Weingarten Realty Investors (WRI) 10-K 26 Feb 21 2020 FY Annual report Financial data

Cover Page

Cover Page - USD ($) $ in Billions	12 Months Ended
	Dec. 31, 2020	Feb. 15, 2021	Jun. 30, 2020
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2020
Document Transition Report	false
Entity Registrant Name	Weingarten Realty Investors
Entity File Number	1-9876
Entity Incorporation, State or Country Code	TX
Entity Tax Identification Number	74-1464203
Entity Address, Address Line One	2600 Citadel Plaza Drive, Suite 125
Entity Address, City or Town	Houston,
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77008
City Area Code	(713)
Local Phone Number	866-6000
Title of 12(b) Security	Common Shares of Beneficial Interest, $.03 par value
Trading Symbol	WRI
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Smaller Reporting Company	false
Emerging Growth Company	false
Entity Shell Company	false
ICFR Auditor Attestation Flag	true
Entity Public Float			$ 2.3
Entity Common Stock, Shares Outstanding (in shares)		127,744,937
Documents incorporated by reference	Portions of the Registrant’s Proxy Statement relating to its Annual Meeting of Shareholders to be held on April 26, 2021 have been incorporated by reference to Part III of this Form 10-K.
Amendment Flag	false
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2020
Entity Central Index Key	0000828916
Current Fiscal Year End Date	--12-31

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Revenues:
Rentals, net	$ 422,339	$ 472,446	$ 517,836
Other	11,578	14,179	13,311
Total Revenues	433,917	486,625	531,147
Operating Expenses:
Depreciation and amortization	149,930	135,674	161,838
Operating	91,075	94,620	90,554
Real estate taxes, net	62,564	60,813	69,268
Impairment loss	24,153	74	10,120
General and administrative	37,388	35,914	25,040
Total Operating Expenses	365,110	327,095	356,820
Other Income (Expense):
Interest expense, net	(61,148)	(57,601)	(63,348)
Interest and other income, net	7,143	11,003	2,807
Gain on sale of property	65,402	189,914	207,865
Total Other Income	11,397	143,316	147,324
Income Before Income Taxes and Equity in Earnings of Real Estate Joint Ventures and Partnerships	80,204	302,846	321,651
Provision for Income Taxes	(451)	(1,040)	(1,378)
Equity in Earnings of Real Estate Joint Ventures and Partnerships, net	39,206	20,769	25,070
Net Income	118,959	322,575	345,343
Less: Net Income Attributable to Noncontrolling Interests	(6,810)	(7,140)	(17,742)
Net Income Attributable to Common Shareholders	$ 112,149	$ 315,435	$ 327,601
Earnings Per Common Share - Basic:
Net income attributable to common shareholders (dollars per share)	$ 0.88	$ 2.47	$ 2.57
Earnings Per Common Share - Diluted:
Net income attributable to common shareholders (dollars per share)	$ 0.88	$ 2.44	$ 2.55

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net Income	$ 118,959	$ 322,575	$ 345,343
Other Comprehensive Loss:
Net unrealized gain on derivatives			1,379
Reclassification adjustment of derivatives and designated hedges into net income	(890)	(887)	(4,302)
Retirement liability adjustment	123	153	85
Total			(2,838)
Total	(767)	(734)
Comprehensive Income	118,192	321,841	340,964
Comprehensive Income Attributable to Noncontrolling Interests	(6,810)	(7,140)	(17,742)
Comprehensive Income Adjusted for Noncontrolling Interests	$ 111,382	$ 314,701	323,222
Cumulative Effect, Period of Adoption, Adjustment [Member]
Other Comprehensive Loss:
Cumulative effect adjustment of new accounting standards			$ (1,541)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
ASSETS
Property	$ 4,246,334	$ 4,145,249
Accumulated Depreciation	(1,161,970)	(1,110,675)
Property, net *	3,084,364	3,034,574
Investment in Real Estate Joint Ventures and Partnerships, net	369,038	427,947
Total	3,453,402	3,462,521
Unamortized Lease Costs, net	174,152	148,479
Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net*	81,016	83,639
Cash and Cash Equivalents *	35,418	41,481
Restricted Deposits and Escrows	12,338	13,810
Other, net	205,074	188,004
Total Assets	3,961,400	3,937,934
LIABILITIES AND EQUITY
Debt, net *	1,838,419	1,732,338
Accounts Payable and Accrued Expenses	104,990	111,666
Other, net	217,489	217,770
Total Liabilities	2,160,898	2,061,774
Commitments and Contingencies (see Note 17)	0	0
Shareholders' Equity:
Common Shares of Beneficial Interest - par value, $.03 per share; shares authorized: 275,000; shares issued and outstanding:127,313 in 2020 and 128,702 in 2019	3,866	3,905
Additional Paid-In Capital	1,755,770	1,779,986
Net Income Less Than Accumulated Dividends	(128,813)	(74,293)
Accumulated Other Comprehensive Loss	(12,050)	(11,283)
Total Shareholders' Equity	1,618,773	1,698,315
Noncontrolling Interests	181,729	177,845
Total Equity	1,800,502	1,876,160
Total Liabilities and Equity	3,961,400	3,937,934
Consolidated Variable Interest Entities [Member]
ASSETS
Property, net *	193,271	196,636
Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net*	9,489	10,548
Cash and Cash Equivalents *	10,089	8,135
Total Assets	225,719	228,954
LIABILITIES AND EQUITY
Debt, net *	$ 44,177	$ 44,993

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - $ / shares shares in Thousands	Dec. 31, 2020	Dec. 31, 2019
Common Shares of Beneficial Interest - par value, $.03 per share; shares authorized: 275,000; shares issued and outstanding:128,103 in 2020 and 128,702 in 2019
Common Shares of Beneficial Interest; par value (dollars per share)	$ 0.03	$ 0.03
Common Shares of Beneficial Interest - shares authorized (shares)	275,000	275,000
Common Shares of Beneficial Interest - shares issued (shares)	127,313	128,702
Common Shares of Beneficial Interest - shares outstanding (shares)	127,313	128,702

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities:
Net Income	$ 118,959	$ 322,575	$ 345,343
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	149,930	135,674	161,838
Amortization of debt deferred costs and intangibles, net	2,752	3,194	3,146
Non-cash lease expense	1,242	1,241	0
Impairment loss	24,153	74	10,120
Equity in earnings of real estate joint ventures and partnerships, net	(39,206)	(20,769)	(25,070)
Gain on sale of property	(65,402)	(189,914)	(207,865)
Distributions of income from real estate joint ventures and partnerships	29,803	20,083	19,605
Changes in accrued rent, accrued contract receivables and accounts receivable, net	1,154	10,001	(2,807)
Changes in unamortized lease costs and other assets, net	(8,024)	(14,298)	(8,632)
Changes in accounts payable, accrued expenses and other liabilities, net	5,744	(975)	(2,315)
Other, net	3,122	3,164	(7,403)
Net cash provided by operating activities	224,227	270,050	285,960
Cash Flows from Investing Activities:
Acquisition of real estate and land, net	(42,209)	(218,849)	(1,265)
Development and capital improvements	(137,059)	(183,188)	(155,528)
Proceeds from sale of property and real estate equity investments, net	119,442	445,319	607,486
Real estate joint ventures and partnerships - Investments	(8,671)	(74,602)	(38,096)
Real estate joint ventures and partnerships - Distribution of capital	22,228	2,482	6,936
Proceeds from investments		10,375	1,500
Other, net	(114)	2,437	11,921
Net cash (used in) provided by investing activities	(46,383)	(16,026)	432,954
Cash Flows from Financing Activities:
Proceeds from issuance of debt			638
Principal payments of debt	(22,977)	(55,556)	(257,028)
Changes in unsecured credit facilities	40,000	(5,000)	5,000
Proceeds from issuance of common shares of beneficial interest, net	212	1,098	6,760
Repurchase of common shares of beneficial interest, net	(32,107)		(18,564)
Common share dividends paid	(165,958)	(203,297)	(382,464)
Debt issuance and extinguishment costs paid	(6)	(3,271)	(1,271)
Distributions to noncontrolling interests	(4,076)	(6,782)	(19,155)
Contributions from noncontrolling interests	1,150	326	1,465
Other, net	(1,617)	(2,388)	508
Net cash used in financing activities	(185,379)	(274,870)	(664,111)
Net (decrease) increase in cash, cash equivalents and restricted cash equivalents	(7,535)	(20,846)	54,803
Cash, cash equivalents and restricted cash equivalents at January 1	55,291	76,137	21,334
Cash, cash equivalents and restricted cash equivalents at December 31	47,756	55,291	76,137
Supplemental disclosure of cash flow information:
Cash paid for interest (net of amount capitalized of $8,184, $13,586 and $7,938, respectively)	58,744	55,413	65,507
Cash paid for income taxes	793	1,526	1,545
Cash paid for amounts included in operating lease liabilities	$ 2,678	$ 2,785	$ 0

Consolidated Statements of Ca_2

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Cash Flows [Abstract]
Capitalized interest paid	$ 8,184	$ 13,586	$ 7,938

Consolidated Statements of Equi

Consolidated Statements of Equity - USD ($) $ in Thousands	Common Shares of Beneficial Interest	Additional Paid-In Capital	Net Income Less Than Accumulated DividendsCumulative Effect, Period of Adoption, Adjustment [Member]	Net Income Less Than Accumulated Dividends	Accumulated Other Comprehensive Loss [Member]Cumulative Effect, Period of Adoption, Adjustment [Member]	Accumulated Other Comprehensive Loss [Member]	Noncontrolling Interests	Cumulative Effect, Period of Adoption, Adjustment [Member]	Total
Increase (Decrease) in Equity [Roll Forward]
Cumulative effect adjustment of new accounting standards	$ 3,897	$ 1,772,066		$ (137,065)		$ (6,170)	$ 177,114		$ 1,809,842
Beginning Balance at Dec. 31, 2017	3,897	1,772,066		(137,065)		(6,170)	177,114		1,809,842
Increase (Decrease) in Equity [Roll Forward]
Net Income				327,601			17,742		345,343
Shares repurchased and cancelled	(20)	(18,544)							(18,564)
Shares issued under benefit plans, net	16	13,471							13,487
Cumulative effect adjustment of new accounting standards	3,893	1,766,993	$ 5,497	(186,431)	$ (1,541)	(10,549)	176,793	$ 3,956	1,750,699
Dividends paid - common shares				(382,464)					(382,464)
Distributions to noncontrolling interests							(19,155)		(19,155)
Contributions from noncontrolling interests							1,465		1,465
Other comprehensive income						(2,838)			(2,838)
Other, net							(373)		(373)
Ending Balance at Dec. 31, 2018	3,893	1,766,993	5,497	(186,431)	(1,541)	(10,549)	176,793	3,956	1,750,699
Increase (Decrease) in Equity [Roll Forward]
Cumulative effect adjustment of new accounting standards	3,893	1,766,993	5,497	(186,431)	(1,541)	(10,549)	176,793	3,956	1,750,699
Net Income				315,435			7,140		322,575
Shares issued under benefit plans, net	12	11,046							11,058
Cumulative effect adjustment of new accounting standards	3,905	1,779,986	5,497	(74,293)	$ (1,541)	(11,283)	177,845	3,956	1,750,699
Dividends paid - common shares				(203,297)					(203,297)
Distributions to noncontrolling interests							(6,782)		(6,782)
Contributions from noncontrolling interests							326		326
Other comprehensive income						(734)			(734)
Other, net		1,947					368		2,315
Ending Balance at Dec. 31, 2019	3,905	1,779,986		(74,293)		(11,283)	177,845		1,876,160
Increase (Decrease) in Equity [Roll Forward]
Cumulative effect adjustment of new accounting standards	3,905	1,779,986		(74,293)		(11,283)	177,845		1,876,160
Net Income				112,149			6,810		118,959
Shares repurchased and cancelled	(50)	(32,057)							(32,107)
Shares issued under benefit plans, net	11	7,841							7,852
Cumulative effect adjustment of new accounting standards	3,866	1,755,770	(711)	(128,813)		(12,050)	181,729	(711)	1,876,160
Dividends paid - common shares				(165,958)					(165,958)
Distributions to noncontrolling interests							(4,076)		(4,076)
Contributions from noncontrolling interests							1,150		1,150
Other comprehensive income						(767)			(767)
Ending Balance at Dec. 31, 2020	3,866	1,755,770	(711)	(128,813)		(12,050)	181,729	(711)	1,800,502
Increase (Decrease) in Equity [Roll Forward]
Cumulative effect adjustment of new accounting standards	$ 3,866	$ 1,755,770	$ (711)	$ (128,813)		$ (12,050)	$ 181,729	$ (711)	$ 1,800,502

Consolidated Statements of Eq_2

Consolidated Statements of Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Stockholders' Equity [Abstract]
Common dividend paid per share (in dollars per share)	$ 1.30	$ 1.58	$ 2.98

Summary of Significant Accounti

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Note 1. Summary of Significant Accounting Policies Business Weingarten Realty Investors is a REIT organized under the Texas Business Organizations Code. We currently operate, and intend to operate in the future, as a REIT. We, and our predecessor entity, began the ownership of shopping centers and other commercial real estate in 1948. Our primary business is leasing space to tenants in the shopping centers we own or lease. These centers may be mixed-use properties that have both retail and residential components. We also provide property management services for which we charge fees to either joint ventures where we are partners or other outside owners. We operate a portfolio of neighborhood and community shopping centers, totaling approximately 30.2 million square feet of gross leasable area that is either owned by us or others. We have a diversified tenant base, with two of our largest tenants each comprising only 2.6% of base minimum rental revenues during 2020. Total revenues generated by our centers located in Houston and its surrounding areas was 20.6% of total revenue for the year ended December 31, 2020, and an additional 9.8% of total revenue was generated in 2020 from centers that are located in other parts of Texas. Also, in Florida and California, an additional 20.4% and 16.4%, respectively, of total revenue was generated in 2020. In March 2020, the World Health Organization declared the novel coronavirus (“COVID-19”) a pandemic. The impact of COVID-19 continues to evolve and most cities and states have imposed measures to control its spread including social distancing and limiting group gatherings. These measures have created risks and uncertainties surrounding our operations and geographic concentrations. The pandemic resulted in, at certain locations, the closure or limited operations of non-essential businesses and consumer/employee stay-at-home provisions. Given this continually evolving situation, the duration and severity of these matters and their ultimate effect are uncertain at this time. Basis of Presentation Our consolidated financial statements include the accounts of our subsidiaries, certain real estate joint ventures or partnerships and VIEs which meet the guidelines for consolidation. All intercompany balances and transactions have been eliminated. Our financial statements are prepared in accordance with GAAP. Such statements require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. We have evaluated subsequent events for recognition or disclosure in our consolidated financial statements. Leases As part of our operations, we are primarily a lessor of commercial retail space. In certain instances, we are also a lessee, primarily of ground leases associated with our operations. Our contracts are reviewed to determine if they qualify, under the GAAP definition, as a lease. A contract is determined to be a lease when the right to obtain substantially all of the economic benefits and to direct the use of an identified asset is transferred to a customer over a defined period of time for consideration. During this review, we evaluate among other items, asset specification, substitution rights, purchase options, operating rights and control over the asset during the contract period. We have elected accounting policy practical expedients, both as a lessor and a lessee, to not separate any nonlease components (primarily common area maintenance) within a lease contract for all classes of underlying assets (primarily real estate assets). As a lessor, we have further determined that this policy will be effective only on a lease that has been classified as an operating lease and the revenue recognition pattern and timing is the same for both types of components. We have determined to account for both the lease and nonlease components as a single component when the lease component is the predominate component of a contract. Therefore, Accounting Standards Codification ("ASC") No. 842, “Leases” will be applied to these lease contracts for both types of components. Additionally, for lessee leases, we have also elected not to apply the overall balance sheet recognition requirements to short-term leases that are less than 12 months from the lease commencement date. Significant judgments and assumptions are inherent in not only determining if a contract contains a lease but also the lease classification, terms, payments, and, if needed, discount rates. Judgments include the nature of any options with the determination if they will be exercised, evaluation of implicit discount rates, assessment and consideration of “fixed” payments for straight-line rent revenue calculations and the evaluation of asset identification and substitution rights. The determination of the discount rate used in a lease is the incremental borrowing rate of the lease contract. For lessee leases, this rate is often not readily determinable as the lessor’s initial direct costs and expected residual value are at the end of the lease term and are unknown. Therefore, as the lessee, our incremental borrowing rate will be used. Selected discount rates will reflect rates that we would have to pay to borrow on a fully collateralized basis over a term similar to the lease. Additionally, we will obtain lender quotes with similar terms and if not available, we consider the asset type, risk free rates and financing spreads to account for creditworthiness and collateral. Our lessor leases are principally related to our shopping centers. We believe risk of an inadequate residual value of the leased asset upon the termination of these leases is low due to our ability to re-lease the space, the long-lived nature of our real estate assets and the propensity of real estate assets to hold their value over a long period of time. In April 2020, the Financial Accounting Standards Board ("FASB") published a Staff Q&A regarding Accounting for Lease Concessions Related to the Effects of the COVID-19 pandemic. As the pandemic is expected to result in numerous tenant rent and lease concessions, the intent of the publication was to provide relief to lessors in assessing whether a lease modification exists. The FASB publication provides for an election to bypass the lease-by-lease analysis and account for lease concessions, directly related to the effects of the COVID-19 pandemic, consistent with how those concessions would be accounted for as though enforceable rights and obligations for those concessions existed in the original contract. Accordingly, an entity would not have to analyze each contract to determine whether those rights exist in the contract and can elect to apply or not apply lease modification guidance to those contracts. Such election is required to be applied consistently to leases with similar characteristics and circumstances. This election is available for COVID-19 related concessions that do not result in a substantial increase in the rights of the lessor or the obligations of the lessee and the total payments required by the modified lease are substantially the same as or less than total payments required by the original lease. As of April 1, 2020, we elected to not apply lease modification guidance to those contracts. As such, any lease deferral concessions will remain recorded in Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net, and rent abatements will be recorded as a reduction to Rentals, net in our consolidated financial statements. Subject to this guidance, as of December 31, 2020, included in Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net we have deferred lease concessions not currently due of $9.6 million and have recorded rent abatements of $3.2 million (see Note 9 for additional information). Discussions are continuing with tenants as the effects of COVID-19 and related mandates evolve. Revenue Recognition At the inception of a revenue producing contract, we determine if a contract qualifies as a lease and if not, then as a customer contract. Additionally, we exclude all taxes assessed by a governmental authority that is collected by us from Revenue. Based on this determination, the appropriate GAAP is applied to the contract, including its revenue recognition. Rentals, net Rental revenue is primarily derived from operating leases and, therefore, is generally recognized on a straight-line basis over the term of the lease, which typically begins the date the tenant takes control of the space. Variable rental revenue consists primarily of tenant reimbursements of taxes, maintenance expenses and insurance, is subject to our interpretation of lease provisions and is recognized over the term of a lease as services are provided. Additionally, variable rental revenue based on a percentage of tenants’ sales is recognized only after the tenant exceeds its sales breakpoint. In circumstances where we provide a tenant improvement allowance for improvements that are owned by the tenant, we recognize the allowance as a reduction of rental revenue on a straight-line basis over the term of the lease. Further, at the lease commencement date and on an ongoing basis, we consider the collectability of a lease when determining revenue to be recognized. Prior to the adoption of ASC No. 842, rental revenues were recognized under ASC No. 840, “Leases.” Other Other revenue consists of both customer contract revenue and income from contractual agreements with third parties or real estate joint ventures or partnerships, which do not meet the definition of a lease or a customer contract. Revenues which do not meet the definition of a lease or customer contract are recognized as the related services are performed under the applicable agreement. We have identified primarily three types of customer contract revenue: (1) management contracts with real estate joint ventures or partnerships or third parties, (2) licensing and occupancy agreements and (3) certain non-tenant contracts. At contract inception, we assess the services provided in these contracts and identify any performance obligations that are distinct. To identify the performance obligation, we consider all services, whether explicitly stated or implied by customary business practices. We have identified the following substantive services, which may or may not be included in each contract type, that represent performance obligations: ​ ​ ​ ​ ​ ​ ​ Contract Type Performance Obligation Description Elements of Performance Obligations Payment Timing Management Agreements ​ ● ● ● ​ ● ● ● ​ Typically monthly or quarterly ​ ​ ● ● ​ ● ● ​ ​ Licensing and Occupancy Agreements ​ ● ​ ● ● ● ​ Typically monthly ​ ​ ● ​ ● ● ​ ​ Non-tenant Contracts ​ ● ​ ● ● ​ Typically monthly ​ ​ ● ​ ● ● ​ ​ ​ We also assess collectability of the customer contract revenue prior to recognition. None of these customer contracts include a significant financing component. Property Real estate assets are stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method, generally over estimated useful lives of 18-40 years for buildings and 10-20 years for parking lot surfacing and equipment. Major replacements where the betterment extends the useful life of the asset are capitalized, and the replaced asset and corresponding accumulated depreciation are removed from the accounts. All other maintenance and repair items are charged to expense as incurred. Acquisitions of properties are accounted for utilizing the acquisition of a nonfinancial asset method and, accordingly, the results of operations of an acquired property are included in our results of operations from the date of acquisition. Estimates of fair values are based upon estimated future cash flows and other valuation techniques. Fair values are used to allocate and record the purchase price of acquired property among land, buildings on an “as if vacant” basis, tenant improvements, other identifiable intangibles and any goodwill or gain on purchase. Other identifiable intangible assets and liabilities include the effect of out-of-market leases, the value of having leases in place (“as is” versus “as if vacant” and absorption costs), out-of-market assumed mortgages and tenant relationships. Depreciation and amortization is computed using the straight-line method, generally over estimated useful lives of 40 years for buildings and over the lease term for other identifiable intangible assets. Costs associated with the successful acquisition of an asset are capitalized as incurred. Property also includes costs incurred in the development and redevelopment of operating properties. These properties are carried at cost, and no depreciation is recorded on these assets until rent commences or no later than one year from the completion of major construction. These costs include preacquisition costs directly identifiable with the specific project, development and construction costs, interest, insurance and real estate taxes. Indirect development costs, including salaries and benefits, travel and other related costs that are directly attributable to the development of the property, are also capitalized. The capitalization of such costs ceases at the earlier of one year from the completion of major construction or when the property, or any completed portion, becomes available for occupancy. Also included in property is costs for tenant improvements paid by us, including reimbursements to tenants for improvements that are owned by us and will remain our property after the lease expires. Property identified for sale is reviewed to determine if it qualifies as held for sale based on the following criteria: management has approved and is committed to the disposal plan, the assets are available for immediate sale, an active plan is in place to locate a buyer, the sale is probable and expected to qualify as a completed sale within a year, the sales price is reasonable in relation to the current fair value, and it is unlikely that significant changes will be made to the sales plan or that the sales plan will be withdrawn. Upon qualification, these properties are segregated and classified as held for sale at the lower of cost or fair value less costs to sell. Also for disposal transactions, the presence of a significant financing component is considered and evaluated, if necessary. We have adopted the practical expedient in which the promised amount of consideration is not adjusted for the effects of a significant financing component when we expect, at contract inception, that the period between the sale and payment will be one year or less. Our individual property disposals do not qualify for discontinued operations presentation; thus, the results of operations through the disposal date and any associated gains are included in income from continuing operations. Some of our properties are held in single purpose entities. A single purpose entity is a legal entity typically established at the request of a lender solely for the purpose of owning a property or group of properties subject to a mortgage. There may be restrictions limiting the entity’s ability to engage in an activity other than owning or operating the property, assuming or guaranteeing the debt of any other entity, or dissolving itself or declaring bankruptcy before the debt has been repaid. Most of our single purpose entities are 100% owned by us and are consolidated in our consolidated financial statements. Real Estate Joint Ventures and Partnerships To determine the method of accounting for real estate joint ventures and partnerships, management determines whether an entity is a VIE and, if so, determines which party is the primary beneficiary by analyzing whether we have both the power to direct the entity’s significant economic activities and the obligation to absorb potentially significant losses or receive potentially significant benefits. Significant judgments and assumptions inherent in this analysis include the design of the entity structure, the nature of the entity’s operations, future cash flow projections, the entity’s financing and capital structure, and contractual relationships and terms. We consolidate a VIE when we have determined that we are the primary beneficiary. Primary risks associated with our involvement with our VIEs include the potential funding of the entities’ debt obligations or making additional contributions to fund the entities’ operations or capital activities. Non-variable interest real estate joint ventures and partnerships over which we have a controlling financial interest are consolidated in our consolidated financial statements. In determining if we have a controlling financial interest, we consider factors such as ownership interest, authority to make decisions, kick-out rights and substantive participating rights. Real estate joint ventures and partnerships where we do not have a controlling financial interest, but have the ability to exercise significant influence, are accounted for using the equity method. Management continually analyzes and assesses reconsideration events, including changes in the factors mentioned above, to determine if the consolidation or equity method treatment remains appropriate. Unamortized Lease Costs, net Lease costs represent the initial direct costs incurred in origination, negotiation and processing of a lease agreement. Upon the adoption of ASC No. 842, such costs include outside broker commissions and other independent third party costs, as well as internal leasing commissions paid directly related to completing a lease and are amortized over the life of the lease on a straight-line basis. Prior to the adoption of ASC No. 842, such costs included outside broker commissions and other independent third party costs, as well as salaries and benefits, travel and other internal costs directly related to completing a lease and are amortized over the life of the lease on a straight-line basis. Costs related to salaries and benefits, supervision, administration, unsuccessful origination efforts and other activities are charged to expense as incurred. Also included are in place lease costs which are amortized over the life of the applicable lease term on a straight-line basis. Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net Receivables are relatively short-term in nature with terms due in less than one year. Receivables include rental revenue, amounts billed and currently due from customer contracts and receivables attributable to straight-line rental commitments. Accrued contract receivables includes amounts due from customers for contracts that do not qualify as a lease in which we earned the right to the consideration through the satisfaction of the performance obligation, but before the customer pays consideration or before payment is due. Individual leases are assessed for collectability and upon the determination that the collection of rents is not probable, accrued rent and accounts receivables are reduced as an adjustment to rental revenues. Revenue from leases where collection is deemed to be less than probable is recorded on a cash basis until collectability is determined to be probable. Further, we assess whether operating lease receivables, at a portfolio level, are appropriately valued based upon an analysis of balances outstanding, historical bad debt levels and current economic trends. An allowance for the uncollectible portion of the portfolio is recorded as an adjustment to rental revenues. Management’s estimate of the collectability of accrued rents and accounts receivable is based on the best information available to management at the time of evaluation. Prior to the adoption of ASC No. 842, an allowance for the uncollectible portion of accrued rents and accounts receivable was determined based upon an analysis of balances outstanding, historical bad debt levels, tenant creditworthiness and current economic trends. At December 31, 2018, we had an allowance for doubtful accounts totaling $6.9 million (which included charges to bad debt of $2.4 million and deductions of $3.0 million for the year ended December 31, 2018) that was re-characterized upon the adoption of ASC No. 842 as of January 1, 2019, to be appropriately reflected as reductions in Revenues for uncollectible amounts. The duration of the COVID-19 pandemic and its impact on our tenants’ operations, including, in some cases, their ability to resume full operations as governmental and legislative measures are eased, or in some cases reimposed, has caused uncertainty in our ongoing ability to collect rents when due. Considering the potential impact of these uncertainties, our collection assessment also took into consideration the type of tenant and current discussions with the tenants, as well as recent rent collection experience and tenant bankruptcies based on the best information available to management at the time of evaluation. For the year ended December 31, 2020, we reduced rental revenues by $36.1 million due to lease related reserves and write-offs, which included $15.0 million for straight-line rent receivables. Cash and Cash Equivalents All highly liquid investments with original maturities of three months or less are considered cash equivalents. Cash and cash equivalents are primarily held at major financial institutions in the U.S. We had cash and cash equivalents in certain financial institutions in excess of federally insured levels. We have diversified our cash and cash equivalents amongst several banking institutions in an attempt to minimize exposure to any one of these entities. We believe we are not exposed to any significant credit risk and regularly monitor the financial stability of these financial institutions. Restricted Deposits and Escrows Restricted deposits are held or restricted for a specific use or in a qualified escrow account for the purposes of completing like-kind exchange transactions. Escrows consist of deposits held by third parties or lenders for a specific use; including, capital improvements, rental income and taxes. Our restricted deposits and escrows consist of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ ​ 2020 ​ 2019 ​ Restricted deposits ​ $ 12,122 ​ $ 12,793 ​ Escrows ​ ​ 216 ​ ​ 1,017 ​ Total ​ $ 12,338 ​ $ 13,810 ​ ​ Other Assets, net Other assets include an asset related to the debt service guaranty (see Note 6 for further information), tax increment revenue bonds, right-of-use assets, investments held in a grantor trust, deferred tax assets (see Income Taxes), the net value of above-market leases, deferred debt costs associated with our revolving credit facilities and other miscellaneous receivables. Right-of-use assets are amortized to achieve the recognition of rent expense on a straight-line basis after adjusting for the corresponding lease liabilities’ interest over the lives of the leases. Investments held in a grantor trust are adjusted to fair value at each period with changes included in our Consolidated Statements of Operations. Above-market leases are amortized as adjustments to rental revenues over terms of the acquired leases. Deferred debt costs, including those classified in debt, are amortized primarily on a straight-line basis, which approximates the effective interest rate method, over the terms of the debt. Other miscellaneous receivables are evaluated for credit risk and an allowance is established if there is an estimate for lifetime credit losses. These are based on available information, including historical loss information adjusted for current conditions and forecasts for future economic conditions. Prior to adoption of ASC No. 326, a reserve was applied to the carrying amount of other miscellaneous receivables when it becomes apparent that conditions existed that would lead to our inability to fully collect the outstanding amounts due. Such conditions include delinquent or late payments on receivables, deterioration in the ongoing relationship with the borrower and other relevant factors. Our tax increment revenue bonds have been classified as held to maturity and are recorded at amortized cost offset by a recognized credit loss (see Note 19 for further information). Due to the recognized credit loss, interest on these bonds is recorded at an effective interest rate when cash payments are received. The bonds are evaluated for credit losses based on discounted estimated future cash flows. Any future receipts in excess of the amortized basis will be recognized as revenue when received. The credit risk associated with the amortized value of these bonds is low as the bonds are earmarked for repayments from sales and property taxes associated with a government entity. At December 31, 2020, no credit allowance has been recorded. Other Liabilities, net Other liabilities include non-qualified benefit plan liabilities (see Retirement Benefit Plans and Deferred Compensation Plan), lease liabilities and the net value of below-market leases. Lease liabilities are amortized to rent expense using the effective interest rate method, over the lease life. Below-market leases are amortized as adjustments to rental revenues over terms of the acquired leases. Sales of Real Estate Sales of real estate include the sale of tracts of land, property adjacent to shopping centers, operating properties, newly developed properties, investments in real estate joint ventures and partnerships and partial sales of real estate joint ventures and partnerships in which we participate. These sales primarily fall under two types of contracts (1) sales of nonfinancial assets (primarily real estate) and (2) sales of investments in real estate joint ventures and partnerships of substantially nonfinancial assets. We review the sale contract to determine appropriate accounting guidance. Profits on sales of real estate are primarily not recognized until (a) a contract exists including: each party’s rights are identifiable along with the payment terms, the contract has commercial substance and the collection of consideration is probable; and (b) the performance obligation to transfer control of the asset has occurred; including transfer to the buyer of the usual risks and rewards of ownership. We recognize gains on the sale of real estate to joint ventures and partnerships in which we participate to the extent we receive consideration from the joint venture or partnership, if it meets the sales criteria in accordance with GAAP. Impairment Our property, including right-of-use assets, is reviewed for impairment if events or changes in circumstances indicate that the carrying amount of the property, any capitalized costs and any identifiable intangible assets, may not be recoverable. If such an event occurs, a comparison is made of the current and projected operating cash flows of each such property into the foreseeable future, with consideration of applicable holding periods, on an undiscounted basis to the carrying amount of such property. If we determine the carrying amount is not recoverable, our basis in the property is reduced to its estimated fair value to reflect impairment in the value of the asset. Fair values are determined by management utilizing cash flow models, market capitalization rates and market discount rates, or by obtaining third-party broker or appraisal estimates. We review economic considerations at each reporting period, including the effects of tenant bankruptcies, the suspension of tenant expansion plans for new development projects, declines in real estate values, and any changes to plans related to our new development properties including land held for development, to identify properties where we believe market values may be deteriorating. Determining whether a property is impaired and, if impaired, the amount of write-down to fair value requires a significant amount of judgment by management and is based on the best information available to management at the time of evaluation. If market conditions deteriorate or management’s plans for certain properties change, additional write-downs could be required in the future. Our investment in real estate joint ventures and partnerships is reviewed for impairment each reporting period. We evaluate various factors, including operating results of the investee, our ability and intent to hold the investment and our views on current market and economic conditions, when determining if there is a decline in the investment value. We will record an impairment charge if we determine that a decline in the estimated fair value of an investment below its carrying amount is other than temporary. The ultimate realization is dependent on a number of factors, including the performance of each investment and market conditions. There is no certainty that impairments will not occur in the future if market conditions decline or if management’s plans for these investments change. See Note 10 for additional information regarding impairments. Income Taxes We have elected to be treated as a REIT under the Internal Revenue Code of 1986, as amended. As a REIT, we generally will not be subject to corporate level federal income tax on taxable income we distribute to our shareholders. To be taxed as a REIT, we must meet a number of requirements including defined percentage tests concerning the amount of our assets and revenues that come from, or are attributable to, real estate operations. As long as we distribute at least 90% of the taxable income of the REIT (without regard to capital gains or the dividends paid deduction) to our shareholders as dividends, we will not be taxed on the portion of our income we distribute as dividends unless we have ineligible transactions. The Tax Relief Extension Act of 1999 gave REITs the ability to conduct activities which a REIT was previously precluded from doing as long as such activities are performed in entities which have elected to be treated as taxable REIT subsidiaries under the IRS code. These activities include buying or developing properties with the express purpose of selling them. We conduct certain of these activities in a taxable REIT subsidiary that we have created. We calculate and record income taxes in our consolidated financial statements based on the activities in this entity. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between our carrying amounts of existing assets and liabilities and their respective tax bases and net operating loss and tax credit carry-forwards. These are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. A valuation allowance for deferred tax assets is established for those assets when we do not consider the realization of such assets to be more likely than not. On March 27, 2020, the President signed the Coronavirus Aid, Relief and Economic Security (“CARES”) Act into law. The enacted CARES Act tax provisions include, but are not limited to, changes to the NOL deduction, the business interest expense limitation and depreciation. Management’s evaluation of deferred taxes and the associated valuation allowance includes the impact of the CARES Act. Additionally, GAAP prescribes a recognition threshold and measurement attribute for the financial statement recognition of a tax position taken, or expected to be taken, in a tax return. A tax position may only be recognized in the consolidated financial statements if it is more likely than not that the tax position will be sustained upon examination. We believe it is more likely than not that our tax positions will be sustained in any tax examinations. In addition, we are subject to the State of Texas business tax (“Texas Franchise Tax”), which is determined by applying a tax rate to a base that considers both revenues and expenses. Therefore, the Texas Franchise Tax is considered an income tax and is accounted for accordingly. Share-Based Compensation We have both share options and share awards outstanding. Since 2012, our employee long-term incentive program under our Amended and Restated 2010 Long-Term Incentive Plan grants only awards that incorporate both service-based and market-based measures for share awards to promote share ownership among the participants and to emphasize the importance of total shareholder r

