Gladstone Land Corporation Annual report pursuant to Section 13 and 15(d)

Real Estate and Intangible Assets - Carrying Value of Lease Intangibles and Accumulated Amortization for Each Intangible Asset or Liability Class (Detail) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Estimated Amortization Expense	$ 3,732	$ 4,827
Lease intangibles:
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	7,233	8,271
Accumulated amortization	(3,501)	(3,444)
Estimated Amortization Expense	3,732	4,827
Leasehold interest – land
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	3,498	3,498
In-place lease values
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	1,968	2,293
Leasing costs
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	1,640	2,066
Tenant relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	$ 127	$ 414