Annual report pursuant to Section 13 and 15(d)

Tenant Leases (Details)

v2.4.1.9
Tenant Leases (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Property Subject to or Available for Operating Lease [Line Items]  
2015 454,461us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableCurrent
2016 420,115us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears
2017 368,666us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears
2018 288,977us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFourYears
2019 234,368us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears
2020 and thereafter 934,117us-gaap_OperatingLeasesFutureMinimumPaymentsReceivableThereafter
Total 2,700,704us-gaap_OperatingLeasesFutureMinimumPaymentsReceivable
Tenant Leases [Member]  
Property Subject to or Available for Operating Lease [Line Items]  
Operating leases with various expiration dates through year Dec. 31, 2035
Multi-Family Properties [Member]  
Property Subject to or Available for Operating Lease [Line Items]  
Lease period 1 year