Commitment and Contingencies - Long Term Purchase Commitments (Details)	Mar. 31, 2023 aircraft
Long-term Purchase Commitment [Line Items]
2023	136
2024	86
2025	86
2026	85
2027	36
2028	30
2029	50
2030	55
2031	0
Total	564
2022 Contractual Deliveries
Long-term Purchase Commitment [Line Items]
2023	46
2023 Contractual Deliveries
Long-term Purchase Commitment [Line Items]
2023	90
-7 Firm Orders
Long-term Purchase Commitment [Line Items]
2023	31
2024	45
2025	30
2026	30
2027	15
2028	15
2029	20
2030	0
2031	0
Total	186
-7 Firm Orders | 2022 Contractual Deliveries
Long-term Purchase Commitment [Line Items]
2023	14
Number of aircrafts to be delivered	14
-7 Firm Orders | 2023 Contractual Deliveries
Long-term Purchase Commitment [Line Items]
2023	17
-8 Firm Orders
Long-term Purchase Commitment [Line Items]
2023	105
2024	11
2025	0
2026	15
2027	15
2028	15
2029	30
2030	55
2031	0
Total	246
-8 Firm Orders | 2022 Contractual Deliveries
Long-term Purchase Commitment [Line Items]
2023	32
Number of aircrafts to be delivered	32
-8 Firm Orders | 2023 Contractual Deliveries
Long-term Purchase Commitment [Line Items]
2023	73
Number of aircrafts to be delivered	30
-7 or -8 Options
Long-term Purchase Commitment [Line Items]
2023	0
2024	30
2025	56
2026	40
2027	6
2028	0
2029	0
2030	0
2031	0
Total	132
-7 or -8 Options | 2022 Contractual Deliveries
Long-term Purchase Commitment [Line Items]
Number of aircrafts to be delivered	46
-7 or -8 Options | 2023 Contractual Deliveries
Long-term Purchase Commitment [Line Items]
Number of aircrafts to be delivered	70