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Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2019
Accounting Policies [Abstract] |
Remaining Performance Obligation | The following table includes estimated revenue expected to be recognized in future periods related to performance obligations that are unsatisfied or partially satisfied as of September 30, 2019 and the percentage of the outstanding performance obligations as of September 30, 2019 expected to be delivered during the remainder of 2019:
| Unsatisfied performance obligations at September 30, 2019
| Total Amount |  | Percent expected to be delivered in 2019
| (in millions) |  |
Rail Products Group: |  |  |
Products: |  |  |
External Customers | $ | 1,628.3 |  |  |
Leasing Group | 817.4 |  |  |
| $ | 2,445.7 |  |  | 33 | %
Maintenance Services | $ | 44.9 |  |  | 49 | %
Railcar Leasing and Management Services Group | $ | 90.0 |  |  | 5 | %
Lessee, Operating Lease, Disclosure [Table Text Block] | The following table summarizes the impact of our operating leases on our Consolidated Financial Statements (in millions, except lease term and discount rate):
| Three Months Ended September 30, 2019 |  | Nine Months Ended September 30, 2019
Consolidated Statement of Operations |  |  |
Operating lease expense | $ | 4.0 |  |  | $ | 13.3 |
Short-term lease expense | $ | 0.9 |  |  | $ | 3.5 |
|  |  | September 30, 2019
Consolidated Balance Sheet |  |  |
Right-of-use assets (1) |  | $ | 45.3 |
Lease liabilities (2) |  | $ | 46.0 |
Weighted average remaining lease term |  | 4.9 years |
Weighted average discount rate |  | 4.1 | %
|  |  | Nine Months Ended September 30, 2019
Consolidated Statement of Cash Flows |  |  |
Cash flows from operating activities |  | $ | 13.3 |
Right-of-use assets recognized in exchange for new lease liabilites |  | $ | 8.4 |
(1) Included in other assets in our Consolidated Balance Sheet (2) Included in other liabilities in our Consolidated Balance Sheet
Lessee, Operating Lease, Liability, Maturity [Table Text Block] | Future contractual minimum operating lease liabilities will mature as follows (in millions):
| Leasing Group |  | Non-Leasing Group |  | Total
Remaining three months of 2019 | $ | 3.2 |  |  | $ | 0.9 |  |  | $ | 4.1 |
2020 | 9.5 |  |  | 3.1 |  |  | 12.6 |
2021 | 8.2 |  |  | 2.1 |  |  | 10.3 |
2022 | 7.5 |  |  | 1.8 |  |  | 9.3 |
2023 | 5.5 |  |  | 1.5 |  |  | 7.0 |
Thereafter | 3.3 |  |  | 3.3 |  |  | 6.6 |
Total operating lease payments | $ | 37.2 |  |  | $ | 12.7 |  |  | $ | 49.9 |
Less: Present value adjustment |  |  |  |  | (3.9 | )
Total operating lease liabilities |  |  |  |  | $ | 46.0 |
Leases of Lessor Disclosure [Text Block] | The following table summarizes the impact of our leases on our Consolidated Statement of Operations (in millions):
| Three Months Ended September 30, 2019 |  | Nine Months Ended September 30, 2019
Operating lease revenues | $ | 169.5 |  |  | $ | 506.9 |
Variable operating lease revenues | 12.5 |  |  | 36.6 |
Sales-type lease revenues | 26.3 |  |  | 60.5 |
Interest income on sales-type lease receivables | 0.6 |  |  | 0.9 |
Profit recognized at sales-type lease commencement | 3.7 |  |  | 7.8 |
Lessor, Payments to be Received, Maturity [Table Text Block] | Future contractual minimum lease receivables for sales-type leases will mature as follows (in millions):
Remaining three months of 2019 | $ | 4.6 |
2020 | 15.7 |
2021 | 45.9 |
2022 | — |
2023 | — |
Thereafter | — |
Total | $ | 66.2 |
Less: Unearned interest income | (7.8 | )
Net investment in sales-type leases (1) | $ | 58.4 |
(1) Includes $0.9 million in receivables, net of allowance and $57.5 million in other assets in our Consolidated Balance Sheet Future contractual minimum revenues for operating leases will mature as follows (in millions):
Remaining three months of 2019 | $ | 149.4 |
2020 | 521.3 |
2021 | 413.0 |
2022 | 314.8 |
2023 | 217.1 |
Thereafter | 388.2 |
Total | $ | 2,003.8 |
Schedule of Product Warranty Liability [Table Text Block] | The changes in the accruals for warranties for the three and nine months ended September 30, 2019 and 2018 are as follows:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
| (in millions)
Beginning balance | $ | 8.3 |  |  | $ | 10.5 |  |  | $ | 7.4 |  |  | $ | 10.1 |
Warranty costs incurred | (1.7 | ) |  | (1.1 | ) |  | (3.2 | ) |  | (2.9 | )
Warranty originations and revisions | 3.2 |  |  | (2.1 | ) |  | 5.8 |  |  | (0.2 | )
Warranty expirations | — |  |  | (0.1 | ) |  | (0.2 | ) |  | 0.2 |
Ending balance | $ | 9.8 |  |  | $ | 7.2 |  |  | $ | 9.8 |  |  | $ | 7.2 |

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- Definition Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249 + Details
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