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v3.23.1

Commitments and Contingencies - Additional Information (Detail) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 01, 2023 USD ($) | Dec. 27, 2022 USD ($) Engine | Apr. 30, 2023 Engine | Mar. 31, 2023 USD ($) Engine | Dec. 31, 2022 Engine | Mar. 31, 2023 USD ($) Engine | Apr. 03, 2023 USD ($) | Jul. 31, 2021 USD ($) | Feb. 28, 2021 USD ($)
Purchase Commitment Excluding Longterm Commitment [Line Items] |  |  |  |  |  |  |  |  |
Number of spare engines to be sold | Engine |  |  |  |  |  | 30 |  |  |
Gross proceeds from sale of asset |  |  |  |  |  | $ 88,000,000 |  |  |
Proceeds from sale of property |  |  |  |  |  | 28,600,000 |  |  |
Number of spare engines sold | Engine |  |  |  | 10 |  |  |  |  |
Proceeds from sale of asset |  |  |  |  |  | 34,400,000 |  |  |
Retirement of debt from sale of productive assets |  |  |  | $ 5,600,000 |  | $ 5,600,000 |  |  |
Subsequent Event [Member] |  |  |  |  |  |  |  |  |
Purchase Commitment Excluding Longterm Commitment [Line Items] |  |  |  |  |  |  |  |  |
Gross proceeds from sale of asset | $ 11,000,000 |  |  |  |  |  |  |  |
Number of spare engines sold | Engine |  |  | 6 |  |  |  |  |  |
Retirement of debt from sale of productive assets |  |  |  |  |  |  | $ 11,000,000 |  |
Forward Purchase Contract [Member] | Heart Aerospace Incorporated [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |
Purchase Commitment Excluding Longterm Commitment [Line Items] |  |  |  |  |  |  |  |  |
Purchase commitment amount |  |  |  |  |  |  |  | $ 1,200,000,000.0 |
Engine Sale Agreement [Member] |  |  |  |  |  |  |  |  |
Purchase Commitment Excluding Longterm Commitment [Line Items] |  |  |  |  |  |  |  |  |
Number of spare engines to be sold | Engine |  | 30 |  |  |  |  |  |  |
Gross proceeds from sale of asset |  | $ 80,000,000.0 |  |  |  |  |  |  |
Proceeds from sale of property |  | $ 53,600,000 |  |  |  |  |  |  |
CF34-8C5 or CF34-8E5 Engines [Member] | Letter Agreement No. 13-3 [Member] |  |  |  |  |  |  |  |  |
Purchase Commitment Excluding Longterm Commitment [Line Items] |  |  |  |  |  |  |  |  |
Number of new spare engines to be acquired | Engine |  |  |  |  |  | 10 |  |  |
New spare engines delivery month and year description |  |  |  |  |  | We agreed to purchase and take delivery of ten (10) new CF34-8C5 or CF34-8E5 engines with delivery dates starting from July 1, 2021 through November 1, 2022. The total purchase commitment related to these ten (10) engines is approximately $52.2 million. |  |  |
Purchase commitment amount |  |  |  | $ 52,200,000 |  | $ 52,200,000 |  |  |
Number of additional spare engines to be acquired beyond 2022 | Engine |  |  |  |  |  | 10 |  |  |
Number of new spare engines purchased | Engine |  |  |  |  | 10 |  |  |  |
eVTOL Aircraft [Member] | Forward Purchase Contract [Member] | Archer Aviation, Inc. [Member] |  |  |  |  |  |  |  |  |
Purchase Commitment Excluding Longterm Commitment [Line Items] |  |  |  |  |  |  |  |  |
Purchase commitment amount |  |  |  |  |  |  |  |  | $ 200,000,000.0

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