Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) ft² RetailShoppingCenter TenantAccount ShoppingCenter shares	Dec. 31, 2020 USD ($) shares	Dec. 31, 2019 USD ($)
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Unsecured public and private notes	$ 200,000
General partners' capital account, units outstanding | shares	171,213,000	169,680,000
Partners' capital account, units | shares	171,973,054	170,445,000
Tenant and other receivables	$ 153,091	$ 143,633
Pre-development costs	1,500	10,500	$ 2,500
Tax basis of investments, unrealized appreciation (depreciation), net	2,600,000	2,700,000
Restricted cash and cash equivalent	$ 1,930	2,377
Cash and cash equivalents and restricted original maturity	90 days or less
Percentage of pro-rata annual base rent	20.00%
Number of tenant | TenantAccount	0
Number of shopping center | ShoppingCenter	0
Management, transaction, and other fee [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Tenant and other receivables	$ 13,200	9,900
Parent Company [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Restricted cash and cash equivalent	$ 1,900	2,400
Leases less than 10,000 sqft [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Operating leases, tenant space terms | ft²	10,000
Leases greater then 10,000 sqft [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Operating leases, tenant space terms | ft²	10,000
Minimum [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Expected useful lives of the properties and other intangible assets	10 years
Operating leases, lease year range	3 years
Operating leases, lease year range for tenant space greater than 10,000 sq ft	5 years
Maximum [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Expected useful lives of the properties and other intangible assets	40 years
Operating leases, lease year range	7 years
Maximum [Member] | Revenue [Member] | Customer Concentration Risk [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Concentration risk, percentage	5.00%
Land Improvements [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Property, plant and equipment, useful life	15 years
Building and Improvements [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Property, plant and equipment, useful life	40 years
Tenant Improvements [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Property, plant and equipment, useful life	10 years
Furniture and Equipment [Member] | Minimum [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Property, plant and equipment, useful life	3 years
Furniture and Equipment [Member] | Maximum [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Property, plant and equipment, useful life	7 years
Refundable deposits - development
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Nonrefundable deposits and other predevelopment costs	$ 10,800	25,300
Operating Partnership [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership percentage of outstanding common partnership units	99.60%
General partners' capital account, units outstanding | shares	171,213,008
Parent company, ownership percentage of outstanding common partnership units of operating partnership	99.60%
Wholly Owned Properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of real estate properties | RetailShoppingCenter	302
Unconsolidated Properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of real estate properties | RetailShoppingCenter	103
Partially Owned Properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of real estate properties | RetailShoppingCenter	113
Consolidated Properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of real estate properties | RetailShoppingCenter	10
Development and Redevelopment [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Interest costs capitalized	$ 4,200	4,400	4,200
Maximum period of time in company capitalizes interest costs	12 months
Development [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Internal costs for employees directly related to development and redevelopment program	$ 11,300	$ 10,200	$ 20,400