Investments in and Advances to Joint Ventures - Additional Information (Detail) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2021 USD ($) a Property	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) a Property Shoppingcenter	Dec. 31, 2020 USD ($) Shoppingcenter	Dec. 31, 2019 USD ($) Shoppingcenter
Schedule Of Equity Method Investments [Line Items]
Company's proportionate share of gain on sale of joint venture assets			$ 36,600	$ 1,800	$ 4,200
Proceeds from sale of joint venture interests			$ 0	$ 140,441	$ 0
Unconsolidated Joint Ventures [Member]
Schedule Of Equity Method Investments [Line Items]
Number of properties sold | Shoppingcenter			6	2	6
Proceeds from sale of joint venture assets			$ 135,500	$ 27,700	$ 356,300
DDRM Properties Joint Venture [Member]
Schedule Of Equity Method Investments [Line Items]
Gross fair value of properties acquired	$ 134,000		$ 134,000
Estimated fair value of properties percentage	100.00%		100.00%
DDRM Properties Joint Venture [Member]
Schedule Of Equity Method Investments [Line Items]
Acquisition of equity interest percentage	80.00%
Number of properties existing for mortgage loans | Property	6		6
Previous ownership interest stepped up due to change in control	20.00%
Purchase price of assets at company share	$ 107,200		$ 107,200
Mortgage debt repaid at closing	73,900		73,900
Gain (loss) on sale of joint venture interest	$ 7,200		$ 7,200
DDRTC Joint Venture [Member]
Schedule Of Equity Method Investments [Line Items]
Gain (loss) on sale of joint venture interest				$ 45,600
Percentage of joint venture sold		15.00%		15.00%
Proceeds from sale of joint venture interests				$ 140,400
BRE DDR Joint Ventures
Schedule Of Equity Method Investments [Line Items]
Gain (loss) on sale of joint venture interest		$ (200)
Richmond Hill [Member] | Undeveloped Land [Member]
Schedule Of Equity Method Investments [Line Items]
Area of Land | a	70		70
Net proceeds after closing costs and foreign currency translation			$ 22,100
Amounts held in escrow	$ 6,100		6,100
Aggregate gain on transaction			14,900
Gain reported by the joint venture			2,800
Gain (loss) on sale of joint venture interest			12,100
Richmond Hill [Member] | Undeveloped Land [Member] | Amount Of Funds In Escrow Was Received From Canadian Taxing Authority In2022 After Receipt Of Certain Tax Certificates
Schedule Of Equity Method Investments [Line Items]
Amounts held in escrow	2,100		2,100
Richmond Hill [Member] | Undeveloped Land [Member] | Amount Of Funds In Escrow To Be Released Upon Final Dissolution Of Partnership
Schedule Of Equity Method Investments [Line Items]
Amounts held in escrow	$ 4,000		$ 4,000