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v3.23.4

Organization and Operations - Additional Information (Detail) |  |  |  |  |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended | 24 Months Ended |  |  |
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Jan. 11, 2024 USD ($) AirCraft | Dec. 31, 2023 USD ($) | Dec. 01, 2023 USD ($) Engine | Oct. 01, 2023 USD ($) AirCraft Engine | Jan. 13, 2023 shares | Dec. 20, 2019 AirCraft | Nov. 30, 2023 USD ($) | Sep. 30, 2023 USD ($) DailyDeparture State AirCraft shares | May 31, 2023 AirCraft | Dec. 31, 2022 USD ($) AirCraft | Aug. 31, 2022 AirCraft | Mar. 31, 2024 USD ($) AirCraft | Sep. 30, 2023 USD ($) DailyDeparture AirCraft State City Employee shares | Sep. 30, 2022 USD ($) shares | Sep. 30, 2021 USD ($) | Dec. 31, 2024 USD ($) | Sep. 06, 2023 USD ($) | Jun. 30, 2023 USD ($) | Dec. 27, 2022 USD ($)
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of states in which entity operates | State |  |  |  |  |  |  |  | 36 |  |  |  |  | 36 |  |  |  |  |  |
Number of aircrafts operated | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 120 |  |  |  |  |  |
Reduction in loan amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 5,000,000 |  |  |  |  |  |
Number of cities in which entity operates | City |  |  |  |  |  |  |  |  |  |  |  |  | 86 |  |  |  |  |  |
Number of daily departures | DailyDeparture |  |  |  |  |  |  |  | 296 |  |  |  |  | 296 |  |  |  |  |  |
Number of employees | Employee |  |  |  |  |  |  |  |  |  |  |  |  | 2,303 |  |  |  |  |  |
Net cash (used in) provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  | $ (24,091,000) | $ 13,362,000 | $ 132,871,000 |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  |  |  |  |  | (120,116,000) | (182,678,000) | 16,588,000 |  |  |  |
Non-cash impairment charge |  |  |  |  |  |  |  |  |  |  |  |  | 50,600,000 | 62,100,000 | 0 |  |  |  |
Loan forgiven |  |  |  |  |  |  |  |  |  |  |  |  | $ (1,505,000) | $ (397,000) | 950,000 |  |  |  |
Common stock, shares issued | shares |  |  |  |  |  |  |  | 40,940,326 |  |  |  |  | 40,940,326 | 36,376,897 |  |  |  |  |
Consideration for amended description |  |  |  |  |  |  |  |  |  |  |  |  | Additionally, in January 2023, in consideration for entering in the Amended and Restated United CPA and providing the revolving line of credit, discussed in Note 10, the Company (i) granted United the right to designate one individual to the Company's board of directors (the "United Designee"), which occurred effective May 2, 2023 with the appointment of Jonathan Ireland and (ii) issued to United 4,042,061 shares of the Company’s common stock equal to approximately 10% of the Company’s issued and outstanding capital stock on such date (the "United Shares"). United's board designee rights will terminate at such time as United's equity ownership in the Company falls below five percent (5%) of the Company's issued and outstanding stock. |  |  |  |  |  |
Additional revenue and liquidity |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,400,000 |  |  |  |  |
Elimination in financing lease payments |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,100,000 | 2,500,000 |  |  |  |  |
United capacity purchase agreement termination notice period |  |  |  |  |  |  |  |  |  |  |  |  | 30 days |  |  |  |  |  |
Current portion of long-term debt |  |  |  |  |  |  |  | $ 163,550,000 |  |  |  |  | $ 163,550,000 | 97,218,000 |  |  |  | $ 154,971,000 |
Gain on sale of assets |  |  |  |  |  |  |  |  |  |  |  |  | 7,162,000 | 4,723,000 | $ (78,000) |  |  |  |
Long-term debt and finance leases, excluding current portion |  |  |  |  |  |  |  | 364,728,000 |  |  |  |  | 364,728,000 | $ 502,517,000 |  |  |  | 411,311,000 |
EDC Loan and MHIRJ Junior Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds from sale of asset |  |  |  |  |  |  |  |  |  |  |  |  | 27,200,000 |  |  |  |  |  |
Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of surplus engines to be sold | Engine |  |  | 12 | 12 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircraft sold | AirCraft | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional revenue and liquidity | $ 63,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds from sale of asset |  |  | $ 56,000,000 | $ 56,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payment of debt and liquidity to fund operations and current debt obligations |  |  | $ 40,000,000 | $ 40,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving Credit Facility [Member] | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long term debt | 2,100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving loan |  |  |  |  |  |  |  | $ 25,500,000 |  |  |  |  | 25,500,000 |  |  |  |  |  |
Additional prepayment with potential forgiveness |  |  |  |  |  |  |  |  |  |  |  |  | 15,000,000 |  |  |  |  |  |
Debt reduction amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,900,000 |  |  |  |  |  |
Percentage of controllable completion factor |  |  |  |  |  |  |  |  |  |  |  |  | 99.30% |  |  |  |  |  |
United Line of Credit [Member] | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional prepayment with potential forgiveness |  |  |  |  |  |  | $ 9,000,000 |  |  |  |  |  |  |  |  |  |  |  |
United Capacity Purchase Agreement [Member] | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long term debt | 10,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional revenue and liquidity | $ 63,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
United Capacity Purchase Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving loan |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,500,000
