Investments in Real Estate - Schedule of Allocation of Acquisitions (Details) € in Millions, £ in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($)	Mar. 31, 2025 GBP (£)	Mar. 31, 2025 EUR (€)
Real Estate [Abstract]
Land	$ 41.2	£ 149.8	€ 56.1
Buildings and improvements	164.7	179.7	153.4
Lease intangible assets	39.8	54.3	35.0
Other assets	5.8	63.4	0.0
Lease intangible liabilities	(10.3)	(3.5)	(4.8)
Total	$ 241.2	£ 443.7	€ 239.7
Weighted average amortization period for acquired lease intangible assets (in years)	7 years 2 months 12 days	7 years 2 months 12 days	7 years 2 months 12 days
Allocated to other assets, financing receivables with above-market terms | $	$ 5.8
Allocated to other assets, finance lease right-of-use assets | £		£ 63.4
Weighted average amortization period for acquired lease intangible liabilities (in years)	14 years 1 month 6 days	14 years 1 month 6 days	14 years 1 month 6 days