Real Estate and Other Activities - Other Investment Activities - Additional Information (Detail) - 3 months ended Mar. 31, 2024 - Syndicated Term Loan [Member] £ in Millions, $ in Millions	GBP (£)	USD ($)
Business Combination [Line Items]
Gain (loss) on sale of interest in syndicated term loan	£ (6)	$ (7.8)
Proceed from sale of interest in syndicated term loan	£ 90	$ 115.0