Investments in and Advances to Joint Ventures - Revenues Earned by Company's Unconsolidated Joint Ventures and Interest Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue from contracts:
Total revenue from contracts with customers	$ 6,140	$ 6,271	$ 10,560
Other	200	700	1,000
Revenue and other income	5,500	6,800	10,600
Asset and Property Management Fees [Member]
Revenue from contracts:
Total revenue from contracts with customers	5,150	5,692	7,845
Unconsolidated Joint Ventures [Member]
Revenue from contracts:
Total revenue from contracts with customers	5,300	6,100	9,600
Unconsolidated Joint Ventures [Member] | Asset and Property Management Fees [Member]
Revenue from contracts:
Total revenue from contracts with customers	5,100	5,700	7,700
Unconsolidated Joint Ventures [Member] | Leasing Commissions And Development Fees[Member]
Revenue from contracts:
Total revenue from contracts with customers	$ 200	$ 400	$ 1,900