Mortgage Notes Payable - Schedule of Mortgage Notes Payable (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2026	Dec. 31, 2025
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 4,848,075	$ 5,068,946
Arrowhead Towne Center
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 353,090	352,776
Effective Interest Rate (as a percent)	6.75%
Monthly Debt Service	$ 1,921
Crabtree Mall
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 156,104	155,793
Effective Interest Rate (as a percent)	6.57%
Monthly Debt Service	$ 811
Danbury Fair Mall
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 152,612	152,455
Effective Interest Rate (as a percent)	6.59%
Monthly Debt Service	$ 836
Fashion Outlets of Chicago
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 299,598	299,554
Effective Interest Rate (as a percent)	4.61%
Monthly Debt Service	$ 1,145
Fashion Outlets of Niagara Falls USA
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 75,242	76,995
Effective Interest Rate (as a percent)	6.52%
Monthly Debt Service	$ 727
Freehold Raceway Mall
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 399,460	399,376
Effective Interest Rate (as a percent)	3.94%
Monthly Debt Service	$ 1,300
Fresno Fashion Fair
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 324,950	324,851
Effective Interest Rate (as a percent)	3.67%
Monthly Debt Service	$ 971
Green Acres Mall
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 365,974	364,632
Effective Interest Rate (as a percent)	6.62%
Monthly Debt Service	$ 1,819
Kings Plaza Shopping Center
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 524,072	528,906
Effective Interest Rate (as a percent)	3.71%
Monthly Debt Service	$ 2,414
Los Cerritos Center
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 464,217	465,727
Effective Interest Rate (as a percent)	5.77%
Monthly Debt Service	$ 2,506
Pacific View
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 69,236	69,691
Effective Interest Rate (as a percent)	5.45%
Monthly Debt Service	$ 399
Queens Center
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 523,562	523,346
Effective Interest Rate (as a percent)	5.45%
Monthly Debt Service	$ 2,349
Santa Monica Place
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 300,000	300,000
Effective Interest Rate (as a percent)	5.15%
Monthly Debt Service	$ 1,287
SanTan Village Regional Center
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 219,733	219,687
Effective Interest Rate (as a percent)	4.34%
Monthly Debt Service	$ 788
South Plains Mall
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 197,653	200,000
Effective Interest Rate (as a percent)	4.59%
Monthly Debt Service	$ 703
Victor Valley, Mall of
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 84,089	84,033
Effective Interest Rate (as a percent)	6.85%
Monthly Debt Service	$ 476
Vintage Faire Mall
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 0	212,728
Effective Interest Rate (as a percent)	0.00%
Monthly Debt Service	$ 0
Washington Square
Mortgage loans payable on real estate
Carrying Amount of Mortgage Notes	$ 338,483	$ 338,396
Effective Interest Rate (as a percent)	5.63%
Monthly Debt Service	$ 1,580