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Business Segments (Details 2) (USD $) In Thousands | Sep. 30, 2011 | Dec. 31, 2010
--- | --- | ---
Accounts receivable, net: |  |
Accounts receivable, net | $ 2,166,712 | $ 1,386,700
Total assets: |  |
Total assets | 3,616,896 | 2,566,450
Aviation segment |  |
Accounts receivable, net: |  |
Accounts receivable, net | 610,569 | 420,788
Net of allowance for bad debt | 9,765 | 7,363
Total assets: |  |
Total assets | 1,191,791 | 740,563
Marine segment |  |
Accounts receivable, net: |  |
Accounts receivable, net | 1,196,741 | 761,629
Net of allowance for bad debt | 8,850 | 7,761
Total assets: |  |
Total assets | 1,528,468 | 1,000,042
Land segment |  |
Accounts receivable, net: |  |
Accounts receivable, net | 359,402 | 204,283
Net of allowance for bad debt | 6,310 | 5,077
Total assets: |  |
Total assets | 756,037 | 524,592
Corporate |  |
Total assets: |  |
Total assets | $ 140,600 | $ 301,253

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