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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) shares in Thousands, $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
OPERATING REVENUES: |  |  |
Passenger | $ 3,126,708 | $ 3,051,414 | $ 3,030,023
Ground handling and other | 77,560 | 69,792 | 65,540
Total operating revenues | 3,204,268 | 3,121,206 | 3,095,563
OPERATING EXPENSES: |  |  |
Salaries, wages and benefits | 1,196,227 | 1,211,380 | 1,203,312
Aircraft maintenance, materials and repairs | 579,463 | 569,306 | 604,863
Depreciation and amortization | 292,768 | 284,969 | 264,507
Aircraft rentals | 215,807 | 262,602 | 273,696
Aircraft fuel | 162,653 | 122,284 | 118,124
Ground handling services | 69,848 | 72,659 | 82,694
Special items |  | 465,649 |
Other operating expenses | 299,303 | 305,041 | 313,852
Total operating expenses | 2,816,069 | 3,293,890 | 2,861,048
OPERATING INCOME (LOSS) | 388,199 | (172,684) | 234,515
OTHER INCOME (EXPENSE): |  |  |
Interest income | 4,509 | 2,143 | 1,997
Interest expense | (104,925) | (78,177) | (75,850)
Other, net | 400 | (94) | 33,660
Total other expense, net | (100,016) | (76,128) | (40,193)
INCOME (LOSS) BEFORE INCOME TAXES | 288,183 | (248,812) | 194,322
PROVISION (BENEFIT) FOR INCOME TAXES | (140,724) | (87,226) | 76,505
NET INCOME (LOSS) | $ 428,907 | $ (161,586) | $ 117,817
BASIC EARNINGS (LOSS) PER SHARE (in dollars per share) | $ 8.28 | $ (3.14) | $ 2.31
DILUTED EARNINGS (LOSS) PER SHARE (in dollars per share) | $ 8.08 | $ (3.14) | $ 2.27
Weighted average common shares: |  |  |
Basic (in shares) | 51,804 | 51,505 | 51,077
Diluted (in shares) | 53,100 | 51,505 | 51,825
COMPREHENSIVE INCOME (LOSS): |  |  |
Net income (loss) | $ 428,907 | $ (161,586) | $ 117,817
Net unrealized appreciation on marketable securities, net of taxes | 21 | 189 | 29
TOTAL COMPREHENSIVE INCOME (LOSS) | $ 428,928 | $ (161,397) | $ 117,846

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