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Investment in Real Estate Investment in Real Estate - Summary of Purchase Price Allocation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019
Real Estate [Line Items]
Land	$ 1,060,358	$ 957,478
Buildings and Improvements	2,813,421	$ 2,782,430
Acquisition Activity
Real Estate [Line Items]
Land	83,511
Buildings and Improvements	56,048
Other Assets	37
Purchase price of industrial properties acquired	139,941
Acquisition Activity | In-Place Leases
Real Estate [Line Items]
Acquired finite lived intangible assets, fair value	981
Acquisition Activity | Above Market Leases [Member]
Real Estate [Line Items]
Acquired finite lived intangible assets, fair value	134
Acquisition Activity | Below Market Leases
Real Estate [Line Items]
Acquired finite lived intangible liabilities, fair value	$ (770)

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Aggregate of the carrying amounts as of the balance sheet date of investments in building and building improvements.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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