Investments - Summary of Lease Intangible, Net (Details) - USD ($)
$ in Thousands |
Dec. 31, 2018 |
Dec. 31, 2017 |
| Capital Leased Assets [Line Items] |
|
|
| Less: accumulated amortization |
$ (149,582)
|
|
| Intangible lease assets, net |
294,463
|
$ 306,252
|
| Below-market leases |
167,527
|
|
| Less: accumulated amortization |
(47,365)
|
|
| Intangible lease liabilities, net |
120,162
|
|
| In-place Leases |
|
|
| Capital Leased Assets [Line Items] |
|
|
| Intangible lease assets, gross |
381,143
|
|
| Above-market Leases |
|
|
| Capital Leased Assets [Line Items] |
|
|
| Intangible lease assets, gross |
$ 62,902
|
|
| Continuing operations and discontinued operations |
|
|
| Capital Leased Assets [Line Items] |
|
|
| Less: accumulated amortization |
|
(271,288)
|
| Intangible lease assets, net |
|
409,903
|
| Below-market leases |
|
216,642
|
| Less: accumulated amortization |
|
(61,339)
|
| Intangible lease liabilities, net |
|
155,303
|
| Continuing operations and discontinued operations | In-place Leases |
|
|
| Capital Leased Assets [Line Items] |
|
|
| Intangible lease assets, gross |
|
591,551
|
| Continuing operations and discontinued operations | Above-market Leases |
|
|
| Capital Leased Assets [Line Items] |
|
|
| Intangible lease assets, gross |
|
$ 89,640
|