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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
CURRENT ASSETS: |  |
Cash and cash equivalents | $ 328,384 | $ 181,792
Marketable securities | 360,945 | 503,503
Income tax receivable | 25,936 | 5,316
Receivables, net | 64,194 | 42,731
Inventories, net | 127,690 | 119,755
Prepaid aircraft rents | 87,031 | 115,098
Other current assets | 26,614 | 26,938
Total current assets | 1,020,794 | 995,133
PROPERTY AND EQUIPMENT: |  |
Aircraft and rotable spares | 6,433,916 | 5,335,870
Deposits on aircraft | 42,012 | 49,000
Buildings and ground equipment | 291,544 | 265,608
Total property and equipment, gross | 6,767,472 | 5,650,478
Less-accumulated depreciation and amortization | (1,761,728) | (1,467,475)
Total property and equipment, net | 5,005,744 | 4,183,003
OTHER ASSETS: |  |
Long-term prepaid assets | 181,830 | 230,923
Other long-term assets | 104,844 | 65,341
Total other assets | 286,674 | 296,264
Total assets | 6,313,212 | 5,474,400
CURRENT LIABILITIES: |  |
Current maturities of long-term debt | 350,206 | 309,678
Accounts payable | 331,982 | 288,904
Accrued salaries, wages and benefits | 161,606 | 154,367
Taxes other than income taxes | 16,024 | 19,228
Other current liabilities | 65,008 | 48,648
Total current liabilities | 924,826 | 820,825
OTHER LONG-TERM LIABILITIES | 66,870 | 58,662
LONG-TERM DEBT, net of current maturities | 2,809,768 | 2,377,346
DEFERRED INCOME TAXES PAYABLE | 518,159 | 419,020
DEFERRED AIRCRAFT CREDITS | 29,308 | 44,225
COMMITMENTS AND CONTINGENCIES (Note 5) |  |
STOCKHOLDERS' EQUITY: |  |
Preferred stock, 5,000,000 shares authorized; none issued |  |
Common stock, no par value, 120,000,000 shares authorized; 81,239,289 and 80,398,104 shares issued, respectively | 690,910 | 672,593
Retained earnings | 1,776,585 | 1,516,957
Treasury stock, at cost, 29,850,999 and 28,643,535 shares, respectively | (503,182) | (435,178)
Accumulated other comprehensive loss | (32) | (50)
Total stockholders' equity | 1,964,281 | 1,754,322
Total liabilities and stockholders' equity | $ 6,313,212 | $ 5,474,400

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