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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, 2020 USD ($) | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2020 USD ($) segment | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |
Number of reportable operating business segments | segment |  |  |  |  |  |  |  |  | 3 |  |
Revenue: |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 4,702.1 | $ 4,482.7 | $ 3,158.3 | $ 8,015.2 | $ 9,358.1 | $ 9,322.7 | $ 9,459.4 | $ 8,678.8 | $ 20,358.3 | $ 36,819.0 | $ 39,750.3
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Gross profit | $ 165.2 | $ 214.0 | $ 213.9 | $ 258.7 | $ 286.6 | $ 305.7 | $ 268.6 | $ 251.1 | 851.8 | 1,112.0 | 1,018.5
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | 137.9 | 299.7 | 259.7
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 85.8 | 87.4 | 81.5
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 51.3 | 80.9 | 72.3
Restructuring charges |  |  |  |  |  |  |  |  | 10.3 | 19.7 | 17.1
Aviation segment |  |  |  |  |  |  |  |  |  |  |
Revenue: |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 8,179.6 | 18,479.5 | 19,119.7
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Gross profit |  |  |  |  |  |  |  |  | 352.9 | 551.6 | 507.8
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 31.5 | 28.5 | 27.5
Land segment |  |  |  |  |  |  |  |  |  |  |
Revenue: |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 6,663.1 | 10,280.9 | 11,381.1
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Gross profit |  |  |  |  |  |  |  |  | 347.6 | 378.9 | 364.9
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 45.3 | 48.0 | 46.5
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Restructuring charges |  |  |  |  |  |  |  |  |  | 19.7 |
Marine segment |  |  |  |  |  |  |  |  |  |  |
Revenue: |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 5,515.7 | 8,058.5 | 9,249.5
Gross profit: |  |  |  |  |  |  |  |  |  |  |
Gross profit |  |  |  |  |  |  |  |  | 151.4 | 181.5 | 145.8
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 3.8 | 4.5 | 2.2
Operating Segments |  |  |  |  |  |  |  |  |  |  |
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | 215.6 | 406.1 | 336.3
Operating Segments | Aviation segment |  |  |  |  |  |  |  |  |  |  |
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | 84.5 | 283.9 | 250.6
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 17.6 | 23.0 | 19.7
Operating Segments | Land segment |  |  |  |  |  |  |  |  |  |  |
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | 72.6 | 55.0 | 47.8
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 12.5 | 26.9 | 30.9
Operating Segments | Marine segment |  |  |  |  |  |  |  |  |  |  |
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | 58.5 | 67.1 | 37.8
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | 0.8 | 28.3 | 2.9
Corporate |  |  |  |  |  |  |  |  |  |  |
Income from operations: |  |  |  |  |  |  |  |  |  |  |
Income from operations |  |  |  |  |  |  |  |  | (77.8) | (106.4) | (76.6)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |
Depreciation and amortization |  |  |  |  |  |  |  |  | 5.2 | 6.4 | 5.3
Capital expenditures: |  |  |  |  |  |  |  |  |  |  |
Total capital expenditures |  |  |  |  |  |  |  |  | $ 20.4 | $ 2.7 | $ 18.8

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