Investments - Schedule of Activity in Real Estate Assets Held for Sale (Details) $ in Thousands |
6 Months Ended |
|---|---|
|
Jun. 30, 2018
USD ($)
Property
| |
| Number of Properties | |
| Beginning Balance (in properties) | Property | 15 |
| Transfers from real estate investments held and used (in properties) | Property | 6 |
| Sales (in properties) | Property | (6) |
| Transfers to real estate investments held and used (in properties) | Property | (7) |
| Transfer to SMTA | Property | (5) |
| Ending Balance (in properties) | Property | 3 |
| Carrying Value | |
| Beginning Balance | $ 48,929 |
| Transfers from real estate investments held and used | 14,090 |
| Sales | (10,257) |
| Transfers to real estate investments held in use | (25,715) |
| Transfer to SMTA | (7,853) |
| Impairments | (369) |
| Ending Balance | $ 18,825 |