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Subsequent Events (Details) - Subsequent Event [Member] $ in Millions | May 05, 2020 USD ($) | Apr. 22, 2020 USD ($) ft²
--- | --- | ---
Metropolitan Square Associates Llc [Member] |  |
Subsequent Event [Line Items] |  |
Debt |  | $ 156.4
Debt Instrument, Interest Rate, Stated Percentage |  | 5.75%
Ownership Percentage |  | 20.00%
Net Rentable Area (in sf) | ft² |  | 654,000
3.343 % unsecured senior notes [Member] |  |
Subsequent Event [Line Items] |  |
Debt | $ 1,250.0 |
Debt Instrument, Interest Rate, Stated Percentage | 3.25% |
Senior Notes Pricing | 99.85% |
Debt Instrument, Interest Rate, Effective Percentage | 3.343% |
Proceeds from Issuance of Unsecured Debt | $ 1,240.0 |

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