Subsequent Events - Acquisitions (Details) ft² in Millions, $ in Millions	1 Months Ended
Nov. 05, 2020 USD ($) ft² building	Sep. 30, 2020 ft²
Subsequent Event [Line Items]
Area (in square feet)		92.3
Subsequent Event [Member]
Subsequent Event [Line Items]
Number of properties \| building	9
Area (in square feet)	3.7
Business Combination, Consideration Transferred \| $	$ 256.5

Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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