Investments In Unconsolidated Joint Ventures (Summary Of Financial Position Of Unconsolidated Joint Ventures) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Investments In Unconsolidated Joint Ventures [Abstract]
Rental property, net	$ 1,404,929	$ 755,049
Loan receivable		45,050
Other assets	445,127	582,990
Total assets	1,850,056	1,383,089
Mortgages and loans payable	992,434	637,709
Other liabilities	221,414	87,231
Partners'/members' capital	636,208	658,149
Total liabilities and partners'/members' capital	$ 1,850,056	$ 1,383,089