Income Tax - Schedule of Net Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Deferred tax assets
Net operating losses	$ 621,393	$ 561,287
Interest expense limitation	291,865	319,546
Rents received in advance	21,104	22,492
Other	31,254	23,979
Total deferred tax assets	965,616	927,304
Deferred tax liabilities
Aircraft depreciation	(2,152,757)	(1,919,687)
Effects of foreign jurisdiction deferred taxes	(108,560)	(148,114)
Straight-line rents	(20,969)	(31,785)
Total deferred tax liabilities	(2,282,286)	(2,099,586)
Net deferred tax assets/(liabilities)	$ (1,316,670)	$ (1,172,282)