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Business Segments (Tables) | 6 Months Ended
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Jun. 30, 2018
Segment Reporting [Abstract] |
Schedule of revenue, gross profit and income from operations by segment | Information concerning our revenue, gross profit and income from operations by segment is as follows (in millions):
|  | For the Three Months Ended |  | For the Six Months Ended
|  | June 30, |  | June 30,
Revenue: |  | 2018 |  | 2017 |  | 2018 |  | 2017
Aviation segment |  | $ | 4,900.7 |  |  | $ | 3,508.4 |  |  | $ | 9,193.6 |  |  | $ | 6,825.8 |
Land segment |  | 2,960.2 |  |  | 2,564.0 |  |  | 5,820.9 |  |  | 5,347.4 |
Marine segment |  | 2,289.9 |  |  | 2,013.8 |  |  | 4,317.7 |  |  | 4,107.3 |
|  | $ | 10,150.8 |  |  | $ | 8,086.2 |  |  | $ | 19,332.2 |  |  | $ | 16,280.4 |
Gross profit: |  |  |  |  |  |  |  |
Aviation segment |  | $ | 127.4 |  |  | $ | 110.9 |  |  | $ | 237.3 |  |  | $ | 210.8 |
Land segment |  | 88.6 |  |  | 87.2 |  |  | 190.8 |  |  | 185.0 |
Marine segment |  | 30.2 |  |  | 32.9 |  |  | 61.5 |  |  | 66.6 |
|  | $ | 246.2 |  |  | $ | 231.0 |  |  | $ | 489.6 |  |  | $ | 462.4 |
Income from operations: |  |  |  |  |  |  |  |
Aviation segment |  | $ | 64.2 |  |  | $ | 49.7 |  |  | $ | 112.0 |  |  | $ | 90.2 |
Land segment |  | 10.2 |  |  | 12.2 |  |  | 29.9 |  |  | 33.6 |
Marine segment |  | 7.9 |  |  | 7.2 |  |  | 16.4 |  |  | 15.5 |
|  | 82.3 |  |  | 69.2 |  |  | 158.3 |  |  | 139.3 |
Corporate overhead - unallocated |  | (21.2 | ) |  | (17.9 | ) |  | (40.0 | ) |  | (37.7 | )
|  | $ | 61.1 |  |  | $ | 51.2 |  |  | $ | 118.3 |  |  | $ | 101.6 |
Schedule of accounts receivable, net and total assets by segment | Information concerning our accounts receivable, net and total assets by segment is as follows (in millions):
|  | As of
|  | June 30, |  | December 31,
|  | 2018 |  | 2017
Accounts receivable, net: |  |  |  |
Aviation segment, net of allowance for bad debt of $11.5 and $10.8 as of June 30, 2018 and December 31, 2017, respectively |  | $ | 1,149.7 |  |  | $ | 1,013.0 |
Land segment, net of allowance for bad debt of $4.1 and $6.6 as of June 30, 2018 and December 31, 2017, respectively |  | 882.4 |  |  | 874.7 |
Marine segment, net of allowance for bad debt of $9.8 and $10.4 as of June 30, 2018 and December 31, 2017, respectively |  | 919.7 |  |  | 817.9 |
|  | $ | 2,951.9 |  |  | $ | 2,705.6 |
Total assets: |  |  |  |  |  |
Aviation segment |  | $ | 2,326.8 |  |  | $ | 2,240.4 |
Land segment |  | 2,107.2 |  |  | 2,091.4 |
Marine segment |  | 1,159.9 |  |  | 1,097.1 |
Corporate |  | 163.1 |  |  | 158.9 |
|  | $ | 5,757.0 |  |  | $ | 5,587.8 |

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