Annual report pursuant to Section 13 and 15(d)

Commitment and Contingencies (Details)

v3.21.4
Commitment and Contingencies (Details) - USD ($)
$ in Thousands
12 Months Ended
Apr. 01, 2021
Sep. 30, 2021
Pending Litigation | Shoreline Aviation Inc V. Sound Aircraft Flight Enterprises Inc    
Loss Contingencies [Line Items]    
Damages sought $ 13,000  
Termination Upon Notice    
Loss Contingencies [Line Items]    
Unfulfilled purchase obligation   $ 7,200
Unfulfilled purchase obligation, termination notice period   60 days
Airline Capacity Purchase Arrangements    
Loss Contingencies [Line Items]    
Unfulfilled purchase obligation, year one   $ 4,539
Unfulfilled purchase obligation, year two   1,128
Unfulfilled purchase obligation, year three   8,328
Airline Capacity Purchase Arrangements | Immediate Termination Option    
Loss Contingencies [Line Items]    
Unfulfilled purchase obligation, year one   264
Unfulfilled purchase obligation, year two   1,128
Unfulfilled purchase obligation, year three   $ 8,328