Financial Data of Business Segments (Details) € in Millions, $ in Millions | Dec. 29, 2020USD ($) | Dec. 29, 2020EUR (€) | Sep. 30, 2021USD ($)AircraftEngines | Mar. 31, 2021USD ($) | Sep. 30, 2020USD ($) | Sep. 30, 2021USD ($)AircraftEngines | Sep. 30, 2020USD ($) | Dec. 31, 2020USD ($) |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] | | | | | | | | |
Interest expense, net | | | $ (49.8) | | $ (48.6) | $ (153.4) | $ (141.5) | |
Provision for Income Taxes, Equity Method Investment | | | 1 | | 24 | 47.8 | 33.1 | |
Lease Income | | | 283.9 | | 273.3 | 852.1 | 813.3 | |
Marine operating revenue | | | 5 | | 5 | 13.7 | 11.6 | |
Other Operating Income | | | 24.6 | | 26.1 | 70.6 | 79.4 | |
Total Revenues | | | 313.5 | | 304.4 | 936.4 | 904.3 | |
Cost of Property Repairs and Maintenance | | | 74.2 | | 76.7 | 225.1 | 244.8 | |
Marine operating expense | | | 3.7 | | 3.6 | 13.8 | 10.9 | |
Depreciation | | | 91.1 | | 83.4 | 271.2 | 245.4 | |
Operating Lease, Expense | | | 9 | | 12.3 | 30.1 | 38.1 | |
Other operating expense | | | 9.7 | | 8.3 | 31.3 | 26 | |
Total Expenses | | | 187.7 | | 184.3 | 571.5 | 565.2 | |
Net gain on asset dispositions | | | 21.9 | | 8.9 | 79.1 | 42.3 | |
Other (expense) income | | | (0.3) | | (1.2) | (9.7) | (12.2) | |
Share of affiliates' earnings (pre-tax) | | | 3.8 | | 46.8 | 26.2 | 93.2 | |
Segment profit (loss) | | | 101.4 | | 126 | 307.1 | 320.9 | |
Net loss from discontinued operations, net of taxes | | | 0 | | (0.3) | 0 | 1.1 | |
Disposition Gains on Owned Assets | | | 14.9 | | 8 | 63.4 | 39.4 | |
Nonoperating Income, Residual Sharing Income | | | 0.8 | | 0.6 | 2.5 | 1.8 | |
Nonremarketing Disposition Gain (Loss) | | | 6.2 | | 0.3 | 13.2 | 1.1 | |
Net income | | | 40.1 | | 47.9 | 82.1 | 133.5 | |
Net Income | | | 40.1 | | 48.2 | 82.1 | 132.4 | |
Income tax benefit | | | 14.4 | | 11.8 | 36.4 | 29.6 | |
Selling, general and administrative | | | 45.9 | | 42 | 140.8 | 125.8 | |
Portfolio Investments and Capital Additions | | | 229.8 | | 249.9 | 893.2 | 641.4 | |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | | | 564.4 | | | 564.4 | | $ 584.7 |
Identifiable assets | | | 9,586.3 | | | 9,586.3 | | 8,937.6 |
Payments to Acquire Businesses, Gross | $ 203.2 | | | | | | | |
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax | | | | | (0.3) | | 3.3 | |
(Loss) Income from Discontinued Operations, Net of Taxes | | | 0 | | 0 | 0 | (2.2) | |
Trifleet Leasing Holding B.V. | | | | | | | | |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] | | | | | | | | |
Payments to Acquire Businesses, Gross | € | | € 165 | | | | | | |
Parent [Member] | | | | | | | | |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] | | | | | | | | |
Income tax benefit | | | 15.4 | | 35.8 | 84.2 | 62.7 | |
Other Business Segments [Member] | | | | | | | | |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] | | | | | | | | |
