Current Developments (Details) $ / shares in Units, $ in Thousands	Jul. 28, 2022 USD ($) d $ / shares	Dec. 31, 2023 USD ($) aircraftEngine aircraft $ / shares shares	Nov. 30, 2023 $ / shares	Oct. 31, 2023 $ / shares	Sep. 30, 2023 $ / shares	Aug. 31, 2023 $ / shares	Jul. 31, 2023 $ / shares	Jun. 30, 2023 $ / shares	May 31, 2023 $ / shares	Apr. 30, 2023 $ / shares	Mar. 31, 2023 $ / shares	Feb. 28, 2023 $ / shares	Jan. 31, 2023 $ / shares	Oct. 26, 2022 $ / shares	Apr. 30, 2021 USD ($) shares	Mar. 10, 2021 $ / shares	Dec. 24, 2020 $ / shares	May 12, 2020 USD ($) shares
PW1100 GTF Engine
Business Acquisition [Line Items]
Number of engines removed from service for inspection | aircraftEngine		5
Number of engines removed from service, pending inspection | aircraftEngine		3
PW1100 GTF Engine | A320NEO
Business Acquisition [Line Items]
Number of engines removed from service for inspection | aircraftEngine		5
Number of aircraft grounded for reliability, durability and inspection requirements | aircraft		12
Payroll Support Program 1, CARES Act
Business Acquisition [Line Items]
Strike price (in dollars per share)		$ 11.663
Number of securities called by warrants (in shares) | shares		628,725.19
Payroll Support Program 2, CARES Act
Business Acquisition [Line Items]
Strike price (in dollars per share)		$ 20.229															$ 24.42
Number of securities called by warrants (in shares) | shares		166,292.37
Payroll Support Program 3, CARES Act
Business Acquisition [Line Items]
Strike price (in dollars per share)		$ 30.196														$ 36.45
Number of securities called by warrants (in shares) | shares		97,219.73
Convertible notes due in 2025 | Convertible notes
Business Acquisition [Line Items]
Shares conversion rate per portion of principal amount (in shares) | shares		94.9262																78.4314
Principal amount portion for trading price threshold | $		$ 1																$ 1
Convertible notes due in 2026 | Convertible notes
Business Acquisition [Line Items]
Shares conversion rate per portion of principal amount (in shares) | shares		24.6649													20.3791
Principal amount portion for trading price threshold | $															$ 1
JetBlue Merger Agreement
Business Acquisition [Line Items]
Merger consideration, price per share (in dollars per share)	$ 33.50
Approval prepayment amount price per share (in dollars per share)	2.50
Additional approval prepayment amount price per share (in dollars per share)	0.10
Approval prepayment maximum share price threshold (in dollars per share)	$ 1.15
Additional prepayment amount, maximum number of days after stockholder approval for payment	5 days
Additional prepayment amount, maximum number of days after end of month for payment | d	5
Approval prepayment amount price per share, paid (in dollars per share)														$ 2.50
Additional approval prepayment amount price per share, paid (in dollars per share)		$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10	$ 0.10
Business acquisition, breakup fee | $	$ 94,200
Payment to be received upon termination of merger agreement, antitrust regulatory clearance not approved | $	70,000
Payment to be received by stockholders' upon termination of merger agreement, antitrust regulatory clearance not approved | $	$ 400,000