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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Income Statement [Abstract] |  |  |  |
Passenger ticket revenues |  | $ 6,313,170 | $ 6,149,323 | $ 6,058,821
Onboard and other revenues |  | 2,464,675 | 2,347,078 | 2,240,253
Total revenues |  | 8,777,845 | 8,496,401 | 8,299,074
Cruise operating expenses: |  |  |  |
Commissions, transportation and other |  | 1,363,170 | 1,349,677 | 1,400,778
Onboard and other |  | 495,552 | 493,558 | 553,104
Payroll and related |  | 852,990 | 882,891 | 861,775
Food |  | 492,857 | 485,673 | 480,009
Fuel |  | 681,118 | 713,676 | 795,801
Other operating |  | 1,010,892 | 1,090,064 | 1,007,926
Total cruise operating expenses |  | 4,896,579 | 5,015,539 | 5,099,393
Marketing, selling and administrative expenses |  | 1,186,016 | 1,108,742 | 1,086,504
Depreciation and amortization expenses |  | 951,194 | 894,915 | 827,008
Impairment of Pullmantur related assets |  | 0 | 0 | 411,267
Total operating costs |  | 7,033,789 | 7,019,196 | 7,424,172
Operating Income |  | 1,744,056 | 1,477,205 | 874,902
Other income (expense): |  |  |  |
Interest income |  | 30,101 | 20,856 | 12,025
Interest expense, net of interest capitalized |  | (299,982) | (307,370) | (277,725)
Equity investment income |  | 156,247 | 128,350 | 81,026
Other expense | [1] | (5,289) | (35,653) | (24,445)
Total other income (expense) |  | (118,923) | (193,817) | (209,119)
Net Income |  | $ 1,625,133 | $ 1,283,388 | $ 665,783
Basic Earnings per Share: |  |  |  |
Net income (in dollars per share) |  | $ 7.57 | $ 5.96 | $ 3.03
Diluted Earnings per Share: |  |  |  |
Net income (in dollars per share) |  | $ 7.53 | $ 5.93 | $ 3.02
Comprehensive Income (Loss) |  |  |  |
Net income |  | $ 1,625,133 | $ 1,283,388 | $ 665,783
Other comprehensive income (loss): |  |  |  |
Foreign currency translation adjustments |  | 17,307 | 2,362 | (30,152)
Change in defined benefit plans |  | (5,583) | (1,636) | 4,760
Gain (loss) on cash flow derivative hedges |  | 570,495 | 411,223 | (406,047)
Total other comprehensive income (loss) |  | 582,219 | 411,949 | (431,439)
Comprehensive Income |  | $ 2,207,352 | 1,695,337 | 234,344
Loss from elimination of reporting lag of subsidiary |  |  | $ (21,700) |
Deferred income tax expense (benefit) |  |  |  | $ 12,000
[1] | Including a $21.7 million loss related to the 2016 elimination of the Pullmantur reporting lag and a net deferred tax benefit of $12.0 million related to the 2015 Pullmantur impairment.

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- Definition Onboard and other expenses consist of the direct costs associated with onboard and other revenues. These costs include the cost of products sold onboard our ships, vacation protection insurance premiums, costs associated with pre- and post-cruise tours and related credit card fees. These costs also include minimal costs associated with concession revenues, as the costs are mostly incurred by third-party concessionaires. + References No definition available. + Details
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- Definition Commissions, transportation and other expenses consist of those costs directly associated with passenger ticket revenues, including travel agent commissions, air and other transportation expenses, port costs that vary with passenger head counts and related credit card fees. + References No definition available. + Details
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- Definition Onboard and other revenues consist primarily of revenues from the sale of goods and/or services onboard our ships not included in passenger ticket prices, cancellation fees, sales of vacation protection insurance, pre- and post-cruise tours, land-based tours and hotel and air packages. Also included are revenues we receive from independent third party concessionaires that pay us a percentage of their revenues in exchange for the right to provide selected goods and/or services onboard our ships. + References No definition available. + Details
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- Definition Amount, after tax and reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=84228862&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (i-k) -URI http://asc.fasb.org/extlink&oid=84228862&loc=SL7669646-108580 + Details
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- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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