Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current Assets
Cash and cash equivalents	$ 606,567	$ 910,965
Restricted cash	10,361	10,052
Accounts receivable, net of allowance of $3,929 and $4,003, respectively	279,033	305,905
Prepaid expenses, assets held for sale and other current assets	97,057	99,100
Total current assets	993,018	1,326,022
Property and Equipment
Flight equipment	5,752,365	5,449,100
Ground equipment	107,302	101,824
Less: accumulated depreciation	(1,415,347)	(1,319,636)
Flight equipment purchase deposits and modifications in progress	365,920	352,422
Property and equipment, net	4,810,240	4,583,710
Other Assets
Operating lease right-of-use assets	122,993	138,744
Deferred costs and other assets	310,976	329,971
Intangible assets, net and goodwill	61,781	64,796
Total Assets	6,299,008	6,443,243
Current Liabilities
Accounts payable	83,771	82,885
Accrued liabilities	654,498	641,978
Current portion of long-term debt and finance leases	355,595	639,811
Current portion of long-term operating leases	55,138	55,383
Total current liabilities	1,149,002	1,420,057
Other Liabilities
Long-term debt and finance leases	1,720,082	1,655,075
Long-term operating leases	138,704	166,022
Deferred taxes	397,890	354,798
Financial instruments and other liabilities	28,764	37,954
Total other liabilities	2,285,440	2,213,849
Commitments and contingencies	0	0
Stockholders’ Equity
Preferred stock, $1 par value; 10,000,000 shares authorized; no shares issued	0	0
Common stock, $0.01 par value; 100,000,000 shares authorized; 35,227,975 and 34,707,860 shares issued, 28,320,835 and 29,215,702 shares outstanding (net of treasury stock), as of June 30, 2022 and December 31, 2021, respectively	352	347
Additional paid-in capital	863,014	934,516
Treasury stock, at cost; 6,907,140 and 5,492,158 shares, respectively	(337,635)	(225,461)
Accumulated other comprehensive income (loss)	75	(511)
Retained earnings	2,338,760	2,100,446
Total stockholders’ equity	2,864,566	2,809,337
Total Liabilities and Equity	$ 6,299,008	$ 6,443,243