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Real Estate - Schedule of Real Estate Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Real Estate Properties [Line Items] |  |
Land, at cost | $ 294,604 | $ 305,897
Buildings and improvements, at cost | 1,442,437 | 1,455,182
Less: accumulated depreciation | (235,952) | (233,860)
Real estate, net | 1,501,089 | 1,527,219
Real estate available and held for sale | 34,391 | 8,650
Total real estate | 1,535,480 | 1,535,869
Net Lease |  |
Real Estate Properties [Line Items] |  |
Land, at cost | 188,418 | 199,710
Buildings and improvements, at cost | 1,333,766 | 1,347,321
Less: accumulated depreciation | (221,008) | (219,949)
Real estate, net | 1,301,176 | 1,327,082
Real estate available and held for sale | 25,730 | 0
Total real estate | 1,326,906 | 1,327,082
Net Lease | Net Lease Venture |  |
Real Estate Properties [Line Items] |  |
Real estate, net | 765,300 | 768,600
Operating Properties |  |
Real Estate Properties [Line Items] |  |
Land, at cost | 106,186 | 106,187
Buildings and improvements, at cost | 108,671 | 107,861
Less: accumulated depreciation | (14,944) | (13,911)
Real estate, net | 199,913 | 200,137
Real estate available and held for sale | 8,661 | 8,650
Total real estate | 208,574 | 208,787
Residential Condominiums |  |
Real Estate Properties [Line Items] |  |
Real estate available and held for sale | $ 8,700 | $ 8,600

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- Definition Amount before accumulated depletion of real estate held for productive use, excluding land held for sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=118951113&loc=d3e6812-107765 + Details
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