Quarterly report pursuant to Section 13 or 15(d)

Tenant Leases (Details)

v2.4.0.6
Tenant Leases (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Property Subject to or Available for Operating Lease [Line Items]  
April 1 through December 31, 2013 416,730
2014 507,435
2015 445,201
2016 395,707
2017 339,828
2018 and thereafter 1,230,461
Total 3,335,362
Tenant Leases [Member]
 
Property Subject to or Available for Operating Lease [Line Items]  
Operating leases with various expiration dates through year Mar. 31, 2033