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Commitments and Contingencies - Aircraft Acquisition (Details)	9 Months Ended
	Sep. 30, 2023 aircraft
Aircrafts
Long-term Purchase Commitment [Line Items]
2023	24
2024	91
2025	62
2026	75
2027	58
Thereafter	41
Total	351
Airbus A220-100/300
Long-term Purchase Commitment [Line Items]
2023	6
2024	19
2025	10
2026	18
2027	14
Thereafter	0
Total	67
Airbus A320/321neo
Long-term Purchase Commitment [Line Items]
2023	10
2024	20
2025	13
2026	40
2027	40
Thereafter	38
Total	161
Number of long-range variant aircraft	12
Number of extra long-range variant aircrafts	49
Airbus A330-900neo
Long-term Purchase Commitment [Line Items]
2023	2
2024	6
2025	0
2026	0
2027	0
Thereafter	0
Total	8
Airbus A350-900/1000
Long-term Purchase Commitment [Line Items]
2023	0
2024	4
2025	0
2026	0
2027	0
Thereafter	0
Total	4
Airbus A350F
Long-term Purchase Commitment [Line Items]
2023	0
2024	0
2025	0
2026	0
2027	4
Thereafter	3
Total	7
Boeing 737-8/9 MAX
Long-term Purchase Commitment [Line Items]
2023	6
2024	32
2025	30
2026	16
2027	0
Thereafter	0
Total	84
Boeing 787-9/10
Long-term Purchase Commitment [Line Items]
2023	0
2024	10
2025	9
2026	1
2027	0
Thereafter	0
Total	20

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