| Loans Receivable Fair Value Disclosure | $21.9B | $20.5B | $18.3B | $18.3B | $18.9B | $17.4B | $17.9B | $17.3B |
| Net loan exposure | $20.8B | $19.3B | $17B | $17.8B | $18.4B | $16.8B | $16.8B | $16.4B |
| Long-term debt, gross | $16B | $14.9B | — | $13.3B | $14B | $13B | — | $13.1B |
| 2027 | $2.4B | $2.4B | — | $3.7B | $3.6B | $2.6B | — | $3.8B |
| 2030 | $525.3M | $537.8M | — | $2.7B | $2.4B | $2.5B | — | $3.1B |
| 2029 | $3.9B | $4.6B | — | $1.4B | $1.1B | $1.3B | — | $2.3B |
| 2028 | $5.4B | $5.2B | — | $4B | $3.4B | $3.5B | — | $1.7B |
| Remainder of 2026 | $2B | $317.9M | — | $997.6M | $703.5M | $203.1M | — | $1.4B |
| Remainder of Fiscal Year 2024 | $2B | $317.9M | — | $997.6M | $703.5M | $203.1M | — | $1.4B |
| Acquisition Date Fair Value | $33.6M | $139.3M | $591.6M | $630.2M | $632.8M | $958.1M | $1.2B | $1.2B |
| Thereafter | $1.8B | $1.9B | — | $496.4M | $2.8B | $2.9B | — | $759.6M |
| Building and building improvements | — | $75.8M | $410.5M | $429.2M | $431.8M | $555.9M | $708.1M | $714.2M |
| Cash and cash equivalents, book value | $373.9M | $322.1M | $323.5M | $668.6M | $388M | $377.9M | $452.5M | $549.2M |
| Shares authorized (in shares) | 500M | 500M | — | 500M | 500M | 500M | — | 500M |
| Aggregate sales price remaining available | $480.9M | $480.9M | — | $480.9M | $480.9M | $480.9M | — | $480.9M |
| Land and land improvements | $40.8M | $63.5M | $181.1M | $200.9M | $200.9M | $402.2M | $461.6M | $478.9M |
| Common stock, shares authorized (in shares) | $400M | $400M | $400M | $400M | $400M | $400M | $400M | $400M |
| Equity method investments (Note 11) | — | — | $4.5M | $29M | $108.1M | $182.6M | $217.5M | $244.4M |
| Common Stock, Shares Outstanding, Including Deferred Stock Units | 174M | 173.4M | 173.2M | 171.9M | 171.9M | 171.1M | 168.6M | 169M |
| Common stock, shares issued (in shares) | $173.6M | $173M | $172.8M | $171.6M | $171.6M | $170.7M | $168.3M | $168.7M |
| Common Stock, Shares, Outstanding | $173.6M | $173M | $172.8M | $171.6M | $171.6M | $170.7M | $168.3M | $168.7M |
| Operating Loss Carryforwards | $159M | $159M | — | $159M | $159M | $159M | — | $159M |
| Intangible real estate assets | — | $19.2M | $83.3M | $95.6M | $95.6M | $130.1M | $161.7M | $158.3M |
| Thereafter | — | — | — | $37.3M | $40.4M | $72.9M | — | $130.8M |
| Other real estate liabilities | — | — | $72M | $85.4M | $80.8M | $114.4M | $127.7M | $124.8M |
| AOCI - Cash Flow Hedge Reclassification (Next 12 Months) | $226.8M | $136.5M | $272.1M | $211.6M | $68.4M | $93.6M | $86.6M | $111M |
| Real estate intangible assets, net | — | $18.6M | $77.3M | $81.4M | $71.1M | $96.7M | $117.1M | $106.2M |
| Equity Method Investments Fair Value Disclosure | — | — | $0 | — | $55.9M | $104.9M | $111M | $101.3M |
| Preferred Stock, Shares Authorized | $100M | $100M | — | $100M | $100M | $100M | — | $100M |
| Financing Receivable, Unamortized Loan Cost (Fee) and Purchase Premium (Discount) | -$139.8M | -$159.2M | -$155.6M | -$168.1M | -$168.2M | -$121.6M | -$85.6M | -$81.5M |
| Debt securities | — | — | — | — | — | — | $0 | $66.1M |
| Remainder of fiscal 2026 | — | — | — | $40.8M | $30M | $17.8M | — | $62.8M |
| Intangible Real Estate Acquired Through Foreclosure, Accumulated Depreciation | — | $598K | $6M | $14.2M | $24.4M | $33.4M | $44.6M | $52.1M |
| Operating Lease Income - 2023 (Lessor) | — | — | — | $23.2M | $24.9M | $41.7M | — | $50.1M |
| Operating Lease Income - 2024 (Lessor) | — | — | — | $23.2M | $24.9M | $41.7M | — | $50.1M |
| Real Estate Acquired Through Foreclosure, Accumulated Depreciation | $185K | $616K | $3.4M | $10.4M | $17.5M | $24.5M | $34.7M | $44M |
| Land and land improvements | — | $63.5M | — | $15M | $15M | $221M | — | $22.8M |
| Cost-recovery proceeds | $76.3M | $99M | $106.7M | $117.1M | $109.2M | $69.2M | $24.5M | $20.3M |
| Management fee payable | — | — | $18.5M | — | — | $16.8M | $16.4M | $14.8M |
| Accrued management and incentive fees payable | $18.7M | $18.6M | $18.5M | $17.2M | $17M | $16.8M | $16.4M | $14.8M |
| Off-Balance-Sheet, Credit Loss, Liability | $9.9M | $8.3M | $10.4M | $10.5M | $11.7M | $13.7M | $11.6M | $13.1M |
