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Real Estate Assets, Net - Single-Family Properties and Land (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 USD ($) property | Dec. 31, 2019 USD ($) property | Dec. 31, 2018 USD ($) property
Land: |  |  |
Financing receivable, before allowance for credit loss, noncurrent |  | $ 30,700 |
Premiums and other receivables |  | $ 1,200 |
Single Family Homes |  |  |
Single-family properties: |  |  |
Properties sold | property | 1,047 | 1,330 | 691
Net proceeds | $ 228,495 | $ 248,199 | $ 105,394
Gain (Loss) On Properties Sold, Excluding Joint Venture Properties | 47,187 | 43,507 | 16,313
Land: |  |  |
Net proceeds | 71 | 3,205 | 763
Net gain on sale | $ 7 | $ 366 | $ 220

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- Definition The valuation allowance as of the balance sheet date to reduce the gross amount of receivables to estimated net realizable value, which would be presented in parentheses on the face of the balance sheet. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121611835&loc=d3e5074-111524 + Details
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