CONSOLIDATED STATEMENTS OF INCOME AND OTHER COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues [Abstract]
Rental of flight equipment	$ 2,003,337	$ 1,946,620	$ 1,916,869
Aircraft sales, trading, and other	$ 85,052	$ 68,819	$ 100,035
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	$ 2,088,389	$ 2,015,439	$ 2,016,904
Expenses
Interest	462,396	431,733	397,320
Amortization of debt discounts and issuance costs	50,620	43,025	36,691
Interest expense	513,016	474,758	434,011
Depreciation of flight equipment	882,562	780,691	702,810
Selling, general, and administrative	125,279	95,684	123,653
Stock-based compensation	26,516	17,628	20,745
Total expenses	1,547,373	1,368,761	1,281,219
Income before taxes	541,016	646,678	735,685
Income tax expense	(104,384)	(130,414)	(148,564)
Net income	436,632	516,264	587,121
Preferred stock dividends	(28,473)	(15,375)	(11,958)
Net income available to common stockholders, basic	408,159	500,889	575,163
Net income available to common stockholders, diluted	408,159	500,889	575,163
Other Comprehensive Income/(Loss):
Foreign currency translation adjustment	(2,419)	(6,828)	(7,191)
Change in fair value of hedged transactions	(294)	8,992	5,441
Total tax benefit/(expense) on other comprehensive income/loss	580	(442)	353
Other comprehensive (loss)/income, net of tax	(2,133)	1,722	(1,397)
Total comprehensive income available for common stockholders	$ 406,026	$ 502,611	$ 573,766
Earnings per share of common stock:
Basic (in dollars per share)	$ 3.58	$ 4.41	$ 5.14
Diluted (in dollars per share)	$ 3.57	$ 4.39	$ 5.09
Weighted-average shares of common stock outstanding
Basic (in shares)	114,050,578	113,684,782	111,895,433
Diluted (in shares)	114,446,093	114,014,021	113,086,323
Dividends declared per share (in dollars per share)	$ 0.67	$ 0.61	$ 0.54