Gladstone Commercial Corporation Quarterly report pursuant to Section 13 or 15(d)

Real Estate and Intangible Assets - Schedule of Acquired Properties (Details)

Real Estate and Intangible Assets - Schedule of Acquired Properties (Details) $ in Thousands											9 Months Ended
	Jul. 28, 2023 USD ($) ft² tenant	Jul. 10, 2023 USD ($) ft² tenant	Apr. 14, 2023 USD ($) ft² tenant	Sep. 20, 2022 USD ($) ft²	Sep. 16, 2022 USD ($) ft² tenant	Aug. 05, 2022 USD ($) ft² tenant property	May 12, 2022 USD ($) ft² tenant property	May 04, 2022 USD ($) ft² tenant property	Mar. 11, 2022 USD ($) ft² tenant	Feb. 24, 2022 USD ($) ft² tenant	Sep. 30, 2023 USD ($) ft² property	Sep. 30, 2022 USD ($) ft² property
Business Acquisition [Line Items]
Number of properties acquired \| property											3	11
Aggregate Purchase Price											$ 17,539	$ 98,276
Riverdale, Illinois
Business Acquisition [Line Items]
Aggregate Square Footage \| ft²			76,089
Weighted Average Lease Term			20 years
Aggregate Purchase Price			$ 5,400
Number of tenants \| tenant			1
Dallas Fort Worth, Texas
Business Acquisition [Line Items]
Aggregate Square Footage \| ft²	100,000	7,714
Weighted Average Lease Term	20 years	9 years 10 months 24 days
Aggregate Purchase Price	$ 9,200	$ 3,000
Number of tenants \| tenant	1	1
Wilkesboro, North Carolina
Business Acquisition [Line Items]
Aggregate Square Footage \| ft²										80,000
Weighted Average Lease Term										12 years 8 months 12 days
Aggregate Purchase Price										$ 7,500
Number of tenants \| tenant										1
Oklahoma City, Oklahoma
Business Acquisition [Line Items]
Aggregate Square Footage \| ft²									56,000
Weighted Average Lease Term									7 years
Aggregate Purchase Price									$ 6,000
Number of tenants \| tenant									1
Cleveland, Ohio and Fort Payne, Alabama
Business Acquisition [Line Items]
Number of properties acquired \| property								2
Aggregate Square Footage \| ft²								260,719
Weighted Average Lease Term								11 years 4 months 24 days
Aggregate Purchase Price								$ 19,500
Number of tenants \| tenant								1
Wilmington, North Carolina
Business Acquisition [Line Items]
Number of properties acquired \| property							3
Aggregate Square Footage \| ft²							345,584
Weighted Average Lease Term							13 years 1 month 6 days
Aggregate Purchase Price							$ 18,900
Number of tenants \| tenant							1
Bridgeton and Vineland, New Jersey
Business Acquisition [Line Items]
Number of properties acquired \| property						2
Aggregate Square Footage \| ft²						246,000
Weighted Average Lease Term						15 years 1 month 6 days
Aggregate Purchase Price						$ 32,700
Number of tenants \| tenant						1
Jacksonville, Florida
Business Acquisition [Line Items]
Aggregate Square Footage \| ft²					67,328
Weighted Average Lease Term					20 years
Aggregate Purchase Price					$ 8,100
Number of tenants \| tenant					1
Fort Payne, Alabama
Business Acquisition [Line Items]
Aggregate Square Footage \| ft²				49,375
Weighted Average Lease Term				14 years 9 months 18 days
Aggregate Purchase Price				$ 5,600
Series of Property Acquisitions
Business Acquisition [Line Items]
Aggregate Square Footage \| ft²											183,803	1,105,006
Weighted Average Lease Term											18 years 8 months 12 days	13 years 9 months 18 days
Aggregate Purchase Price											$ 17,539	$ 98,276
Aggregate Capitalized Acquisition Costs											$ 349	$ 776