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Business Segments, Geographic Information, and Major Customers - Income Statement Items (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) | Mar. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Sep. 30, 2014 USD ($) | Jun. 30, 2014 USD ($) | Mar. 31, 2014 USD ($) | Dec. 31, 2015 USD ($) item | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Revenue: |  |  |  |  |  |  |  |  |  |  |
Total revenue | $ 6,731.9 | $ 7,810.7 | $ 8,496.4 | $ 7,340.7 | $ 9,779.5 | $ 11,713.4 | $ 11,342.5 | $ 10,550.9 | $ 30,379.7 | $ 43,386.4 | $ 41,561.9
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Gross profit | $ 228.0 | $ 226.7 | $ 190.4 | $ 215.4 | $ 219.5 | $ 214.6 | $ 191.5 | $ 188.0 | 860.5 | 813.6 | 752.8
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | 247.2 | 269.1 | 264.5
Depreciation and amortization: |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 63.4 | 59.4 | 44.7
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 48.4 | 51.8 | 82.7
Aviation Segment |  |  |  |  |  |  |  |  |  |  |
Revenue: |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 11,738.2 | 17,268.8 | 16,087.6
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Gross profit |  |  |  |  |  |  |  |  | 361.4 | 321.6 | 327.2
Marine segment |  |  |  |  |  |  |  |  |  |  |
Revenue: |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 9,367.2 | 13,843.3 | 14,790.3
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Gross profit |  |  |  |  |  |  |  |  | 189.6 | 205.6 | 177.1
Land Segment |  |  |  |  |  |  |  |  |  |  |
Revenue: |  |  |  |  |  |  |  |  |  |  |
Total revenue |  |  |  |  |  |  |  |  | 9,274.3 | 12,274.3 | 10,684.0
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Gross profit |  |  |  |  |  |  |  |  | $ 309.5 | 286.4 | 248.5
Operating Segments |  |  |  |  |  |  |  |  |  |  |
Information concerning revenue, gross profit and income from operations by segment |  |  |  |  |  |  |  |  |  |  |
Number of reportable operating business segments | item |  |  |  |  |  |  |  |  | 3 |  |
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | $ 308.1 | 322.6 | 309.5
Operating Segments | Aviation Segment |  |  |  |  |  |  |  |  |  |  |
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | 131.7 | 142.3 | 150.9
Depreciation and amortization: |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 22.5 | 15.4 | 15.9
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 13.4 | 9.0 | 5.8
Operating Segments | Marine segment |  |  |  |  |  |  |  |  |  |  |
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | 73.0 | 90.0 | 73.8
Depreciation and amortization: |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 6.4 | 5.6 | 5.4
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 8.0 | 13.9 | 17.3
Operating Segments | Land Segment |  |  |  |  |  |  |  |  |  |  |
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | 103.4 | 90.3 | 84.8
Depreciation and amortization: |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 30.8 | 34.7 | 20.8
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 16.4 | 16.0 | 54.3
Corporate |  |  |  |  |  |  |  |  |  |  |
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | 60.9 | 53.5 | 45.0
Depreciation and amortization: |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 3.7 | 3.7 | 2.6
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | $ 10.6 | $ 12.9 | $ 5.3

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