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Acquisitions, Assets and Liabilities Held for Sale (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2016 USD ($) item | Dec. 31, 2015 USD ($)
Current assets held for sale |  |  |
Current assets held for sale | [1] | $ 5.7 | $ 5.5
Non-current assets held for sale |  |  |
Non-current assets held for sale | [1] | 33.5 | 36.5
Current liabilities held for sale |  |  |
Current liabilities held for sale | [1] | 5.5 | 5.6
Non-current liabilities held for sale |  |  |
Non-current liabilities held for sale | [1] | $ 5.1 | $ 5.0
Acquisitions 2016 |  |  |
Acquisitions |  |  |
Number of airports to be acquired | item |  | 83 |
Land Segment | Acquisitions 2016 |  |  |
Acquisitions |  |  |
Number of businesses acquired | item |  | 3 |
[1] | Amounts may not add due to rounding

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