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Note 7 - Investment and Advances in Real Estate Joint Ventures - Investment and Advances to Real Estate Joint Ventures - Balance Sheets (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | --- | ---
Real Estate Investment Property, Net, Total |  | $ 9,346,041 | $ 9,209,053 |  |
Other Assets, Total |  | 97,225 | 194,682 |  |
Assets, Total | [1] | 11,614,498 | 10,997,867 |  |
Notes payable, net |  | 5,044,208 | 4,831,759 |  |
Secured Debt, Total |  | 311,272 | 484,008 |  |
Other Liabilities, Total |  | 324,538 | 346,183 |  |
Members’ capital |  | 5,608,044 | 4,864,892 |  |
Total Liabilities and Members' Capital |  | 11,614,498 | 10,997,867 |  |
Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance |  | 62,210 | 64,015 |  |
Members’ capital |  | 5,670,254 | 4,928,907 | $ 5,411,053 | $ 5,530,245
KIR [Member] | Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] |  |  |  |  |
Real Estate Investment Property, Net, Total |  | 787,100 | 788,700 |  |
Other Assets, Total |  | 75,300 | 83,600 |  |
Assets, Total |  | 862,400 | 872,300 |  |
Notes payable, net |  | 91,500 | 0 |  |
Secured Debt, Total |  | 445,400 | 556,000 |  |
Other Liabilities, Total |  | 17,400 | 16,300 |  |
Members’ capital |  | 308,100 | 300,000 |  |
Total Liabilities and Members' Capital |  | 862,400 | 872,300 |  |
Excluding KIR [Member] | Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] |  |  |  |  |
Real Estate Investment Property, Net, Total |  | 2,549,200 | 2,596,900 |  |
Other Assets, Total |  | 179,000 | 140,300 |  |
Assets, Total |  | 2,728,200 | 2,737,200 |  |
Notes payable, net |  | 199,800 | 199,800 |  |
Secured Debt, Total |  | 804,300 | 838,300 |  |
Other Liabilities, Total |  | 53,600 | 59,500 |  |
Total Liabilities and Members' Capital |  | 2,728,200 | 2,737,200 |  |
Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance |  | 18,300 | 17,700 |  |
Members’ capital |  | $ 1,652,200 | $ 1,621,900 |  |
[1] | Includes restricted assets of consolidated variable interest entities ("VIEs") at December 31, 2020 and December 31, 2019 of $102,482 and $245,489, respectively. See Footnote 10 of the Notes to Consolidated Financial Statements.

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