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Mortgage Notes Payable Schedule of Aggregate Principal Payments On Mortgage Notes (Tables) | 12 Months Ended
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Dec. 31, 2016
Mortgage Notes Payable [Abstract] |
Schedule of Aggregate Principal Payments On Mortgage Notes [Table Text Block] | Contractual aggregate principal payments of mortgage notes payable at December 31, 2016 are as follows:
| Principal Payments
| (in thousands)
2017 | $ | 1,317,654 |
2018 | 18,633 |
2019 | 19,670 |
2020 | 20,766 |
2021 | 40,182 |
Thereafter | 614,710 |
Total aggregate principal payments | 2,031,615 |
Unamortized balance of historical fair value adjustment | 33,830 |
Deferred financing costs, net | (2,358 | )
Total carrying value of mortgage notes payable, net | $ | 2,063,087 |

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