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Commitments and Contingencies - Summary of Properties Under Contracts (Details) $ in Thousands | 6 Months Ended
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Jun. 30, 2019 USD ($) a ft² property
Third-party seller |
Real Estate Properties [Line Items] |
Number of Buildings | property | 11
Area of real estate property | ft² | 360,727
Purchase price | $ 120,900
Assumed debt | $ 0
Improved land parcels |
Real Estate Properties [Line Items] |
Number of Buildings | property | 17
Area of real estate property | ft² | 13,000,000.0
Los Angeles | Third-party seller |
Real Estate Properties [Line Items] |
Number of Buildings | property | 7
Area of real estate property | ft² | 82,884
Purchase price | $ 23,525
Assumed debt | $ 0
Northern New Jersey/New York City | Third-party seller |
Real Estate Properties [Line Items] |
Number of Buildings | property | 2
Area of real estate property | ft² | 195,598
Purchase price | $ 84,525
Assumed debt | $ 0
Northern New Jersey/New York City | Improved land parcels | Third-party seller |
Real Estate Properties [Line Items] |
Number of Buildings | property | 1
Area of real estate property | a | 2.0
San Francisco Bay Area | Third-party seller |
Real Estate Properties [Line Items] |
Number of Buildings | property | 0
Area of real estate property | ft² | 0
Purchase price | $ 0
Assumed debt | $ 0
Seattle | Third-party seller |
Real Estate Properties [Line Items] |
Number of Buildings | property | 2
Area of real estate property | ft² | 82,245
Purchase price | $ 12,850
Assumed debt | $ 0
Miami | Third-party seller |
Real Estate Properties [Line Items] |
Number of Buildings | property | 0
Area of real estate property | ft² | 0
Purchase price | $ 0
Assumed debt | $ 0
Washington D.C. | Third-party seller |
Real Estate Properties [Line Items] |
Number of Buildings | property | 0
Area of real estate property | ft² | 0
Purchase price | $ 0
Assumed debt | $ 0

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