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Railcar Leasing and Management Services Group - Schedule of proceeds from leased railcars (Details) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($)
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Proceeds from sale leased railcars |  | $ 200.9 | $ 85.6
Sales-type Lease, Revenue | $ 32.3 | 34.2 |
Payments to Acquire Equipment on Lease |  | $ 218.4 |
Railcars Acquired | 6,779 | 6,779 |
Railcar Leasing and Management Services Group | Railcars owned one year or less at the time of sale |  |  |
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Proceeds from sale leased railcars |  | $ 101.0 | 29.2
Railcar Leasing and Management Services Group | Railcars owned more than one year at the time of sale |  |  |
Property Subject to or Available for Operating Lease [Line Items] |  |  |
Proceeds from sale leased railcars |  | $ 99.9 | $ 56.4

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