Investments in and Advances to Joint Ventures - Additional Information (Detail)	1 Months Ended	6 Months Ended
	Jun. 30, 2017 USD ($) ShoppingCenter Asset	Jun. 30, 2017 USD ($) ShoppingCenter Investment Asset	Jun. 30, 2016 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 ShoppingCenter
Schedule Of Equity Method Investments [Line Items]
Preferred investment interest valuation allowance	$ 76,000,000	$ 76,000,000		$ 76,000,000
Contribution		$ 69,068,000	$ 1,406,000
Unconsolidated Joint Ventures [Member]
Schedule Of Equity Method Investments [Line Items]
Shopping centers owned | ShoppingCenter	149	149			151
BRE DDR Joint Ventures [Member]
Schedule Of Equity Method Investments [Line Items]
Number of unconsolidated investments | Investment		2
Maximum preferred investment fixed distribution deferral	23.50%	23.50%
Redemption of preferred equity in full or in part at partners option		during the first three years
Redemption of preferred investment in full at company option		after seven years
Dividend, cash interest rate		6.50%
Dividend, accrued PIK interest rate		2.00%
BRE DDR Joint Ventures [Member] | Preferred Equity Fixed Dividend Rate [Member]
Schedule Of Equity Method Investments [Line Items]
Preferred equity fixed dividend rate per annum		8.50%
BRE DDR III [Member]
Schedule Of Equity Method Investments [Line Items]
Ownership interest of joint venture partner	95.00%	95.00%
Ownership interest in joint venture	5.00%	5.00%
Redemption of preferred investment in full at company option year		2021
Minimum net asset sales threshold payable	$ 34,300,000	$ 34,300,000
Preferred investment interest valuation allowance				70,000,000
BRE DDR III [Member] | Preferred Equity [Member]
Schedule Of Equity Method Investments [Line Items]
Remaining net asset sale proceeds		49.00%
BRE DDR IV [Member]
Schedule Of Equity Method Investments [Line Items]
Ownership interest of joint venture partner	95.00%	95.00%
Ownership interest in joint venture	5.00%	5.00%
Redemption of preferred investment in full at company option year		2022
Minimum net asset sales threshold payable	$ 26,000,000	$ 26,000,000
Preferred investment interest valuation allowance				$ 6,000,000
BRE DDR IV [Member] | Preferred Equity [Member]
Schedule Of Equity Method Investments [Line Items]
Minimum net asset sales threshold payable	$ 6,000,000	$ 6,000,000
Number of assets with nominal interest | ShoppingCenter	6	6
DDRM Properties [Member]
Schedule Of Equity Method Investments [Line Items]
Properties Owned | Asset	52	52
Transaction Value at 100%	$ 1,050,000,000
Percentage of ownership acquired/ transferred	80.00%
DDR interest	20.00%	20.00%
New financing 100%	$ 706,700,000	$ 706,700,000
DDR pro rata share new financing	$ 141,300,000	$ 141,300,000
Debt instrument maturity date	2022-07
Contribution	$ 46,900,000
DDR Domestic Retail Fund I [Member]
Schedule Of Equity Method Investments [Line Items]
Properties Owned | Asset	3	3
DDR interest	20.00%	20.00%
Aggregate book value	$ 74,000,000	$ 74,000,000
Pro rata Aggregate book value	$ 14,800,000	$ 14,800,000