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Investment in Real Estate - Narratives (Details) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 23, 2019 USD ($) property site | Mar. 31, 2019 USD ($) | Dec. 31, 2019 USD ($) property land marina site | Dec. 31, 2018 USD ($) property site | Dec. 31, 2017 USD ($) property site
Real Estate Properties |  |  |  |  |
Number of properties acquired | property |  |  | 4 |  | 2
Purchase price |  |  | $ 58,300 | $ 251,700 | $ 142,400
Number of sites acquired | site |  |  | 1,614 | 3,712 | 1,870
Mortgage debt assumed |  |  | $ 18,600 |  | $ 5,900
Mortgage premium transferred |  |  | 600 |  |
Assets acquired |  |  | 249,197 | $ 265,129 | 142,255
Long-term debt assumed |  |  |  | 9,200 |
Asset acquisition, liabilities incurred |  |  |  | 8,800 |
Gain on sale of real estate, net |  |  | 52,507 | $ 0 | $ 0
Manufactured Homes in Indiana and Michigan | Disposed of by Sale, Not Discontinued Operations |  |  |  |  |
Real Estate Properties |  |  |  |  |
Number of properties sold (property) | property | 5 |  |  |  |
Number of sites sold | site | 1,463 |  |  |  |
Proceeds from sales of properties | $ 89,700 |  |  |  |
Gain on sale of real estate, net |  | $ 52,500 |  |  |
Net investment in real estate | 35,400 |  |  |  |
Other assets | 500 |  |  |  |
Mortgage notes payable | $ 11,200 |  |  |  |
Loggerhead Marina Portfolio |  |  |  |  |
Real Estate Properties |  |  |  |  |
Purchase price |  |  | $ 49,000 |  |
Number of marinas (marinas) | marina |  |  | 11 |  |
Repayments of outstanding debt |  |  | $ 72,000 |  |
Assets acquired |  |  | 162,200 |  |
Loggerhead Marina Portfolio | Joint venture |  |  |  |  |
Real Estate Properties |  |  |  |  |
Assets acquired |  |  | 35,800 |  |
Land |  |  |  |  |
Real Estate Properties |  |  |  |  |
Purchase price |  |  | $ 28,100 |  |
Number of land parcels (land) | land |  |  | 3 |  |
R V Resort |  |  |  |  |
Real Estate Properties |  |  |  |  |
Number of properties acquired | property |  |  |  | 4 |
Vacant Land |  |  |  |  |
Real Estate Properties |  |  |  |  |
Number of properties acquired | property |  |  |  | 4 |
Purchase price |  |  |  | $ 2,800 |
Number of assets acquired | property |  |  |  | 2 |

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