XML 51 R40.htm IDEA: XBRL DOCUMENT v3.22.0.1
Balance Sheet Information - Summary of Certain Significant Amounts Included in Condensed Consolidated Balance Sheet (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Sep. 30, 2021
Expendable parts and supplies, net:    
Expendable parts and supplies $ 30,877 $ 29,297
Less: obsolescence and other (5,671) (4,830)
Expendable parts and supplies, net 25,206 24,467
Prepaid expenses and other current assets:    
Prepaid aviation insurance 140 2,171
Lease incentives 1,715 1,445
Other 2,633 3,269
Prepaid expenses and other current assets 4,488 6,885
Property and equipment, net:    
Property and equipment-gross 1,647,076 1,621,437
Less: accumulated depreciation (489,154) (469,546)
Property and equipment-net 1,157,922 1,151,891
Other assets:    
Investments in equity securities 19,005 25,149
Lease incentives 12,705 10,957
Other 42 15
Other assets 31,752 36,121
Other accrued expenses:    
Accrued property taxes 8,598 8,783
Accrued interest 4,481 2,565
Accrued vacation 5,829 5,936
Other 17,375 16,373
Other accrued expenses 36,283 33,657
Other noncurrent liabilities:    
Warrant liabilities 22,064 21,964
Lease incentive obligations 7,289 6,358
Other 4,253 6,269
Other noncurrent liabilities 33,606 34,591
Aircraft and Other Flight Equipment [Member]    
Property and equipment, net:    
Property and equipment-gross 1,637,154 1,611,544
Other Machinery and Equipment [Member]    
Property and equipment, net:    
Property and equipment-gross 4,971 4,934
Leasehold Improvements [Member]    
Property and equipment, net:    
Property and equipment-gross 2,776 2,776
Vehicles [Member]    
Property and equipment, net:    
Property and equipment-gross 1,184 1,184
Building [Member]    
Property and equipment, net:    
Property and equipment-gross 699 699
Furniture and Fixtures [Member]    
Property and equipment, net:    
Property and equipment-gross $ 292 $ 300