Revolving commitments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 30,700,000
Correction of Error [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current portion of long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30,600,000 |
Factual balance sheet misstatement associated with certain debt covenant |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 30,600,000 |
Maximum [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving commitments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 50,700,000 |  |
Maximum [Member] | United Capacity Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircrafts operated | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 80 |  |  |  |  |  |
Minimum [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revolving commitments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 30,700,000 |  |
RASPRO Aircraft Lease Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircraft lease terminated | AirCraft |  |  |  |  |  |  |  |  |  | 15 |  |  |  |  |  |  |  |  |
Buyout pricing |  |  |  |  |  |  |  |  |  | $ 25,000,000 |  |  |  |  |  |  |  |  |
Purchase Agreement [Member] | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of engines to be sold | Engine |  |  |  | 23 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds from sale of asset |  |  |  | $ 11,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
CRJ-900 Aircraft [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircraft sold | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 7 |  |  |  |  |  |
Number of aircraft to be sold | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 11 |  |  |  |  |  |
CRJ-900 Aircraft [Member] | Subsequent Event | EDC Loan and MHIRJ Junior Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of asset |  |  |  | 600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long term debt |  |  |  | 4,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan forgiven |  |  |  | $ 5,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
CRJ-900 Aircraft [Member] | UST Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of asset |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,500,000 |  |  |  |  |  |
Gross proceeds from sale of asset |  |  |  |  |  |  |  |  |  |  |  |  | $ 21,000,000 |  |  |  |  |  |
CRJ-900 Aircraft [Member] | UST Loan [Member] | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircraft sold | AirCraft |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of asset |  |  |  | $ 6,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds from sale of asset |  |  |  | $ 12,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
CRJ-900 Aircraft [Member] | United Capacity Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircrafts operated | AirCraft |  |  |  |  |  |  |  | 24 |  |  |  |  | 26 |  |  |  |  |  |
Maximum number of aircraft to be operated | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 38 |  |  |  |  |  |
CRJ-900 Aircraft [Member] | Scenario Forecast [Member] | EDC Loan and MHIRJ Junior Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of long term debt |  | $ 4,200,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loan forgiven |  | $ 5,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
CRJ-900 Aircraft [Member] | Scenario Forecast [Member] | Export Development Bank of Canada Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum liquidity provided |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 14,000,000 |  |  |
E-175 Aircraft [Member] | United Capacity Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircrafts operated | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 54 |  |  |  |  |  |
Number of aircrafts to be removed | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 18 |  |  |  |  |  |
Boeing 737400F [Member] | DHL Flight Services Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircrafts operated | AirCraft |  |  |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |
Aircraft lease term |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircraft leased | AirCraft |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |
Notice period for termination of agreement |  |  |  |  |  |  |  |  |  |  |  |  | At any time after the first anniversary of the commencement date of the first aircraft placed in service with 90 days' written notice. |  |  |  |  |  |
Aircraft option to extend agreement description |  |  |  |  |  |  |  |  |  |  |  |  | DHL has the option to extend the agreement with respect to one or more aircraft for a period of one year with 90 days’ advance written notice. |  |  |  |  |  |
Boeing737800 F [Member] | DHL Flight Services Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircraft leased | AirCraft |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |  |  |  |
Captains [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increased overall hourly pay due to pilot shortage and attrition |  |  |  |  |  |  |  | 118.00% |  |  |  |  | 118.00% |  |  |  |  |  |
New Hire First Officers [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increased overall hourly pay due to pilot shortage and attrition |  |  |  |  |  |  |  | 172.00% |  |  |  |  | 172.00% |  |  |  |  |  |
United [Member] | United Capacity Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares issued | shares |  |  |  |  | 4,042,061 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock Issued Equivalent Percentage Of Issued And Outstanding Capital Stock |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of controllable completion factor |  |  |  |  |  |  |  |  |  |  |  |  | 99.30% |  |  |  |  |  |
