Quarterly report pursuant to Section 13 or 15(d)

Commitments And Contingencies (Narrative) (Details)

v2.4.0.8
Commitments And Contingencies (Narrative) (Details) (USD $)
3 Months Ended 1 Months Ended 16 Months Ended
Sep. 30, 2013
Jun. 30, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Dec. 31, 2011
Sep. 30, 2013
AW189 Heavy Helicopters [Member]
helicopter
Sep. 30, 2013
AW139 Medium Helicopter [Member]
helicopter
Sep. 30, 2013
AW169 Light Twin Helicopters [Member]
helicopter
Mar. 31, 2012
Aeroleo [Member]
Jun. 30, 2013
Aeroleo [Member]
Sep. 30, 2013
Aeroleo [Member]
Dec. 31, 2012
Aeroleo [Member]
Nov. 12, 2013
Subsequent Event [Member]
AW139 Medium Helicopter [Member]
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