Acquisitions of Rental Property - Purchase Price Allocation for Real Estate Acquisitions (Detail) - USD ($) $ in Thousands		Jun. 30, 2022	Jun. 30, 2021
Business Acquisition [Line Items]
Non-real estate liabilities assumed		$ (8,051)	$ 0
Business combination, recognized identifiable assets acquired and liabilities assumed, assets		378,048	284,325
Land
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, property, plant, and equipment		77,088	48,477
Land Improvements
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, property, plant, and equipment		26,002	15,844
Buildings and Improvements
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, property, plant, and equipment		253,500	197,064
Acquired In-Place Leases
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, Intangible assets	[1]	29,585	22,729
Acquired Above-Market Lease
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, Intangible assets	[2]	0	211
Acquired Below-Market Leases
Business Acquisition [Line Items]
Business combination, recognized identifiable assets acquired and liabilities assumed, Intangible assets	[3]	$ 76	$ 0

[1] The weighted average amortization period for acquired in-place leases is 20 years and 14 years for acquisitions completed during the six months ended June 30, 2022 and 2021, respectively.

[2] The weighted average amortization period for the acquired above-market leases is 10 years for acquisitions completed during the six months ended June 30, 2021. There were no above-market leases acquired during the six months ended June 30, 2022.

[3] The weighted average amortization period for acquired below-market leases is nine years for acquisitions completed during the six months ended June 30, 2022. There were no below-market leases acquired during the six months ended June 30, 2021. (g) Excludes $17.4 million building expansion agreed to as a forward commitment in connection with a prior acquisition (see Note 18).