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Business Segments (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2011 | Jun. 30, 2010 | Jun. 30, 2011 | Jun. 30, 2010
Business Segments |  |  |  |
Number of reportable operating business segments |  |  | 3 |
Revenue: |  |  |  |
Total revenue | $ 8,708,709 | $ 4,397,275 | $ 15,788,115 | $ 8,315,296
Gross profit: |  |  |  |
Gross profit | 165,102 | 107,569 | 301,870 | 206,387
Income from operations: |  |  |  |
Income from operations | 66,103 | 45,064 | 121,628 | 87,189
Operating Segments |  |  |  |
Income from operations: |  |  |  |
Income from operations | 77,413 | 54,453 | 143,601 | 103,503
Aviation segment |  |  |  |
Revenue: |  |  |  |
Total revenue | 3,364,829 | 1,691,042 | 6,011,421 | 3,150,766
Gross profit: |  |  |  |
Gross profit | 82,027 | 52,887 | 152,155 | 101,262
Income from operations: |  |  |  |
Income from operations | 37,624 | 28,701 | 75,794 | 55,395
Marine segment |  |  |  |
Revenue: |  |  |  |
Total revenue | 3,532,983 | 2,276,651 | 6,532,402 | 4,375,263
Gross profit: |  |  |  |
Gross profit | 50,674 | 43,204 | 90,889 | 82,593
Income from operations: |  |  |  |
Income from operations | 25,763 | 23,972 | 43,118 | 43,980
Land segment |  |  |  |
Revenue: |  |  |  |
Total revenue | 1,810,897 | 429,582 | 3,244,292 | 789,267
Gross profit: |  |  |  |
Gross profit | 32,401 | 11,478 | 58,826 | 22,532
Income from operations: |  |  |  |
Income from operations | 14,026 | 1,780 | 24,689 | 4,128
Corporate |  |  |  |
Income from operations: |  |  |  |
Corporate overhead | $ 11,310 | $ 9,389 | $ 21,973 | $ 16,314

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- Definition Aggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 5 -Section 03 -Paragraph 1 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 + Details
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