| Component: (Network and Table) | |
|---|---|
| Network | 128 - Disclosure - Mortgage Debt (Details) (http://www.presrealty.com/role/MortgageDebtDetails) |
| Table | Statement [Table] |
| Reporting Entity [Axis] | 0000731245 (http://www.sec.gov/CIK) |
| Class of Stock [Axis] | Class of Stock [Domain] |
| Statement [Line Items] | Period [Axis] |
|---|---|
2015-12-31 | |
2016 | |
2017 | |
2018 | |
2019 | |
2020 | |
Thereafter |