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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
OPERATING REVENUES: |  |  |
Total operating revenues | $ 2,127,106 | $ 2,971,963 | $ 3,221,679
OPERATING EXPENSES: |  |  |
Salaries, wages and benefits | 826,109 | 1,001,746 | 1,201,518
Depreciation and amortization | 474,959 | 368,098 | 334,589
CARES Act payroll support grant | (345,491) |  |
Special items |  | 21,869 |
Other operating expenses | 222,797 | 243,729 | 272,826
Total operating expenses | 2,018,304 | 2,459,705 | 2,747,399
OPERATING INCOME | 108,802 | 512,258 | 474,280
OTHER INCOME (EXPENSE): |  |  |
Interest income | 5,879 | 14,131 | 8,823
Interest expense | (123,173) | (127,755) | (120,409)
Other, net | 1,165 | 47,671 | 3,620
Total other expense, net | (116,129) | (65,953) | (107,966)
INCOME (LOSS) BEFORE INCOME TAXES | (7,327) | 446,305 | 366,314
PROVISION FOR INCOME TAXES | 1,188 | 106,206 | 85,942
NET INCOME (LOSS) | $ (8,515) | $ 340,099 | $ 280,372
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share) | $ (0.17) | $ 6.68 | $ 5.40
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share) | $ (0.17) | $ 6.62 | $ 5.30
Weighted average common shares: |  |  |
Basic (in shares) | 50,195,000 | 50,932,000 | 51,914,000
Diluted (in shares) | 50,195,000 | 51,375,000 | 52,871,000
COMPREHENSIVE INCOME (LOSS): |  |  |
Net income (loss) | $ (8,515) | $ 340,099 | $ 280,372
Net unrealized appreciation on marketable securities, net of taxes |  | 32 | 18
TOTAL COMPREHENSIVE INCOME (LOSS) | (8,515) | 340,131 | 280,390
Flying agreements |  |  |
OPERATING REVENUES: |  |  |
Total operating revenues | 2,060,801 | 2,889,265 | 3,169,520
Lease, airport services and other |  |  |
OPERATING REVENUES: |  |  |
Total operating revenues | 66,305 | 82,698 | 52,159
Aircraft maintenance, materials and repairs |  |  |
OPERATING EXPENSES: |  |  |
Total operating expenses | 618,989 | 514,313 | 556,259
Aircraft fuel |  |  |
OPERATING EXPENSES: |  |  |
Total operating expenses | 61,739 | 119,115 | 117,657
Airport related expenses |  |  |
OPERATING EXPENSES: |  |  |
Total operating expenses | 93,886 | 118,837 | 109,605
Aircraft rentals |  |  |
OPERATING EXPENSES: |  |  |
Total operating expenses | $ 65,316 | $ 71,998 | $ 154,945

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