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Goodwill (Tables) | 3 Months Ended
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Mar. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of changes in goodwill | The following table provides the components of and changes in the carrying amount of goodwill (in millions):
|  | Aviation |  | Land |  | Total
Balance as of December 31, 2017 |  | $ | 326.9 |  |  | $ | 518.5 |  |  | $ | 845.5 |
Additions |  | — |  |  | 13.7 |  |  | 13.7 |
Foreign exchange and other adjustments |  | (1.4 | ) |  | 9.1 |  |  | 7.7 |
Balance as of March 31, 2018 |  | $ | 325.5 |  |  | $ | 541.3 |  |  | $ | 866.9 |

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- Definition Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13854-109267 + Details
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