| Long Term Debt Before Unamortized Discount | $8.2B | $8B | — | $7.9B | $8.7B | $8.8B | — | $8.8B |
| Thereafter through 2035 | $3.7B | $4B | — | $3.8B | $4B | $4.4B | — | $4.5B |
| Line of Credit Maximum Borrowing Capacity | $4.4B | $4.4B | — | $4.4B | $4.4B | $4.4B | — | $4.4B |
| Committed Revolving Credit Facilities | $4.4B | $4.4B | — | $4.4B | $4.4B | $4.4B | — | $4.4B |
| Total intangible assets, gross | $3.8B | $3.8B | $3.8B | $3.8B | $3.9B | $3.9B | $4B | $4B |
| Finite-Lived Intangible Assets, Accumulated Amortization | $1.4B | $1.4B | $1.4B | $1.5B | $1.5B | $1.5B | $1.5B | $1.5B |
| 2028 | $1.5B | $1.6B | — | $550.7M | $596.4M | $597.3M | — | $1.3B |
| Net Investment In Lease And Loans Receivable, Before Allowance For Credit Loss | $667.7M | $657.1M | $798.3M | $866.9M | $1.1B | $1.1B | $1.2B | $1.2B |
| 2029 | $537.6M | $570.2M | — | $1.2B | $1.3B | $1.3B | — | $1.1B |
| 2030 | $1.2B | $1.2B | — | $1.2B | $1.8B | $1.5B | — | $1B |
| 2027 | $707.3M | $709.5M | — | $981.7M | $1B | $1B | — | $585.2M |
| Common stock, shares authorized (in shares) | $450M | $450M | $450M | $450M | $450M | $450M | $450M | $450M |
| Direct Financing Lease, Net Investment In Lease, Excluding Deferred Selling Profit | $500.7M | $476.7M | $452.1M | $423.2M | $407.5M | $399M | $391.4M | $381.3M |
| Remainder of 2026 | $603M | $7.3M | — | $150.9M | $46.7M | $2.5M | — | $353.4M |
| Remainder of Fiscal Year 2024 | $603M | $7.3M | — | $150.9M | $46.7M | $2.5M | — | $353.4M |
| Equity method investments (Note 11) | $356.2M | $299.5M | $301.1M | $304.8M | $311.4M | $311.2M | $310.2M | $309.3M |
| Direct Financing Lease, Net Investment in Lease | $320.7M | $303.7M | $277.7M | $269.5M | $268.1M | $264.7M | $267.5M | $265.2M |
| Direct Financing Lease Unguaranteed Residual Asset | $302.7M | $284.5M | $273.5M | $254M | $245.4M | $244.8M | $244.9M | $243.3M |
| Common stock, shares issued (in shares) | $218.8M | $218.8M | $218.8M | $219M | $219M | $219.1M | $219.1M | $222.7M |
| Common Stock, Shares, Outstanding | $218.8M | $218.8M | $218.8M | $219M | $219M | $219.1M | $219.1M | $222.7M |
| Intangible Liabilities, Gross | $202.4M | $204.1M | $198M | $198M | $200.5M | $203.2M | $202.3M | $185.1M |
| Deferred income taxes | $155.7M | $160.5M | $147.5M | $154.9M | $168.2M | $164.8M | $151.8M | $151.7M |
| Direct Financing Lease Lease Receivable | $198M | $192.2M | $178.6M | $169.2M | $162.1M | $154.2M | $146.5M | $138.1M |
| Direct Financing Lease Deferred Selling Profit | $168.3M | $162.7M | $150.4M | $141.2M | $134.3M | $127.1M | $120.1M | $112.6M |
| Unfunded commitment | $92.6M | $80.6M | $72.1M | $102.1M | $83.2M | $59.4M | $125.3M | $108M |
| Deferred compensation obligation | $78.4M | $78.4M | $78.5M | $97M | $97M | $80.2M | $80.2M | $100.5M |
| Intangible Liabilities, Net | $128.7M | $125.9M | $119.8M | $114.4M | $111.8M | $111.3M | $104.1M | $98.3M |
| Finite Lived Intangible Liabilities Accumulated Amortization | $73.7M | $78.1M | $78.1M | $83.6M | $88.7M | $91.8M | $98.3M | $86.8M |
| Amount outstanding under the credit facility | $15M | $229.6M | $55.4M | $205.1M | $660.9M | $354.8M | $435.4M | $62M |
| Preferred Stock, Shares Authorized | $50M | $50M | $50M | $50M | $50M | $50M | $50M | $50M |
