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Real Estate (Schedule of Real Estate Assets) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Real Estate Properties [Line Items] |  |  |
Less: accumulated depreciation | [1] | $ (267,772) | $ (233,860)
Real estate, net | [1] | 1,484,281 | 1,527,219
Real estate available and held for sale | [1] | 5,212 | 8,650
Total real estate | [1] | 1,489,493 | 1,535,869
Net Lease |  |  |
Real Estate Properties [Line Items] |  |  |
Land, at cost |  | 188,418 | 199,710
Buildings and improvements, at cost |  | 1,353,683 | 1,347,321
Less: accumulated depreciation |  | (250,198) | (219,949)
Real estate, net |  | 1,291,903 | 1,327,082
Real estate available and held for sale |  | 0 | 0
Total real estate |  | 1,291,903 | 1,327,082
Net Lease | iStar Net Lease I LLC |  |  |
Real Estate Properties [Line Items] |  |  |
Real estate, net |  | 755,500 | 768,600
Operating Properties |  |  |
Real Estate Properties [Line Items] |  |  |
Land, at cost |  | 103,530 | 106,187
Buildings and improvements, at cost |  | 106,422 | 107,861
Less: accumulated depreciation |  | (17,574) | (13,911)
Real estate, net |  | 192,378 | 200,137
Real estate available and held for sale |  | 5,212 | 8,650
Total real estate |  | 197,590 | 208,787
Real Estate Properties |  |  |
Real Estate Properties [Line Items] |  |  |
Land, at cost |  | 291,948 | 305,897
Buildings and improvements, at cost |  | 1,460,105 | 1,455,182
Less: accumulated depreciation |  | (267,772) | (233,860)
Real estate, net |  | 1,484,281 | 1,527,219
Real estate available and held for sale |  | 5,212 | 8,650
Total real estate |  | 1,489,493 | 1,535,869
Residential Operating Properties |  |  |
Real Estate Properties [Line Items] |  |  |
Real estate available and held for sale |  | $ 5,200 | $ 8,700
[1] | Refer to Note 2 for details on the Company's consolidated variable interest entities ("VIEs").

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- Definition Aggregate of the carrying amounts as of the balance sheet date of investments in building and building improvements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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