Impairment - Narrative (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Impaired Long-Lived Assets Held and Used [Line Items]
Total Seaport		$ 0	$ 0	$ 30,741
Provision for impairment		$ 672,492	0	$ 13,068
Minimum
Impaired Long-Lived Assets Held and Used [Line Items]
Weighted market scenarios, assumed lease-up period				24 months
Maximum
Impaired Long-Lived Assets Held and Used [Line Items]
Weighted market scenarios, assumed lease-up period				48 months
Fair Value, Nonrecurring | Measurement Input, Cap Rate | Discounted Cash Flow | Minimum
Impaired Long-Lived Assets Held and Used [Line Items]
Real estate investment property, measurement input		0.055
Real estate investment property, discount rate		8.50%
Real estate investment property, restaurant multiple		8.3
Fair Value, Nonrecurring | Measurement Input, Cap Rate | Discounted Cash Flow | Maximum
Impaired Long-Lived Assets Held and Used [Line Items]
Real estate investment property, measurement input		0.0675
Real estate investment property, discount rate		13.30%
Real estate investment property, restaurant multiple		11.8
Fair Value, Nonrecurring | Measurement Input, Cap Rate | Valuation, Income Approach
Impaired Long-Lived Assets Held and Used [Line Items]
Real estate investment property, measurement input				0.0875
Seaport Segment
Impaired Long-Lived Assets Held and Used [Line Items]
Total Seaport	$ 709,500	$ 709,493	0	$ 0
Provision for impairment		672,492	0	0
Buildings and equipment
Impaired Long-Lived Assets Held and Used [Line Items]
Provision for impairment		$ 0	$ 0	13,068
110 North Wacker
Impaired Long-Lived Assets Held and Used [Line Items]
Provision for impairment				$ 17,700