Newly Issued Accounting Pronoun

Newly Issued Accounting Pronouncements	12 Months Ended
	Dec. 31, 2020
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Newly Issued Accounting Pronouncements	Note 2. Newly Issued Accounting Pronouncements Adopted In June 2016, the FASB issued Accounting Standard Update ("ASU") No. 2016-13, "Measurement of Credit Losses on Financial Instruments." This ASU was further updated by ASU No. 2018-19, "Codification Improvements to Topic 326, Financial Instruments - Credit Losses," ASU No. 2019-04, "Codification Improvements to Topic 326, Financial Instruments - Credit Losses," ASU No. 2019-05, "Targeted Transition Relief," ASU No. 2019-11, "Codification Improvements to Topic 326, Financial Instruments - Credit Losses" and ASU No. 2020-02, “Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 119.” These ASUs amend prior guidance on the impairment of financial instruments, and adds an impairment model that is based on expected losses rather than incurred losses with the recognition of an allowance based on an estimate of expected credit losses. The provisions of ASU No. 2016-13, as amended in subsequently issued amendments, were effective for us as of January 1, 2020. In identifying all of our financial instruments covered under this guidance, the majority of our instruments result from operating leasing transactions, which are not within the scope of the new standard and are to remain governed by the recently issued leasing guidance and other previously issued guidance. Upon adoption at January 1, 2020, we recognized, using the modified retrospective approach, a cumulative effect for credit losses, which has decreased each of retained earnings and other In August 2018, the FASB issued ASU No. 2018-13, "Changes to the Disclosure Requirements for Fair Value Measurement." This ASU amends and removes several disclosure requirements including the valuation processes for Level 3 fair value measurements. The ASU also modifies some disclosure requirements and requires additional disclosures for changes in unrealized gains and losses included in other comprehensive income for recurring Level 3 fair value measurements and requires the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements. The provisions of ASU No. 2018-13 were effective for us as of January 1, 2020 using a prospective transition method for amendments effecting changes in unrealized gains and losses, significant unobservable inputs used to develop Level 3 fair value measurements and narrative description on uncertainty of measurements. The remaining provisions of the ASU were not applicable to us. The adoption of this ASU did not have a material impact to our consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-14, "Changes to the Disclosure Requirements for Defined Benefit Plans." This ASU clarifies current disclosures and removes several disclosures requirements including accumulated other comprehensive income expected to be recognized over the next fiscal year and amount and timing of plan assets expected to be returned to the employer. The ASU also requires additional disclosures for the weighted-average interest crediting rates for cash balance plans and explanations for significant gains and losses related to changes in the benefit plan obligation. The provisions of ASU No. 2018-14 are effective for us as of December 31, 2020 using a retrospective basis for all periods presented. The adoption of this ASU did not have a material impact to our consolidated financial statements. See Note 15 for additional information. In December 2019, the FASB issued ASU No. 2019-12, "Simplifying the Accounting for Income Taxes." This ASU clarifies/simplifies current disclosures and removes several disclosures requirements. Simplification includes franchise taxes based partially on income as an income-based tax; entities should reflect enacted tax law and rate changes in the interim period that includes the enactment date; and allowing entities to allocate consolidated tax amounts to individual legal entities under certain elections. The provisions of ASU No. 2019-12 are effective for us as of January 1, 2021; however, we early adopted the provisions as permitted at December 31, 2020. The adoption of this ASU did not have a material impact to our consolidated financial statements. Not Yet Adopted In March 2020, the FASB issued ASU No. 2020-04, “Reference Rate Reform (Topic 848)”, as amended by ASU No. 2021-01. This ASU contains practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts. The guidance in this ASU is optional and may be elected over time as reference rate reform activities occur. At January 1, 2020, we elected to apply the hedge accounting expedients related to probability and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with past presentation. The adoption of this portion of the ASU did not have a material impact to our consolidated financial statements. We continue to evaluate the impact of the guidance and may apply other elections as applicable as additional changes in the market occur. ​ In August 2020, the FASB issued ASU No. 2020-06, “Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity.” The guidance in this ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. This simplification results by removing major separation models required under current GAAP. Additionally, it removes certain settlement conditions that are required for equity contracts to qualify for the derivative scope exception and simplifies the diluted earnings per share calculation. The provisions of ASU No. 2020-06 are effective for us as of January 1, 2022 using either a modified retrospective method or a fully retrospective method, and early adoption is permitted beginning for us as of January 1, 2021. Although we are still assessing the impact of this ASU's adoption, we do not believe this ASU will have a material impact to our consolidated financial statements.

Property

Property	12 Months Ended
	Dec. 31, 2020
Real Estate [Abstract]
Property	Note 3. Property Our property consists of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2020 2019 Land ​ $ 948,622 ​ $ 911,521 Land held for development ​ 39,936 ​ 40,667 Land under development ​ 19,830 ​ 53,076 Buildings and improvements ​ 3,082,509 ​ 2,898,867 Construction in-progress ​ 155,437 ​ 241,118 Total ​ $ 4,246,334 ​ $ 4,145,249 ​ During the year ended December 31, 2020, we sold seven centers and other property. Aggregate gross sales proceeds from these transactions approximated $194.2 million and generated gains of approximately $65.4 million, which includes the December 2020 transaction discussed below. In addition, for the year ended December 31, 2020, we acquired one center, our partner’s interest in a center and other property with an aggregate gross purchase price of approximately $166.6 million, including the December 2020 transaction discussed below, and we invested $79.4 million in new development projects. In December 2020, we acquired our partner’s 42.25% interest in a center in an unconsolidated joint venture and redeemed our 57.75% interest in the related unconsolidated joint venture while simultaneously disposing of a wholly owned center to our former partner. The transaction resulted in the consolidation of the property in our consolidated financial statements. See Note 16 for additional information.

Investment In Real Estate Joint

Investment In Real Estate Joint Ventures And Partnerships	12 Months Ended
	Dec. 31, 2020
Equity Method Investments and Joint Ventures [Abstract]
Investment In Real Estate Joint Ventures And Partnerships	Note 4. Investment in Real Estate Joint Ventures and Partnerships We own interests in real estate joint ventures or limited partnerships and had tenancy-in-common interests in which we exercise significant influence, but do not have financial and operating control. We account for these investments using the equity method, and our interests ranged for the periods presented from 20%to 90% in both 2020 and 2019. Combined condensed financial information of these ventures (at 100%) is summarized as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 2019 Combined Condensed Balance Sheets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ASSETS ​ ​ ​ ​ Property ​ $ 1,093,504 ​ $ 1,378,328 Accumulated depreciation ​ (275,802) ​ (331,856) Property, net ​ 817,702 ​ 1,046,472 Other assets, net ​ 81,285 ​ 108,366 Total Assets ​ $ 898,987 ​ $ 1,154,838 ​ ​ ​ ​ ​ ​ ​ LIABILITIES AND EQUITY ​ ​ Debt, net (primarily mortgages payable) ​ $ 192,674 ​ $ 264,782 Amounts payable to Weingarten Realty Investors and Affiliates ​ 9,836 ​ 11,972 Other liabilities, net ​ 15,340 ​ 25,498 Total Liabilities ​ 217,850 ​ 302,252 Equity ​ 681,137 ​ 852,586 Total Liabilities and Equity ​ $ 898,987 ​ $ 1,154,838 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 2019 2018 Combined Condensed Statements of Operations ​ ​ ​ ​ ​ ​ Revenues, net ​ $ 124,409 ​ $ 135,258 ​ $ 133,975 Expenses: ​ ​ ​ Depreciation and amortization ​ 35,971 ​ 32,126 ​ 32,005 Interest, net ​ 9,175 ​ 9,664 ​ 11,905 Operating ​ 24,775 ​ 25,046 ​ 24,112 Real estate taxes, net ​ 16,733 ​ 18,070 ​ 18,839 General and administrative ​ 601 ​ 551 ​ 696 Provision for income taxes ​ 121 ​ 133 ​ 138 Total ​ 87,376 ​ 85,590 ​ 87,695 Gain on dispositions ​ 47,002 ​ 2,009 ​ 9,495 Net income ​ $ 84,035 ​ $ 51,677 ​ $ 55,775 ​ Our investment in real estate joint ventures and partnerships, as reported in our Consolidated Balance Sheets, differs from our proportionate share of the entities’ underlying net assets due to basis differences, which arose upon the transfer of assets to the joint ventures. The net positive basis differences, which totaled $10.7 million and $9.0 million at December 31, 2020 and 2019, respectively, are generally amortized over the useful lives of the related assets. We recorded joint venture fee income included in Other revenues for the year ended December 31, 2020, 2019 and 2018 of $5.3 million, $6.5 million and $6.1 million, respectively. Additionally, as a result of COVID-19, for the year ended December 31, 2020, our joint venture and partnerships have reduced revenues by $6.9 million due to lease related reserves and write-offs, which includes $3.1 million for straight-line rent receivables. Of these amounts for the year ended December 31, 2020, our share totaled $2.5 million, which includes $.9 million for straight-line rent receivables. For additional information, see Note 1. During 2020, we sold two centers and our interest in two centers, ranging from 20% to 50%, at an aggregate gross value of approximately $148.3 million, of which our share of the gain, included in equity earnings in real estate joint ventures and partnerships, totaled $23.5 million. Also during 2020, we invested an additional $8.7 million in a 90% owned unconsolidated real estate joint venture for a mixed-use new development. In December 2020, we acquired our partner’s 42.25% interest in a center at an unconsolidated real estate joint venture for approximately $115.2 million. The transaction resulted in the consolidation of the property in our consolidated financial statements. For additional information, see Note 16. During 2019, a parcel of land was sold with gross sales proceeds of approximately $2.3 million, of which our share of the gain, included in equity earnings in real estate joint ventures and partnerships, totaled $1.1 million. In July 2019, a 51% owned unconsolidated real estate joint venture acquired a center with a gross purchase price of $52.6 million. Also during 2019, we invested $47.6 million in a 90% owned unconsolidated real estate joint venture for a mixed-use new development.

Identified Intangible Assets An

Identified Intangible Assets And Liabilities	12 Months Ended
	Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Identified Intangible Assets And Liabilities	Note 5. Identified Intangible Assets and Liabilities Identified intangible assets and liabilities associated with our property acquisitions are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Identified Intangible Assets: ​ ​ Above-market leases (included in Other Assets, net) ​ $ 23,877 ​ $ 23,830 Above-market leases - Accumulated Amortization ​ (12,551) ​ (12,145) In place leases (included in Unamortized Lease Costs, net) ​ 235,082 ​ 196,207 In place leases - Accumulated Amortization ​ (102,772) ​ (92,918) ​ ​ $ 143,636 ​ $ 114,974 Identified Intangible Liabilities: ​ ​ Below-market leases (included in Other Liabilities, net) ​ $ 92,855 ​ $ 95,240 Below-market leases - Accumulated Amortization ​ (34,647) ​ (32,326) Above-market assumed mortgages (included in Debt, net) ​ 7,694 ​ 3,446 Above-market assumed mortgages - Accumulated Amortization ​ (2,408) ​ (1,987) ​ ​ $ 63,494 ​ $ 64,373 ​ These identified intangible assets and liabilities are amortized over the applicable lease terms or the remaining lives of the assumed mortgages, as applicable. The net amortization of above-market and below-market leases increased rental revenues by $7.8 million, $4.6 million and $12.8 million in 2020, 2019 and 2018, respectively. The significant year over year change in rental revenues from 2020 to 2019 is primarily due to the write-offs for multiple tenant fallouts of off-market lease intangibles in 2020, and the change from 2019 to 2018 is primarily due to a write-off of a below-market lease intangible from the termination of a tenant’s lease in 2018. The estimated net amortization of these intangible assets and liabilities will increase rental revenues for each of the next five years as follows (in thousands): ​ ​ ​ ​ ​ 2021 $ 4,691 2022 ​ 4,357 2023 ​ 4,172 2024 ​ 4,032 2025 ​ 3,234 ​ The amortization of the in place lease intangible assets recorded in depreciation and amortization, was $19.4 million, $14.9 million and $29.8 million in 2020, 2019 and 2018, respectively. The significant year over year change in depreciation and amortization from 2020 to 2019 is primarily due to net acquisitions throughout late 2019 and 2020, and the change from 2019 to 2018 is primarily due to the write-off of in-place lease intangibles from the termination of tenant leases in 2018. The estimated amortization of these intangible assets will increase depreciation and amortization for each of the next five years as follows (in thousands): ​ ​ ​ ​ ​ 2021 $ 19,580 2022 ​ 17,103 2023 ​ 15,549 2024 ​ 13,491 2025 ​ 12,204 ​ The net amortization of above-market assumed mortgages decreased net interest expense by $.4 million, $.3 million and $.7 million in 2020, 2019 and 2018, respectively. The estimated net amortization of these intangible liabilities will decrease net interest expense for each of the next five years as follows (in thousands): ​ ​ ​ ​ ​ 2021 $ 789 2022 ​ 643 2023 ​ 638 2024 ​ 638 2025 ​ 638 ​ The following table details the identified intangible assets and liabilities and the remaining weighted-average amortization period associated with our asset acquisitions in 2020 and 2019 as follows: ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2020 ​ 2019 Identified intangible assets and liabilities subject to amortization (in thousands): ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ ​ In place leases ​ $ 48,562 ​ $ 30,253 Above-market leases ​ ​ 1,901 ​ 1,323 Liabilities: ​ ​ ​ Below-market leases ​ ​ 5,205 ​ 13,762 Above-market assumed mortgages ​ ​ 4,249 ​ ​ — ​ ​ ​ ​ ​ ​ ​ Identified intangible assets and liabilities remaining weighted-average amortization period (in years): ​ ​ ​ Assets: ​ ​ ​ In place leases ​ ​ 7.8 ​ 11.0 Above-market leases ​ ​ 7.1 ​ 7.2 Liabilities: ​ ​ ​ Below-market leases ​ ​ 7.8 ​ 13.5 Above-market assumed mortgages ​ ​ 8.3 ​ ​ — ​

