CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Rental of flight equipment	$ 519,535	$ 468,443	$ 1,439,674	$ 1,462,999
Aircraft sales, trading and other	$ 4,974	$ 25,158	$ 51,539	$ 63,338
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]	Aircraft Sales, Trading And Other [Member]
Total revenues	$ 524,509	$ 493,601	$ 1,491,213	$ 1,526,337
Expenses
Interest	114,659	107,519	346,244	317,753
Amortization of debt discounts and issuance costs	12,571	10,899	37,109	31,660
Interest expense	127,230	118,418	383,353	349,413
Depreciation of flight equipment	224,960	195,054	651,742	577,969
Selling, general and administrative	31,082	20,239	84,682	75,142
Stock-based compensation	6,692	6,635	18,800	14,956
Total expenses	389,964	340,346	1,138,577	1,017,480
Income before taxes	134,545	153,255	352,636	508,857
Income tax expense	(27,208)	(32,860)	(67,785)	(103,686)
Net income	107,337	120,395	284,851	405,171
Preferred stock dividends	(7,331)	(3,843)	(19,010)	(11,531)
Net income available to common stockholders, diluted	100,006	116,552	265,841	393,640
Net income available to common stockholders, basic	100,006	116,552	265,841	393,640
Other comprehensive income/(loss):
Foreign currency translation adjustment	7,129	(5,637)	(943)	7,601
Change in fair value of hedged transactions	(7,874)	7,395	(1,677)	(7,086)
Total tax benefit/(expense) on other comprehensive income/loss	159	(378)	560	(89)
Other comprehensive income/(loss), net of tax	(586)	1,380	(2,060)	426
Total comprehensive income available for common stockholders	$ 99,420	$ 117,932	$ 263,781	$ 394,066
Earnings per share of common stock:
Basic (in dollars per share)	$ 0.88	$ 1.02	$ 2.33	$ 3.46
Diluted (in dollars per share)	$ 0.87	$ 1.02	$ 2.32	$ 3.46
Weighted-average shares outstanding
Basic (in shares)	114,122,512	113,778,533	114,071,951	113,647,585
Diluted (in shares)	114,381,621	113,951,102	114,415,169	113,928,775
Dividends declared per share of common stock (in dollars per share)	$ 0.16	$ 0.15	$ 0.48	$ 0.45