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Business Segments - Balance Sheet Items (Details) - USD ($) $ in Millions | Mar. 31, 2020 | Jan. 01, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Accounts receivable, net: |  |  |
Accounts receivable, net | $ 1,985.1 |  | $ 2,891.9
Allowance for credit losses | 56.1 | $ 46.6 | 35.5
Total assets: |  |  |
Total assets | 5,498.9 |  | 5,992.4
Aviation segment |  |  |
Accounts receivable, net: |  |  |
Accounts receivable, net | 606.5 |  | 1,098.2
Allowance for credit losses | 22.2 |  | 14.6
Land segment |  |  |
Accounts receivable, net: |  |  |
Accounts receivable, net | 728.1 |  | 863.2
Allowance for credit losses | 8.3 |  | 2.8
Marine segment |  |  |
Accounts receivable, net: |  |  |
Accounts receivable, net | 650.5 |  | 930.5
Allowance for credit losses | 22.4 |  | 18.0
Operating Segments | Aviation segment |  |  |
Total assets: |  |  |
Total assets | 2,215.2 |  | 2,416.5
Operating Segments | Land segment |  |  |
Total assets: |  |  |
Total assets | 2,115.9 |  | 2,089.4
Operating Segments | Marine segment |  |  |
Total assets: |  |  |
Total assets | 1,059.3 |  | 1,189.7
Corporate |  |  |
Total assets: |  |  |
Total assets | $ 108.5 |  | $ 296.8

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