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Railcar Leasing and Management Services Group - Future contractual minimum rental revenues on leases (Details) - Railcar Leasing and Management Services Group [Member]
$ in Millions
Jun. 30, 2023
USD ($)
Future contractual minimum rental revenue  
Remaining six months of 2023 $ 340.7 [1]
2024 588.8 [1]
2025 475.3 [1]
2026 360.1 [1]
2027 261.4 [1]
Thereafter 400.0 [1]
Total 2,426.3 [1]
Railroad Transportation Equipment  
Future contractual minimum rental revenue  
Remaining six months of 2023 335.6
2024 582.7
2025 471.1
2026 357.6
2027 260.6
Thereafter 399.8
Total $ 2,407.4
[1] Total contractual minimum rental revenues on operating leases relates to our wholly-owned and partially-owned subsidiaries and sub-lease rental revenues associated with the Leasing Group's operating lease obligations.