Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2016 USD ($)
Goodwill
Balance at the beginning of the period	$ 675.8	[1]
Additions	2.3
Foreign exchange and other adjustments	(5.9)
Balance at the end of the period	672.2	[1]
Aviation Segment
Goodwill
Balance at the beginning of the period	173.7
Balance at the end of the period	173.7
Land Segment
Goodwill
Balance at the beginning of the period	430.7
Additions	2.3
Foreign exchange and other adjustments	(6.6)
Balance at the end of the period	426.4
Marine segment
Goodwill
Balance at the beginning of the period	71.4
Foreign exchange and other adjustments	0.7
Balance at the end of the period	$ 72.1

[1] Amounts may not add due to rounding