Discontinued Operations - Schedule of Assets and Liabilities Associated with Curbline Properties (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Liabilities and Equity
Liabilities related to discontinued operations	$ 0	$ 58,994
Curbline [Member]
Assets
Land		316,212
Buildings		622,414
Fixtures and tenant improvements		58,676
Total real estate rental property		997,302
Less: Accumulated depreciation		(136,168)
Total real estate assets		861,134
Construction in progress and land		13,504
Total real estate assets, net		874,638
Cash and cash equivalents		566
Restricted cash		155
Accounts receivable		11,528
Intangible assets, net		34,330
Other assets		415
Assets related to discontinued operations		921,632
Liabilities and Equity
Mortgage indebtedness, net		25,758
Below market leases, net		21,243
Accounts payable and other liabilities		11,993
Liabilities related to discontinued operations		$ 58,994