Debt

Debt	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Debt	Note 6. Debt Our debt consists of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2020 2019 Debt payable, net to 2038 (1) ​ $ 1,723,073 ​ $ 1,653,154 Unsecured notes payable under credit facilities ​ ​ 40,000 ​ ​ — Debt service guaranty liability ​ ​ 53,650 ​ ​ 57,380 Finance lease obligation ​ ​ 21,696 ​ ​ 21,804 Total ​ $ 1,838,419 ​ $ 1,732,338 (1) At both December 31, 2020 and 2019, interest rates ranged from 3.3% to 7.0% at a weighted average rate of 3.9% . The allocation of total debt between fixed and variable-rate as well as between secured and unsecured is summarized below (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 2019 As to interest rate (including the effects of interest rate contracts): ​ ​ ​ ​ Fixed-rate debt ​ $ 1,798,419 ​ $ 1,714,890 Variable-rate debt ​ 40,000 ​ 17,448 Total ​ $ 1,838,419 ​ $ 1,732,338 As to collateralization: ​ ​ Unsecured debt ​ $ 1,488,909 ​ $ 1,450,762 Secured debt ​ 349,510 ​ 281,576 Total ​ $ 1,838,419 ​ $ 1,732,338 ​ We maintain a $500 million unsecured revolving credit facility, which was amended and extended on December 11, 2019. This facility expires in March 2024, provides for two consecutive six-month extensions upon our request, and borrowing rates that float at a margin over LIBOR plus a facility fee. At both December 31, 2020 and 2019, the borrowing margin and facility fee, which are priced off a grid that is tied to our senior unsecured credit ratings, were 82.5 and 15 basis points, respectively. The facility also contains a competitive bid feature that allows us to request bids for up to $250 million. Additionally, an accordion feature allows us to increase the facility amount up to $850 million. Additionally, we have a $10 million unsecured short-term facility, which was amended and extended on January 3, 2020, that we maintain for cash management purposes, which matures in March 2021. At both December 31, 2020 and 2019, the facility provided for fixed interest rate loans at a 30-day LIBOR rate plus a borrowing margin, facility fee and an unused facility fee of 125, 10, and 5 basis points, respectively. The following table discloses certain information regarding our unsecured notes payable under our credit facilities (in thousands, except percentages): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 2019 Unsecured revolving credit facility: ​ ​ ​ ​ Balance outstanding ​ $ 40,000 ​ $ — ​ Available balance ​ 458,068 ​ 497,946 ​ Letters of credit outstanding under facility ​ 1,932 ​ 2,054 ​ Variable interest rate (excluding facility fee) ​ 0.94 % — % Unsecured short-term facility: ​ ​ ​ Balance outstanding ​ $ — ​ $ — ​ Variable interest rate (excluding facility fee) ​ — % — % Both facilities: ​ ​ ​ Maximum balance outstanding during the period (1) ​ $ 497,000 ​ $ 5,000 ​ Weighted average balance ​ 74,311 ​ 123 ​ Year-to-date weighted average interest rate (excluding facility fee) ​ 1.0 % 3.3 % (1) At March 31, 2020, we drew down the available balance of our unsecured revolving credit facility to increase liquidity and preserve financial flexibility in light of the uncertainty regarding the COVID-19 pandemic on the markets at that time, which we subsequently repaid due to the stability of the financial markets. Related to a development project in Sheridan, Colorado, we have provided a guaranty for the payment of any debt service shortfalls until a coverage rate of 1.4x is met on tax increment revenue bonds issued in connection with the project. The bonds are to be repaid with incremental sales and property taxes and a PIF to be assessed on current and future retail sales and, to the extent necessary, any amounts we may have to provide under a guaranty. The incremental taxes and PIF are to remain intact until the earlier of the date the bond liability has been paid in full or 2040. Therefore, a debt service guaranty liability equal to the fair value of the amounts funded under the bonds was recorded. As of December 31, 2020 and December 31, 2019, we had $53.7 million and $57.4 million outstanding for the debt service guaranty liability, respectively. During the year ended December 31, 2019, we repaid a $50 million secured fixed-rate mortgage with a 7.0% interest rate from cash from our disposition proceeds. Various leases and properties, and current and future rentals from those leases and properties, collateralize certain debt. At December 31, 2020 and 2019, the carrying value of such assets aggregated $.6 billion and $.5 billion, respectively. Additionally at December 31, 2020 and 2019, investments of $6.0 million and $5.3 million, respectively, included in Restricted Deposits and Escrows are held as collateral for letters of credit totaling $6.0 million and $5.0 million, respectively. Scheduled principal payments on our debt (excluding $40.0 million unsecured notes payable under our credit facilities, $21.7 million of a finance lease obligation, $(3.1) million net premium/(discount) on debt, $(4.5) million of deferred debt costs, $5.3 million of non-cash debt-related items, and $53.7 million debt service guaranty liability) are due during the following years (in thousands): ​ ​ ​ ​ 2021 $ 18,795 2022 ​ ​ 308,298 2023 ​ 348,207 2024 ​ 252,561 2025 ​ 294,232 2026 ​ 277,733 2027 ​ 53,604 2028 ​ 92,159 2029 ​ 70,304 2030 ​ 950 Thereafter ​ 8,569 Total ​ $ 1,725,412 ​ Our various debt agreements contain restrictive covenants, including minimum interest and fixed charge coverage ratios, minimum unencumbered interest coverage ratios, minimum net worth requirements and maximum total debt levels. We are not aware of any non-compliance with our public debt and revolving credit facility covenants as of December 31, 2020.

Lease Obligations

Lease Obligations	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Lease Obligations	Note 7. Lease Obligations Certain of our shopping centers are subject to operating ground leases that cover either partially or the entire center. These ground leases expire at various dates through 2069 with renewal options ranging from five years to 20 years and in some cases, include options to purchase the underlying asset by either the lessor or lessee. Generally, our ground lease variable payments for real estate taxes, insurance and utilities are paid directly by us and are not a component of rental expense. Most of our leases have increasing minimum rental rates during the terms of the leases through escalation provisions and also may include an amount based on a percentage of operating revenues or sublease tenant revenue. Space in our shopping centers is leased to tenants pursuant to agreements that generally provide for terms of 10 years or less and may include multiple options to extend the lease term in increments up to five years, for annual rentals subject to upward adjustments based on operating expense levels, sales volume, or contractual increases as defined in the lease agreements. As of December 31, 2020 and 2019, we were the lessee under ground lease agreements associated with 10 and 12 centers, respectively. Additionally, we were the lessee under administrative lease agreements with four offices as of both December 31, 2020 and 2019. Our right-of-use assets associated with our operating leases totaled $42.8 million and $43.8 million at December 31, 2020 and 2019, respectively. Also, we have two properties under a finance lease that consists of variable lease payments with a purchase option. The right-of-use asset associated with this finance lease at December 31, 2020 and 2019 was $8.7 million and $8.9 million, respectively. Amortization of property under the finance lease is included in depreciation and amortization expense. A schedule of lease costs including weighted average lease terms and weighted-average discount rates is as follows (in thousands, except as noted): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 2019 Lease cost: ​ ​ ​ ​ ​ ​ ​ Operating lease cost: ​ ​ ​ ​ ​ Included in Operating expense ​ $ 2,977 ​ $ 3,044 ​ Included in General and administrative expense ​ 370 ​ 302 ​ Finance cost: ​ ​ ​ Amortization of right-of-use asset (included in Depreciation and Amortization) ​ 182 ​ 174 ​ Interest on lease liability (included in Interest expense, net) ​ 1,635 ​ 1,642 ​ Short-term lease cost ​ — ​ 44 ​ Variable lease cost ​ 244 ​ 309 ​ Sublease income (included in Rentals, net) ​ (26,539) ​ (27,400) ​ Total lease cost ​ $ (21,131) ​ $ (21,885) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ ​ 2020 ​ 2019 ​ Weighted-average remaining lease term (in years): ​ ​ ​ Operating leases ​ 40.7 ​ 41.5 ​ Finance lease ​ 3.0 ​ 4.0 ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average discount rate (percentage): ​ ​ ​ Operating leases ​ 4.9 % 4.9 % Finance lease ​ 7.5 % 7.5 % ​ A reconciliation of our lease liabilities on an undiscounted cash flow basis, which primarily represents shopping center ground leases, for the subsequent five years and thereafter, as calculated as of December 31, 2020, is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ Operating Finance Lease payments: ​ ​ 2021 ​ $ 2,717 ​ $ 1,751 2022 ​ ​ 2,698 ​ ​ 1,759 2023 ​ ​ 2,582 ​ ​ 23,037 2024 ​ ​ 2,222 ​ ​ — 2025 ​ ​ 2,082 ​ ​ — Thereafter ​ ​ 95,105 ​ ​ — Total ​ $ 107,406 ​ $ 26,547 ​ ​ ​ ​ ​ ​ ​ Lease liabilities (1) ​ 42,888 ​ 21,696 Undiscounted excess amount ​ $ 64,518 ​ $ 4,851 (1) Operating lease liabilities are included in Other Liabilities, and finance lease liabilities are included in Debt, net in our Consolidated Balance Sheet. Rental expense for operating leases as defined under ASC No. 840 was $3.1 million in 2018 and was recognized in Operating expense. Minimum revenues under subleases, applicable to the ground lease rentals, under the terms of all non-cancelable tenant leases was $22.8 million in 2018. Future undiscounted, sublease payments applicable to the ground lease rentals, under the terms of all non-cancelable tenant leases, excluding estimated variable payments for the subsequent five years and thereafter ending December 31, as calculated as of December 31, 2020, were as follows (in thousands): ​ ​ ​ ​ ​ Sublease payments: ​ ​ ​ Finance lease (1) ​ $ 10,286 ​ Operating leases: ​ ​ ​ 2021 ​ $ 23,110 ​ 2022 ​ ​ 21,351 ​ 2023 ​ ​ 19,813 ​ 2024 ​ ​ 15,668 ​ 2025 ​ ​ 11,273 ​ Thereafter ​ ​ 36,826 ​ Total ​ $ 128,041 ​ (1) The sublease payments related to our finance lease represents cumulative payments through the lease term ending in 2023.

Common Shares of Beneficial Int

Common Shares of Beneficial Interest	12 Months Ended
	Dec. 31, 2020
Equity [Abstract]
Common Shares of Beneficial Interest	Note 8. Common Shares of Beneficial Interest We have a $200 million share repurchase plan where we may repurchase common shares from time-to-time in open-market or in privately negotiated purchases. The timing and amount of any shares repurchased will be determined by management based on its evaluation of market conditions and other factors. The repurchase plan may be suspended or discontinued at any time, and we have no obligations to repurchase any amount of our common shares under the plan. During the year ended December 31, 2020, 1.7 million common shares were repurchased at an average price of $19.09 per share, and no common shares were repurchased during the year ended December 31, 2019. At December 31, 2020 and as of the date of this filing, $149.4 million of common shares remained available to be repurchased under this plan. ​ Common dividends declared per share were $1.30, $1.58 and $2.98 for the year ended December 31, 2020, 2019 and 2018, respectively. In 2020, the regular dividend rate per share for our common shares was $.395 for the first quarter and $.18 for each subsequent quarter. The regular dividend rate per share for our common shares for each quarter of 2019 and 2018 was $.395. During 2020 and 2018, we paid a special dividend for our common shares in an amount per share of $.36 and $1.40, respectively, which was due to the significant gains on dispositions of property. No special dividend was paid in 2019. Subsequent to December 31, 2020, a first quarter dividend of $.30 per common share was approved by our Board of Trust Managers.

Leasing Operations

Leasing Operations	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Leasing Operations	Note 9. Leasing Operations As a commercial real estate lessor, generally our leases are for terms of 10 years or less and may include multiple options, upon tenant election, to extend the lease term in increments up to five years. Our leases typically do not include an option to purchase. Tenant terminations prior to the lease end date occasionally results in a one-time termination fee based on the remaining unpaid lease payments including variable payments and could be material to the tenant. Many of our leases have increasing minimum rental rates during the terms of the leases through escalation provisions. In addition, the majority of our leases provide for variable rental revenues, such as, reimbursements of real estate taxes, maintenance and insurance and may include an amount based on a percentage of the tenants’ sales. In addition, rent abatements related to the COVID-19 pandemic of $3.2 million were recorded as a reduction to variable lease payments for the year ended December 31, 2020 (see Note 1 for additional information). Future undiscounted, lease payments for tenant leases, excluding estimated variable payments, at December 31, 2020 is as follows (in thousands): ​ ​ ​ ​ 2021 ​ ​ 329,001 2022 ​ ​ 283,036 2023 ​ ​ 239,768 2024 ​ ​ 192,197 2025 ​ ​ 146,270 Thereafter ​ ​ 448,593 Total payments due ​ $ 1,638,865 ​ Variable lease payments recognized in Rentals, net are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 Variable lease payments ​ $ 100,093 ​ $ 109,685 ​ Contingent rentals recognized in Rentals, net are as follows (in thousands): ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2018 Contingent rentals ​ $ 118,703 ​

Impairment

Impairment	12 Months Ended
	Dec. 31, 2020
Asset Impairment Charges [Abstract]
Impairment	Note 10. Impairment The following impairment charges were recorded on the following assets based on the difference between the carrying amount of the assets and the estimated fair value (see Note 19 for additional fair value information) (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2020 2019 2018 Operating expenses: ​ ​ ​ ​ ​ ​ Properties held for sale, under contract for sale or sold (1) ​ $ 24,109 ​ $ — ​ $ 9,969 Land held for development and undeveloped land (1) ​ 44 ​ 74 ​ 151 Total impairment charges ​ 24,153 ​ 74 ​ 10,120 Other financial statement captions impacted by impairment: ​ ​ ​ Equity in earnings of real estate joint ventures and partnerships, net (1) ​ — ​ 3,070 ​ — Net income attributable to noncontrolling interests ​ — ​ (17) ​ (17) Net impact of impairment charges ​ $ 24,153 ​ $ 3,127 ​ $ 10,103 (1) Amounts reported were based on changes in management’s plans or intent for the properties or investments in real estate joint ventures and partnerships, third party offers, recent comparable market transactions and/or a change in market conditions.

Income Tax Considerations

Income Tax Considerations	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income Tax Considerations	Note 11. Income Tax Considerations We qualify as a REIT under the provisions of the Internal Revenue Code, and therefore, no tax is imposed on our taxable income distributed to shareholders. To maintain our REIT status, we must distribute at least 90% of our ordinary taxable income to our shareholders and meet certain income source and investment restriction requirements. Our shareholders must report their share of income distributed in the form of dividends. Taxable income differs from net income for financial reporting purposes primarily because of differences in the timing of recognition of depreciation, rental revenue, repair expense, compensation expense, impairment losses and gain from sales of property. As a result of these differences, the book value of our net real estate assets is in excess of tax basis by $183.1 million and $286.2 million at December 31, 2020 and 2019, respectively. The following table reconciles net income adjusted for noncontrolling interests to REIT taxable income (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2020 2019 2018 Net income adjusted for noncontrolling interests ​ $ 112,149 ​ $ 315,435 ​ $ 327,601 Net loss (income) of taxable REIT subsidiary included above ​ 206 ​ (32,225) ​ (13,496) Net income from REIT operations ​ 112,355 ​ 283,210 ​ 314,105 Book depreciation and amortization ​ 147,660 ​ 132,957 ​ 158,607 Tax depreciation and amortization ​ (82,414) ​ (75,824) ​ (89,700) Book/tax difference on gains/losses from capital transactions ​ (54,476) ​ (89,217) ​ 19,807 Deferred/prepaid/above and below-market rents, net ​ (13,977) ​ (9,332) ​ (15,589) Impairment loss from REIT operations ​ 23,367 ​ 3,118 ​ 10,008 Book/tax on bad debt expense ​ ​ 35,075 ​ ​ 217 ​ ​ (749) Other book/tax differences, net ​ (5,390) ​ (21,575) ​ (12,969) REIT taxable income ​ 162,200 ​ 223,554 ​ 383,520 Dividends paid deduction (1) ​ (162,200) ​ (223,554) ​ (383,520) Dividends paid in excess of taxable income ​ $ — ​ $ — ​ $ — (1) For 2020, 2019 and 2018, the dividends paid deduction includes designated dividends of $114.8 million , $121.2 million and $105.7 million from 2021, 2020 and 2019, respectively. For federal income tax purposes, the cash dividends distributed to common shareholders are characterized as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2020 2019 2018 Ordinary income ​ 79.9 % 65.4 % 42.2 % Capital gain distributions ​ 20.1 % 34.6 % 57.8 % Total ​ 100.0 % 100.0 % 100.0 % ​ Our deferred tax assets and liabilities, including a valuation allowance, consisted of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2020 2019 Deferred tax assets: ​ ​ ​ ​ Impairment loss (1) ​ $ 4,638 ​ $ 4,692 Net operating loss carryforwards (2) ​ 3,216 ​ 3,206 Book-tax basis differential ​ 1,116 ​ 1,101 Other ​ 255 ​ 177 Total deferred tax assets ​ 9,225 ​ 9,176 Valuation allowance (3) ​ (5,551) ​ (5,749) Total deferred tax assets, net of allowance ​ $ 3,674 ​ $ 3,427 Deferred tax liabilities: ​ ​ Book-tax basis differential (1) ​ $ 1,547 ​ $ 1,547 Other ​ 118 ​ 155 Total deferred tax liabilities ​ $ 1,665 ​ $ 1,702 (1) Impairment losses and book-tax basis differential liabilities will not be recognized until the related properties are sold. Realization of impairment losses is dependent upon generating sufficient taxable income in the year the property is sold. (2) We have net operating loss carryforwards of $15.3 million that is an indefinite carryforward. (3) Management believes it is more likely than not that a portion of the deferred tax assets, which primarily consists of impairment losses and net operating losses, will not be realized and established a valuation allowance. However, the amount of the deferred tax asset considered realizable could be reduced if estimates of future taxable income are reduced. We are subject to federal, state and local income taxes and have recorded an income tax provision (benefit) as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Net (loss) income before taxes of taxable REIT subsidiary $ (578) $ 32,602 $ 13,480 Federal (benefit) provision (1) ​ $ (121) ​ $ 6,846 ​ $ 2,831 Valuation allowance decrease ​ (198) ​ (7,038) ​ (2,800) Other ​ (54) ​ 569 ​ (46) Federal income tax (benefit) provision of taxable REIT subsidiary (2) ​ (373) ​ 377 ​ (15) State and local taxes, primarily Texas franchise taxes ​ 824 ​ 663 ​ 1,393 Total ​ $ 451 ​ $ 1,040 ​ $ 1,378 (1) At statutory rate of 21% for the year ended December 31, 2020, 2019 and 2018. (2) All periods from December 31, 2017 through December 31, 2020 are open for examination by the IRS. In addition, a current tax obligation of $.9 million and $.7 million has been recorded at December 31, 2020 and 2019, respectively, in association with these taxes.

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
	Dec. 31, 2020
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Note 12. Supplemental Cash Flow Information Cash, cash equivalents and restricted cash equivalents consists of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 ​ 2018 Cash and cash equivalents ​ $ 35,418 $ 41,481 $ 65,865 Restricted deposits and escrows (see Note 1) ​ 12,338 ​ 13,810 ​ 10,272 Total ​ $ 47,756 ​ $ 55,291 ​ $ 76,137 ​ Supplemental disclosure of non-cash transactions is summarized as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Accrued property construction costs ​ $ 7,158 $ 8,014 $ 11,135 Reduction of debt service guaranty liability ​ (3,730) ​ (3,520) ​ (3,245) Right-of-use assets exchanged for operating lease liabilities ​ 468 ​ 43,729 ​ — Increase in debt, net associated with the acquisition of real estate and land ​ ​ 87,339 ​ ​ — ​ ​ — Increase in other assets, net associated with the disposition of real estate and land ​ ​ 19,930 ​ ​ — ​ ​ — Increase in property associated with related party transaction (see Note 16) ​ ​ 130,663 ​ ​ — ​ ​ — Decrease in investment in real estate joint ventures and partnerships, net associated with related party transaction (see Note 16) ​ ​ (28,823) ​ ​ — ​ ​ — ​

Earnings Per Share

Earnings Per Share	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Earnings Per Share	Note 13. Earnings Per Share Earnings per common share – basic is computed using net income attributable to common shareholders and the weighted average number of shares outstanding – basic. Earnings per common share – diluted includes the effect of potentially dilutive securities. Earnings per common share – basic and diluted components for the periods indicated are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Numerator: ​ ​ ​ ​ Net income ​ $ 118,959 ​ $ 322,575 ​ $ 345,343 Net income attributable to noncontrolling interests ​ (6,810) ​ (7,140) ​ (17,742) Net income attributable to common shareholders – basic ​ 112,149 ​ 315,435 ​ 327,601 Income attributable to operating partnership units ​ — ​ 2,112 ​ — Net income attributable to common shareholders – diluted ​ $ 112,149 ​ $ 317,547 ​ $ 327,601 Denominator: ​ ​ ​ Weighted average shares outstanding – basic ​ 127,291 ​ 127,842 ​ 127,651 Effect of dilutive securities: ​ ​ ​ Share options and awards ​ 878 ​ 842 ​ 790 Operating partnership units ​ — ​ 1,432 ​ — Weighted average shares outstanding – diluted ​ 128,169 ​ 130,116 ​ 128,441 ​ Anti-dilutive securities of our common shares, which are excluded from the calculation of earnings per common share – diluted, are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Operating partnership units ​ 1,432 — 1,432 ​

