Railcar Leasing and Management Services Group (Details 6) - Railcar Leasing and Management Services Group - Other Third Parties $ in Millions	Dec. 31, 2015 USD ($)
Future operating lease obligations
2016	$ 12.8
2017	12.1
2018	12.0
2019	9.5
2020	7.7
Thereafter	21.1
Total	75.2
Future contractual minimum rental revenues
2016	19.5
2017	12.6
2018	7.4
2019	4.0
2020	2.1
Thereafter	4.1
Total	$ 49.7