CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net (loss)/income	$ (242,334)	$ 284,851
Adjustments to reconcile net (loss)/income to net cash provided by operating activities:
Depreciation	713,095	651,742
Write-off of Russian fleet	802,352	0
Stock-based compensation expense	9,799	18,800
Deferred taxes	(78,035)	64,931
Amortization of debt discounts and issuance costs	39,772	37,109
Amortization of prepaid lease costs	34,734	33,603
Gain on aircraft sales, trading and other activity	(85,616)	(1,184)
Changes in operating assets and liabilities:
Other assets	(243,109)	(148,982)
Accrued interest and other payables	(8,354)	(7,283)
Rentals received in advance	16,259	(4,199)
Net cash provided by operating activities	958,563	929,388
Investing Activities
Acquisition of flight equipment under operating lease	(2,166,317)	(1,670,203)
Payments for deposits on flight equipment purchases	(428,424)	(303,856)
Proceeds from aircraft sales, trading and other activity	42,043	2,042
Acquisition of aircraft furnishings, equipment and other assets	(162,897)	(178,359)
Net cash used in investing activities	(2,715,595)	(2,150,376)
Financing Activities
Issuance of common stock upon exercise of options	0	1,438
Cash dividends paid on Class A common stock	(62,738)	(54,737)
Common shares repurchased	(150,000)	(5,780)
Net proceeds from preferred stock issuance	0	295,428
Cash dividends paid on preferred stock	(31,275)	(19,010)
Tax withholdings on stock-based compensation	(8,903)	(7,441)
Net change in unsecured revolving facilities	1,570,000	0
Proceeds from debt financings	1,497,615	3,655,830
Payments in reduction of debt financings	(1,327,146)	(2,585,652)
Debt issuance costs	(5,855)	(9,688)
Security deposits and maintenance reserve receipts	308,637	112,155
Security deposits and maintenance reserve disbursements	(24,627)	(25,654)
Net cash provided by financing activities	1,765,708	1,356,889
Net decrease in cash	8,676	135,901
Cash, cash equivalents and restricted cash at beginning of period	1,108,292	1,757,767
Cash, cash equivalents and restricted cash at end of period	1,116,968	1,893,668
Supplemental Disclosure of Cash Flow Information
Cash paid during the period for interest, including capitalized interest of $29,335 and $38,265 at September 30, 2022 and 2021, respectively	442,461	428,349
Cash paid for income taxes	5,808	2,739
Supplemental Disclosure of Noncash Activities
Buyer furnished equipment, capitalized interest and deposits on flight equipment purchases applied to acquisition of flight equipment	596,021	663,072
Cash dividends declared on common stock, not yet paid	$ 20,515	$ 18,263