Commitment and Contingencies - Long Term Purchase Commitments (Details)	Jun. 30, 2023 aircraft
Long-term Purchase Commitment [Line Items]
2023	136
2024	86
Other Commitment, Number Of Aircrafts To Be Purchased, Year Three	86
Other Commitment, Number Of Aircrafts To Be Purchased, Year Four	85
Other Commitment, Number Of Aircrafts To Be Purchased, Year Five	36
Other Commitment, Number Of Aircrafts To Be Purchased, Year Six	30
Other Commitment, Number Of Aircrafts To Be Purchased, Year Seven	50
Other Commitment, Number Of Aircrafts To Be Purchased, Year Eight	55
Other Commitment, Number Of Aircrafts To Be Purchased, Year Nine	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	51
Other Commitment, Number Of Aircrafts To Be Purchased, Year Three	30
Other Commitment, Number Of Aircrafts To Be Purchased, Year Four	30
Other Commitment, Number Of Aircrafts To Be Purchased, Year Five	15
Other Commitment, Number Of Aircrafts To Be Purchased, Year Six	15
Other Commitment, Number Of Aircrafts To Be Purchased, Year Seven	20
Other Commitment, Number Of Aircrafts To Be Purchased, Year Eight	0
Other Commitment, Number Of Aircrafts To Be Purchased, Year Nine	0
Total	192
-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	35
Other Commitment, Number Of Aircrafts To Be Purchased, Year Three	0
Other Commitment, Number Of Aircrafts To Be Purchased, Year Four	15
Other Commitment, Number Of Aircrafts To Be Purchased, Year Five	15
Other Commitment, Number Of Aircrafts To Be Purchased, Year Six	15
Other Commitment, Number Of Aircrafts To Be Purchased, Year Seven	30
Other Commitment, Number Of Aircrafts To Be Purchased, Year Eight	55
Other Commitment, Number Of Aircrafts To Be Purchased, Year Nine	0
Total	270
-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	51
-7 or -8 Options
Long-term Purchase Commitment [Line Items]
2023	0
2024	0
Other Commitment, Number Of Aircrafts To Be Purchased, Year Three	56
Other Commitment, Number Of Aircrafts To Be Purchased, Year Four	40
Other Commitment, Number Of Aircrafts To Be Purchased, Year Five	6
Other Commitment, Number Of Aircrafts To Be Purchased, Year Six	0
Other Commitment, Number Of Aircrafts To Be Purchased, Year Seven	0
Other Commitment, Number Of Aircrafts To Be Purchased, Year Eight	0
Other Commitment, Number Of Aircrafts To Be Purchased, Year Nine	0
Total	102
-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