Segment Reporting - Geographic Information for Revenue from Tenants and Investments in Real Estate (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from tenants	$ 109,286	$ 132,415
Investments in real estate, gross:	4,690,305		$ 4,777,606
Real Estate Investing
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from tenants	109,286	132,415
Investments in real estate, gross:	4,690,305		4,777,606
Acquired Intangible Liabilities, Gross	33,487		36,593
United States | Real Estate Investing
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from tenants	80,029	93,352
Investments in real estate, gross:	3,567,207		3,629,799
Acquired Intangible Liabilities, Gross	24,705		24,808
United Kingdom | Real Estate Investing
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from tenants	11,469	23,818
Investments in real estate, gross:	540,454		554,792
Acquired Intangible Liabilities, Gross	2,687		5,565
Europe | Real Estate Investing
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from tenants	16,984	14,487
Investments in real estate, gross:	545,206		554,965
Acquired Intangible Liabilities, Gross	6,075		6,200
Canada | Real Estate Investing
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue from tenants	804	$ 758
Investments in real estate, gross:	37,438		38,050
Acquired Intangible Liabilities, Gross	$ 20		$ 20