CONSOLIDATED STATEMENTS OF INCOME AND OTHER COMPREHENSIVE INCOME/(LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenues and other income
Rental of flight equipment revenue	$ 2,684,519	$ 2,487,955	$ 2,477,607
Gain on aircraft sales and trading and other income	$ 331,230	$ 245,702	$ 207,370
Revenue from Contract with Customer, Product and Service [Extensible Enumeration]	Aircraft Sales, Trading And Other [Member]	Aircraft Sales, Trading And Other [Member]	Aircraft Sales, Trading And Other [Member]
Total revenues and other income	$ 3,015,749	$ 2,733,657	$ 2,684,977
Expenses
Interest	837,761	781,996	654,910
Amortization of debt discounts and issuance costs	52,799	54,823	54,053
Interest expense	890,560	836,819	708,963
Depreciation of flight equipment	1,223,532	1,143,761	1,068,772
Recoveries of Russian fleet write-off	(736,409)	0	(67,022)
Selling, general, and administrative	219,443	185,933	186,015
Stock-based compensation expense	48,930	33,887	34,615
Total expenses	1,646,056	2,200,400	1,931,343
Income before taxes	1,369,693	533,257	753,634
Income tax expense	(281,306)	(105,553)	(139,012)
Net income	1,088,387	427,704	614,622
Preferred stock dividends	(44,325)	(55,631)	(41,700)
Net income attributable to common stockholders, basic	1,044,062	372,073	572,922
Net income attributable to common stockholders, diluted	1,044,062	372,073	572,922
Other comprehensive income/(loss):
Foreign currency translation adjustment	(113,896)	82,952	(20,197)
Change in fair value of hedged transactions	82,996	(59,850)	19,460
Total tax benefit/(expense) on other comprehensive income/loss	6,611	(5,304)	157
Other comprehensive income/(loss), net of tax	(24,289)	17,798	(580)
Total comprehensive income attributable for common stockholders	$ 1,019,773	$ 389,871	$ 572,342
Earnings per share of common stock:
Basic (in dollars per share)	$ 9.35	$ 3.34	$ 5.16
Diluted (in dollars per share)	$ 9.29	$ 3.33	$ 5.14
Weighted-average shares of common stock outstanding
Basic (in shares)	111,712,160	111,325,481	111,005,088
Diluted (in shares)	112,330,337	111,869,386	111,438,589
Lease rentals
Revenues and other income
Rental of flight equipment revenue	$ 2,615,364	$ 2,407,506	$ 2,310,347
Maintenance rentals and other receipts
Revenues and other income
Rental of flight equipment revenue	$ 69,155	$ 80,449	$ 167,260