| Other components | — | $1.5M | — | -$4.2M | -$4.2M | -$1M | — | $10.7M |
| Common shares reserved for issuance (in shares) | 10M | 10M | — | 10M | 10M | 10M | — | 10M |
| Number of shares available for future issuance (in shares) | 10M | 10M | — | 10M | 10M | 10M | — | 10M |
| Gross Assets/Liabilities | $24.4M | $50.3M | $5.2M | $68.2M | $95.7M | $2.6M | $26.6M | $9M |
| Derivative Liability | $24.4M | $50.3M | $5.2M | $68.2M | $95.7M | $2.6M | $26.6M | $9M |
| Building and building improvements | — | $75.7M | — | $19.7M | $19.7M | $137.1M | — | $7.6M |
| Accounts receivable and other assets | $7.5M | $8.2M | $134M | $11.3M | $57.7M | $114.2M | $56.8M | $7M |
| Collateral already posted, aggregate fair value | $15.9M | $49.1M | $4.8M | $69.6M | $86.4M | $0 | $25.3M | $7M |
| Loan portfolio payments held by servicer | $0 | $131.3M | $113.2M | $1.9M | $94.3M | $429.7M | $27.4M | $6.8M |
| Guarantor Obligations - Maximum Exposure | — | — | $5.5M | $3.5M | $3.5M | $5.5M | $5.5M | $5.5M |
| Indemnification Liability Maximum Exposure | — | — | $5.5M | $3.5M | $3.5M | $5.5M | $5.5M | $5.5M |
| Value of financial guarantee (up to) | — | — | $5.5M | $3.5M | $3.5M | $5.5M | $5.5M | $5.5M |
| Intangible Real Estate Liabilities Acquired Through Foreclosure, Gross | — | — | $1.4M | $1.5M | $1.5M | $4.5M | $4M | $4M |
| Intangible real estate liabilities, net | — | — | $1.4M | $1.4M | $1.2M | $4.2M | $3.4M | $3.1M |
| Noncontrolling interests in subsidiaries | $20.1M | $15.8M | $6.9M | $6.8M | $6.8M | $6.7M | $5.5M | $3.1M |
| Debt repayments pending servicer remittance | $0 | $105.1M | $3.7M | $1.3M | $48.9M | $335.4M | $11.7M | $2.8M |
| Cash collateral | — | — | $95.5M | — | $46.6M | $105.2M | $55.5M | $2.6M |
| Less: accumulated amortization | — | — | -$1K | -$104K | -$233K | -$317K | -$570K | -$844K |
| Below Market Lease, Amortization Income, Year One | — | — | — | $282K | $281K | $1.1M | — | $758K |
| Remainder 2022 | — | — | — | $285K | $159K | $292K | — | $675K |
| Below Market Lease, Amortization Income, Year Two | — | — | — | $254K | $253K | $995K | — | $637K |
| Below Market Lease, Amortization Income, Year Three | — | — | — | $174K | $114K | $872K | — | $512K |
| Below Market Lease, Amortization Income, Year Four | — | — | — | $138K | $138K | $498K | — | $302K |
| Below Market Lease, Amortization Income, after Year Four | — | — | — | $242K | $301K | $431K | — | $257K |
| Guarantor obligations, current carrying value | — | — | $32K | $20K | $19K | $32K | $32K | $32K |
| Number of Assets | — | — | 0.00 | — | 224.00 | 686.00 | 711.00 | 768.00 |
| Share price (in dollars per share) | — | $19 | — | $20 | $19.3 | $18.4 | — | $19.2 |
| Number of REO assets classified as held for sale investment | 1.00 | 3.00 | 7.00 | 8.00 | 8.00 | 10.00 | 12.00 | 13.00 |
| Weighted-average risk rating | 300.0% | 310.0% | 300.0% | 300.0% | 310.0% | 300.0% | 300.0% | 300.0% |
| Number of benefit plans | 2.00 | 2.00 | — | 2.00 | 2.00 | 2.00 | — | 2.00 |
| Percentage of loans by principal balance, floating rate | — | — | — | — | 98.0% | 98.0% | 97.0% | 97.0% |
| Percent of loans not subject to prepayment restrictions | 88.0% | 86.0% | 90.0% | 83.0% | 74.0% | 69.0% | 60.0% | 59.0% |
| Percent of loans subject to prepayment restrictions | 12.0% | 14.0% | 10.0% | 17.0% | 26.0% | 31.0% | 40.0% | 41.0% |
| Management core earnings fee percentage | 7.0% | 7.0% | — | 7.0% | 7.0% | 7.0% | — | 7.0% |
| Weighted-average cash coupon (percentage) | 3.4% | 3.4% | 3.5% | 3.4% | 3.3% | 3.2% | 3.2% | 3.2% |
| Percentage of loans by principal balance, fixed rate | — | — | — | — | 2.0% | 2.0% | 3.0% | 3.0% |
| Common stock, par value (in dollars per share) | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Acquired intangible assets | — | $19.2M | — | $14.5M | $14.5M | $49.2M | — | $0 |
| Preferred Stock, Shares Issued | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Preferred Stock, Shares Outstanding | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Share Repurchase Program, Authorized, Amount | — | $150M | — | $31.6M | $31.6M | — | $150M | — |