Share Options and Awards

Share Options and Awards	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Share Options and Awards	Note 14. Share Options and Awards Under our Amended and Restated 2010 Long-Term Incentive Plan (as amended), 4.0 million common shares are reserved for issuance, and options and share awards of .7 million are available for future grant at December 31, 2020. This plan expires in April 2028. Compensation expense, net of forfeitures, associated with share options and restricted shares totaled $9.2 million in 2020, $8.3 million in 2019 and $7.3 million in 2018, of which $1.0 million in 2020, $.8 million in 2019 and $1.1 million in 2018 was capitalized. Options The fair value of share options issued prior to 2012 was estimated on the date of grant using the Black-Scholes option pricing method based on the expected weighted average assumptions. Following is a summary of the option activity for the three years ended December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ Shares Average ​ Under Exercise ​ ​ Option Price Outstanding, January 1, 2018 828,354 ​ $ 23.58 Forfeited or expired (196,159) ​ 32.22 Exercised (352,318) ​ 19.78 Outstanding, December 31, 2018 279,877 ​ 22.30 Forfeited or expired (1,136) ​ 11.85 Exercised (71,325) ​ 17.98 Outstanding, December 31, 2019 207,416 ​ 23.84 Forfeited or expired (23,222) ​ 22.68 Exercised (141,178) ​ 23.72 Outstanding, December 31, 2020 43,016 ​ $ 24.87 ​ The total intrinsic value of options exercised was $1.0 million in 2020, $.9 million in 2019 and $3.6 million in 2018. All share options were vested, and there was no unrecognized compensation cost related to share options. The following table summarizes information about share options outstanding and exercisable at December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Outstanding ​ Exercisable ​ ​ Weighted ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ ​ Average ​ Weighted ​ Aggregate ​ ​ ​ Average ​ Weighted ​ Aggregate ​ ​ ​ ​ Remaining ​ Average ​ Intrinsic ​ ​ ​ Remaining ​ Average ​ Intrinsic Exercise ​ ​ ​ Contractual ​ Exercise ​ Value ​ ​ ​ Contractual ​ Exercise ​ Value Price ​ Number ​ Life ​ Price ​ (000’s) ​ Number ​ Life ​ Price ​ (000’s) $ 24.87 43,016 0.2 years $ 24.87 — 43,016 0.2 years $ 24.87 — ​ Share Awards The fair value of the market-based share awards was estimated on the date of grant using a Monte Carlo valuation model based on the following assumptions: ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ ​ December 31, 2020 ​ ​ ​ Minimum ​ Maximum ​ Dividend yield 0.0 % 5.2 % Expected volatility (1) 19.0 % 20.0 % Expected life (in years) N/A 3 ​ Risk-free interest rate 0.0 % 1.6 % (1) Includes the volatility of the FTSE NAREIT U.S. Shopping Center Index and Weingarten Realty Investors. A summary of the status of unvested share awards for the year ended December 31, 2020 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ Unvested ​ Grant ​ ​ Share ​ Date Fair ​ ​ Awards ​ Value Outstanding, January 1, 2020 801,346 ​ $ 29.56 Granted: ​ Service-based awards 146,750 ​ 30.08 Market-based awards relative to FTSE NAREIT U.S. Shopping Center Index 66,953 ​ 31.18 Market-based awards relative to three-year absolute TSR 66,952 ​ 21.29 Trust manager awards 42,666 ​ 17.04 Vested (265,672) ​ 31.21 Forfeited (2,700) ​ 29.10 Outstanding, December 31, 2020 856,295 ​ $ 28.00 ​ As of December 31, 2020 and 2019, there was approximately $1.8 million and $2.1 million, respectively, of total unrecognized compensation cost related to unvested share awards, which is expected to be amortized over a weighted average of 1.6 years and 1.8 years at December 31, 2020 and 2019, respectively.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
Employee Benefit Plans	Note 15. Employee Benefit Plans Defined Benefit Plan: The following tables summarize changes in the benefit obligation, the plan assets and the funded status of our pension plan as well as the components of net periodic benefit costs, including key assumptions (in thousands). The measurement dates for plan assets and obligations were December 31, 2020 and 2019. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Change in Projected Benefit Obligation: ​ ​ Benefit obligation at beginning of year ​ $ 64,253 ​ $ 55,759 Service cost ​ 1,317 ​ 1,090 Interest cost ​ 1,945 ​ 2,257 Actuarial loss ​ 7,253 ​ 7,889 Benefit payments ​ (2,600) ​ (2,742) Benefit obligation at end of year ​ $ 72,168 ​ $ 64,253 Change in Plan Assets: ​ ​ Fair value of plan assets at beginning of year ​ $ 59,416 ​ $ 50,802 Actual return on plan assets ​ 10,469 ​ 10,356 Employer contributions ​ 1,000 ​ 1,000 Benefit payments ​ (2,600) ​ (2,742) Fair value of plan assets at end of year ​ $ 68,285 ​ $ 59,416 Unfunded status at end of year (included in accounts payable and accrued expenses in 2020 and 2019) ​ $ (3,883) ​ $ (4,837) Accumulated benefit obligation ​ $ 72,053 ​ $ 64,159 Net loss recognized in accumulated other comprehensive loss ​ $ 14,774 ​ $ 14,897 ​ The following is the required information for other changes in plan assets and benefit obligation recognized in other comprehensive income (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Net loss $ 898 $ 1,044 $ 1,143 Amortization of net loss ​ (1,021) ​ (1,197) ​ (1,228) Total recognized in other comprehensive income ​ $ (123) ​ $ (153) ​ $ (85) Total recognized in net periodic benefit cost and other comprehensive income ​ $ 46 ​ $ 880 ​ $ 767 ​ The following is the required information with an accumulated benefit obligation in excess of plan assets (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Projected benefit obligation $ 72,168 $ 64,253 Accumulated benefit obligation ​ 72,053 ​ 64,159 Fair value of plan assets ​ 68,285 ​ 59,416 ​ The components of net periodic benefit cost are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Service cost ​ $ 1,317 $ 1,090 $ 1,295 Interest cost ​ 1,945 ​ 2,257 ​ 2,056 Expected return on plan assets ​ (4,114) ​ (3,511) ​ (3,727) Amortization of net loss ​ 1,021 ​ 1,197 ​ 1,228 Total ​ $ 169 ​ $ 1,033 ​ $ 852 ​ The components of net periodic benefit cost other than the service cost component are included in Interest and Other Income, net in the Consolidated Statements of Operations. The weighted-average assumptions used to determine net periodic benefit cost are shown below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Discount rate 3.09 % 4.12 % 3.50 % Salary scale increases 3.50 % 3.50 % 3.50 % Long-term rate of return on assets 7.00 % 7.00 % 7.00 % Interest credit rate for cash balance plan ​ 4.50 % 4.50 % 4.50 % ​ The selection of the discount rate is made annually after comparison to yields based on high quality fixed-income investments. The salary scale is the composite rate which reflects anticipated inflation, merit increases, and promotions for the group of covered participants. The long-term rate of return is a composite rate for the trust. It is derived as the sum of the percentages invested in each principal asset class included in the portfolio multiplied by their respective expected rates of return. We considered the historical returns and the future expectations for returns for each asset class, as well as the target asset allocation of the pension portfolio. This analysis resulted in the selection of 7.00% as the long-term rate of return assumption for 2020. The weighted-average assumptions used to determine the benefit obligation are shown below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Discount rate 2.32 % 3.09 % 4.12 % Salary scale increases 3.50 % 3.50 % 3.50 % Interest credit rate for cash balance plan ​ 4.50 % 4.50 % 4.50 % ​ The expected contribution to be paid for the Retirement Plan by us during 2021 is approximately $1.0 million. The expected benefit payments for the next 10 years for the Retirement Plan is as follows (in thousands): ​ ​ ​ ​ ​ 2021 $ 2,601 2022 ​ 2,769 2023 ​ 2,939 2024 ​ 3,061 2025 ​ 3,132 2026-2030 ​ 16,366 ​ The participant data used in determining the liabilities and costs for the Retirement Plan was collected as of January 1, 2020, and no significant changes have occurred through December 31, 2020. At December 31, 2020, our investment asset allocation compared to our benchmarking allocation model for our plan assets was as follows: ​ ​ ​ ​ ​ ​ ​ Portfolio Benchmark Cash and Short-Term Investments 5 % 6 % U.S. Stocks 52 % 57 % International Stocks 15 % 10 % U.S. Bonds 23 % 23 % International Bonds 4 % 3 % Other 1 % 1 % Total 100 % 100 % The fair value of plan assets was determined based on publicly quoted market prices for identical assets, which are all classified as Level 1 observable inputs and were as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Cash and Short-Term Investments $ 12,334 $ 10,624 Large Company Funds 24,790 ​ 20,410 Mid Company Funds 3,595 ​ 4,107 Small Company Funds 3,538 ​ 4,071 International Funds 7,502 ​ 6,313 Fixed Income Funds 10,138 ​ 9,106 Growth Funds 6,388 ​ 4,785 Total $ 68,285 $ 59,416 The allocation of the fair value of plan assets was as follows: ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Cash and Short-Term Investments 18 % 18 % Large Company Funds 36 % 34 % Mid Company Funds 5 % 7 % Small Company Funds 5 % 7 % International Funds 11 % 11 % Fixed Income Funds 15 % 15 % Growth Funds 10 % 8 % Total 100 % 100 % ​ Concentrations of risk within our equity portfolio are investments classified within the following sectors: technology, consumer cyclical goods, financial services, healthcare and communication services, which represents approximately 23%, 16%, 15%, 14% and 11% of total equity investments, respectively. Defined Contribution Plans: Compensation expense related to our defined contribution plans was $3.6 million in 2020, $3.9 million in 2019 and $3.8 million in 2018.

Related Parties

Related Parties	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Related Parties	Note 16. Related Parties Effective December 11, 2020, we acquired our partner’s 42.25% interest in the Village Plaza at Bunker Hill center and redeemed our 57.75% interest in the related unconsolidated joint venture while simultaneously disposing of our wholly-owned Overton Park Plaza center to our former partner. did not a business combination but an exchange of nonfinancial assets ASC Subtopic 610-20 . y and liabilities of this transaction were recorded in our Consolidated Balance Sheet using the cost accumulation model, which includes the fair value of the assets acquired plus transaction costs and the carrying value of our previously held joint venture interest as of the effective date. The result of this transaction is included in our Consolidated Statements of Operations beginning December 11, ​ ​ ​ ​ ​ As of ​ December 11, 2020 Amounts recognized for assets and liabilities for Village Plaza at Bunker Hill ​ ​ Assets ​ ​ Property $ 140,596 Unamortized lease costs ​ 41,328 Other, net ​ 1,741 Liabilities ​ ​ Debt, net ​ (73,088) Other, net ​ (4,690) Total net assets $ 105,887 ​ ​ ​ Gain on Transaction (1) $ 32,453 __________________________ (1) Amount is included in Gain on Sale Property in our Consolidated Statement of Operations. The ​ ​ ​ ​ As of ​ December 11, 2020 Assets ​ ​ In place leases ​ 7.6 Above-market leases ​ 7.2 Liabilities ​ ​ Below-market leases ​ 8.0 Above-market assumed mortgage ​ 8.6 ​

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2020
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 17. Commitments and Contingencies Commitments and Contingencies As of December 31, 2020 and 2019, we participated in two real estate ventures structured as DownREIT partnerships. We have operating and financial control over these ventures and consolidate them in our consolidated financial statements. These ventures allow the outside limited partners to put their interest in the partnership to us, and we have the option to redeem the interest in cash or a fixed number of our common shares, at our discretion. We also participate in a real estate venture that has a property in Texas that allows its outside partner to put operating partnership units to us. We have the option to redeem these units in cash or a fixed number of our common shares, at our discretion. The aggregate redemption value of these interests was approximately $31 million and $45 million as of December 31, 2020 and 2019, respectively. As of December 31, 2020, we have entered into commitments aggregating $51.2 million comprised principally of construction contracts which are generally due in 12 to 36 months. We issue letters of intent signifying a willingness to negotiate for acquisitions, dispositions or joint ventures, as well as other types of potential transactions, during the ordinary course of our business. Such letters of intent and other arrangements are non-binding to all parties unless and until a definitive contract is entered into by the parties. Even if definitive contracts relating to the acquisition or disposition of property are entered into, these contracts generally provide the purchaser a time period to evaluate the property and conduct due diligence. The purchaser, during this time, will have the ability to terminate a contract without penalty or forfeiture of any deposit or earnest money. No assurance can be provided that any definitive contracts will be entered into with respect to any matter covered by letters of intent, or that we will consummate any transaction contemplated by a definitive contract. Additionally, due diligence periods for property transactions are frequently extended as needed. An acquisition or disposition of property becomes probable at the time the due diligence period expires and the definitive contract has not been terminated. Our risk is then generally extended only to any earnest money deposits associated with property acquisition contracts, and our obligation to sell under a property sales contract. We are subject to numerous federal, state and local environmental laws, ordinances and regulations in the areas where we own or operate properties. We are not aware of any contamination which may have been caused by us or any of our tenants that would have a material effect on our consolidated financial statements. As part of our risk management activities, we have applied and been accepted into state sponsored environmental programs which will limit our expenses if contaminants need to be remediated. We also have an environmental insurance policy that covers us against third party liabilities and remediation costs. While we believe that we do not have any material exposure to environmental remediation costs, changes in the law or new discoveries of contamination will not result in additional liabilities to us. Litigation We are involved in various matters of litigation arising in the normal course of business. While we are unable to predict the amounts involved, our management and counsel are of the opinion that, when such litigation is resolved, any additional liability, if any, will not have a material effect on our consolidated financial statements.

Variable Interest Entities

Variable Interest Entities	12 Months Ended
	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Variable Interest Entities	Note 18. Variable Interest Entities Consolidated VIEs: At both December 31, 2020 and 2019, eight of our real estate joint ventures, whose activities primarily consisted of owning and operating 21 neighborhood/community shopping centers, were determined to be VIEs. Based on a financing agreement by one of our real estate joint ventures that has a bottom dollar guaranty, which is disproportionate to our ownership, we have determined that we are the primary beneficiary and have consolidated this joint venture. For the remaining real estate joint ventures, we concluded we are the primary beneficiary based primarily on our significant power to direct the entities’ activities without any substantive kick-out or participating rights. A summary of our consolidated VIEs is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Assets Held by VIEs (1) ​ $ 225,719 $ 228,954 Assets Held as Collateral for Debt (2) ​ 41,798 ​ 39,782 Maximum Risk of Loss (2) ​ 29,784 ​ 29,784 (1) The decrease between periods primarily represents net depreciation of property. (2) Represents the amount of debt and related assets held as collateral associated with the bottom dollar guaranty at one real estate joint venture. Restrictions on the use of these assets can be significant because they may serve as collateral for debt. Further, we are generally required to obtain our partner’s approval in accordance with the joint venture agreement for any major transactions. Transactions with these joint ventures in our consolidated financial statements have primarily been positive as demonstrated by the generation of net income and operating cash flows, as well as the receipt of cash distributions. We and our partners are subject to the provisions of the joint venture agreements which include provisions for when additional contributions may be required to fund operating cash shortfalls, development expenditures, unplanned capital expenditures and repayment of debts. For the year ended December 31, 2020, $2.7 million in additional contributions were made to pay off an outstanding debt. Unconsolidated VIEs: At both December 31, 2020 and 2019, two unconsolidated real estate joint ventures were determined to be VIEs. We have determined that one entity was a VIE through the issuance of a secured loan, since the lender had the ability to make decisions that could have a significant impact on the success of the entity. Based on the associated agreements for the future development of a mixed-use project, we concluded that the other entity was a VIE, but we are not the primary beneficiary as the substantive participating rights associated with the entity are shared, and we do not have the power to direct the significant activities of the entity. Our analysis considered that all major decisions require unanimous member consent and those decisions include significant activities such as development, financing, leasing and operations of the entity. A summary of our unconsolidated VIEs is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Investment in Real Estate Joint Ventures and Partnerships, net (1) ​ $ 133,468 $ 128,361 Other Liabilities, net (2) ​ 7,624 ​ 7,735 Maximum Risk of Loss (3) ​ 34,000 ​ 34,000 (1) The carrying amount of the investment represents our contributions to a real estate joint venture, net of any distributions made and our portion of the equity in earnings of the real estate joint venture. The increase between the periods represents new development funding of a mixed-use project. (2) Includes the carrying amount of an investment where distributions have exceeded our contributions and our portion of the equity in earnings for a real estate joint venture. (3) The maximum risk of loss has been determined to be limited to our debt exposure for the real estate joint ventures. Additionally, our investment, including contributions and distributions, associated with a mixed-use project is disclosed in (1) above. We and our partners are subject to the provisions of the joint venture agreements that specify conditions, including operating shortfalls, development expenditures and unplanned capital expenditures, under which additional contributions may be required. With respect to our future development of a mixed-use project, we anticipate funding of approximately $.4 million through 2021.

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Fair Value Measurements	Note 19. Fair Value Measurements Currently, the COVID-19 pandemic has created uncertainties surrounding the global economy and financial markets. As a result, the full magnitude of the pandemic and the ultimate effect upon the future of our fair value measurements are uncertain at this time. Any changes in fair value for financial instruments marked to fair value will have a direct impact to our financial statements, except for net changes in our investments held in grantor trust and its related obligations. Additionally, changes in fair values for financial instruments not marked to fair value will not have an impact to our financial statements unless plans change to sell or settle the instrument prior to its maturity. Recurring Fair Value Measurements: Assets and liabilities measured at fair value on a recurring basis as of December 31, 2020 and 2019, aggregated by the level in the fair value hierarchy in which those measurements fall, are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Identical ​ Other ​ Significant ​ ​ ​ ​ ​ Assets ​ Observable ​ Unobservable ​ Fair Value at ​ ​ and Liabilities ​ Inputs ​ Inputs ​ December 31, ​ ​ (Level 1) ​ (Level 2) ​ (Level 3) ​ 2020 Assets: ​ ​ ​ ​ Cash equivalents, primarily money market funds (1) ​ $ 155 ​ ​ ​ $ 155 Restricted cash, primarily money market funds (1) ​ 10,144 ​ ​ ​ 10,144 Investments, mutual funds held in a grantor trust (1) ​ 43,412 ​ ​ ​ 43,412 Total ​ $ 53,711 ​ $ — ​ $ — ​ $ 53,711 Liabilities: ​ ​ ​ ​ Deferred compensation plan obligations ​ $ 43,412 ​ ​ ​ $ 43,412 Total ​ $ 43,412 ​ $ — ​ $ — ​ $ 43,412 (1) For the year ended December 31, 2020, a net gain of $5.1 million was included in Interest and Other Income, net, of which $3.7 million represented an unrealized gain. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Identical ​ Other ​ Significant ​ ​ ​ ​ ​ Assets ​ Observable ​ Unobservable ​ Fair Value at ​ ​ and Liabilities ​ Inputs ​ Inputs ​ December 31, ​ ​ (Level 1) ​ (Level 2) ​ (Level 3) ​ 2019 Assets: ​ ​ ​ ​ Cash equivalents, primarily money market funds (1) ​ $ 28,330 ​ ​ ​ $ 28,330 Restricted cash, primarily money market funds (1) ​ 9,916 ​ ​ ​ 9,916 Investments, mutual funds held in a grantor trust (1) ​ 38,378 ​ ​ ​ 38,378 Total ​ $ 76,624 ​ $ — ​ $ — ​ $ 76,624 Liabilities: ​ ​ ​ ​ Deferred compensation plan obligations ​ $ 38,378 ​ ​ ​ $ 38,378 Total ​ $ 38,378 ​ $ — ​ $ — ​ $ 38,378 (1) For the year ended December 31, 2019, a net gain of $9.4 million was included in Interest and Other Income, net, of which $6.7 million represented an unrealized gain. Nonrecurring Fair Value Measurements: Property Impairments Property, including right-of-use assets, is reviewed for impairment if events or changes in circumstances indicate that the carrying amount of the property, including any identifiable intangible assets, site costs and capitalized interest, may not be recoverable. In such an event, a comparison is made of the current and projected operating cash flows of each such property into the foreseeable future on an undiscounted basis to the carrying amount of such property. If we conclude that an impairment may have occurred, estimated fair values are determined by management utilizing cash flow models, market capitalization rates and market discount rates, or by obtaining third-party broker valuation estimates, appraisals, bona fide purchase offers or the expected sales price of an executed sales agreement in accordance with our fair value measurements accounting policy. Market capitalization rates and market discount rates are determined by reviewing current sales of similar properties and transactions, and utilizing management’s knowledge and expertise in property marketing. Investment in Real Estate Joint Ventures and Partnerships Impairments Estimated fair values are determined by management utilizing the performance of each investment, the life and other terms of the investment, holding periods, market conditions, cash flow models, market capitalization rates and market discount rates, or by obtaining third-party broker valuation estimates, appraisals, bona fide purchase offers or the expected sales price of an executed sales agreement in accordance with our fair value measurements accounting policy. Market capitalization rates and market discount rates are determined by reviewing current sales of similar properties and transactions, and utilizing management’s knowledge and expertise in property marketing. Assets measured at fair value on a nonrecurring basis at December 31, 2020 aggregated by the level in the fair value hierarchy in which those measurements fall, are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices in ​ ​ ​ ​ ​ ​ Active Markets for ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ Identical ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Assets ​ Observable ​ Unobservable ​ ​ ​ ​ ​ ​ ​ ​ and Liabilities ​ Inputs ​ Inputs ​ ​ ​ ​ Total Gains ​ ​ (Level 1) ​ (Level 2) ​ (Level 3) ​ Fair Value ​ (Losses) (1) Property (2) ​ ​ $ 47,746 ​ $ — ​ $ 47,746 ​ $ (12,686) Total ​ $ — ​ $ 47,746 ​ $ — ​ $ 47,746 ​ $ (12,686) ( 1) Total gains (losses) presented in this table relate to assets that were held by us at December 31, 2020; however, we have subsequently sold one of these centers. (2) In accordance with our policy of evaluating and recording impairments on the disposal of long-lived assets, property with a carrying amount $60.4 million was written down to a fair value of $47.7 million, resulting in a loss of $12.7 million, which was included in earnings for the fourth quarter of 2020. Management’s estimate of fair value of these properties were determined using bona fide purchase offers for the Level 2 inputs. Assets measured at fair value on a nonrecurring basis at December 31, 2019 aggregated by the level in the fair value hierarchy in which those measurements fall, are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices in ​ ​ ​ ​ ​ ​ Active Markets for ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ Identical ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Assets ​ Observable ​ Unobservable ​ ​ ​ ​ ​ ​ ​ ​ and Liabilities ​ Inputs ​ Inputs ​ ​ ​ ​ Total Gains ​ ​ (Level 1) ​ (Level 2) ​ (Level 3) ​ Fair Value ​ (Losses) (1) Investment in real estate joint ventures and partnerships (2) ​ ​ $ 1,830 ​ $ 24,154 ​ $ 25,984 ​ $ (3,070) Total ​ $ — ​ $ 1,830 ​ $ 24,154 ​ $ 25,984 ​ $ (3,070) (1) Total gains (losses) presented in this table relate to assets that were held by us at December 31, 2019. (2) In accordance with our policy of evaluating and recording impairments on the disposal of investments in real estate joint ventures and partnerships, investments with a carrying amount of $29.1 million were written down to a fair value of $26.0 million, resulting in a loss of $3.1 million, which was included in earnings for the fourth quarter of 2019. Management’s estimate of fair value of these investments were determined using a bona fide purchase offer for the Level 2 inputs, and see the quantitative information about the significant unobservable inputs used for our Level 3 fair value measurements in the table below. Fair Value Disclosures: Unless otherwise listed below, short-term financial instruments and receivables are carried at amounts which approximate their fair values based on their highly-liquid nature, short-term maturities and/or expected interest rates for similar instruments. Schedule of our fair value disclosures is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ ​ ​ ​ Using ​ Fair Value ​ ​ ​ ​ Using ​ Fair Value ​ ​ ​ ​ ​ Significant ​ Using ​ ​ ​ ​ Significant ​ Using ​ ​ ​ ​ ​ Other ​ Significant ​ ​ ​ ​ Other ​ Significant ​ ​ ​ ​ ​ Observable ​ Unobservable ​ ​ ​ ​ Observable ​ Unobservable ​ ​ Carrying ​ Inputs ​ Inputs ​ Carrying ​ Inputs ​ Inputs ​ ​ Value ​ (Level 2) ​ (Level 3) Value ​ (Level 2) ​ (Level 3) Other Assets: ​ ​ ​ ​ ​ ​ ​ Tax increment revenue bonds (1) ​ $ 14,762 ​ ​ $ 19,000 ​ $ 17,277 ​ ​ $ 25,000 Debt: ​ ​ ​ ​ ​ ​ ​ ​ Fixed-rate debt ​ 1,798,419 ​ ​ ​ 1,905,306 ​ 1,714,890 ​ ​ 1,787,663 Variable-rate debt ​ 40,000 ​ ​ 40,000 ​ 17,448 ​ ​ 17,426 (1) At December 31, 2019, prior to the adoption of ASC 326, the amortized cost basis was net of a previously recognized other-than-temporary impairment on our tax increment revenue bonds of $31.0 million. The quantitative information about the significant unobservable inputs used for our nonrecurring Level 3 fair value measurements as of December 31, 2019 reported in the above table, is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value at ​ ​ ​ ​ December 31, ​ ​ ​ ​ ​ Range ​ ​ 2019 ​ ​ ​ ​ ​ Minimum ​ Maximum Description (in thousands) Valuation Technique Unobservable Inputs 2019 2019 ​ Investment in real estate joint ventures and partnerships ​ $ 24,154 Discounted cash flows Discount rate 7.3 % 7.5 % ​ ​ ​ ​ ​ Capitalization rate ​ 5.8 % 8.0 % ​ ​ ​ ​ ​ Noncontrolling interest discount ​ ​ ​ 15.0 % ​

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Events	Note 20. Subsequent Events Subsequent to December 31, 2020, we sold real estate with our share of the aggregate gross sales proceeds totaling approximately $53.8 million. * * * * *

Valuation And Qualifying Accoun

Valuation And Qualifying Accounts	12 Months Ended
	Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]
Valuation And Qualifying Accounts	Schedule II WEINGARTEN REALTY INVESTORS VALUATION AND QUALIFYING ACCOUNTS December 31, 2020, 2019, and 2018 (Amounts in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Charged ​ ​ ​ ​ ​ ​ Balance at ​ to costs ​ ​ ​ ​ Balance ​ ​ beginning ​ and ​ ​ ​ ​ at end of Description ​ of period ​ expenses ​ Deductions (1) ​ period 2020 ​ ​ ​ ​ Tax Valuation Allowance ​ $ 5,749 ​ $ — ​ $ 198 ​ $ 5,551 2019 ​ ​ ​ ​ Tax Valuation Allowance ​ $ 12,787 ​ $ — ​ $ 7,038 ​ $ 5,749 2018 ​ ​ ​ ​ Tax Valuation Allowance ​ $ 15,587 ​ $ — ​ $ 2,800 ​ $ 12,787 (1) Deductions included write-offs of amounts previously reserved.