| Debt Instrument, Unamortized Discount (Premium), Net | $35.6M | $35.7M | — | $41.4M | $40.5M | $41.7M | — | $49.4M |
| Sales Type Lease, Net Investment In Lease, Excluding Deferred Selling Profit | $21.5M | $40.1M | — | — | — | — | $48.8M | $48.6M |
| Secured loans receivable | $15M | $0 | $31.9M | $32.7M | $33.8M | $34.7M | $35.8M | $38.3M |
| Sales-type lease, lease receivable | $21.5M | $40.1M | — | — | — | — | $38.3M | $38.1M |
| Sales Type Lease Deferred Selling Profit | $575K | $343K | — | — | — | — | $38.2M | $37.9M |
| Noncontrolling interests in subsidiaries | $6.6M | $6.5M | $4.4M | $4.6M | $13.5M | $16.4M | $15.9M | $16M |
| Fair Value Measurement Disclosure | $17.3M | $8.3M | $23.5M | $10.6M | $1.8M | $1.9M | $1.8M | $11.5M |
| Gross Assets/Liabilities | $17.3M | $8.3M | $23.5M | $10.6M | $1.8M | $1.9M | $1.8M | $11.5M |
| Derivative, gross, assets | $17.3M | $8.3M | $23.5M | $10.6M | $1.8M | $1.9M | $1.8M | $11.5M |
| Sales-Type Lease, Net Investment in Lease, before Allowance for Credit Loss | $20.9M | $39.8M | — | — | — | — | $10.6M | $10.7M |
| Assets Held-for-sale, Not Part of Disposal Group, Accumulated Depreciation | $3.7M | $15M | $0 | $9.5M | $4.1M | $4.9M | $414K | $10.7M |
| Estimated residual value of leased assets (unguaranteed) | — | — | — | — | — | — | $10.5M | $10.5M |
| Assets Needed for Immediate Settlement, Aggregate Fair Value | $800K | $5.5M | $900K | $2.3M | $29.2M | $20.8M | $18.6M | $8.4M |
| Derivative, Net Liability Position, Aggregate Fair Value | $800K | $5.5M | $900K | $2.3M | $29M | $20.6M | $18.5M | $8.4M |
| Derivative Asset, Subject to Master Netting Arrangement, Liability Offset | $785K | $5.5M | $898K | $2.3M | $29M | $20.6M | $18.4M | $8.4M |
| Interest Rate Derivatives, at Fair Value, Net | — | — | — | — | — | — | — | $6.9M |
| Credit Derivative Maximum Exposure | $16.7M | $4.6M | — | $9.8M | $200K | $200K | — | $6.8M |
| Credit Derivative, Maximum Exposure, Undiscounted | $16.7M | $4.6M | — | $9.8M | $200K | $200K | — | $6.8M |
| Foreign Currency Cash Flow Hedge Derivative At Fair Value Net | $16M | $4M | — | $8.2M | -$20.8M | -$15.6M | — | -$3.8M |
| Direct Financing Lease, Net Investment in Lease, Allowance for Credit Loss | $11.6M | $10.4M | $24.1M | $12.4M | $5.1M | $7.2M | $3.7M | $3.5M |
| Variable interest entities, count | 12.00 | 9.00 | 14.00 | 15.00 | 17.00 | 11.00 | — | 10.00 |
| Number Of Jointly Owned Investments | 8.00 | 7.00 | — | 7.00 | 9.00 | 9.00 | — | 8.00 |
| Variable interest entities consolidated, count | 7.00 | 5.00 | 9.00 | 10.00 | 12.00 | 7.00 | — | 6.00 |
| Variable interest entities unconsolidated, count | 5.00 | 4.00 | 5.00 | 5.00 | 5.00 | 4.00 | — | 4.00 |
| Number Of Jointly Owned Investments, Equity Method Investments | 4.00 | 3.00 | — | 3.00 | 3.00 | 3.00 | — | 3.00 |
| Weighted Average Interest Rate (as a percent) | $0 | $0 | — | $0 | $0 | $0.1 | — | $0 |
| Common stock, par value (in dollars per share) | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Preferred Stock, Par or Stated Value Per Share | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Preferred Stock, Shares Issued | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |