]
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| Purchase Commitment, Excluding Long-term Commitment [Line Items] | ||||||||||||||
| Total unfunded capital commitments | $ 239,700,000 | $ 13,800,000 | ||||||||||||
| Purchase commitments payable during the period | 28,000,000 | |||||||||||||
| Deposits paid on options not yet exercised | 2,000,000 | |||||||||||||
| Potential reduction amount of liability | 177,600,000 | |||||||||||||
| Liquidated amount liability | 12,200,000 | |||||||||||||
| Number of helicopters | 10 | 3 | 5 | |||||||||||
| Helicopters deliverable in 2013 | 2 | |||||||||||||
| Helicopters deliverable in 2014 | 1 | |||||||||||||
| Additional number of helicopters | 10 | 5 | ||||||||||||
| One-time charge | 2,000,000 | |||||||||||||
| Impairment charge | 5,900,000 | |||||||||||||
| Investment value | 0 | |||||||||||||
| Deferred Revenue | 20,269,000 | 15,620,000 | 8,953,000 | 11,124,000 | 9,305,000 | 123,000 | 16,900,000 | |||||||
| Partner contributions | $ 9,200,000 | |||||||||||||