Real Estate And Accumulated Dep

Real Estate And Accumulated Depreciation	12 Months Ended
	Dec. 31, 2020
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
Real Estate and Accumulated Depreciation	WEINGARTEN REALTY INVESTORS REAL ESTATE AND ACCUMULATED DEPRECIATION DECEMBER 31, 2020 (Amounts in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Initial Cost to Company ​ ​ ​ ​ Gross Amounts Carried at Close of Period ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cost ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capitalized ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Costs, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Subsequent ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net of ​ ​ ​ ​ Date of ​ ​ ​ ​ ​ Building and ​ to ​ ​ ​ ​ Building and ​ Total ​ Accumulated ​ Accumulated ​ Encumbrances ​ Acquisition / Description ​ Land ​ Improvements ​ Acquisition ​ Land ​ Improvements ​ (1) ​ Depreciation ​ Depreciation ​ (2) ​ Construction Centers: ​ ​ ​ ​ ​ ​ ​ ​ ​ 10-Federal Shopping Center ​ $ 1,791 ​ $ 7,470 ​ $ 2,121 ​ $ 1,791 ​ $ 9,591 ​ $ 11,382 ​ $ (7,757) ​ $ 3,625 ​ $ (6,075) 03/20/2008 580 Market Place ​ 3,892 ​ 15,570 ​ 4,197 ​ 3,889 ​ 19,770 ​ 23,659 ​ (10,466) ​ 13,193 ​ — 04/02/2001 8000 Sunset Strip Shopping Center ​ 18,320 ​ 73,431 ​ 10,315 ​ 18,320 ​ 83,746 ​ 102,066 ​ (22,192) ​ 79,874 ​ — 06/27/2012 Alabama Shepherd Shopping Center ​ 637 ​ 2,026 ​ 8,572 ​ 1,062 ​ 10,173 ​ 11,235 ​ (6,512) ​ 4,723 ​ — 04/30/2004 Argyle Village Shopping Center ​ 4,524 ​ 18,103 ​ 7,140 ​ 4,526 ​ 25,241 ​ 29,767 ​ (11,693) ​ 18,074 ​ — 11/30/2001 Avent Ferry Shopping Center ​ 1,952 ​ 7,814 ​ 1,557 ​ 1,952 ​ 9,371 ​ 11,323 ​ (4,673) ​ 6,650 ​ — 04/04/2002 Baybrook Gateway ​ 10,623 ​ 30,307 ​ 5,283 ​ 10,623 ​ 35,590 ​ 46,213 ​ (8,075) ​ 38,138 ​ — 02/04/2015 Bellaire Blvd. Shopping Center ​ 124 ​ 37 ​ 961 ​ 1,011 ​ 111 ​ 1,122 ​ (55) ​ 1,067 ​ — 11/13/2008 Blalock Market at I 10 ​ — ​ 4,730 ​ 2,108 ​ — ​ 6,838 ​ 6,838 ​ (5,747) ​ 1,091 ​ — 12/31/1990 Boca Lyons Plaza ​ 3,676 ​ 14,706 ​ 6,727 ​ 3,651 ​ 21,458 ​ 25,109 ​ (10,214) ​ 14,895 ​ — 08/17/2001 Broadway Marketplace ​ 898 ​ 3,637 ​ 2,149 ​ 906 ​ 5,778 ​ 6,684 ​ (4,146) ​ 2,538 ​ — 12/16/1993 Brownsville Commons ​ 1,333 ​ 5,536 ​ 638 ​ 1,333 ​ 6,174 ​ 7,507 ​ (2,386) ​ 5,121 ​ — 05/22/2006 Cambrian Park Plaza ​ 48,803 ​ 1,089 ​ 189 ​ 48,851 ​ 1,230 ​ 50,081 ​ (1,039) ​ 49,042 ​ — 02/27/2015 Camelback Miller Plaza ​ 9,176 ​ 26,898 ​ 4,377 ​ 9,478 ​ 30,973 ​ 40,451 ​ (1,257) ​ 39,194 ​ — 06/27/2019 Camelback Village Square ​ — ​ 8,720 ​ 2,252 ​ — ​ 10,972 ​ 10,972 ​ (6,826) ​ 4,146 ​ — 09/30/1994 Camp Creek Marketplace II ​ 6,169 ​ 32,036 ​ 5,044 ​ 4,697 ​ 38,552 ​ 43,249 ​ (13,662) ​ 29,587 ​ — 08/22/2006 Capital Square ​ 1,852 ​ 7,406 ​ 2,043 ​ 1,852 ​ 9,449 ​ 11,301 ​ (4,702) ​ 6,599 ​ — 04/04/2002 Centerwood Plaza ​ 915 ​ 3,659 ​ 3,696 ​ 914 ​ 7,356 ​ 8,270 ​ (4,084) ​ 4,186 ​ — 04/02/2001 Charleston Commons Shopping Center ​ 23,230 ​ 36,877 ​ 6,710 ​ 23,210 ​ 43,607 ​ 66,817 ​ (15,552) ​ 51,265 ​ — 12/20/2006 Chino Hills Marketplace ​ 7,218 ​ 28,872 ​ 14,126 ​ 7,234 ​ 42,982 ​ 50,216 ​ (24,707) ​ 25,509 ​ — 08/20/2002 Citadel Building ​ 3,236 ​ 6,168 ​ 9,198 ​ 534 ​ 18,068 ​ 18,602 ​ (15,770) ​ 2,832 ​ — 12/30/1975 College Park Shopping Center ​ 2,201 ​ 8,845 ​ 8,372 ​ 2,641 ​ 16,777 ​ 19,418 ​ (12,845) ​ 6,573 ​ (11,369) 11/16/1998 Colonial Plaza ​ 10,806 ​ 43,234 ​ 18,864 ​ 10,813 ​ 62,091 ​ 72,904 ​ (35,063) ​ 37,841 ​ — 02/21/2001 Countryside Centre ​ 15,523 ​ 29,818 ​ 10,859 ​ 15,559 ​ 40,641 ​ 56,200 ​ (18,420) ​ 37,780 ​ — 07/06/2007 Covington Esplanade ​ 10,571 ​ 18,509 ​ 31 ​ 10,571 ​ 18,540 ​ 29,111 ​ (705) ​ 28,406 ​ — 11/18/2019 Crossing At Stonegate ​ 6,400 ​ 23,384 ​ 437 ​ 6,400 ​ 23,821 ​ 30,221 ​ (3,508) ​ 26,713 ​ (13,261) 02/12/2016 Deerfield Mall ​ 10,522 ​ 94,321 ​ 9,489 ​ 27,806 ​ 86,526 ​ 114,332 ​ (13,576) ​ 100,756 ​ — 05/05/2016 Desert Village Shopping Center ​ ​ 3,362 ​ ​ 14,969 ​ ​ 2,562 ​ ​ 3,362 ​ ​ 17,531 ​ ​ 20,893 ​ ​ (5,396) ​ ​ 15,497 ​ ​ — 10/28/2010 Edgewater Marketplace ​ 4,821 ​ 11,225 ​ 2,424 ​ 4,821 ​ 13,649 ​ 18,470 ​ (3,825) ​ 14,645 ​ — 11/19/2010 El Camino Promenade ​ 4,431 ​ 20,557 ​ 5,418 ​ 4,429 ​ 25,977 ​ 30,406 ​ (11,910) ​ 18,496 ​ — 05/21/2004 Embassy Lakes Shopping Center ​ 2,803 ​ 11,268 ​ 2,963 ​ 2,803 ​ 14,231 ​ 17,034 ​ (6,545) ​ 10,489 ​ — 12/18/2002 Entrada de Oro Plaza Shopping Center ​ 6,041 ​ 10,511 ​ 1,721 ​ 6,115 ​ 12,158 ​ 18,273 ​ (4,950) ​ 13,323 ​ — 01/22/2007 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Initial Cost to Company ​ ​ ​ ​ Gross Amounts Carried at Close of Period ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cost ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capitalized ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Costs, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Subsequent ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net of ​ ​ ​ ​ Date of ​ ​ ​ ​ ​ Building and ​ to ​ ​ ​ ​ Building and ​ Total ​ Accumulated ​ Accumulated ​ Encumbrances ​ Acquisition / Description ​ Land ​ Improvements ​ Acquisition ​ Land ​ Improvements ​ (1) ​ Depreciation ​ Depreciation ​ (2) ​ Construction Epic Village St. Augustine ​ $ 283 ​ $ 1,171 ​ $ 3,331 ​ $ 110 ​ $ 4,675 ​ $ 4,785 ​ $ (3,792) ​ $ 993 ​ $ — 09/30/2009 Falls Pointe Shopping Center ​ 3,535 ​ 14,289 ​ 1,633 ​ 3,542 ​ 15,915 ​ 19,457 ​ (7,339) ​ 12,118 ​ — 12/17/2002 Festival on Jefferson Court ​ ​ 5,041 ​ ​ 13,983 ​ ​ 4,275 ​ ​ 5,022 ​ ​ 18,277 ​ ​ 23,299 ​ ​ (8,792) ​ ​ 14,507 ​ ​ — 12/22/2004 Fiesta Trails ​ 8,825 ​ 32,790 ​ 15,034 ​ 11,267 ​ 45,382 ​ 56,649 ​ (18,429) ​ 38,220 ​ — 09/30/2003 Fountain Plaza ​ 1,319 ​ 5,276 ​ 2,811 ​ 1,095 ​ 8,311 ​ 9,406 ​ (5,253) ​ 4,153 ​ — 03/10/1994 Francisco Center ​ 1,999 ​ 7,997 ​ 5,701 ​ 2,403 ​ 13,294 ​ 15,697 ​ (9,274) ​ 6,423 ​ (10,327) 11/16/1998 Freedom Centre ​ 2,929 ​ 15,302 ​ 6,266 ​ 6,944 ​ 17,553 ​ 24,497 ​ (8,290) ​ 16,207 ​ — 06/23/2006 Galveston Place ​ ​ 2,713 ​ ​ 5,522 ​ ​ 6,223 ​ ​ 3,279 ​ ​ 11,179 ​ ​ 14,458 ​ ​ (9,141) ​ ​ 5,317 ​ ​ — 11/30/1983 Gateway Plaza ​ ​ 4,812 ​ ​ 19,249 ​ ​ 5,637 ​ ​ 4,808 ​ ​ 24,890 ​ ​ 29,698 ​ ​ (13,390) ​ ​ 16,308 ​ ​ (23,000) 04/02/2001 Grayson Commons ​ 3,180 ​ 9,023 ​ 686 ​ 3,163 ​ 9,726 ​ 12,889 ​ (4,029) ​ 8,860 ​ (3,440) 11/09/2004 Greenhouse Marketplace ​ 4,607 ​ 22,771 ​ 4,935 ​ 4,750 ​ 27,563 ​ 32,313 ​ (12,892) ​ 19,421 ​ — 01/28/2004 Griggs Road Shopping Center ​ 257 ​ 2,303 ​ 678 ​ 257 ​ 2,981 ​ 3,238 ​ (2,123) ​ 1,115 ​ — 03/20/2008 Harrisburg Plaza ​ 1,278 ​ 3,924 ​ 1,409 ​ 1,278 ​ 5,333 ​ 6,611 ​ (4,532) ​ 2,079 ​ (9,318) 03/20/2008 HEB - Dairy Ashford & Memorial ​ 1,717 ​ 4,234 ​ — ​ 1,717 ​ 4,234 ​ 5,951 ​ (1,662) ​ 4,289 ​ — 03/06/2012 Heights Plaza Shopping Center ​ 58 ​ 699 ​ 2,633 ​ 1,055 ​ 2,335 ​ 3,390 ​ (1,900) ​ 1,490 ​ — 06/30/1995 High House Crossing ​ 2,576 ​ 10,305 ​ 2,712 ​ 2,576 ​ 13,017 ​ 15,593 ​ (5,348) ​ 10,245 ​ — 04/04/2002 Highland Square ​ — ​ — ​ 1,970 ​ — ​ 1,970 ​ 1,970 ​ (762) ​ 1,208 ​ — 10/06/1959 Hilltop Village Center ​ 3,196 ​ 7,234 ​ 54,046 ​ 3,960 ​ 60,516 ​ 64,476 ​ (28,818) ​ 35,658 ​ — 01/01/2016 Hope Valley Commons ​ 2,439 ​ 8,487 ​ 554 ​ 2,439 ​ 9,041 ​ 11,480 ​ (2,661) ​ 8,819 ​ — 08/31/2010 I45/Telephone Rd. ​ 678 ​ 11,182 ​ 461 ​ 678 ​ 11,643 ​ 12,321 ​ (7,316) ​ 5,005 ​ (11,246) 03/20/2008 Independence Plaza I & II ​ 19,351 ​ 31,627 ​ 2,539 ​ 19,351 ​ 34,166 ​ 53,517 ​ (11,919) ​ 41,598 ​ (11,678) 06/11/2013 Kings Crossing ​ ​ 3,570 ​ ​ 8,147 ​ ​ 1,079 ​ ​ 3,585 ​ ​ 9,211 ​ ​ 12,796 ​ ​ (6,264) ​ ​ 6,532 ​ ​ — ​ 11/13/2008 Lakeside Marketplace ​ 6,064 ​ 22,989 ​ 6,117 ​ 6,150 ​ 29,020 ​ 35,170 ​ (10,510) ​ 24,660 ​ — 08/22/2006 Largo Mall ​ 10,817 ​ 40,906 ​ 8,851 ​ 10,810 ​ 49,764 ​ 60,574 ​ (22,591) ​ 37,983 ​ — 03/01/2004 League City Plaza ​ 1,918 ​ 7,592 ​ 4,794 ​ 2,261 ​ 12,043 ​ 14,304 ​ (6,368) ​ 7,936 ​ — 03/20/2008 Leesville Towne Centre ​ 7,183 ​ 17,162 ​ 2,565 ​ 7,223 ​ 19,687 ​ 26,910 ​ (8,544) ​ 18,366 ​ — 01/30/2004 Lowry Town Center ​ 1,889 ​ 23,165 ​ 1,084 ​ 1,889 ​ 24,249 ​ 26,138 ​ (3,000) ​ 23,138 ​ — 09/14/2016 Madera Village Shopping Center ​ 3,788 ​ 13,507 ​ 1,655 ​ 3,816 ​ 15,134 ​ 18,950 ​ (5,901) ​ 13,049 ​ — 03/13/2007 Madison Village Marketplace ​ 3,157 ​ 13,123 ​ 712 ​ 3,158 ​ 13,834 ​ 16,992 ​ (724) ​ 16,268 ​ — 03/28/2019 Mendenhall Commons ​ ​ 2,655 ​ ​ 9,165 ​ ​ 1,088 ​ ​ 2,677 ​ ​ 10,231 ​ ​ 12,908 ​ ​ (4,288) ​ ​ 8,620 ​ ​ — 11/13/2008 Monte Vista Village Center ​ 1,485 ​ 58 ​ 5,898 ​ 755 ​ 6,686 ​ 7,441 ​ (4,513) ​ 2,928 ​ — 12/31/2004 Mueller Regional Retail Center ​ 10,382 ​ 56,303 ​ 5,720 ​ 11,190 ​ 61,215 ​ 72,405 ​ (18,838) ​ 53,567 ​ — 10/03/2013 North Creek Plaza ​ 6,915 ​ 25,625 ​ 8,105 ​ 7,617 ​ 33,028 ​ 40,645 ​ (15,063) ​ 25,582 ​ — 08/19/2004 North Towne Plaza ​ 960 ​ 3,928 ​ 9,632 ​ 879 ​ 13,641 ​ 14,520 ​ (10,031) ​ 4,489 ​ — 02/15/1990 North Towne Plaza ​ 6,646 ​ 99 ​ (5,553) ​ 259 ​ 933 ​ 1,192 ​ (719) ​ 473 ​ — 04/01/2010 Northwoods Shopping Center ​ 1,768 ​ 7,071 ​ 768 ​ 1,772 ​ 7,835 ​ 9,607 ​ (3,924) ​ 5,683 ​ — 04/04/2002 Oak Forest Shopping Center ​ 760 ​ 2,726 ​ 7,365 ​ 1,358 ​ 9,493 ​ 10,851 ​ (7,161) ​ 3,690 ​ — 12/30/1976 Oracle Wetmore Shopping ​ 24,686 ​ 26,878 ​ 1,627 ​ 11,553 ​ 41,638 ​ 53,191 ​ (18,111) ​ 35,080 ​ — 01/22/2007 Perimeter Village ​ 29,701 ​ 42,337 ​ 5,469 ​ 34,404 ​ 43,103 ​ 77,507 ​ (18,094) ​ 59,413 ​ (28,720) 07/03/2007 Phillips Crossing ​ — ​ 1 ​ 28,473 ​ 872 ​ 27,602 ​ 28,474 ​ (16,079) ​ 12,395 ​ — 09/30/2009 Phoenix Office Building ​ 1,696 ​ 3,255 ​ 1,737 ​ 1,773 ​ 4,915 ​ 6,688 ​ (2,416) ​ 4,272 ​ — 01/31/2007 Pike Center ​ — ​ 40,537 ​ 3,461 ​ — ​ 43,998 ​ 43,998 ​ (16,705) ​ 27,293 ​ — 08/14/2012 Plantation Centre ​ 3,463 ​ 14,821 ​ 2,427 ​ 3,471 ​ 17,240 ​ 20,711 ​ (7,631) ​ 13,080 ​ — 08/19/2004 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Initial Cost to Company ​ ​ ​ ​ Gross Amounts Carried at Close of Period ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cost ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capitalized ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Costs, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Subsequent ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net of ​ ​ ​ ​ Date of ​ ​ ​ ​ ​ Building and ​ to ​ ​ ​ ​ Building and ​ Total ​ Accumulated ​ Accumulated ​ Encumbrances ​ Acquisition / Description ​ Land ​ Improvements ​ Acquisition ​ Land ​ Improvements ​ (1) ​ Depreciation ​ Depreciation ​ (2) ​ Construction Pueblo Anozira Shopping Center ​ $ 2,750 ​ $ 11,000 ​ $ 5,858 ​ $ 2,768 ​ $ 16,840 ​ $ 19,608 ​ $ (11,349) ​ $ 8,259 ​ $ (13,170) 06/16/1994 Raintree Ranch Center ​ 11,442 ​ 595 ​ 18,066 ​ 10,983 ​ 19,120 ​ 30,103 ​ (12,690) ​ 17,413 ​ — 03/31/2008 Rancho San Marcos Village ​ 3,533 ​ 14,138 ​ 6,139 ​ 3,887 ​ 19,923 ​ 23,810 ​ (9,531) ​ 14,279 ​ — 02/26/2003 Rancho Towne and Country ​ ​ 1,161 ​ ​ 4,647 ​ ​ 842 ​ ​ 1,166 ​ ​ 5,484 ​ ​ 6,650 ​ ​ (3,630) ​ ​ 3,020 ​ ​ — 10/16/1995 Red Mountain Gateway ​ ​ 2,166 ​ ​ 89 ​ ​ 13,120 ​ ​ 3,317 ​ ​ 12,058 ​ ​ 15,375 ​ ​ (6,178) ​ ​ 9,197 ​ ​ — 12/31/2003 Richmond Square ​ ​ 1,993 ​ ​ 953 ​ ​ 12,948 ​ ​ 13,903 ​ ​ 1,991 ​ ​ 15,894 ​ ​ (1,425) ​ ​ 14,469 ​ ​ — 12/31/1996 Ridgeway Trace ​ 26,629 ​ 544 ​ 26,386 ​ 16,100 ​ 37,459 ​ 53,559 ​ (19,820) ​ 33,739 ​ — 11/09/2006 River Oaks Shopping Center - East ​ 1,354 ​ 1,946 ​ 471 ​ 1,363 ​ 2,408 ​ 3,771 ​ (2,075) ​ 1,696 ​ — 12/04/1992 River Oaks Shopping Center - West ​ 3,320 ​ 17,741 ​ 35,955 ​ 3,993 ​ 53,023 ​ 57,016 ​ (30,097) ​ 26,919 ​ — 12/04/1992 River Point at Sheridan ​ 28,898 ​ 4,042 ​ 29,855 ​ 11,848 ​ 50,947 ​ 62,795 ​ (17,652) ​ 45,143 ​ — 04/01/2010 Roswell Corners ​ 6,136 ​ 21,447 ​ 7,321 ​ 7,103 ​ 27,801 ​ 34,904 ​ (11,415) ​ 23,489 ​ — 06/24/2004 Roswell Crossing Shopping Center ​ 7,625 ​ 18,573 ​ 1,546 ​ 7,625 ​ 20,119 ​ 27,744 ​ (7,839) ​ 19,905 ​ — 07/18/2012 San Marcos Plaza ​ 1,360 ​ 5,439 ​ 1,612 ​ 1,358 ​ 7,053 ​ 8,411 ​ (3,370) ​ 5,041 ​ — 04/02/2001 Scottsdale Horizon ​ — ​ 3,241 ​ 39,902 ​ 12,914 ​ 30,229 ​ 43,143 ​ (8,846) ​ 34,297 ​ — 01/22/2007 Scottsdale Waterfront ​ 10,281 ​ 40,374 ​ 2,495 ​ 21,586 ​ 31,564 ​ 53,150 ​ (4,030) ​ 49,120 ​ — 08/17/2016 Sea Ranch Centre ​ 11,977 ​ 4,219 ​ 2,545 ​ 11,977 ​ 6,764 ​ 18,741 ​ (2,581) ​ 16,160 ​ — 03/06/2013 Shoppes at Bears Path ​ 3,252 ​ 5,503 ​ 1,727 ​ 3,290 ​ 7,192 ​ 10,482 ​ (2,924) ​ 7,558 ​ — 03/13/2007 Shoppes at Memorial Villages ​ ​ 1,417 ​ ​ 4,786 ​ ​ 13,105 ​ ​ 3,332 ​ ​ 15,976 ​ ​ 19,308 ​ ​ (9,812) ​ ​ 9,496 ​ ​ — 01/11/2012 Shops at Kirby Drive ​ 1,201 ​ 945 ​ 293 ​ 1,202 ​ 1,237 ​ ​ 2,439 ​ (567) ​ 1,872 ​ — 05/27/2008 Shops at Three Corners ​ 6,215 ​ 9,303 ​ 11,488 ​ 10,587 ​ 16,419 ​ ​ 27,006 ​ (12,333) ​ 14,673 ​ — 12/31/1989 Silver Creek Plaza ​ 3,231 ​ 12,924 ​ 10,613 ​ 3,228 ​ 23,540 ​ ​ 26,768 ​ (9,551) ​ 17,217 ​ — 04/02/2001 Six Forks Shopping Center ​ 6,678 ​ 26,759 ​ 7,283 ​ 6,728 ​ 33,992 ​ ​ 40,720 ​ (17,632) ​ 23,088 ​ — 04/04/2002 Southampton Center ​ 4,337 ​ 17,349 ​ 3,372 ​ 4,333 ​ 20,725 ​ ​ 25,058 ​ (11,127) ​ 13,931 ​ (19,750) 04/02/2001 Southgate Shopping Center ​ 232 ​ 8,389 ​ 781 ​ 231 ​ 9,171 ​ ​ 9,402 ​ (6,326) ​ 3,076 ​ (6,234) 03/20/2008 Squaw Peak Plaza ​ 816 ​ 3,266 ​ 3,600 ​ 818 ​ 6,864 ​ ​ 7,682 ​ (4,608) ​ 3,074 ​ — 12/20/1994 Stevens Creek Central ​ 41,812 ​ 45,997 ​ 7,531 ​ 45,942 ​ 49,398 ​ ​ 95,340 ​ (1,586) ​ 93,754 ​ — 11/08/2019 Stonehenge Market ​ 4,740 ​ 19,001 ​ 4,020 ​ 4,740 ​ 23,021 ​ ​ 27,761 ​ (11,199) ​ 16,562 ​ — 04/04/2002 Stony Point Plaza ​ 3,489 ​ 13,957 ​ 11,492 ​ 3,453 ​ 25,485 ​ ​ 28,938 ​ (14,508) ​ 14,430 ​ — 04/02/2001 Sunset 19 Shopping Center ​ 5,519 ​ 22,076 ​ 26,440 ​ 5,996 ​ 48,039 ​ ​ 54,035 ​ (15,560) ​ 38,475 ​ — 10/29/2001 The Centre at Post Oak ​ 13,731 ​ 115 ​ 25,724 ​ 17,822 ​ 21,748 ​ ​ 39,570 ​ (15,690) ​ 23,880 ​ — 12/31/1996 The Commons at Dexter Lake ​ 4,946 ​ 18,948 ​ 5,130 ​ 4,988 ​ 24,036 ​ ​ 29,024 ​ (11,090) ​ 17,934 ​ — 11/13/2008 The Palms at Town & Country ​ 56,833 ​ 195,203 ​ 10,125 ​ 79,673 ​ 182,488 ​ ​ 262,161 ​ (26,868) ​ 235,293 ​ — 07/27/2016 The Shops at Hilshire Village ​ 12,929 ​ 20,666 ​ 2,356 ​ 13,959 ​ 21,992 ​ ​ 35,951 ​ (841) ​ 35,110 ​ — 10/24/2019 The Whittaker ​ 5,237 ​ 19,395 ​ 3,577 ​ 5,315 ​ 22,894 ​ ​ 28,209 ​ (2,053) ​ 26,156 ​ — 01/01/2019 Thompson Bridge Commons ​ 604 ​ — ​ 625 ​ 513 ​ 716 ​ ​ 1,229 ​ (183) ​ 1,046 ​ — 04/26/2005 Thousand Oaks Shopping Center ​ 2,973 ​ 13,142 ​ 1,335 ​ 2,973 ​ 14,477 ​ ​ 17,450 ​ (6,825) ​ 10,625 ​ (11,378) 03/20/2008 TJ Maxx Plaza ​ 3,400 ​ 19,283 ​ 4,380 ​ 3,430 ​ 23,633 ​ ​ 27,063 ​ (10,544) ​ 16,519 ​ — 03/01/2004 Tomball Marketplace ​ 9,616 ​ 262 ​ 26,873 ​ 6,726 ​ 30,025 ​ ​ 36,751 ​ (16,448) ​ 20,303 ​ — 04/12/2006 Trenton Crossing ​ 9,855 ​ 29,133 ​ 2,958 ​ 9,855 ​ 32,091 ​ ​ 41,946 ​ (5,445) ​ 36,501 ​ — 08/31/2015 Valley Shopping Center ​ 4,293 ​ 13,736 ​ (504) ​ 6,086 ​ 11,439 ​ ​ 17,525 ​ (4,860) ​ 12,665 ​ — 04/07/2006 Village Green Center ​ 8,717 ​ 18,694 ​ 27 ​ 8,716 ​ 18,722 ​ ​ 27,438 ​ (588) ​ 26,850 ​ (17,719) 03/11/2020 Village Plaza at Bunker Hill ​ 42,506 ​ 98,090 ​ — ​ 42,506 ​ 98,090 ​ ​ 140,596 ​ (122) ​ 140,474 ​ (69,387) 12/11/2020 Vizcaya Square Shopping Center ​ 3,044 ​ 12,226 ​ 2,641 ​ 3,044 ​ 14,867 ​ ​ 17,911 ​ (7,194) ​ 10,717 ​ — 12/18/2002 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Initial Cost to Company ​ ​ ​ ​ Gross Amounts Carried at Close of Period ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Cost ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Capitalized ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Total Costs, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Subsequent ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Net of ​ ​ ​ ​ Date of ​ ​ ​ ​ ​ Building and ​ to ​ ​ ​ ​ Building and ​ Total ​ Accumulated ​ Accumulated ​ Encumbrances ​ Acquisition / Description ​ Land ​ Improvements ​ Acquisition ​ Land ​ Improvements ​ (1) ​ Depreciation ​ Depreciation ​ (2) ​ Construction Wellington Green Commons & Pad $ 16,500 $ 32,489 $ 3,489 $ 16,500 $ 35,978 ​ $ 52,478 $ (5,929) $ 46,549 $ (16,678) 04/20/2015 Westchase Shopping Center ​ 3,085 ​ 7,920 ​ 13,941 ​ 3,189 ​ 21,757 ​ ​ 24,946 ​ (15,234) ​ 9,712 ​ (15,057) 08/29/1978 Westhill Village Shopping Center ​ 408 ​ 3,002 ​ 7,106 ​ 437 ​ 10,079 ​ ​ 10,516 ​ (6,590) ​ 3,926 ​ — 05/01/1958 Westminster Center ​ 11,215 ​ 44,871 ​ 10,161 ​ 11,204 ​ 55,043 ​ ​ 66,247 ​ (29,249) ​ 36,998 ​ (47,250) 04/02/2001 Winter Park Corners ​ 2,159 ​ 8,636 ​ 15,509 ​ 2,257 ​ 24,047 ​ ​ 26,304 ​ (6,666) ​ 19,638 ​ — 09/06/2001 ​ ​ 841,761 ​ 2,123,550 ​ 831,410 ​ 903,284 ​ 2,893,437 ​ 3,796,721 ​ (1,116,075) ​ 2,680,646 ​ (345,057) ​ ​ New Development/Redevelopment: ​ ​ ​ ​ ​ ​ ​ ​ ​ West Alex ​ 39,029 ​ 2,669 ​ 149,419 ​ 42,448 ​ 148,669 ​ 191,117 ​ (9,417) ​ 181,700 ​ — 11/01/2016 The Driscoll at River Oaks ​ 214 ​ — ​ 126,127 ​ 2,509 ​ 123,832 ​ 126,341 ​ (998) ​ 125,343 ​ — 12/04/1992 ​ ​ 39,243 ​ 2,669 ​ 275,546 ​ 44,957 ​ 272,501 ​ 317,458 ​ (10,415) ​ 307,043 ​ — ​ ​ Miscellaneous (not to exceed 5% of total) ​ 80,212 ​ 3,096 ​ 48,847 ​ 60,147 ​ 72,008 ​ 132,155 ​ (35,480) ​ 96,675 ​ — Total of Portfolio ​ $ 961,216 ​ $ 2,129,315 ​ $ 1,155,803 ​ $ 1,008,388 ​ $ 3,237,946 ​ $ 4,246,334 ​ $ (1,161,970) ​ $ 3,084,364 ​ $ (345,057) (1) The book value of our net real estate assets is in excess of tax basis by approximately $183.1 million at December 31, 2020. (2) Encumbrances do not include $5.3 million of non-cash debt related items and $(.8) million of deferred debt costs. Depreciation is computed using the straight-line method, generally over estimated useful lives of 18-40 years for buildings and 10-20 years for parking lot surfacing and equipment. Tenant and leasehold improvements are depreciated over the remaining life of the lease or the useful life whichever is shorter. The changes in total cost of the properties were as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Balance at beginning of year $ 4,145,249 $ 4,105,068 $ 4,498,859 Additions at cost ​ 311,789 ​ 389,858 ​ 164,150 Retirements or sales ​ (186,551) ​ (349,603) ​ (547,821) Impairment loss ​ (24,153) ​ (74) ​ (10,120) Balance at end of year ​ $ 4,246,334 ​ $ 4,145,249 ​ $ 4,105,068 ​ The changes in accumulated depreciation were as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Balance at beginning of year $ 1,110,675 $ 1,108,188 $ 1,166,126 Additions at cost ​ 119,948 ​ 109,825 ​ 118,664 Retirements or sales ​ (68,653) ​ (107,338) ​ (176,602) Balance at end of year ​ $ 1,161,970 ​ $ 1,110,675 ​ $ 1,108,188

