| Equity Method Investments [Table Text Block] |
| | | Dutch Real Estate Entities | | | Columbus Circle II SPAC | | | SPAC Sponsor Entities and Other | | | Total | |
| January 1, 2026 | | $ | 5,739 | | | $ | - | | | $ | 922 | | | $ | 6,661 | |
| Investments / advances | | | 2,741 | | | | 3,666 | | | | - | | | | 6,407 | |
| Distributions / repayments | | | - | | | | - | | | | - | | | | - | |
| Reclasses to (from) | | | - | | | | - | | | | (1,351 | ) | | | (1,351 | ) |
| Earnings / (loss) recognized | | | (353 | ) | | | (3,666 | ) | | | 454 | | | | (3,565 | ) |
| June 30, 2026 | | $ | 8,127 | | | $ | - | | | $ | 25 | | | $ | 8,152 | |
| | | Dutch Real Estate Entities | | | Columbus Circle SPAC | | | SPAC Sponsor Entities and Other | | | Total | |
| January 1, 2025 | | $ | 5,105 | | | $ | - | | | $ | 18,325 | | | $ | 23,430 | |
| Investments / advances | | | - | | | | 3,467 | | | | - | | | | 3,467 | |
| Distributions / repayments | | | - | | | | - | | | | (1,587 | ) | | | (1,587 | ) |
| Reclasses to (from) | | | - | | | | - | | | | (1,886 | ) | | | (1,886 | ) |
| Earnings / (loss) recognized | | | 634 | | | | (3,467 | ) | | | (13,930 | ) | | | (16,763 | ) |
| December 31, 2025 | | $ | 5,739 | | | $ | - | | | $ | 922 | | | $ | 6,661 | |
| | | June 30, 2026 | | | December 31, 2025 | |
| Total Assets | | $ | 403,580 | | | $ | 494,662 | |
| | | | | | | | | |
| Liabilities | | $ | 127,022 | | | $ | 194,512 | |
| Equity allocable to the controlling interest | | | 276,433 | | | | 300,025 | |
| Noncontrolling interest | | | 125 | | | | 125 | |
| Total Equity | | | 276,558 | | | | 300,150 | |
| Total Liabilities & Equity | | $ | 403,580 | | | $ | 494,662 | |
| | | Three months ended | | | Six months ended | |
| | | June 30, | | | June 30, | | | June 30, | | | June 30, | |
| | | 2026 | | | 2025 | | | 2026 | | | 2025 | |
| Net income/(loss) | | $ | 115 | | | $ | 12,967 | | | $ | (170 | ) | | $ | 16,029 | |
| Net income/(loss) attributable to the investee | | $ | 107 | | | $ | 12,959 | | | $ | (178 | ) | | $ | 16,021 | |
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