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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

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