Mortgage Loans On Real Estate

Mortgage Loans On Real Estate	12 Months Ended
	Dec. 31, 2020
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Abstract]
Mortgage Loans On Real Estate	MORTGAGE LOANS ON REAL ESTATE DECEMBER 31, 2020 (Amounts in thousands) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Final Periodic Face Carrying ​ ​ ​ Interest ​ Maturity ​ Payment ​ Amount of ​ Amount of ​ State ​ Rate ​ Date ​ Terms ​ Mortgages ​ Mortgages (1) Shopping Centers: ​ ​ ​ ​ First Mortgages: ​ ​ ​ ​ College Park Realty Company NV ​ 7.00 % ​ 10/31/2053 ​ At Maturity ​ $ 3,410 ​ $ 3,410 West Jordan Retail Associate, LLC UT ​ 4.00 % ​ 08/01/2021 ​ At Maturity ​ ​ 9,930 ​ ​ 9,930 Galleria 1848 LLC NC ​ 5.00 % ​ 12/31/2021 ​ At Maturity ​ ​ 10,000 ​ ​ 10,000 Total Mortgage Loans on Real Estate ​ ​ ​ ​ ​ ​ ​ ​ ​ $ 23,340 ​ $ 23,340 (1) The aggregate cost at December 31, 2020 for federal income tax purposes is $23.3 million, and there are no prior liens to be disclosed. These are interest only mortgage loans. For the year ended December 31, 2020, two mortgage loans were issued in association with the disposition of two properties. There have been no changes in carrying amount of mortgages for each year ended December 31, 2019 and 2018.

Summary Of Significant Accoun_2

Summary Of Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation Our consolidated financial statements include the accounts of our subsidiaries, certain real estate joint ventures or partnerships and VIEs which meet the guidelines for consolidation. All intercompany balances and transactions have been eliminated. Our financial statements are prepared in accordance with GAAP. Such statements require management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from these estimates. We have evaluated subsequent events for recognition or disclosure in our consolidated financial statements.
Leases	Leases As part of our operations, we are primarily a lessor of commercial retail space. In certain instances, we are also a lessee, primarily of ground leases associated with our operations. Our contracts are reviewed to determine if they qualify, under the GAAP definition, as a lease. A contract is determined to be a lease when the right to obtain substantially all of the economic benefits and to direct the use of an identified asset is transferred to a customer over a defined period of time for consideration. During this review, we evaluate among other items, asset specification, substitution rights, purchase options, operating rights and control over the asset during the contract period. We have elected accounting policy practical expedients, both as a lessor and a lessee, to not separate any nonlease components (primarily common area maintenance) within a lease contract for all classes of underlying assets (primarily real estate assets). As a lessor, we have further determined that this policy will be effective only on a lease that has been classified as an operating lease and the revenue recognition pattern and timing is the same for both types of components. We have determined to account for both the lease and nonlease components as a single component when the lease component is the predominate component of a contract. Therefore, Accounting Standards Codification ("ASC") No. 842, “Leases” will be applied to these lease contracts for both types of components. Additionally, for lessee leases, we have also elected not to apply the overall balance sheet recognition requirements to short-term leases that are less than 12 months from the lease commencement date. Significant judgments and assumptions are inherent in not only determining if a contract contains a lease but also the lease classification, terms, payments, and, if needed, discount rates. Judgments include the nature of any options with the determination if they will be exercised, evaluation of implicit discount rates, assessment and consideration of “fixed” payments for straight-line rent revenue calculations and the evaluation of asset identification and substitution rights. The determination of the discount rate used in a lease is the incremental borrowing rate of the lease contract. For lessee leases, this rate is often not readily determinable as the lessor’s initial direct costs and expected residual value are at the end of the lease term and are unknown. Therefore, as the lessee, our incremental borrowing rate will be used. Selected discount rates will reflect rates that we would have to pay to borrow on a fully collateralized basis over a term similar to the lease. Additionally, we will obtain lender quotes with similar terms and if not available, we consider the asset type, risk free rates and financing spreads to account for creditworthiness and collateral. Our lessor leases are principally related to our shopping centers. We believe risk of an inadequate residual value of the leased asset upon the termination of these leases is low due to our ability to re-lease the space, the long-lived nature of our real estate assets and the propensity of real estate assets to hold their value over a long period of time. In April 2020, the Financial Accounting Standards Board ("FASB") published a Staff Q&A regarding Accounting for Lease Concessions Related to the Effects of the COVID-19 pandemic. As the pandemic is expected to result in numerous tenant rent and lease concessions, the intent of the publication was to provide relief to lessors in assessing whether a lease modification exists. The FASB publication provides for an election to bypass the lease-by-lease analysis and account for lease concessions, directly related to the effects of the COVID-19 pandemic, consistent with how those concessions would be accounted for as though enforceable rights and obligations for those concessions existed in the original contract. Accordingly, an entity would not have to analyze each contract to determine whether those rights exist in the contract and can elect to apply or not apply lease modification guidance to those contracts. Such election is required to be applied consistently to leases with similar characteristics and circumstances. This election is available for COVID-19 related concessions that do not result in a substantial increase in the rights of the lessor or the obligations of the lessee and the total payments required by the modified lease are substantially the same as or less than total payments required by the original lease. As of April 1, 2020, we elected to not apply lease modification guidance to those contracts. As such, any lease deferral concessions will remain recorded in Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net, and rent abatements will be recorded as a reduction to Rentals, net in our consolidated financial statements. Subject to this guidance, as of December 31, 2020, included in Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net we have deferred lease concessions not currently due of $9.6 million and have recorded rent abatements of $3.2 million (see Note 9 for additional information). Discussions are continuing with tenants as the effects of COVID-19 and related mandates evolve.
Revenue Recognition	Revenue Recognition At the inception of a revenue producing contract, we determine if a contract qualifies as a lease and if not, then as a customer contract. Additionally, we exclude all taxes assessed by a governmental authority that is collected by us from Revenue. Based on this determination, the appropriate GAAP is applied to the contract, including its revenue recognition. Rentals, net Rental revenue is primarily derived from operating leases and, therefore, is generally recognized on a straight-line basis over the term of the lease, which typically begins the date the tenant takes control of the space. Variable rental revenue consists primarily of tenant reimbursements of taxes, maintenance expenses and insurance, is subject to our interpretation of lease provisions and is recognized over the term of a lease as services are provided. Additionally, variable rental revenue based on a percentage of tenants’ sales is recognized only after the tenant exceeds its sales breakpoint. In circumstances where we provide a tenant improvement allowance for improvements that are owned by the tenant, we recognize the allowance as a reduction of rental revenue on a straight-line basis over the term of the lease. Further, at the lease commencement date and on an ongoing basis, we consider the collectability of a lease when determining revenue to be recognized. Prior to the adoption of ASC No. 842, rental revenues were recognized under ASC No. 840, “Leases.” Other Other revenue consists of both customer contract revenue and income from contractual agreements with third parties or real estate joint ventures or partnerships, which do not meet the definition of a lease or a customer contract. Revenues which do not meet the definition of a lease or customer contract are recognized as the related services are performed under the applicable agreement. We have identified primarily three types of customer contract revenue: (1) management contracts with real estate joint ventures or partnerships or third parties, (2) licensing and occupancy agreements and (3) certain non-tenant contracts. At contract inception, we assess the services provided in these contracts and identify any performance obligations that are distinct. To identify the performance obligation, we consider all services, whether explicitly stated or implied by customary business practices. We have identified the following substantive services, which may or may not be included in each contract type, that represent performance obligations: ​ ​ ​ ​ ​ ​ ​ Contract Type Performance Obligation Description Elements of Performance Obligations Payment Timing Management Agreements ​ ● ● ● ​ ● ● ● ​ Typically monthly or quarterly ​ ​ ● ● ​ ● ● ​ ​ Licensing and Occupancy Agreements ​ ● ​ ● ● ● ​ Typically monthly ​ ​ ● ​ ● ● ​ ​ Non-tenant Contracts ​ ● ​ ● ● ​ Typically monthly ​ ​ ● ​ ● ● ​ ​ ​ We also assess collectability of the customer contract revenue prior to recognition. None of these customer contracts include a significant financing component.
Property	Property Real estate assets are stated at cost less accumulated depreciation. Depreciation is computed using the straight-line method, generally over estimated useful lives of 18-40 years for buildings and 10-20 years for parking lot surfacing and equipment. Major replacements where the betterment extends the useful life of the asset are capitalized, and the replaced asset and corresponding accumulated depreciation are removed from the accounts. All other maintenance and repair items are charged to expense as incurred. Acquisitions of properties are accounted for utilizing the acquisition of a nonfinancial asset method and, accordingly, the results of operations of an acquired property are included in our results of operations from the date of acquisition. Estimates of fair values are based upon estimated future cash flows and other valuation techniques. Fair values are used to allocate and record the purchase price of acquired property among land, buildings on an “as if vacant” basis, tenant improvements, other identifiable intangibles and any goodwill or gain on purchase. Other identifiable intangible assets and liabilities include the effect of out-of-market leases, the value of having leases in place (“as is” versus “as if vacant” and absorption costs), out-of-market assumed mortgages and tenant relationships. Depreciation and amortization is computed using the straight-line method, generally over estimated useful lives of 40 years for buildings and over the lease term for other identifiable intangible assets. Costs associated with the successful acquisition of an asset are capitalized as incurred. Property also includes costs incurred in the development and redevelopment of operating properties. These properties are carried at cost, and no depreciation is recorded on these assets until rent commences or no later than one year from the completion of major construction. These costs include preacquisition costs directly identifiable with the specific project, development and construction costs, interest, insurance and real estate taxes. Indirect development costs, including salaries and benefits, travel and other related costs that are directly attributable to the development of the property, are also capitalized. The capitalization of such costs ceases at the earlier of one year from the completion of major construction or when the property, or any completed portion, becomes available for occupancy. Also included in property is costs for tenant improvements paid by us, including reimbursements to tenants for improvements that are owned by us and will remain our property after the lease expires. Property identified for sale is reviewed to determine if it qualifies as held for sale based on the following criteria: management has approved and is committed to the disposal plan, the assets are available for immediate sale, an active plan is in place to locate a buyer, the sale is probable and expected to qualify as a completed sale within a year, the sales price is reasonable in relation to the current fair value, and it is unlikely that significant changes will be made to the sales plan or that the sales plan will be withdrawn. Upon qualification, these properties are segregated and classified as held for sale at the lower of cost or fair value less costs to sell. Also for disposal transactions, the presence of a significant financing component is considered and evaluated, if necessary. We have adopted the practical expedient in which the promised amount of consideration is not adjusted for the effects of a significant financing component when we expect, at contract inception, that the period between the sale and payment will be one year or less. Our individual property disposals do not qualify for discontinued operations presentation; thus, the results of operations through the disposal date and any associated gains are included in income from continuing operations. Some of our properties are held in single purpose entities. A single purpose entity is a legal entity typically established at the request of a lender solely for the purpose of owning a property or group of properties subject to a mortgage. There may be restrictions limiting the entity’s ability to engage in an activity other than owning or operating the property, assuming or guaranteeing the debt of any other entity, or dissolving itself or declaring bankruptcy before the debt has been repaid. Most of our single purpose entities are 100% owned by us and are consolidated in our consolidated financial statements.
Real Estate Joint Ventures And Partnerships	Real Estate Joint Ventures and Partnerships To determine the method of accounting for real estate joint ventures and partnerships, management determines whether an entity is a VIE and, if so, determines which party is the primary beneficiary by analyzing whether we have both the power to direct the entity’s significant economic activities and the obligation to absorb potentially significant losses or receive potentially significant benefits. Significant judgments and assumptions inherent in this analysis include the design of the entity structure, the nature of the entity’s operations, future cash flow projections, the entity’s financing and capital structure, and contractual relationships and terms. We consolidate a VIE when we have determined that we are the primary beneficiary. Primary risks associated with our involvement with our VIEs include the potential funding of the entities’ debt obligations or making additional contributions to fund the entities’ operations or capital activities. Non-variable interest real estate joint ventures and partnerships over which we have a controlling financial interest are consolidated in our consolidated financial statements. In determining if we have a controlling financial interest, we consider factors such as ownership interest, authority to make decisions, kick-out rights and substantive participating rights. Real estate joint ventures and partnerships where we do not have a controlling financial interest, but have the ability to exercise significant influence, are accounted for using the equity method. Management continually analyzes and assesses reconsideration events, including changes in the factors mentioned above, to determine if the consolidation or equity method treatment remains appropriate.
Unamortized Lease Costs, net	Unamortized Lease Costs, net Lease costs represent the initial direct costs incurred in origination, negotiation and processing of a lease agreement. Upon the adoption of ASC No. 842, such costs include outside broker commissions and other independent third party costs, as well as internal leasing commissions paid directly related to completing a lease and are amortized over the life of the lease on a straight-line basis. Prior to the adoption of ASC No. 842, such costs included outside broker commissions and other independent third party costs, as well as salaries and benefits, travel and other internal costs directly related to completing a lease and are amortized over the life of the lease on a straight-line basis. Costs related to salaries and benefits, supervision, administration, unsuccessful origination efforts and other activities are charged to expense as incurred. Also included are in place lease costs which are amortized over the life of the applicable lease term on a straight-line basis.
Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net	Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net Receivables are relatively short-term in nature with terms due in less than one year. Receivables include rental revenue, amounts billed and currently due from customer contracts and receivables attributable to straight-line rental commitments. Accrued contract receivables includes amounts due from customers for contracts that do not qualify as a lease in which we earned the right to the consideration through the satisfaction of the performance obligation, but before the customer pays consideration or before payment is due. Individual leases are assessed for collectability and upon the determination that the collection of rents is not probable, accrued rent and accounts receivables are reduced as an adjustment to rental revenues. Revenue from leases where collection is deemed to be less than probable is recorded on a cash basis until collectability is determined to be probable. Further, we assess whether operating lease receivables, at a portfolio level, are appropriately valued based upon an analysis of balances outstanding, historical bad debt levels and current economic trends. An allowance for the uncollectible portion of the portfolio is recorded as an adjustment to rental revenues. Management’s estimate of the collectability of accrued rents and accounts receivable is based on the best information available to management at the time of evaluation. Prior to the adoption of ASC No. 842, an allowance for the uncollectible portion of accrued rents and accounts receivable was determined based upon an analysis of balances outstanding, historical bad debt levels, tenant creditworthiness and current economic trends. At December 31, 2018, we had an allowance for doubtful accounts totaling $6.9 million (which included charges to bad debt of $2.4 million and deductions of $3.0 million for the year ended December 31, 2018) that was re-characterized upon the adoption of ASC No. 842 as of January 1, 2019, to be appropriately reflected as reductions in Revenues for uncollectible amounts. The duration of the COVID-19 pandemic and its impact on our tenants’ operations, including, in some cases, their ability to resume full operations as governmental and legislative measures are eased, or in some cases reimposed, has caused uncertainty in our ongoing ability to collect rents when due. Considering the potential impact of these uncertainties, our collection assessment also took into consideration the type of tenant and current discussions with the tenants, as well as recent rent collection experience and tenant bankruptcies based on the best information available to management at the time of evaluation. For the year ended December 31, 2020, we reduced rental revenues by $36.1 million due to lease related reserves and write-offs, which included $15.0 million for straight-line rent receivables.
Cash And Cash Equivalents	Cash and Cash Equivalents All highly liquid investments with original maturities of three months or less are considered cash equivalents. Cash and cash equivalents are primarily held at major financial institutions in the U.S. We had cash and cash equivalents in certain financial institutions in excess of federally insured levels. We have diversified our cash and cash equivalents amongst several banking institutions in an attempt to minimize exposure to any one of these entities. We believe we are not exposed to any significant credit risk and regularly monitor the financial stability of these financial institutions.
Restricted Deposits and Escrows	Restricted Deposits and Escrows Restricted deposits are held or restricted for a specific use or in a qualified escrow account for the purposes of completing like-kind exchange transactions. Escrows consist of deposits held by third parties or lenders for a specific use; including, capital improvements, rental income and taxes. Our restricted deposits and escrows consist of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ ​ 2020 ​ 2019 ​ Restricted deposits ​ $ 12,122 ​ $ 12,793 ​ Escrows ​ ​ 216 ​ ​ 1,017 ​ Total ​ $ 12,338 ​ $ 13,810 ​
Other Assets, net	Other Assets, net Other assets include an asset related to the debt service guaranty (see Note 6 for further information), tax increment revenue bonds, right-of-use assets, investments held in a grantor trust, deferred tax assets (see Income Taxes), the net value of above-market leases, deferred debt costs associated with our revolving credit facilities and other miscellaneous receivables. Right-of-use assets are amortized to achieve the recognition of rent expense on a straight-line basis after adjusting for the corresponding lease liabilities’ interest over the lives of the leases. Investments held in a grantor trust are adjusted to fair value at each period with changes included in our Consolidated Statements of Operations. Above-market leases are amortized as adjustments to rental revenues over terms of the acquired leases. Deferred debt costs, including those classified in debt, are amortized primarily on a straight-line basis, which approximates the effective interest rate method, over the terms of the debt. Other miscellaneous receivables are evaluated for credit risk and an allowance is established if there is an estimate for lifetime credit losses. These are based on available information, including historical loss information adjusted for current conditions and forecasts for future economic conditions. Prior to adoption of ASC No. 326, a reserve was applied to the carrying amount of other miscellaneous receivables when it becomes apparent that conditions existed that would lead to our inability to fully collect the outstanding amounts due. Such conditions include delinquent or late payments on receivables, deterioration in the ongoing relationship with the borrower and other relevant factors. Our tax increment revenue bonds have been classified as held to maturity and are recorded at amortized cost offset by a recognized credit loss (see Note 19 for further information). Due to the recognized credit loss, interest on these bonds is recorded at an effective interest rate when cash payments are received. The bonds are evaluated for credit losses based on discounted estimated future cash flows. Any future receipts in excess of the amortized basis will be recognized as revenue when received. The credit risk associated with the amortized value of these bonds is low as the bonds are earmarked for repayments from sales and property taxes associated with a government entity. At December 31, 2020, no credit allowance has been recorded.
Other Liabilities, net	Other Liabilities, net Other liabilities include non-qualified benefit plan liabilities (see Retirement Benefit Plans and Deferred Compensation Plan), lease liabilities and the net value of below-market leases. Lease liabilities are amortized to rent expense using the effective interest rate method, over the lease life. Below-market leases are amortized as adjustments to rental revenues over terms of the acquired leases.
Sales of Real Estate	Sales of Real Estate Sales of real estate include the sale of tracts of land, property adjacent to shopping centers, operating properties, newly developed properties, investments in real estate joint ventures and partnerships and partial sales of real estate joint ventures and partnerships in which we participate. These sales primarily fall under two types of contracts (1) sales of nonfinancial assets (primarily real estate) and (2) sales of investments in real estate joint ventures and partnerships of substantially nonfinancial assets. We review the sale contract to determine appropriate accounting guidance. Profits on sales of real estate are primarily not recognized until (a) a contract exists including: each party’s rights are identifiable along with the payment terms, the contract has commercial substance and the collection of consideration is probable; and (b) the performance obligation to transfer control of the asset has occurred; including transfer to the buyer of the usual risks and rewards of ownership. We recognize gains on the sale of real estate to joint ventures and partnerships in which we participate to the extent we receive consideration from the joint venture or partnership, if it meets the sales criteria in accordance with GAAP.
Impairment	Impairment Our property, including right-of-use assets, is reviewed for impairment if events or changes in circumstances indicate that the carrying amount of the property, any capitalized costs and any identifiable intangible assets, may not be recoverable. If such an event occurs, a comparison is made of the current and projected operating cash flows of each such property into the foreseeable future, with consideration of applicable holding periods, on an undiscounted basis to the carrying amount of such property. If we determine the carrying amount is not recoverable, our basis in the property is reduced to its estimated fair value to reflect impairment in the value of the asset. Fair values are determined by management utilizing cash flow models, market capitalization rates and market discount rates, or by obtaining third-party broker or appraisal estimates. We review economic considerations at each reporting period, including the effects of tenant bankruptcies, the suspension of tenant expansion plans for new development projects, declines in real estate values, and any changes to plans related to our new development properties including land held for development, to identify properties where we believe market values may be deteriorating. Determining whether a property is impaired and, if impaired, the amount of write-down to fair value requires a significant amount of judgment by management and is based on the best information available to management at the time of evaluation. If market conditions deteriorate or management’s plans for certain properties change, additional write-downs could be required in the future. Our investment in real estate joint ventures and partnerships is reviewed for impairment each reporting period. We evaluate various factors, including operating results of the investee, our ability and intent to hold the investment and our views on current market and economic conditions, when determining if there is a decline in the investment value. We will record an impairment charge if we determine that a decline in the estimated fair value of an investment below its carrying amount is other than temporary. The ultimate realization is dependent on a number of factors, including the performance of each investment and market conditions. There is no certainty that impairments will not occur in the future if market conditions decline or if management’s plans for these investments change. See Note 10 for additional information regarding impairments.
Income Taxes	Income Taxes We have elected to be treated as a REIT under the Internal Revenue Code of 1986, as amended. As a REIT, we generally will not be subject to corporate level federal income tax on taxable income we distribute to our shareholders. To be taxed as a REIT, we must meet a number of requirements including defined percentage tests concerning the amount of our assets and revenues that come from, or are attributable to, real estate operations. As long as we distribute at least 90% of the taxable income of the REIT (without regard to capital gains or the dividends paid deduction) to our shareholders as dividends, we will not be taxed on the portion of our income we distribute as dividends unless we have ineligible transactions. The Tax Relief Extension Act of 1999 gave REITs the ability to conduct activities which a REIT was previously precluded from doing as long as such activities are performed in entities which have elected to be treated as taxable REIT subsidiaries under the IRS code. These activities include buying or developing properties with the express purpose of selling them. We conduct certain of these activities in a taxable REIT subsidiary that we have created. We calculate and record income taxes in our consolidated financial statements based on the activities in this entity. Deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to differences between our carrying amounts of existing assets and liabilities and their respective tax bases and net operating loss and tax credit carry-forwards. These are measured using enacted tax rates in effect for the year in which those temporary differences are expected to be recovered or settled. A valuation allowance for deferred tax assets is established for those assets when we do not consider the realization of such assets to be more likely than not. On March 27, 2020, the President signed the Coronavirus Aid, Relief and Economic Security (“CARES”) Act into law. The enacted CARES Act tax provisions include, but are not limited to, changes to the NOL deduction, the business interest expense limitation and depreciation. Management’s evaluation of deferred taxes and the associated valuation allowance includes the impact of the CARES Act. Additionally, GAAP prescribes a recognition threshold and measurement attribute for the financial statement recognition of a tax position taken, or expected to be taken, in a tax return. A tax position may only be recognized in the consolidated financial statements if it is more likely than not that the tax position will be sustained upon examination. We believe it is more likely than not that our tax positions will be sustained in any tax examinations. In addition, we are subject to the State of Texas business tax (“Texas Franchise Tax”), which is determined by applying a tax rate to a base that considers both revenues and expenses. Therefore, the Texas Franchise Tax is considered an income tax and is accounted for accordingly.
Share-Based Compensation	Share-Based Compensation We have both share options and share awards outstanding. Since 2012, our employee long-term incentive program under our Amended and Restated 2010 Long-Term Incentive Plan grants only awards that incorporate both service-based and market-based measures for share awards to promote share ownership among the participants and to emphasize the importance of total shareholder return. The terms of each grant vary depending upon the participant’s responsibilities and position within the Company. All awards are recorded at fair value on the date of grant and earn dividends throughout the vesting period; however, the dividends are subject to the same vesting terms as the award. Compensation expense is measured at the grant date and recognized over the vesting period. All share awards are awarded subject to the participant’s continued employment with us. The share awards are subject to a three-year cliff vesting basis. Service-based and market-based share awards are subject to the achievement of select performance goals as follows: ● Service-based awards and accumulated dividends typically vest three years from the grant date. These grants are subject only to continued employment and not dependent on future performance measures. Accordingly, if such vesting criteria are not met, compensation cost previously recognized would be reversed. ● Market-based awards vest based upon the performance metrics at the end of a three-year period. These awards are based 50% on our three-year relative total shareholder return (“TSR”) as compared to the FTSE NAREIT U.S. Shopping Center Index. The other 50% is tied to our three-year absolute TSR, which is currently compared to a 6% hurdle. At the end of a three-year period, the performance measures are analyzed; the actual number of shares earned is determined; and the earned shares and the accumulated dividends vest. The probability of meeting the market criteria is considered when calculating the estimated fair value on the date of grant using a Monte Carlo simulation. These awards are accounted for as awards with market criteria, with compensation cost recognized over the service period, regardless of whether the market criteria are achieved and the awards are ultimately earned and vest. Restricted shares granted to trust managers and share awards granted to retirement eligible employees are expensed immediately. Restricted shares and share awards have the same rights of a common shareholder, including the right to vote and receive dividends, except as otherwise provided by our Management Development and Executive Compensation Committee. Options generally expire upon the earlier of termination of employment or 10 years from the date of grant, and all restricted shares are granted at no purchase price. Our policy is to recognize compensation expense for equity awards ratably over the vesting period, except for retirement eligible amounts.
Retirement Benefit Plans	Retirement Benefit Plans Defined Benefit Plan: We sponsor a noncontributory cash balance retirement plan (“Retirement Plan”) under which an account is maintained for each participant. Annual additions to each participant’s account include a service credit ranging from 3%-5% of compensation, depending on years of service, and an interest credit of 4.5%. Vesting generally occurs after three years of service. Investments of Plan Assets Our investment policy for our plan assets has been to determine the objectives for structuring a retirement savings program suitable to the long-term needs and risk tolerances of participants, to select appropriate investments to be offered by the plan and to establish procedures for monitoring and evaluating the performance of the investments of the plan. Our overall plan objectives for selecting and monitoring investment options are to promote and optimize retirement wealth accumulation; to provide a full range of asset classes and investment options that are intended to help diversify the portfolio to maximize return within reasonable and prudent levels of risk; to control costs of administering the plan; and to manage the investments held by the plan. The selection of investment options is determined using criteria based on the following characteristics: fund history, relative performance, investment style, portfolio structure, manager tenure, minimum assets, expenses and operation considerations. Investment options selected for use in the plan are reviewed at least on a semi-annual basis to evaluate material changes from the selection criteria. Asset allocation is used to determine how the investment portfolio should be split between stocks, bonds and cash. The asset allocation decision is influenced by investment time horizon; risk tolerance; and investment return objectives. The primary factor in establishing asset allocation is demographics of the plan, including attained age and future service. A broad market diversification model is used in considering all these factors, and the percentage allocation to each investment category may also vary depending upon market conditions. Re-balancing of the allocation of plan assets occurs semi-annually. Defined Contribution Plans: We have two separate and independent nonqualified supplemental retirement plans (“SRP”) for certain employees that are classified as defined contribution plans. These unfunded plans provide benefits in excess of the statutory limits of our noncontributory cash balance retirement plan. For active participants, annual additions to each participant’s account include an actuarially-determined service credit ranging from 3% to 5% and an interest credit of 4.5%. Vesting generally occurs between five The SRP participants’ account balances prior to 2012 no longer receive service credits but continue to receive a 7.5% interest credit for active participants. All inactive participants receive a December 31, 90-day LIBOR rate plus .50% interest credit. We have a Savings and Investment Plan pursuant to which eligible employees may elect to contribute from 1% of their salaries to the maximum amount established annually by the IRS. Employee contributions are matched by us at the rate of 50% for the first 6% of the employee’s salary. The employees vest in the employer contributions ratably over a five-year period. Deferred Compensation Plan We have a deferred compensation plan for eligible employees allowing them to defer portions of their current cash salary or share-based compensation. Deferred amounts are deposited in a grantor trust, which are included in Other, net Assets, and are reported as compensation expense in the year service is rendered. Cash deferrals are invested based on the employee’s investment selections from a mix of assets selected using a broad market diversification model. Deferred share-based compensation cannot be diversified, and distributions from this plan are made in the same form as the original deferral.
Fair Value Measurements	Fair Value Measurements Certain financial instruments, estimates and transactions are required to be calculated, reported and/or recorded at fair value. The estimated fair values of such financial items, including debt instruments, impaired assets, acquisitions and investment securities, have been determined using a market-based measurement. This measurement is determined based on the assumptions that management believes market participants would use in pricing an asset or liability; including, market capitalization rates, discount rates, current operating results, local economics and other factors. As a basis for considering market participant assumptions in fair value measurements, GAAP establishes a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy). Level 1 inputs utilize quoted prices (unadjusted) in active markets for identical assets or liabilities that we have the ability to access. Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. Level 2 inputs may include quoted prices for similar assets and liabilities in active markets, as well as inputs that are observable for the asset or liability (other than quoted prices), such as interest rates and yield curves that are observable at commonly quoted intervals. Level 3 inputs are unobservable inputs for the asset or liability, which is typically based on an entity’s own assumptions, as there is little, if any, related market activity. In instances where the determination of the fair value measurement is based on inputs from different levels of the fair value hierarchy, the level in the fair value hierarchy within which the entire fair value measurement falls is based on the lowest level input that is significant to the fair value measurement in its entirety. Our assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the asset or liability. The fair value of such financial instruments, estimates and transactions was determined using available market information and appropriate valuation methodologies as prescribed by GAAP. Internally developed and third party fair value measurements, including the unobservable inputs, are evaluated by management with sufficient experience for reasonableness based on current market knowledge, trends and transactional experience in the real estate and capital markets. Our valuation policies and procedures are determined by our Accounting Group, which reports to the Chief Financial Officer and the results of significant impairment transactions are discussed with the Audit Committee on a quarterly basis. Fair value estimates are based on limited available market information for similar transactions, including our tax increment revenue bonds and debt, and there can be no assurance that the disclosed value of any financial instrument could be realized by immediate settlement of the instrument. The following provides information about the methods used to estimate the fair value of our financial instruments, including their estimated fair values: Cash Equivalents and Restricted Cash Cash equivalents and restricted cash are valued based on publicly-quoted market prices for identical assets. Investments and Deferred Compensation Plan Obligations Investments in mutual funds held in a grantor trust and mutual funds are valued based on publicly-quoted market prices for identical assets. The deferred compensation plan obligations corresponds to the value of our investments held in a grantor trust. Tax Increment Revenue Bonds The fair value estimates of our held to maturity tax increment revenue bonds, which were issued by the Agency in connection with our investment in a development project in Sheridan, Colorado, are based on assumptions that management believes market participants would use in pricing, using widely accepted valuation techniques including discounted cash flow analysis based on the expected future sales tax revenues of the project. This analysis reflects the contractual terms of the bonds, including the period to maturity, and uses observable market-based inputs, such as market discount rates and unobservable market-based inputs, such as future growth and inflation rates. Debt The fair value of our debt may be based on quoted market prices for publicly-traded debt, on a third-party established benchmark for inactively traded debt and on the discounted estimated future cash payments to be made for non-traded debt. For inactively traded debt, our third-party provider establishes a benchmark for all REIT securities based on the largest, most liquid and most frequent investment grade securities in the REIT bond market. This benchmark is then adjusted to consider how a market participant would be compensated for risk premiums such as, longevity of maturity dates, lack of liquidity and credit quality of the issuer. The discount rates used approximate current lending rates for loans or groups of loans with similar maturities and credit quality, assumes the debt is outstanding through maturity and considers the debt’s collateral (if applicable). We have utilized market information as available or present value techniques to estimate the amounts required to be disclosed.
Reportable Segments	Reportable Segments Our primary focus is to lease space to tenants in shopping centers that we own, lease or manage. We evaluate the performance of the reportable segments based on net operating income, defined as total revenues less operating expenses and real estate taxes. Management does not consider the effect of gains or losses from the sale of property or interests in real estate joint ventures and partnerships in evaluating segment operating performance. No individual property constitutes more than 10% of our revenues or assets, and we have no operations outside of the United States of America. Therefore, our properties have been aggregated into one reportable segment since such properties and the tenants thereof each share similar economic and operating characteristics.
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Changes in accumulated other comprehensive loss by component consists of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Defined ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Benefit ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pension ​ ​ ​ ​ ​ Gain ​ Gain on ​ Plan- ​ ​ ​ ​ ​ on ​ Cash Flow ​ Actuarial ​ ​ ​ ​ Investments ​ Hedges ​ Loss ​ Total Balance, January 1, 2018 ​ $ (1,541) ​ $ (7,424) ​ $ 15,135 ​ $ 6,170 Cumulative effect adjustment of accounting standards ​ 1,541 ​ — ​ — ​ 1,541 Change excluding amounts reclassified from accumulated other comprehensive loss ​ — ​ (1,379) ​ 1,143 ​ (236) Amounts reclassified from accumulated other comprehensive loss ​ — ​ 4,302 (1) ​ (1,228) (2) 3,074 Net other comprehensive loss (income) ​ — ​ 2,923 ​ (85) ​ 2,838 Balance, December 31, 2018 ​ — ​ (4,501) ​ 15,050 ​ 10,549 Change excluding amounts reclassified from accumulated other comprehensive loss ​ — ​ — ​ ​ 1,044 ​ 1,044 Amounts reclassified from accumulated other comprehensive loss ​ — ​ 887 (1) (1,197) (2) (310) Net other comprehensive loss (income) ​ — ​ 887 ​ (153) ​ 734 Balance, December 31, 2019 ​ — ​ (3,614) ​ 14,897 ​ 11,283 Change excluding amounts reclassified from accumulated other comprehensive loss ​ — ​ — ​ 898 ​ 898 Amounts reclassified from accumulated other comprehensive loss ​ — ​ 890 (1) (1,021) (2) (131) Net other comprehensive loss (income) ​ — ​ 890 ​ (123) ​ 767 Balance, December 31, 2020 ​ $ — ​ $ (2,724) ​ $ 14,774 ​ $ 12,050 (1) This reclassification component is included in interest expense. (2) This reclassification component is included in the computation of net periodic benefit cost (see Note 15 for additional information). Additionally, as of December 31, 2020 and 2019, the net gain balance in accumulated other comprehensive loss relating to previously terminated cash flow interest rate swap contracts was $2.7 million and $3.6 million, respectively, which will be reclassified to net interest expense as interest payments are made on the originally hedged debt. Within the next 12 months, approximately $.9 million in accumulated other comprehensive loss is expected to be reclassified as a reduction to interest expense related to our interest rate contracts.
Newly Issued Accounting Pronouncements	Adopted In June 2016, the FASB issued Accounting Standard Update ("ASU") No. 2016-13, "Measurement of Credit Losses on Financial Instruments." This ASU was further updated by ASU No. 2018-19, "Codification Improvements to Topic 326, Financial Instruments - Credit Losses," ASU No. 2019-04, "Codification Improvements to Topic 326, Financial Instruments - Credit Losses," ASU No. 2019-05, "Targeted Transition Relief," ASU No. 2019-11, "Codification Improvements to Topic 326, Financial Instruments - Credit Losses" and ASU No. 2020-02, “Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 119.” These ASUs amend prior guidance on the impairment of financial instruments, and adds an impairment model that is based on expected losses rather than incurred losses with the recognition of an allowance based on an estimate of expected credit losses. The provisions of ASU No. 2016-13, as amended in subsequently issued amendments, were effective for us as of January 1, 2020. In identifying all of our financial instruments covered under this guidance, the majority of our instruments result from operating leasing transactions, which are not within the scope of the new standard and are to remain governed by the recently issued leasing guidance and other previously issued guidance. Upon adoption at January 1, 2020, we recognized, using the modified retrospective approach, a cumulative effect for credit losses, which has decreased each of retained earnings and other In August 2018, the FASB issued ASU No. 2018-13, "Changes to the Disclosure Requirements for Fair Value Measurement." This ASU amends and removes several disclosure requirements including the valuation processes for Level 3 fair value measurements. The ASU also modifies some disclosure requirements and requires additional disclosures for changes in unrealized gains and losses included in other comprehensive income for recurring Level 3 fair value measurements and requires the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurements. The provisions of ASU No. 2018-13 were effective for us as of January 1, 2020 using a prospective transition method for amendments effecting changes in unrealized gains and losses, significant unobservable inputs used to develop Level 3 fair value measurements and narrative description on uncertainty of measurements. The remaining provisions of the ASU were not applicable to us. The adoption of this ASU did not have a material impact to our consolidated financial statements. In August 2018, the FASB issued ASU No. 2018-14, "Changes to the Disclosure Requirements for Defined Benefit Plans." This ASU clarifies current disclosures and removes several disclosures requirements including accumulated other comprehensive income expected to be recognized over the next fiscal year and amount and timing of plan assets expected to be returned to the employer. The ASU also requires additional disclosures for the weighted-average interest crediting rates for cash balance plans and explanations for significant gains and losses related to changes in the benefit plan obligation. The provisions of ASU No. 2018-14 are effective for us as of December 31, 2020 using a retrospective basis for all periods presented. The adoption of this ASU did not have a material impact to our consolidated financial statements. See Note 15 for additional information. In December 2019, the FASB issued ASU No. 2019-12, "Simplifying the Accounting for Income Taxes." This ASU clarifies/simplifies current disclosures and removes several disclosures requirements. Simplification includes franchise taxes based partially on income as an income-based tax; entities should reflect enacted tax law and rate changes in the interim period that includes the enactment date; and allowing entities to allocate consolidated tax amounts to individual legal entities under certain elections. The provisions of ASU No. 2019-12 are effective for us as of January 1, 2021; however, we early adopted the provisions as permitted at December 31, 2020. The adoption of this ASU did not have a material impact to our consolidated financial statements. Not Yet Adopted In March 2020, the FASB issued ASU No. 2020-04, “Reference Rate Reform (Topic 848)”, as amended by ASU No. 2021-01. This ASU contains practical expedients for reference rate reform related activities that impact debt, leases, derivatives and other contracts. The guidance in this ASU is optional and may be elected over time as reference rate reform activities occur. At January 1, 2020, we elected to apply the hedge accounting expedients related to probability and the assessments of effectiveness for future LIBOR-indexed cash flows to assume that the index upon which future hedged transactions will be based matches the index on the corresponding derivatives. Application of these expedients preserves the presentation of derivatives consistent with past presentation. The adoption of this portion of the ASU did not have a material impact to our consolidated financial statements. We continue to evaluate the impact of the guidance and may apply other elections as applicable as additional changes in the market occur. ​ In August 2020, the FASB issued ASU No. 2020-06, “Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity.” The guidance in this ASU simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, including convertible instruments and contracts on an entity’s own equity. This simplification results by removing major separation models required under current GAAP. Additionally, it removes certain settlement conditions that are required for equity contracts to qualify for the derivative scope exception and simplifies the diluted earnings per share calculation. The provisions of ASU No. 2020-06 are effective for us as of January 1, 2022 using either a modified retrospective method or a fully retrospective method, and early adoption is permitted beginning for us as of January 1, 2021. Although we are still assessing the impact of this ASU's adoption, we do not believe this ASU will have a material impact to our consolidated financial statements.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2020
Accounting Policies [Abstract]
Schedule of Each Contract Type, that Represent Performance Obligations	​ ​ ​ ​ ​ ​ ​ Contract Type Performance Obligation Description Elements of Performance Obligations Payment Timing Management Agreements ​ ● ● ● ​ ● ● ● ​ Typically monthly or quarterly ​ ​ ● ● ​ ● ● ​ ​ Licensing and Occupancy Agreements ​ ● ​ ● ● ● ​ Typically monthly ​ ​ ● ​ ● ● ​ ​ Non-tenant Contracts ​ ● ​ ● ● ​ Typically monthly ​ ​ ● ​ ● ● ​ ​ ​
Schedule Of Restricted Deposits and Escrows	Our restricted deposits and escrows consist of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ ​ 2020 ​ 2019 ​ Restricted deposits ​ $ 12,122 ​ $ 12,793 ​ Escrows ​ ​ 216 ​ ​ 1,017 ​ Total ​ $ 12,338 ​ $ 13,810 ​
Schedule Of Accumulated Other Comprehensive Loss	Changes in accumulated other comprehensive loss by component consists of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Defined ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Benefit ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Pension ​ ​ ​ ​ ​ Gain ​ Gain on ​ Plan- ​ ​ ​ ​ ​ on ​ Cash Flow ​ Actuarial ​ ​ ​ ​ Investments ​ Hedges ​ Loss ​ Total Balance, January 1, 2018 ​ $ (1,541) ​ $ (7,424) ​ $ 15,135 ​ $ 6,170 Cumulative effect adjustment of accounting standards ​ 1,541 ​ — ​ — ​ 1,541 Change excluding amounts reclassified from accumulated other comprehensive loss ​ — ​ (1,379) ​ 1,143 ​ (236) Amounts reclassified from accumulated other comprehensive loss ​ — ​ 4,302 (1) ​ (1,228) (2) 3,074 Net other comprehensive loss (income) ​ — ​ 2,923 ​ (85) ​ 2,838 Balance, December 31, 2018 ​ — ​ (4,501) ​ 15,050 ​ 10,549 Change excluding amounts reclassified from accumulated other comprehensive loss ​ — ​ — ​ ​ 1,044 ​ 1,044 Amounts reclassified from accumulated other comprehensive loss ​ — ​ 887 (1) (1,197) (2) (310) Net other comprehensive loss (income) ​ — ​ 887 ​ (153) ​ 734 Balance, December 31, 2019 ​ — ​ (3,614) ​ 14,897 ​ 11,283 Change excluding amounts reclassified from accumulated other comprehensive loss ​ — ​ — ​ 898 ​ 898 Amounts reclassified from accumulated other comprehensive loss ​ — ​ 890 (1) (1,021) (2) (131) Net other comprehensive loss (income) ​ — ​ 890 ​ (123) ​ 767 Balance, December 31, 2020 ​ $ — ​ $ (2,724) ​ $ 14,774 ​ $ 12,050 (1) This reclassification component is included in interest expense. (2) This reclassification component is included in the computation of net periodic benefit cost (see Note 15 for additional information).

