Summary of Significant Accounting Policies - Disaggregation of Revenue by Segment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 4,078,993	$ 3,343,681	$ 2,080,463
Rental (including reimbursable)	3,958,150	3,299,657	2,064,958
Other	120,843	44,024	15,505
Retail
Disaggregation of Revenue [Line Items]
Revenues	3,193,600	2,730,100	1,709,800
Industrial
Disaggregation of Revenue [Line Items]
Revenues	559,100	495,400	271,100
Other
Disaggregation of Revenue [Line Items]
Revenues	205,500	74,200	84,100
U.S.
Disaggregation of Revenue [Line Items]
Rental (including reimbursable)	3,475,100	2,995,300	1,912,300
U.S. | Retail
Disaggregation of Revenue [Line Items]
Revenues	2,754,200	2,455,900	1,566,700
U.S. | Industrial
Disaggregation of Revenue [Line Items]
Revenues	515,400	465,200	261,500
U.S. | Other
Disaggregation of Revenue [Line Items]
Revenues	205,500	74,200	84,100
U.K.
Disaggregation of Revenue [Line Items]
Rental (including reimbursable)	417,700	273,500	148,500
U.K. | Retail
Disaggregation of Revenue [Line Items]
Revenues	374,000	243,300	138,900
U.K. | Industrial
Disaggregation of Revenue [Line Items]
Revenues	43,700	30,200	9,600
U.K. | Other
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Other
Disaggregation of Revenue [Line Items]
Rental (including reimbursable)	65,400	30,900	0
Other | Retail
Disaggregation of Revenue [Line Items]
Revenues	65,400	30,900	4,200
Other | Industrial
Disaggregation of Revenue [Line Items]
Revenues	0	0	0
Other | Other
Disaggregation of Revenue [Line Items]
Revenues	$ 0	$ 0	$ 0