Net Investments in Properties and Real Estate Under Construction - Property Plant and Equipment (Details) - USD ($) $ in Thousands |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Investments in real estate | ||
| Less: Accumulated depreciation | $ (299,533) | $ (256,175) |
| Net investments in properties | 2,704,862 | 2,678,223 |
| Real estate | ||
| Investments in real estate | ||
| Land | 563,050 | 560,257 |
| Buildings | 2,182,374 | 2,098,620 |
| Less: Accumulated depreciation | (280,657) | (225,867) |
| Net investments in properties | 2,464,767 | 2,433,010 |
| Operating real estate | ||
| Investments in real estate | ||
| Land | 55,645 | 66,066 |
| Buildings | 203,326 | 209,455 |
| Less: Accumulated depreciation | (18,876) | (30,308) |
| Net investments in properties | $ 240,095 | $ 245,213 |