Annual report pursuant to Section 13 and 15(d)

Tenant Leases (Future Minimum Rentals To Be Received Under Non-Cancelable Operating Leases) (Details)

v3.10.0.1
Tenant Leases (Future Minimum Rentals To Be Received Under Non-Cancelable Operating Leases) (Details)
$ in Thousands
12 Months Ended
Dec. 31, 2018
USD ($)
Property Subject to or Available for Operating Lease [Line Items]  
2019 $ 314,708
2020 306,559
2021 284,120
2022 258,076
2023 220,533
2024 and thereafter 923,061
Total $ 2,307,057
Tenant Leases [Member]  
Property Subject to or Available for Operating Lease [Line Items]  
Operating leases with various expiration dates through year Dec. 31, 2036
Multi-Family Properties [Member]  
Property Subject to or Available for Operating Lease [Line Items]  
Lease period 1 year