Interest expense, net | | | (1.5) | | 2.2 | (4.7) | 5.1 | |
Lease Income | | | 6.5 | | 0 | 16.2 | 0 | |
Marine operating revenue | | | 0 | | 0 | 0 | 0 | |
Other Operating Income | | | 2.4 | | 0 | 5.8 | 0 | |
Total Revenues | | | 8.9 | | 0 | 22 | 0 | |
Cost of Property Repairs and Maintenance | | | 1.3 | | 0 | 2.7 | 0 | |
Marine operating expense | | | 0 | | 0 | 0 | 0 | |
Depreciation | | | 2.9 | | 0 | 7.7 | 0 | |
Operating Lease, Expense | | | 0 | | 0 | 0 | 0 | |
Other operating expense | | | 0.7 | | 0 | 2 | 0 | |
Total Expenses | | | 4.9 | | 0 | 12.4 | 0 | |
Net gain on asset dispositions | | | 0.2 | | 0 | 0.6 | 0 | |
Other (expense) income | | | (1) | | (0.6) | (8.8) | (3.3) | |
Share of affiliates' earnings (pre-tax) | | | 0 | | 0 | 0 | 0 | |
Segment profit (loss) | | | 1.7 | | 1.6 | (3.3) | 1.8 | |
Disposition Gains on Owned Assets | | | 0.2 | | 0 | 0.5 | 0 | |
Nonoperating Income, Residual Sharing Income | | | 0 | | 0 | 0 | 0 | |
Nonremarketing Disposition Gain (Loss) | | | 0 | | 0 | 0.1 | 0 | |
Portfolio Investments and Capital Additions | | | 10 | | 0.5 | 19.7 | 2 | |
Identifiable assets | | | 807.4 | | | 807.4 | | 541.3 |
Rail North America [Member] | | | | | | | | |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] | | | | | | | | |
Interest expense, net | | | (32.9) | | (35.7) | (102.5) | (103.5) | |
Lease Income | | | 200.4 | | 208.7 | 611.4 | 630.8 | |
Marine operating revenue | | | 0 | | 0 | 0 | 0 | |
Other Operating Income | | | 19.4 | | 23.4 | 56.4 | 72.5 | |
Total Revenues | | | 219.8 | | 232.1 | 667.8 | 703.3 | |
Cost of Property Repairs and Maintenance | | | 58.9 | | 63.2 | 178.8 | 206.5 | |
Marine operating expense | | | 0 | | 0 | 0 | 0 | |
Depreciation | | | 64.8 | | 65 | 195.7 | 193 | |
Operating Lease, Expense | | | 9 | | 12.3 | 30.1 | 38.1 | |
Other operating expense | | | 6.6 | | 6.6 | 22.6 | 20.8 | |
Total Expenses | | | 139.3 | | 147.1 | 427.2 | 458.4 | |
Net gain on asset dispositions | | | 20.2 | | 7.9 | 74.8 | 39.9 | |
Other (expense) income | | | (1.1) | | (1.1) | (2.9) | (3.2) | |
Share of affiliates' earnings (pre-tax) | | | (0.2) | | 0 | (0.2) | 0 | |
Segment profit (loss) | | | 66.5 | | 56.1 | 209.8 | 178.1 | |
Disposition Gains on Owned Assets | | | 14.4 | | 7.8 | 62.2 | 39.1 | |
Nonoperating Income, Residual Sharing Income | | | 0.2 | | 0.1 | 0.8 | 0.3 | |
Nonremarketing Disposition Gain (Loss) | | | 5.6 | | 0 | 11.8 | 0.5 | |
Portfolio Investments and Capital Additions | | | 178.9 | | 204.1 | 394.4 | 474.6 | |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | | | 0.2 | | | 0.2 | | 0 |
Identifiable assets | | | 6,016 | | | 6,016 | | 5,944.4 |
Rail International [Member] | | | | | | | | |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] | | | | | | | | |
Interest expense, net | | | (10.9) | | (11.9) | (34.2) | (34) | |
Lease Income | | | 68.8 | | 64.5 | 204.7 | 181.9 | |
