Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands	1 Months Ended			3 Months Ended		12 Months Ended
	Dec. 31, 2021 Aircraftss	Jan. 31, 2021 Aircraftss	May 31, 2020 Subsidiary	Mar. 31, 2022 USD ($) shares	Mar. 31, 2021 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Jan. 01, 2022 USD ($)
Significant Accounting Policies [Line Items]
Accrued heavy maintenance cost				$ 90,100				$ 79,600
Deferred maintenance amortization expense				11,122	$ 12,000
Operating Revenue				$ 1,037,156	861,300
Liabilities and equity, including convertible debt instruments									$ 31,000
Deferred Tax Liabilities [Member]
Significant Accounting Policies [Line Items]
Liabilities and equity, including convertible debt instruments									6,900
Additional Paid-In Capital [Member]
Significant Accounting Policies [Line Items]
Liabilities and equity, including convertible debt instruments									92,600
Retained Earnings [Member]
Significant Accounting Policies [Line Items]
Liabilities and equity, including convertible debt instruments									$ 68,500
Aircraft 747-8F [Member]
Significant Accounting Policies [Line Items]
Number of aircraft purchase | Aircraftss		4
Aircraft 777-200LRF [Member]
Significant Accounting Policies [Line Items]
Number of aircraft purchase | Aircraftss	4
Forecast [Member] | Aircraft 747-8F and 777-200LRF [Member]
Significant Accounting Policies [Line Items]
Committed expenditures to acquire aircraft and spare engines						$ 359,700	$ 659,900
Payroll Support Program Agreement [Member] | Grant [Member] | Other Income (Expense), Net [Member]
Significant Accounting Policies [Line Items]
Operating Revenue					$ 40,900
Payroll Support Program Agreement [Member] | US Treasury [Member]
Significant Accounting Policies [Line Items]
Number of subsidiaries | Subsidiary			2
Warrant expiration year				2025
Number of warrant exercised | shares				0
Payroll Support Program Agreement [Member] | US Treasury [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Number of warrants issued to acquire common stock | shares				625,452