Acquisitions - Narrative (Details) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
|
Mar. 31, 2018
acquisition
|
Mar. 31, 2017
USD ($)
acquisition
|
Mar. 31, 2016
airport
|
|
| Acquisitions 2017 | |||
| Acquisitions | |||
| Number of businesses acquired | acquisition | 1 | ||
| Goodwill anticipated to be deductible for tax purposes | $ | $ 25.9 | ||
| Acquisitions 2017 | Customer relationships | |||
| Acquisitions | |||
| Identifiable intangible assets | $ | $ 43.0 | ||
| Weighted average amortizable lives of identifiable intangible assets | 6 years 4 months 24 days | ||
| Acquisitions 2017 | Land segment | |||
| Acquisitions | |||
| Number of businesses acquired | acquisition | 2 | ||
| Aviation fueling operations of certain ExxonMobil affiliates | |||
| Acquisitions | |||
| Number of airports to be acquired (more than) | airport | 80 | ||