Commitments and Contingencies - Firm Commitments and Options to Purchase Aircraft (Details)	Jun. 30, 2022 commitment
Airbus A321XLR
Long-term Purchase Commitment [Line Items]
Number of firm commitments	50
Scheduled Aircraft Deliveries
Last Six Months of 2022	0
2023	0
After 2023	50
Airbus A321neo
Long-term Purchase Commitment [Line Items]
Number of firm commitments	70
Scheduled Aircraft Deliveries
Last Six Months of 2022	0
2023	12
After 2023	58
Airbus A350
Long-term Purchase Commitment [Line Items]
Number of firm commitments	45
Scheduled Aircraft Deliveries
Last Six Months of 2022	0
2023	0
After 2023	45
Boeing 737 MAX
Long-term Purchase Commitment [Line Items]
Number of firm commitments	364
Scheduled Aircraft Deliveries
Last Six Months of 2022	50
2023	109
After 2023	205
Boeing 787
Long-term Purchase Commitment [Line Items]
Number of firm commitments	8
Scheduled Aircraft Deliveries
Last Six Months of 2022	8
2023	0
After 2023	0