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Commitments and Contingencies (Detail) $ in Thousands	Dec. 31, 2021 USD ($) Aircraft
Long-term Purchase Commitment [Line Items]
2022	$ 224,587
2023	632,072
2024	765,758
2025	305,068
Total purchase commitments	$ 1,927,485
Airbus A320 Aircraft Series
Long-term Purchase Commitment [Line Items]
Number of Aircraft Committed To Purchase | Aircraft	51
Boeing 737 MAX Aircraft Series
Long-term Purchase Commitment [Line Items]
Number of Aircraft Committed To Purchase | Aircraft	50

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Number Of Aircraft Committed To Purchase

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Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

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Amount of purchase arrangement to be paid in fourth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of purchase arrangement to be paid in next fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of purchase arrangement to be paid in second fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of purchase arrangement to be paid in third fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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