Subsequent Events (Details) (Subsequent Event, USD $)
0 Months Ended
Apr. 29, 2015
aircraft
Debt financing facility
 
Subsequent Event [Line Items]  
Maximum borrowing capacity 195,000,000
Number of lenders 3
Percentage of purchase price financed through the debt facility 80.00%
Average interest rate - less than (percent) 5.00%
Debt financing facility | A-320
 
Subsequent Event [Line Items]  
Number of aircraft financed 5
Senior debt facility
 
Subsequent Event [Line Items]  
Maximum borrowing capacity 168,600,000
Term of debt instrument 12 years
Subordinate debt facility
 
Subsequent Event [Line Items]  
Maximum borrowing capacity 26,400,000
Term of debt instrument 6 years