Real Estate Acquisitions and Dispositions - Assets Acquired and Liabilities Assumed (Details) - Series of Individually Immaterial Asset Acquisitions $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)
Business Acquisition [Line Items]
Land and land improvements	$ 12,398
Building and building improvements	41,709
Below-market lease intangibles	$ (111)
Below market lease useful life (in years)	3 years 1 month 6 days
Total intangibles	$ 5,756
Accounts receivable and other assets acquired	247
Accounts payable, accrued liabilities and other liabilities assumed	(827)
Prorated rent, interest and operating expense reimbursement amounts collected	(338)
Total cash consideration	58,945
At-market lease intangibles
Business Acquisition [Line Items]
Lease intangibles	$ 5,575
Intangibles useful life (in years)	5 years 4 months 24 days
Above-market lease intangibles
Business Acquisition [Line Items]
Lease intangibles	$ 292
Intangibles useful life (in years)	4 years 9 months 18 days
Land and land improvements
Business Acquisition [Line Items]
Useful life (in years)	8 years 6 months
Building and building improvements
Business Acquisition [Line Items]
Useful life (in years)	30 years 2 months 12 days