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Organization - Narrative (Details) ft² in Millions | 9 Months Ended
--- | ---
Sep. 30, 2018 ft² property | Sep. 30, 2017
Operations [Line Items] |  |
Number of properties (property) | property | 336 |
Rentable square feet (sqft) | ft² | 26.2 |
Occupancy rate | 99.50% |
Weighted average remaining lease term | 8 years 7 months |
United States |  |
Operations [Line Items] |  |
Entity-wide revenue percentage | 52.90% | 48.90%
Europe |  |
Operations [Line Items] |  |
Percentage of portfolio investments | 47.10% |

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- Definition Portfolio Strategy, Target Geographic Mix, Percentage of Portfolio Investments + References No definition available. + Details
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- Details
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- Details
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