Schedule of Debt [Table Text Block] |
| (Amounts in thousands) | Weighted Average | | | | | | | | | | | | | | Interest Rate at | | | Balance at December 31, | | | | | | | | December 31, 2015 | | | 2015 | | | 2014 | | | Mortgages Payable: | | | | | | | | | | | | Fixed rate | | 4.29% | | $ | 6,356,634 | | $ | 6,497,286 | | | | Variable rate | | 2.14% | | | 3,258,204 | | | 1,763,769 | | | | | Total | | | | 3.56% | | | 9,614,838 | | | 8,261,055 | | | | Deferred financing costs, net and other | | | | | (101,125) | | | (73,212) | | | | | Total, net | | | | | | $ | 9,513,713 | | $ | 8,187,843 | | | | | | | | | | | | | | | | | | Unsecured Debt: | | | | | | | | | | | | Senior unsecured notes | | 3.68% | | $ | 850,000 | | $ | 1,350,000 | | | | Deferred financing costs, net and other | | | | | (5,841) | | | (7,506) | | | | | Senior unsecured notes, net | | | | | | | 844,159 | | | 1,342,494 | | | | | | | | | | | | | | | | | | | Unsecured term loan | | 1.40% | | | 187,500 | | | - | | | | Deferred financing costs, net and other | | | | | (4,362) | | | - | | | | | Unsecured term loan, net | | | | | | | 183,138 | | | - | | | | | | | | | | | | | | | | | | | Unsecured revolving credit facilities | | 1.38% | | | 550,000 | | | - | | | | | | | | | | | | | | | | | | | | Total, net | | | | | | $ | 1,577,297 | | $ | 1,342,494 | |
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Schedule of Maturities of Long-Term Debt [Table Text Block] |
| (Amounts in thousands) | | | | | | Senior Unsecured | | | | | | | | | | Debt and Unsecured | | | | | | | | | | Revolving Credit | | | | | | | Mortgages Payable | | | Facilities | | | | Year Ending December 31, | | | | | | | | | | 2016 | | $ | 1,095,366 | | $ | 550,000 | | | | 2017 | | | 411,113 | | | - | | | | 2018 | | | 441,354 | | | - | | | | 2019 | | | 379,122 | | | 450,000 | | | | 2020 | | | 2,835,451 | | | 187,500 | | | | Thereafter | | | 4,452,432 | | | 400,000 | | |
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