CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues [Abstract]
Rental of flight equipment	$ 545,271	$ 452,044	$ 1,111,825	$ 920,139
Aircraft sales, trading and other	$ 12,425	$ 39,833	$ 42,533	$ 46,565
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	$ 557,696	$ 491,877	$ 1,154,358	$ 966,704
Expenses
Interest	118,997	113,598	236,274	231,584
Amortization of debt discounts and issuance costs	13,413	12,513	26,610	24,538
Interest expense	132,410	126,111	262,884	256,122
Depreciation	235,284	217,817	470,591	426,782
Write-off of Russian fleet	0	0	802,352	0
Selling, general and administrative	38,512	26,687	71,277	53,601
Stock-based compensation expense	6,558	6,700	4,035	12,108
Total expenses	412,764	377,315	1,611,139	748,613
Income/(loss) before taxes	144,932	114,562	(456,781)	218,091
Income tax (expense)/benefit	(28,655)	(21,140)	104,065	(40,577)
Net income/(loss)	116,277	93,422	(352,716)	177,514
Preferred stock dividends	(10,425)	(7,835)	(20,850)	(11,679)
Net income/(loss) available to common stockholders, basic	105,852	85,587	(373,566)	165,835
Net income/(loss) available to common stockholders, diluted	105,852	85,587	(373,566)	165,835
Other comprehensive (loss)/income:
Foreign currency translation adjustment	9,349	(4,265)	6,330	(8,072)
Change in fair value of hedged transactions	(9,941)	3,976	(4,712)	6,197
Total tax (expense)/benefit on other comprehensive income/loss	127	62	(346)	401
Other comprehensive (loss)/income, net of tax	(465)	(227)	1,272	(1,474)
Total comprehensive income/(loss) attributable for common stockholders	$ 105,387	$ 85,360	$ (372,294)	$ 164,361
Earnings/(loss) per share of common stock:
Basic (in dollars per share)	$ 0.95	$ 0.75	$ (3.32)	$ 1.45
Diluted (in dollars per share)	$ 0.95	$ 0.75	$ (3.32)	$ 1.45
Weighted-average shares outstanding
Basic (in shares)	110,868,040	114,133,135	112,373,092	114,046,252
Diluted (in shares)	111,043,836	114,377,965	112,373,092	114,373,576
Dividends declared (in dollars per share)	$ 0.185	$ 0.16	$ 0.37	$ 0.32