Properties, net (Details 2) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Properties | ||
| Projects in development or held for future development | $ 401,531 | $ 429,219 |
| Projects in development or held for future development [Member] | Land in development or held for future development [Member] | ||
| Properties | ||
| Projects in development or held for future development | 195,521 | 207,774 |
| Projects in development or held for future development [Member] | Development in progress, excluding land [Member] | ||
| Properties | ||
| Projects in development or held for future development | $ 206,010 | $ 221,445 |
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- Definition The current amount of expenditures for a real estate project that has not yet been completed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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