Railcar Leasing and Management Services Group (Details 4) - Railcars leased from independent owner trusts - Railcar Leasing and Management Services Group $ in Millions	Sep. 30, 2015 USD ($)
Future operating lease obligations
Remaining three months of 2015	$ 7.4
2016	29.3
2017	29.2
2018	29.2
2019	28.8
Thereafter	170.2
Total	294.1
Future contractual minimum rental revenues
Remaining three months of 2015	13.2
2016	47.4
2017	38.9
2018	29.2
2019	20.1
Thereafter	35.0
Total	$ 183.8