Marine operating revenue | | | 0 | | 0 | 0 | 0 | |
Other Operating Income | | | 2.7 | | 2.6 | 7.9 | 6.5 | |
Total Revenues | | | 71.5 | | 67.1 | 212.6 | 188.4 | |
Cost of Property Repairs and Maintenance | | | 14 | | 13.5 | 43.6 | 38.3 | |
Marine operating expense | | | 0 | | 0 | 0 | 0 | |
Depreciation | | | 18.5 | | 17.1 | 55.2 | 48.4 | |
Operating Lease, Expense | | | 0 | | 0 | 0 | 0 | |
Other operating expense | | | 1.8 | | 1.6 | 5.5 | 4.9 | |
Total Expenses | | | 34.3 | | 32.2 | 104.3 | 91.6 | |
Net gain on asset dispositions | | | 0.9 | | 0.5 | 2 | 0.8 | |
Other (expense) income | | | (0.2) | | 0.5 | 0 | (5.7) | |
Share of affiliates' earnings (pre-tax) | | | 0 | | 0 | 0 | 0 | |
Segment profit (loss) | | | 27 | | 24 | 76.1 | 57.9 | |
Disposition Gains on Owned Assets | | | 0.3 | | 0.2 | 0.7 | 0.2 | |
Nonoperating Income, Residual Sharing Income | | | 0 | | 0 | 0 | 0 | |
Nonremarketing Disposition Gain (Loss) | | | 0.6 | | 0.3 | 1.3 | 0.6 | |
Portfolio Investments and Capital Additions | | | 40.9 | | 45.3 | 126.1 | 164.5 | |
Identifiable assets | | | 1,732.8 | | | 1,732.8 | | 1,745.8 |
Portfolio Management | | | | | | | | |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] | | | | | | | | |
Interest expense, net | | | (4.5) | | (3.2) | (12) | (9.1) | |
Lease Income | | | 8.2 | | 0.1 | 19.8 | 0.6 | |
Marine operating revenue | | | 5 | | 5 | 13.7 | 11.6 | |
Other Operating Income | | | 0.1 | | 0.1 | 0.5 | 0.4 | |
Total Revenues | | | 13.3 | | 5.2 | 34 | 12.6 | |
Cost of Property Repairs and Maintenance | | | 0 | | 0 | 0 | 0 | |
Marine operating expense | | | 3.7 | | 3.6 | 13.8 | 10.9 | |
Depreciation | | | 4.9 | | 1.3 | 12.6 | 4 | |
Operating Lease, Expense | | | 0 | | 0 | 0 | 0 | |
Other operating expense | | | 0.6 | | 0.1 | 1.2 | 0.3 | |
Total Expenses | | | 9.2 | | 5 | 27.6 | 15.2 | |
Net gain on asset dispositions | | | 0.6 | | 0.5 | 1.7 | 1.6 | |
Other (expense) income | | | 2 | | 0 | 2 | 0 | |
Share of affiliates' earnings (pre-tax) | | | 4 | | 46.8 | 26.4 | 93.2 | |
Segment profit (loss) | | | 6.2 | | 44.3 | 24.5 | 83.1 | |
Disposition Gains on Owned Assets | | | 0 | | 0 | 0 | 0.1 | |
Nonoperating Income, Residual Sharing Income | | | 0.6 | | 0.5 | 1.7 | 1.5 | |
Nonremarketing Disposition Gain (Loss) | | | 0 | | 0 | 0 | 0 | |
Portfolio Investments and Capital Additions | | | 0 | | $ 0 | 353 | $ 0.3 | |
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures | | | 564.2 | | | 564.2 | | 584.7 |
Identifiable assets | | | $ 1,030.1 | | | $ 1,030.1 | | $ 706.1 |
Number of aircraft engines | AircraftEngines | | | 14 | | | 14 | | |
Number of Specialized Gas Vessels | AircraftEngines | | | 5 | | | 5 | | |
Portfolio Management | Rolls-Royce Aircraft Engines | | | | | | | | |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] | | | | | | | | |
Payments to Acquire Property, Plant, and Equipment | | | | $ 352 | | | | |