Investments (Investment Income (Loss) Summarized) - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Net Investment Income [Line Items]
Gain on sale of investment real estate	$ 0	$ 8,936
Real Estate Investments [Member] | Pineda Landings Melbourne [Member]
Net Investment Income [Line Items]
Gain on sale of investment real estate		6,476
Real Estate Investments Sale Price		18,500
Real Estate Investments [Member] | Sorrento Hills Village Sorrento [Member]
Net Investment Income [Line Items]
Gain on sale of investment real estate		$ 2,460
Real Estate Investments Sale Price	13,418
Real Estate Investments [Member] | HCI Corporate Oaks [Member]
Net Investment Income [Line Items]
Gain on sale of investment real estate	$ 2,497