Income Taxes - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Line Items]
U.S. federal corporate income tax rate	21.00%	21.00%	21.00%
Foreign NOLs for HK, Ireland and Singapore net of unrecognized tax benefits and valuation allowance	$ 494.5	$ 564.6
Aircraft leasing incentive program participation expire date	Jul. 31, 2023
Aircraft leasing incentive program participation renew date	Jul. 31, 2028
Valuation allowance	$ 18.2	23.2
Adjustment to the valuation allowance	5.0	0.9	$ 0.4
Tax-related interest benefit			$ 0.1
Cumulative liability for tax-related interest	0.0	0.0
U.S. Federal [Member]
Income Taxes [Line Items]
U.S. net operating losses	$ 1,900.0	$ 1,600.0
NOL Expirations	2037
Income tax year subject to examination	2016 2017 2018 2019 2020 2021 2022
Foreign [Member] \| Singapore [Member]
Income Taxes [Line Items]
Income tax year subject to examination	2016 2017 2018 2019 2020 2021 2022
Foreign [Member] \| Hong Kong [Member]
Income Taxes [Line Items]
Income tax year subject to examination	2016 2017 2018 2019 2020 2021 2022

Aircraft leasing incentive program participation expire date.

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Aircraft leasing incentive program participation renew date.

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Income taxes.

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Net operating losses expiration year.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign operating loss carryforwards.

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-Name Accounting Standards Codification
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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The amount of estimated interest accrued as of the balance sheet date arising from income tax examinations.

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The amount of estimated interest recognized in the period arising from income tax examinations.

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Tax year that remains open to examination under enacted tax laws, in YYYY format.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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