Debt Financing Debt Financing Schedule of Long Term Debt (Details) $ in Thousands, AUD in Millions | 1 Months Ended | | |
May 30, 2017USD ($)$ / AUD | May 30, 2017AUD$ / AUD | Sep. 30, 2017USD ($) | Dec. 31, 2016USD ($) |
Debt Instrument [Line Items] | | | | |
Debt, principal outstanding | | | $ 1,924,494 | $ 2,215,717 |
Unamortized Deferred Financing Fees | | | (6,478) | (8,418) |
Notes Payable | | | $ 1,918,016 | 2,207,299 |
JPMorgan Chase Revolving Credit Facility - Revolving Loan | | | | |
Debt Instrument [Line Items] | | | | |
Credit facility, interest rate (percent) | | | 2.74% | |
Credit facility, principal outstanding | | | $ 62,000 | 119,000 |
JPMorgan Chase Revolving Credit Facility - Term Loan | | | | |
Debt Instrument [Line Items] | | | | |
Credit facility, interest rate (percent) | | | 2.69% | |
Credit facility, principal outstanding | | | $ 495,000 | 495,000 |
Brindleyplace Project | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Debt, principal outstanding | | | | 149,343 |
Fifty South Sixth | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 2.84% | |
Debt, principal outstanding | | | $ 125,000 | 125,000 |
Flagship Capital JV | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Credit facility, principal outstanding | | | | 512 |
100 Brookes | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 3.75% | |
Debt, principal outstanding | | | $ 28,188 | 31,109 |
Reduction in basis spread on variable rate debt | 0.20% | 0.20% | | |
Repayments of debt | $ 5,400 | AUD 7.2 | | |
Foreign currency exchange rate, translation (in usd per share) | $ / AUD | 0.74 | 0.74 | | |
Poland Logistics Portfolio | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 2.00% | |
Debt, principal outstanding | | | $ 70,509 | 64,294 |
Minneapolis Retail Center | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 3.50% | |
Debt, principal outstanding | | | $ 65,500 | 65,500 |
825 Ann | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 2.30% | |
Debt, principal outstanding | | | $ 63,450 | 58,320 |
Mercedes Benz Bank | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Debt, principal outstanding | | | | 35,041 |
465 Victoria | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 2.95% | |
Debt, principal outstanding | | | $ 41,661 | 38,293 |
New City | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 2.30% | |
Debt, principal outstanding | | | $ 80,229 | 73,612 |
One Westferry Circus | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 3.30% | |
Debt, principal outstanding | | | $ 64,282 | 59,213 |
The Campus at Playa Vista | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 2.64% | |
Debt, principal outstanding | | | $ 150,000 | 150,000 |
Perspective Défense | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 2.17% | |
Debt, principal outstanding | | | $ 82,691 | 73,612 |
Fiege Mega Centre | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 1.37% | |
Debt, principal outstanding | | | $ 26,613 | 23,924 |
55 M Street | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Debt, principal outstanding | | | | 72,000 |
25 Cabot Square | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 3.50% | |
Debt, principal outstanding | | | $ 165,726 | 152,658 |
Simon Hegele Logistics | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 1.90% | |
Debt, principal outstanding | | | $ 41,430 | 37,167 |
818 Bourke | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 2.35% | |
Debt, principal outstanding | | | $ 66,751 | 62,254 |
The Summit | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 2.79% | |
Debt, principal outstanding | | | $ 170,000 | 170,000 |
Harder Logistics Portfolio | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 0.95% | |
Debt, principal outstanding | | | $ 80,567 | 72,275 |
WaterWall Place Loan | Construction Loan Payable | | | | |
Debt Instrument [Line Items] | | | | |
Effective interest rate (percent) | | | 2.84% | |
Debt, principal outstanding | | | $ 44,897 | 44,897 |
Aviva Coral Gables JV Loan | Construction Loan Payable | | | | |
Debt Instrument [Line Items] | | | | |
Debt, principal outstanding | | | | $ 42,693 |
Minimum | Flagship Capital JV | Secured Debt | | | | |
Debt Instrument [Line Items] | | | | |
Variable interest rate, floor (percent) | | | 4.25% | |