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

Real Estate and Intangible Assets - Schedule of Carrying Value of Intangible Assets and Accumulated Amortization (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Below market leases and deferred revenue, lease intangibles	$ (59,326)	$ (59,411)
Below market leases and deferred revenue, accumulated amortization	31,775	30,087
Lease Intangibles
Finite-Lived Intangible Assets [Line Items]
Lease Intangibles	240,785	246,644
Accumulated Amortization	(143,122)	(145,596)
In-place leases
Finite-Lived Intangible Assets [Line Items]
Lease Intangibles	95,661	98,615
Accumulated Amortization	(61,765)	(63,269)
Leasing costs
Finite-Lived Intangible Assets [Line Items]
Lease Intangibles	83,850	84,844
Accumulated Amortization	(46,253)	(46,096)
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Lease Intangibles	61,274	63,185
Accumulated Amortization	(35,104)	(36,231)
Above market leases
Finite-Lived Intangible Assets [Line Items]
Lease Intangibles	12,747	13,431
Accumulated Amortization	$ (10,235)	$ (10,675)