Summary of Significant Accounting Policies (Policies)	9 Months Ended
Summary of Significant Accounting Policies (Policies)	Sep. 30, 2023
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying Unaudited Condensed Consolidated Financial Statements of the Company have been prepared in conformity with accounting principles generally accepted in the United States (“GAAP”), consistent in all material respects with those applied in the 2022 Form 10-K, for interim financial information and in accordance with the rules and regulations of the Securities and Exchange Commission. Therefore, they do not include all information and footnotes normally included in annual consolidated financial statements and should be read in conjunction with the consolidated financial statements and notes thereto included in the 2022 Form 10-K. In the opinion of management, the Unaudited Condensed Consolidated Financial Statements contain all adjustments (consisting principally of normal recurring accruals) necessary for a fair presentation of the Condensed Consolidated Balance Sheets, Statements of Income, Statements of Comprehensive Income, Statements of Redeemable Preferred Stock and Shareholders’ Equity and Statements of Cash Flows for such interim periods presented. Operating results for interim periods are not necessarily indicative of the results that can be expected for a full year. Additionally, certain reclassifications have been made to the prior year presentation to conform to the current year presentation. These reclassifications had no effect on the reported results of operations. An adjustment has been made to the Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2022 as the “Interest revenue” balance has been reported on a separate line item apart from “Other revenue” in the current period financial statements. In accordance with GAAP, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period. In preparing these financial statements, management has made its best estimates and judgments of certain amounts included in the financial statements, giving due consideration to materiality. These estimates and judgments are based on historical experience and other assumptions that management believes are reasonable and take into account the economic implications of the recent COVID-19 pandemic and the current high interest rate and inflationary environment on the Company’s critical and significant accounting estimates. However, application of these accounting policies involves the exercise of judgment and use of assumptions as to future uncertainties and, as a result, actual results could differ materially from these estimates. The significant estimates made in the accompanying Unaudited Condensed Consolidated Financial Statements include certain assumptions related to intangible assets, long-lived assets, equipment held for sale, allowances for doubtful accounts and credit losses, inventory, deferred in-substance fixed payment use fees included in “Unearned revenue” on the Condensed Consolidated Balance Sheets, and estimated income taxes. Actual results may differ materially from these estimates under different assumptions or conditions. Given the uncertainty in the current high interest rate and inflationary environment, the Company will continue to evaluate the nature and extent of the impact to its business, results of operations and financial condition.
Principles of Consolidation	Principles of ConsolidationThe accompanying Unaudited Condensed Consolidated Financial Statements include the accounts of the Company and its wholly owned subsidiaries, including variable interest entities (“VIEs”), where the Company is the primary beneficiary in accordance with consolidation guidance. The Company first evaluates all entities in which it has an economic interest to determine whether for accounting purposes the entity is either a VIE or a voting interest entity. If the entity is a VIE, the Company consolidates the financial statements of that entity if it is the primary beneficiary of such entity’s activities. If the entity is a voting interest entity, the Company consolidates the financial statements of that entity when it has a majority of voting interests in such entity. Intercompany transactions and balances have been eliminated in consolidation.
Risks and Uncertainties	Risks and UncertaintiesThe scope and nature of the impact of COVID-19 on the airline industry, and in turn on the Company’s business, continue to evolve and the outcomes are uncertain. Additionally, given the uncertainty in the rapidly changing market and economic conditions related to the current high interest rate and inflationary environment, we will continue to evaluate the nature and extent of the impact on the Company’s business and financial position. The ultimate extent of the effects of the recent COVID-19 pandemic and the current high interest rate and inflationary environment on the Company will depend on future developments, and such effects could exist for an extended period of time.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Recent Accounting Pronouncements Adopted by the Company At the beginning of January 2023, the Company adopted Accounting Standards Update (“ASU”) 2016-13, “Financial Instruments – Credit Losses (Topic 326) Measurement of Credit Losses on Financial Instruments.” ASU 2016-13 revises the measurement of credit losses for financial assets measured at amortized cost from an incurred loss methodology to an expected loss methodology. ASU 2016-13 affects trade receivables, debt securities, net investment in leases, and most other financial assets that represent a right to receive cash. Additional disclosures about significant estimates and credit quality are also required. There was not a significant impact on the Unaudited Condensed Consolidated Financial Statements upon adoption of the standard. Notes receivable and investments in sales-type leases, net of allowances, represent the current remaining balances we expect to collect for our failed sale-leaseback transactions and sales-type leases. We establish allowances for credit losses to cover probable but specifically unknown losses existing in the portfolio. In doing so, we categorize our financial assets by pools with similar risk characteristics, including whether the financial asset is collateral-backed and whether the customer is placed on non-accrual status. A write-off is recorded when all or part of the financial asset is deemed uncollectible. Write-offs are charged against previously established allowances for credit losses. Partial or full recoveries of amounts previously written off are generally recognized as a reduction in the allowances for credit losses. Receivables, net of allowances, include amounts billed to customers where the right to payment is unconditional. We maintain an allowance for our trade receivables to provide for the estimated amount that will not be collected, even when the risk of loss is remote. The allowance is measured on a collective pool basis when similar risk characteristics exist and is established as a percentage of accounts receivable. The percentage is based on all available and relevant information including age of outstanding receivables, historical payment experience and loss history, current economic conditions, and, when reasonable and supportable factors exist, management’s expectation of future economic conditions. A write-off is recorded when all or part of the receivable is deemed uncollectible. Write-offs are charged against the previously established allowance for credit losses. Partial or full recoveries of amounts previously written off are generally recognized as a reduction in the allowance for credit losses. Recent Accounting Pronouncements To Be Adopted by the Company In August 2023, the FASB issued ASU 2023-05, “Business Combinations – Joint Venture Formations (Subtopic 805-60): Recognition and Initial Measurement.” The amendments in this ASU apply to the formation of a joint venture, and under this ASU, a joint venture formation is the creation of a new reporting entity that would trigger a new basis of accounting. This ASU requires net assets contributed to the joint venture in a formation transaction to be measured at fair value at the formation date. The amendments in this ASU are effective for all joint ventures within the ASU’s scope that are formed on or after January 1, 2025, with early adoption permitted. Joint ventures formed on or after the effective date of ASU 2023-05 will be required to apply the new guidance prospectively. Joint ventures formed before the ASU’s effective date are permitted to apply the new guidance (1) retrospectively if they have “sufficient information” to do so or (2) prospectively if financial statements have not yet been issued (or made available for issuance). The Company expects to adopt this accounting standard update effective January 1, 2025 and is currently evaluating the potential effects on the consolidated financial statements.