Transactions with Curbline Properties - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Mar. 31, 2026
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Fee and other income	$ 2,808	$ 1,979	$ 13,981	$ 4,305
Rental income	30,662	85,536	62,112	177,262
Other income (expense), net	(6,469)	$ (20,332)	$ (12,426)	$ (35,998)
Fee percentage of aggregate amount of gross revenue			2.00%
Amounts payable to curbline	31,300		$ 31,300
Amounts receivable from curbline	300		300
Shared Services Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Fee and other income	600		1,200
Rental income	400		800
Other income (expense), net	800		1,500
Other [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Fee and other income	800		1,500
Separation and Distributions Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Estimated cost of redevelopment projects	30,900		30,900
Separation and Distributions Agreement [Member] | Forecast [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Annual rent expense					$ 800
Curbline [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Incremental fair value of services provided to Curbline	600		1,200
Embedded Lease Charge	$ 400		$ 800