United [Member] | United Capacity Purchase Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional prepayment with potential forgiveness |  |  |  |  |  |  |  |  |  |  |  |  | $ 15,000,000 |  |  |  |  |  |
United [Member] | CRJ-700 Aircraft [Member] | United Capacity Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircrafts listed for sale | AirCraft |  |  |  |  |  |  |  |  |  |  | 18 |  |  |  |  |  |  |  |
Number of aircraft lease terminated | AirCraft |  |  |  |  |  |  |  |  |  |  | 18 |  |  |  |  |  |  |  |
Aircraft lease term |  |  |  |  |  |  |  |  |  |  |  |  | 9 years |  |  |  |  |  |
United [Member] | E175LL Aircraft [Member] | United Capacity Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircraft leased | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 20 |  |  |  |  |  |
Notice period for termination of agreement |  |  |  |  |  |  |  |  |  |  |  |  | United, subject to certain conditions, including the payment of certain costs tied to aircraft type, may terminate the agreement in its discretion, or remove E-175 aircraft from service, by giving us notice of 90 days or more; and |  |  |  |  |  |
United [Member] | E-175 Aircraft [Member] | United Capacity Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircrafts operated | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 42 |  |  |  |  |  |
Lease expiration year |  |  |  |  |  |  |  |  |  |  |  |  | 2028 |  |  |  |  |  |
Number of aircrafts owned | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 18 |  |  |  |  |  |
Notice period for termination of agreement |  |  |  |  |  |  |  |  |  |  |  |  | United, subject to certain conditions, including the payment of certain costs tied to aircraft type, to terminate the agreement in its discretion, or remove aircraft from service, by giving us notice of 90 days or more |  |  |  |  |  |
United [Member] | E-175 Aircraft [Member] | Maximum [Member] | United Capacity Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease expiration year |  |  |  |  |  |  |  |  |  |  |  |  | 2028 |  |  |  |  |  |
United [Member] | E-175 Aircraft [Member] | Minimum [Member] | United Capacity Purchase Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease expiration year |  |  |  |  |  |  |  |  |  |  |  |  | 2024 |  |  |  |  |  |
American Airlines Inc. [Member] | EDC Loan and MHIRJ Junior Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircraft held for sale | AirCraft |  |  |  |  |  |  |  |  | 7 |  |  |  |  |  |  |  |  |  |
Number of aircraft sold | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |
American Airlines Inc. [Member] | Subsequent Event | EDC Loan and MHIRJ Junior Note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircraft sold | AirCraft |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
American Airlines Inc. [Member] | CRJ-900 Aircraft [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of surplus aircraft to be sold | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 7 |  |  |  |  |  |
Number of surplus aircraft sold | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |
Proceeds from sale of asset |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,400,000 |  |  |  |  |  |
Gross proceeds from sale of asset |  |  |  |  |  |  |  |  |  |  |  |  | 29,700,000 |  |  |  |  |  |
American Airlines Inc. [Member] | CRJ-900 Aircraft [Member] | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircraft sold | AirCraft |  |  |  | 4 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from sale of asset |  |  |  | $ 5,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross proceeds from sale of asset |  |  |  | $ 41,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impact Of Pilot Shortage and Attrition [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash (used in) provided by operating activities |  |  |  |  |  |  |  |  |  |  |  |  | 24,100,000 |  |  |  |  |  |
Net (loss) income |  |  |  |  |  |  |  |  |  |  |  |  | (120,100,000) |  |  |  |  |  |
Non-cash impairment charge |  |  |  |  |  |  |  |  |  |  |  |  | 54,300,000 |  |  |  |  |  |
Impact Of Pilot Shortage and Attrition [Member] | Export Development Bank of Canada Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal contingent amount upon repayment |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,200,000 |  |  |  |  |  |
Impact Of Pilot Shortage and Attrition [Member] | RASPRO Aircraft Lease Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of aircrafts operated | AirCraft |  |  |  |  |  |  |  |  |  |  |  |  | 15 |  |  |  |  |  |
Impact Of Pilot Shortage and Attrition [Member] | Scenario Forecast [Member] | RASPRO Aircraft Lease Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net cash from aircraft and equipment purchase agreement |  |  |  |  |  |  |  |  |  |  |  | $ (12,100,000) |  |  |  |  |  |  |
Buyout price |  |  |  |  |  |  |  |  |  |  |  | $ 50,300,000 |  |  |  |  |  |  |
Impact Of Pilot Shortage and Attrition [Member] | Scenario Forecast [Member] | RASPRO Aircraft Lease Agreement One [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of engines | AirCraft |  |  |  |  |  |  |  |  |  |  |  | 30 |  |  |  |  |  |  |
Buyout pricing |  |  |  |  |  |  |  |  |  |  |  | $ 19,500,000 |  |  |  |  |  |  |
Impact Of Pilot Shortage and Attrition [Member] | Scenario Forecast [Member] | RASPRO Aircraft Lease Agreement Two [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Organization Consolidation And Presentation Of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of airframes without engines | AirCraft |  |  |  |  |  |  |  |  |  |  |  | 15 |  |  |  |  |  |  |
Buyout pricing |  |  |  |  |  |  |  |  |  |  |  | $ 18,800,000 |  |  |  |  |  |  |

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