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v3.20.4

Land and Development (Acquisitions, Dispositions, Impairments) (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) land_asset | Dec. 31, 2019 USD ($) land_asset | Dec. 31, 2018 USD ($) a land_asset parcel
Real Estate Properties [Line Items] |  |  |
Increase in net lease assets upon consolidation of equity method investment | $ 0 | $ 0 | $ 844,550
Revenue | 530,949 | 479,496 | $ 798,122
Number of land parcels sold | parcel |  |  | 2
Area of land parcels sold (in acres) | a |  |  | 93
Impairment of assets | 7,827 | 13,419 | $ 147,108
Impairment of land and development assets, expected sales proceeds |  | $ 5,300 |
Number of land and development assets impaired | land_asset |  | 2 | 5
Impairment of land and development assets |  |  | $ 56,700
Land |  |  |
Real Estate Properties [Line Items] |  |  |
Aggregate financing provided to buyers |  |  | 145,000
Proceeds of notes receivable | 58,200 | $ 94,200 |
Land development |  |  |
Real Estate Properties [Line Items] |  |  |
Revenue | 164,702 | 119,595 | 409,710
Cost of sales expense | 177,727 | 109,663 | 350,181
Land | Real Estate Acquired in Satisfaction of Debt |  |  |
Real Estate Properties [Line Items] |  |  |
Increase in net lease assets upon consolidation of equity method investment |  |  | $ 4,600
Land and development asset |  |  |
Real Estate Properties [Line Items] |  |  |
Impairment of assets | $ 2,700 | 1,100 |
Number of land and development assets impaired | land_asset | 2 |  |
Affiliated Entity |  |  |
Real Estate Properties [Line Items] |  |  |
Real estate transaction price |  | 34,300 |
Payments to acquire land and develop asset |  | 7,300 |
Assumption of loan in acquisition transaction |  | $ 27,000 |
Other Real Estate Equity Investment Dec 2016 |  |  |
Real Estate Properties [Line Items] |  |  |
Equity interest |  | 50.00% |

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