Investments (Real Estate Investments) - Additional Information (Detail) $ in Thousands				1 Months Ended		12 Months Ended
	Dec. 18, 2023 USD ($)	Sep. 19, 2023 USD ($)	Jul. 01, 2022 USD ($) a	Jan. 31, 2023 USD ($)	May 31, 2022 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2023 USD ($)
Schedule Of Investments [Line Items]
Property, Plant and Equipment, Transfers and Changes				$ 8,135
Real Estate Capitalized Cost	$ 17,270
Assumed liability						$ 4	$ 0	$ 0
Real estate investments						67,893	71,388
Proceeds from sales of real estate investments						21,746	667	0
Pineda Landings Melbourne [Member]
Schedule Of Investments [Line Items]
Real Estate Investments Sale Price									$ 18,500
Real Estate Investments [Member]
Schedule Of Investments [Line Items]
Market value							4,446
Payment for Acquisition, Lease, Held-for-Investment	$ 12,824
Depreciation and amortization expenses under real estate investments						$ 1,147	$ 1,956	$ 1,922
Proceeds from sales of real estate investments					$ 667
Proceeds from sale of land			$ 14,500
Area of Land Sell | a			1.5
Real Estate Investments [Member] | Pineda Landings Melbourne [Member]
Schedule Of Investments [Line Items]
Real Estate Investments Sale Price									18,500
Real Estate Investments [Member] | Sorrento Hills Village Sorrento [Member]
Schedule Of Investments [Line Items]
Real Estate Investments Sale Price									$ 13,418
Real Estate Investments [Member] | Haines City, Florida [Member]
Schedule Of Investments [Line Items]
Payment for Acquisition, Lease, Held-for-Investment		$ 3,393
Acquisition costs		100
Assumed liability		4
Real estate investments		$ 1,582