Railcar Leasing and Management Services Group - Selected consolidating financial information for the Leasing Group - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Consolidating Financial Information
Cash, cash equivalents, and short-term marketable securities	$ 1,098.1	$ 798.1
Property, plant, and equipment, net	6,134.7	5,966.8
Restricted cash	195.2	178.2
Debt:
Recourse	878.2	881.5
Less: unamortized discount	(8.5)	(27.1)
Less: unamortized debt issuance costs	(2.9)	(3.8)
Recourse, net of unamortized discount and unamortized debt issuance costs	866.8	850.6
Non-recourse	2,401.2	2,232.4
Less: unamortized debt issuance costs	(25.6)	(26.4)
Non-recourse debt, net of unamortized debt issuance costs	2,375.6	2,206.0
Total debt	3,242.4	3,056.6
Net_deferred_tax_liabilities_(assets)	723.9	1,057.0
Leasing Group
Debt:
Non-recourse debt, net of unamortized debt issuance costs	2,375.6	2,206.0
Operating Segments
Consolidating Financial Information
Property, plant, and equipment, net	6,935.4	6,764.9
Intersegment
Consolidating Financial Information
Property, plant, and equipment, net	(800.7)	(798.1)
Manufacturing/Corporate
Consolidating Financial Information
Property, plant, and equipment, net	972.7	961.7
Manufacturing/Corporate | Operating Segments
Consolidating Financial Information
Property, plant, and equipment, net	972.7	961.7
Manufacturing/Corporate | Operating Segments | Manufacturing/Corporate
Consolidating Financial Information
Cash, cash equivalents, and short-term marketable securities	1,094.8	790.9
Restricted cash	0.1	0.1
Debt:
Recourse	849.9	849.4
Less: unamortized discount	(8.5)	(27.1)
Less: unamortized debt issuance costs	(2.9)	(3.7)
Recourse, net of unamortized discount and unamortized debt issuance costs	838.5	818.6
Non-recourse	0.0	0.0
Less: unamortized debt issuance costs	0.0	0.0
Non-recourse debt, net of unamortized debt issuance costs	0.0	0.0
Total debt	838.5	818.6
Net_deferred_tax_liabilities_(assets)	69.4	98.4
Partially-owned subsidiaries
Consolidating Financial Information
Restricted cash	62.9	78.4
Debt:
Non-recourse debt, net of unamortized debt issuance costs	1,350.8	1,366.0
Partially-owned subsidiaries | Leasing Group
Debt:
Non-recourse	1,365.3	1,381.0
Less: unamortized debt issuance costs	(14.5)	(15.0)
Non-recourse debt, net of unamortized debt issuance costs	1,350.8	1,366.0
Partially-owned subsidiaries | Operating Segments | Leasing Group
Consolidating Financial Information
Cash, cash equivalents, and short-term marketable securities	0.0	0.0
Property, plant, and equipment, net	1,822.7	1,879.6
Restricted cash	62.9	78.4
Debt:
Recourse	0.0	0.0
Less: unamortized discount	0.0	0.0
Less: unamortized debt issuance costs	0.0	0.0
Recourse, net of unamortized discount and unamortized debt issuance costs	0.0	0.0
Non-recourse	1,365.3	1,381.0
Less: unamortized debt issuance costs	(14.5)	(15.0)
Non-recourse debt, net of unamortized debt issuance costs	1,350.8	1,366.0
Total debt	1,350.8	1,366.0
Net_deferred_tax_liabilities_(assets)	0.8	2.0
Wholly-owned subsidiaries
Debt:
Non-recourse debt, net of unamortized debt issuance costs	1,024.8	840.0
Wholly-owned subsidiaries | Leasing Group
Debt:
Non-recourse	1,035.9	851.4
Less: unamortized debt issuance costs	(11.1)	(11.4)
Non-recourse debt, net of unamortized debt issuance costs	1,024.8	840.0
Wholly-owned subsidiaries | Operating Segments | Leasing Group
Consolidating Financial Information
Cash, cash equivalents, and short-term marketable securities	3.3	7.2
Property, plant, and equipment, net	4,140.0	3,923.6
Restricted cash	132.2	99.7
Debt:
Recourse	28.3	32.1
Less: unamortized discount	0.0	0.0
Less: unamortized debt issuance costs	0.0	(0.1)
Recourse, net of unamortized discount and unamortized debt issuance costs	28.3	32.0
Non-recourse	1,035.9	851.4
Less: unamortized debt issuance costs	(11.1)	(11.4)
Non-recourse debt, net of unamortized debt issuance costs	1,024.8	840.0
Total debt	1,053.1	872.0
Net_deferred_tax_liabilities_(assets)	$ 653.7	$ 956.6