Property (Tables)

Property (Tables)	12 Months Ended
	Dec. 31, 2020
Real Estate [Abstract]
Schedule of Property	Our property consists of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2020 2019 Land ​ $ 948,622 ​ $ 911,521 Land held for development ​ 39,936 ​ 40,667 Land under development ​ 19,830 ​ 53,076 Buildings and improvements ​ 3,082,509 ​ 2,898,867 Construction in-progress ​ 155,437 ​ 241,118 Total ​ $ 4,246,334 ​ $ 4,145,249

Investment In Real Estate Joi_2

Investment In Real Estate Joint Ventures And Partnerships (Tables)	12 Months Ended
	Dec. 31, 2020
Equity Method Investments and Joint Ventures [Abstract]
Schedule Of Combined Condensed Balance Sheets and Statements of Operations	Combined condensed financial information of these ventures (at 100%) is summarized as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 2019 Combined Condensed Balance Sheets ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ASSETS ​ ​ ​ ​ Property ​ $ 1,093,504 ​ $ 1,378,328 Accumulated depreciation ​ (275,802) ​ (331,856) Property, net ​ 817,702 ​ 1,046,472 Other assets, net ​ 81,285 ​ 108,366 Total Assets ​ $ 898,987 ​ $ 1,154,838 ​ ​ ​ ​ ​ ​ ​ LIABILITIES AND EQUITY ​ ​ Debt, net (primarily mortgages payable) ​ $ 192,674 ​ $ 264,782 Amounts payable to Weingarten Realty Investors and Affiliates ​ 9,836 ​ 11,972 Other liabilities, net ​ 15,340 ​ 25,498 Total Liabilities ​ 217,850 ​ 302,252 Equity ​ 681,137 ​ 852,586 Total Liabilities and Equity ​ $ 898,987 ​ $ 1,154,838 ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 2019 2018 Combined Condensed Statements of Operations ​ ​ ​ ​ ​ ​ Revenues, net ​ $ 124,409 ​ $ 135,258 ​ $ 133,975 Expenses: ​ ​ ​ Depreciation and amortization ​ 35,971 ​ 32,126 ​ 32,005 Interest, net ​ 9,175 ​ 9,664 ​ 11,905 Operating ​ 24,775 ​ 25,046 ​ 24,112 Real estate taxes, net ​ 16,733 ​ 18,070 ​ 18,839 General and administrative ​ 601 ​ 551 ​ 696 Provision for income taxes ​ 121 ​ 133 ​ 138 Total ​ 87,376 ​ 85,590 ​ 87,695 Gain on dispositions ​ 47,002 ​ 2,009 ​ 9,495 Net income ​ $ 84,035 ​ $ 51,677 ​ $ 55,775

Identified Intangible Assets _2

Identified Intangible Assets And Liabilities (Tables)	12 Months Ended
	Dec. 31, 2020
Finite-Lived Intangible Assets [Line Items]
Identifiable Intangible Assets And Liabilities Associated With Acquisition Of Property	Identified intangible assets and liabilities associated with our property acquisitions are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Identified Intangible Assets: ​ ​ Above-market leases (included in Other Assets, net) ​ $ 23,877 ​ $ 23,830 Above-market leases - Accumulated Amortization ​ (12,551) ​ (12,145) In place leases (included in Unamortized Lease Costs, net) ​ 235,082 ​ 196,207 In place leases - Accumulated Amortization ​ (102,772) ​ (92,918) ​ ​ $ 143,636 ​ $ 114,974 Identified Intangible Liabilities: ​ ​ Below-market leases (included in Other Liabilities, net) ​ $ 92,855 ​ $ 95,240 Below-market leases - Accumulated Amortization ​ (34,647) ​ (32,326) Above-market assumed mortgages (included in Debt, net) ​ 7,694 ​ 3,446 Above-market assumed mortgages - Accumulated Amortization ​ (2,408) ​ (1,987) ​ ​ $ 63,494 ​ $ 64,373
Schedule of Acquired Finite-Lived Intangible Assets And Liabilities And Remaining Weighted-Average Amortization Period	The following table details the identified intangible assets and liabilities and the remaining weighted-average amortization period associated with our asset acquisitions in 2020 and 2019 as follows: ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2020 ​ 2019 Identified intangible assets and liabilities subject to amortization (in thousands): ​ ​ ​ ​ ​ ​ Assets: ​ ​ ​ ​ ​ ​ In place leases ​ $ 48,562 ​ $ 30,253 Above-market leases ​ ​ 1,901 ​ 1,323 Liabilities: ​ ​ ​ Below-market leases ​ ​ 5,205 ​ 13,762 Above-market assumed mortgages ​ ​ 4,249 ​ ​ — ​ ​ ​ ​ ​ ​ ​ Identified intangible assets and liabilities remaining weighted-average amortization period (in years): ​ ​ ​ Assets: ​ ​ ​ In place leases ​ ​ 7.8 ​ 11.0 Above-market leases ​ ​ 7.1 ​ 7.2 Liabilities: ​ ​ ​ Below-market leases ​ ​ 7.8 ​ 13.5 Above-market assumed mortgages ​ ​ 8.3 ​ ​ —
Above-Market and Below-Market Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Identifiable Intangible Assets And Liabilities Associated With Acquisition Of Property	The estimated net amortization of these intangible assets and liabilities will increase rental revenues for each of the next five years as follows (in thousands): ​ ​ ​ ​ ​ 2021 $ 4,691 2022 ​ 4,357 2023 ​ 4,172 2024 ​ 4,032 2025 ​ 3,234
Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets [Line Items]
Schedule Of Future Amortization	The estimated amortization of these intangible assets will increase depreciation and amortization for each of the next five years as follows (in thousands): ​ ​ ​ ​ ​ 2021 $ 19,580 2022 ​ 17,103 2023 ​ 15,549 2024 ​ 13,491 2025 ​ 12,204
Above-Market Assumed Mortgages [Member]
Finite-Lived Intangible Assets [Line Items]
Schedule of Future Amortization	The estimated net amortization of these intangible liabilities will decrease net interest expense for each of the next five years as follows (in thousands): ​ ​ ​ ​ ​ 2021 $ 789 2022 ​ 643 2023 ​ 638 2024 ​ 638 2025 ​ 638

Debt (Tables)

Debt (Tables)	12 Months Ended
	Dec. 31, 2020
Debt Disclosure [Abstract]
Schedule Of Debt	Our debt consists of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2020 2019 Debt payable, net to 2038 (1) ​ $ 1,723,073 ​ $ 1,653,154 Unsecured notes payable under credit facilities ​ ​ 40,000 ​ ​ — Debt service guaranty liability ​ ​ 53,650 ​ ​ 57,380 Finance lease obligation ​ ​ 21,696 ​ ​ 21,804 Total ​ $ 1,838,419 ​ $ 1,732,338 (1) At both December 31, 2020 and 2019, interest rates ranged from 3.3% to 7.0% at a weighted average rate of 3.9% .
Grouping Of Debt Between Fixed And Variable As Well As Secured And Unsecured	The allocation of total debt between fixed and variable-rate as well as between secured and unsecured is summarized below (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 2019 As to interest rate (including the effects of interest rate contracts): ​ ​ ​ ​ Fixed-rate debt ​ $ 1,798,419 ​ $ 1,714,890 Variable-rate debt ​ 40,000 ​ 17,448 Total ​ $ 1,838,419 ​ $ 1,732,338 As to collateralization: ​ ​ Unsecured debt ​ $ 1,488,909 ​ $ 1,450,762 Secured debt ​ 349,510 ​ 281,576 Total ​ $ 1,838,419 ​ $ 1,732,338
Schedule Of Credit Facilities	The following table discloses certain information regarding our unsecured notes payable under our credit facilities (in thousands, except percentages): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 2019 Unsecured revolving credit facility: ​ ​ ​ ​ Balance outstanding ​ $ 40,000 ​ $ — ​ Available balance ​ 458,068 ​ 497,946 ​ Letters of credit outstanding under facility ​ 1,932 ​ 2,054 ​ Variable interest rate (excluding facility fee) ​ 0.94 % — % Unsecured short-term facility: ​ ​ ​ Balance outstanding ​ $ — ​ $ — ​ Variable interest rate (excluding facility fee) ​ — % — % Both facilities: ​ ​ ​ Maximum balance outstanding during the period (1) ​ $ 497,000 ​ $ 5,000 ​ Weighted average balance ​ 74,311 ​ 123 ​ Year-to-date weighted average interest rate (excluding facility fee) ​ 1.0 % 3.3 % (1) At March 31, 2020, we drew down the available balance of our unsecured revolving credit facility to increase liquidity and preserve financial flexibility in light of the uncertainty regarding the COVID-19 pandemic on the markets at that time, which we subsequently repaid due to the stability of the financial markets.
Principal Payments Of Debt	Scheduled principal payments on our debt (excluding $40.0 million unsecured notes payable under our credit facilities, $21.7 million of a finance lease obligation, $(3.1) million net premium/(discount) on debt, $(4.5) million of deferred debt costs, $5.3 million of non-cash debt-related items, and $53.7 million debt service guaranty liability) are due during the following years (in thousands): ​ ​ ​ ​ 2021 $ 18,795 2022 ​ ​ 308,298 2023 ​ 348,207 2024 ​ 252,561 2025 ​ 294,232 2026 ​ 277,733 2027 ​ 53,604 2028 ​ 92,159 2029 ​ 70,304 2030 ​ 950 Thereafter ​ 8,569 Total ​ $ 1,725,412

Lease Obligations (Tables)

Lease Obligations (Tables)	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Schedule of Lease Costs including Weighted Average Lease Terms and Weighted-average Discount Rates	A schedule of lease costs including weighted average lease terms and weighted-average discount rates is as follows (in thousands, except as noted): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 2019 Lease cost: ​ ​ ​ ​ ​ ​ ​ Operating lease cost: ​ ​ ​ ​ ​ Included in Operating expense ​ $ 2,977 ​ $ 3,044 ​ Included in General and administrative expense ​ 370 ​ 302 ​ Finance cost: ​ ​ ​ Amortization of right-of-use asset (included in Depreciation and Amortization) ​ 182 ​ 174 ​ Interest on lease liability (included in Interest expense, net) ​ 1,635 ​ 1,642 ​ Short-term lease cost ​ — ​ 44 ​ Variable lease cost ​ 244 ​ 309 ​ Sublease income (included in Rentals, net) ​ (26,539) ​ (27,400) ​ Total lease cost ​ $ (21,131) ​ $ (21,885) ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ ​ 2020 ​ 2019 ​ Weighted-average remaining lease term (in years): ​ ​ ​ Operating leases ​ 40.7 ​ 41.5 ​ Finance lease ​ 3.0 ​ 4.0 ​ ​ ​ ​ ​ ​ ​ ​ ​ Weighted-average discount rate (percentage): ​ ​ ​ Operating leases ​ 4.9 % 4.9 % Finance lease ​ 7.5 % 7.5 %
Reconciliation of Lease Liabilities, Lessee, Operating Lease	A reconciliation of our lease liabilities on an undiscounted cash flow basis, which primarily represents shopping center ground leases, for the subsequent five years and thereafter, as calculated as of December 31, 2020, is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ Operating Finance Lease payments: ​ ​ 2021 ​ $ 2,717 ​ $ 1,751 2022 ​ ​ 2,698 ​ ​ 1,759 2023 ​ ​ 2,582 ​ ​ 23,037 2024 ​ ​ 2,222 ​ ​ — 2025 ​ ​ 2,082 ​ ​ — Thereafter ​ ​ 95,105 ​ ​ — Total ​ $ 107,406 ​ $ 26,547 ​ ​ ​ ​ ​ ​ ​ Lease liabilities (1) ​ 42,888 ​ 21,696 Undiscounted excess amount ​ $ 64,518 ​ $ 4,851 (1) Operating lease liabilities are included in Other Liabilities, and finance lease liabilities are included in Debt, net in our Consolidated Balance Sheet.
Reconciliation of Lease Liabilities, Finance Lease, Maturity	A reconciliation of our lease liabilities on an undiscounted cash flow basis, which primarily represents shopping center ground leases, for the subsequent five years and thereafter, as calculated as of December 31, 2020, is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ Operating Finance Lease payments: ​ ​ 2021 ​ $ 2,717 ​ $ 1,751 2022 ​ ​ 2,698 ​ ​ 1,759 2023 ​ ​ 2,582 ​ ​ 23,037 2024 ​ ​ 2,222 ​ ​ — 2025 ​ ​ 2,082 ​ ​ — Thereafter ​ ​ 95,105 ​ ​ — Total ​ $ 107,406 ​ $ 26,547 ​ ​ ​ ​ ​ ​ ​ Lease liabilities (1) ​ 42,888 ​ 21,696 Undiscounted excess amount ​ $ 64,518 ​ $ 4,851 (1) Operating lease liabilities are included in Other Liabilities, and finance lease liabilities are included in Debt, net in our Consolidated Balance Sheet.
Schedule of Future Sublease Payments for Ground Lease Rentals	Future undiscounted, sublease payments applicable to the ground lease rentals, under the terms of all non-cancelable tenant leases, excluding estimated variable payments for the subsequent five years and thereafter ending December 31, as calculated as of December 31, 2020, were as follows (in thousands): ​ ​ ​ ​ ​ Sublease payments: ​ ​ ​ Finance lease (1) ​ $ 10,286 ​ Operating leases: ​ ​ ​ 2021 ​ $ 23,110 ​ 2022 ​ ​ 21,351 ​ 2023 ​ ​ 19,813 ​ 2024 ​ ​ 15,668 ​ 2025 ​ ​ 11,273 ​ Thereafter ​ ​ 36,826 ​ Total ​ $ 128,041 ​ (1) The sublease payments related to our finance lease represents cumulative payments through the lease term ending in 2023.

Leasing Operations (Tables)

Leasing Operations (Tables)	12 Months Ended
	Dec. 31, 2020
Leases [Abstract]
Schedule of future undiscounted lease payments for tenant leases, excluding estimated variable payments	Future undiscounted, lease payments for tenant leases, excluding estimated variable payments, at December 31, 2020 is as follows (in thousands): ​ ​ ​ ​ 2021 ​ ​ 329,001 2022 ​ ​ 283,036 2023 ​ ​ 239,768 2024 ​ ​ 192,197 2025 ​ ​ 146,270 Thereafter ​ ​ 448,593 Total payments due ​ $ 1,638,865
Schedule of Variable Lease, Payment	Variable lease payments recognized in Rentals, net are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 Variable lease payments ​ $ 100,093 ​ $ 109,685
Schedule Of Contingent Rental Income	Contingent rentals recognized in Rentals, net are as follows (in thousands): ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2018 Contingent rentals ​ $ 118,703

Impairment (Tables)

Impairment (Tables)	12 Months Ended
	Dec. 31, 2020
Asset Impairment Charges [Abstract]
Schedule of Impairment Charges	The following impairment charges were recorded on the following assets based on the difference between the carrying amount of the assets and the estimated fair value (see Note 19 for additional fair value information) (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2020 2019 2018 Operating expenses: ​ ​ ​ ​ ​ ​ Properties held for sale, under contract for sale or sold (1) ​ $ 24,109 ​ $ — ​ $ 9,969 Land held for development and undeveloped land (1) ​ 44 ​ 74 ​ 151 Total impairment charges ​ 24,153 ​ 74 ​ 10,120 Other financial statement captions impacted by impairment: ​ ​ ​ Equity in earnings of real estate joint ventures and partnerships, net (1) ​ — ​ 3,070 ​ — Net income attributable to noncontrolling interests ​ — ​ (17) ​ (17) Net impact of impairment charges ​ $ 24,153 ​ $ 3,127 ​ $ 10,103 (1) Amounts reported were based on changes in management’s plans or intent for the properties or investments in real estate joint ventures and partnerships, third party offers, recent comparable market transactions and/or a change in market conditions.

Income Tax Considerations (Tabl

Income Tax Considerations (Tables)	12 Months Ended
	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Schedule Of Reconciling Net Income Adjusted For Noncontrolling Interests To REIT Taxable Income	The following table reconciles net income adjusted for noncontrolling interests to REIT taxable income (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2020 2019 2018 Net income adjusted for noncontrolling interests ​ $ 112,149 ​ $ 315,435 ​ $ 327,601 Net loss (income) of taxable REIT subsidiary included above ​ 206 ​ (32,225) ​ (13,496) Net income from REIT operations ​ 112,355 ​ 283,210 ​ 314,105 Book depreciation and amortization ​ 147,660 ​ 132,957 ​ 158,607 Tax depreciation and amortization ​ (82,414) ​ (75,824) ​ (89,700) Book/tax difference on gains/losses from capital transactions ​ (54,476) ​ (89,217) ​ 19,807 Deferred/prepaid/above and below-market rents, net ​ (13,977) ​ (9,332) ​ (15,589) Impairment loss from REIT operations ​ 23,367 ​ 3,118 ​ 10,008 Book/tax on bad debt expense ​ ​ 35,075 ​ ​ 217 ​ ​ (749) Other book/tax differences, net ​ (5,390) ​ (21,575) ​ (12,969) REIT taxable income ​ 162,200 ​ 223,554 ​ 383,520 Dividends paid deduction (1) ​ (162,200) ​ (223,554) ​ (383,520) Dividends paid in excess of taxable income ​ $ — ​ $ — ​ $ — (1) For 2020, 2019 and 2018, the dividends paid deduction includes designated dividends of $114.8 million , $121.2 million and $105.7 million from 2021, 2020 and 2019, respectively.
Schedule Of Cash Dividends Distributed To Common Shareholders	For federal income tax purposes, the cash dividends distributed to common shareholders are characterized as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ 2020 2019 2018 Ordinary income ​ 79.9 % 65.4 % 42.2 % Capital gain distributions ​ 20.1 % 34.6 % 57.8 % Total ​ 100.0 % 100.0 % 100.0 %
Schedule Of Deferred Tax Assets And Liabilities	Our deferred tax assets and liabilities, including a valuation allowance, consisted of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ 2020 2019 Deferred tax assets: ​ ​ ​ ​ Impairment loss (1) ​ $ 4,638 ​ $ 4,692 Net operating loss carryforwards (2) ​ 3,216 ​ 3,206 Book-tax basis differential ​ 1,116 ​ 1,101 Other ​ 255 ​ 177 Total deferred tax assets ​ 9,225 ​ 9,176 Valuation allowance (3) ​ (5,551) ​ (5,749) Total deferred tax assets, net of allowance ​ $ 3,674 ​ $ 3,427 Deferred tax liabilities: ​ ​ Book-tax basis differential (1) ​ $ 1,547 ​ $ 1,547 Other ​ 118 ​ 155 Total deferred tax liabilities ​ $ 1,665 ​ $ 1,702 (1) Impairment losses and book-tax basis differential liabilities will not be recognized until the related properties are sold. Realization of impairment losses is dependent upon generating sufficient taxable income in the year the property is sold. (2) We have net operating loss carryforwards of $15.3 million that is an indefinite carryforward. (3) Management believes it is more likely than not that a portion of the deferred tax assets, which primarily consists of impairment losses and net operating losses, will not be realized and established a valuation allowance. However, the amount of the deferred tax asset considered realizable could be reduced if estimates of future taxable income are reduced.
Schedule of Income Tax Provision (Benefit)	We are subject to federal, state and local income taxes and have recorded an income tax provision (benefit) as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Net (loss) income before taxes of taxable REIT subsidiary $ (578) $ 32,602 $ 13,480 Federal (benefit) provision (1) ​ $ (121) ​ $ 6,846 ​ $ 2,831 Valuation allowance decrease ​ (198) ​ (7,038) ​ (2,800) Other ​ (54) ​ 569 ​ (46) Federal income tax (benefit) provision of taxable REIT subsidiary (2) ​ (373) ​ 377 ​ (15) State and local taxes, primarily Texas franchise taxes ​ 824 ​ 663 ​ 1,393 Total ​ $ 451 ​ $ 1,040 ​ $ 1,378 (1) At statutory rate of 21% for the year ended December 31, 2020, 2019 and 2018. (2) All periods from December 31, 2017 through December 31, 2020 are open for examination by the IRS.

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2020
Supplemental Cash Flow Elements [Abstract]
Schedule of Cash and Cash Equivalents	Cash, cash equivalents and restricted cash equivalents consists of the following (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 ​ 2018 Cash and cash equivalents ​ $ 35,418 $ 41,481 $ 65,865 Restricted deposits and escrows (see Note 1) ​ 12,338 ​ 13,810 ​ 10,272 Total ​ $ 47,756 ​ $ 55,291 ​ $ 76,137
Supplemental disclosure of non-cash transactions	Supplemental disclosure of non-cash transactions is summarized as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Accrued property construction costs ​ $ 7,158 $ 8,014 $ 11,135 Reduction of debt service guaranty liability ​ (3,730) ​ (3,520) ​ (3,245) Right-of-use assets exchanged for operating lease liabilities ​ 468 ​ 43,729 ​ — Increase in debt, net associated with the acquisition of real estate and land ​ ​ 87,339 ​ ​ — ​ ​ — Increase in other assets, net associated with the disposition of real estate and land ​ ​ 19,930 ​ ​ — ​ ​ — Increase in property associated with related party transaction (see Note 16) ​ ​ 130,663 ​ ​ — ​ ​ — Decrease in investment in real estate joint ventures and partnerships, net associated with related party transaction (see Note 16) ​ ​ (28,823) ​ ​ — ​ ​ —

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
	Dec. 31, 2020
Earnings Per Share [Abstract]
Components of Earnings Per Common Share - Basic and Diluted	Earnings per common share – basic and diluted components for the periods indicated are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Numerator: ​ ​ ​ ​ Net income ​ $ 118,959 ​ $ 322,575 ​ $ 345,343 Net income attributable to noncontrolling interests ​ (6,810) ​ (7,140) ​ (17,742) Net income attributable to common shareholders – basic ​ 112,149 ​ 315,435 ​ 327,601 Income attributable to operating partnership units ​ — ​ 2,112 ​ — Net income attributable to common shareholders – diluted ​ $ 112,149 ​ $ 317,547 ​ $ 327,601 Denominator: ​ ​ ​ Weighted average shares outstanding – basic ​ 127,291 ​ 127,842 ​ 127,651 Effect of dilutive securities: ​ ​ ​ Share options and awards ​ 878 ​ 842 ​ 790 Operating partnership units ​ — ​ 1,432 ​ — Weighted average shares outstanding – diluted ​ 128,169 ​ 130,116 ​ 128,441
Anti-Dilutive Securities Of Common Shares	Anti-dilutive securities of our common shares, which are excluded from the calculation of earnings per common share – diluted, are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Operating partnership units ​ 1,432 — 1,432

Share Options and Awards (Table

Share Options and Awards (Tables)	12 Months Ended
	Dec. 31, 2020
Share-based Payment Arrangement [Abstract]
Summary Of Option Activity	Following is a summary of the option activity for the three years ended December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ Shares Average ​ Under Exercise ​ ​ Option Price Outstanding, January 1, 2018 828,354 ​ $ 23.58 Forfeited or expired (196,159) ​ 32.22 Exercised (352,318) ​ 19.78 Outstanding, December 31, 2018 279,877 ​ 22.30 Forfeited or expired (1,136) ​ 11.85 Exercised (71,325) ​ 17.98 Outstanding, December 31, 2019 207,416 ​ 23.84 Forfeited or expired (23,222) ​ 22.68 Exercised (141,178) ​ 23.72 Outstanding, December 31, 2020 43,016 ​ $ 24.87
Share Options Outstanding And Exercisable	The following table summarizes information about share options outstanding and exercisable at December 31, 2020: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Outstanding ​ Exercisable ​ ​ Weighted ​ ​ ​ ​ Weighted ​ ​ ​ ​ ​ ​ ​ Average ​ Weighted ​ Aggregate ​ ​ ​ Average ​ Weighted ​ Aggregate ​ ​ ​ ​ Remaining ​ Average ​ Intrinsic ​ ​ ​ Remaining ​ Average ​ Intrinsic Exercise ​ ​ ​ Contractual ​ Exercise ​ Value ​ ​ ​ Contractual ​ Exercise ​ Value Price ​ Number ​ Life ​ Price ​ (000’s) ​ Number ​ Life ​ Price ​ (000’s) $ 24.87 43,016 0.2 years $ 24.87 — 43,016 0.2 years $ 24.87 —
Fair Value Of Market-Based Share Awards Assumptions	The fair value of the market-based share awards was estimated on the date of grant using a Monte Carlo valuation model based on the following assumptions: ​ ​ ​ ​ ​ ​ ​ ​ Year Ended ​ ​ ​ December 31, 2020 ​ ​ ​ Minimum ​ Maximum ​ Dividend yield 0.0 % 5.2 % Expected volatility (1) 19.0 % 20.0 % Expected life (in years) N/A 3 ​ Risk-free interest rate 0.0 % 1.6 % (1) Includes the volatility of the FTSE NAREIT U.S. Shopping Center Index and Weingarten Realty Investors.
Summary Of The Status Of Unvested Share Awards	A summary of the status of unvested share awards for the year ended December 31, 2020 is as follows: ​ ​ ​ ​ ​ ​ ​ ​ Weighted ​ ​ ​ ​ Average ​ ​ Unvested ​ Grant ​ ​ Share ​ Date Fair ​ ​ Awards ​ Value Outstanding, January 1, 2020 801,346 ​ $ 29.56 Granted: ​ Service-based awards 146,750 ​ 30.08 Market-based awards relative to FTSE NAREIT U.S. Shopping Center Index 66,953 ​ 31.18 Market-based awards relative to three-year absolute TSR 66,952 ​ 21.29 Trust manager awards 42,666 ​ 17.04 Vested (265,672) ​ 31.21 Forfeited (2,700) ​ 29.10 Outstanding, December 31, 2020 856,295 ​ $ 28.00

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	12 Months Ended
	Dec. 31, 2020
Retirement Benefits [Abstract]
Schedule Of Changes In The Benefit Obligation, The Plan Assets, The Funded Status Of Pension Plan And Components Of Net Periodic Benefit Costs	The following tables summarize changes in the benefit obligation, the plan assets and the funded status of our pension plan as well as the components of net periodic benefit costs, including key assumptions (in thousands). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Change in Projected Benefit Obligation: ​ ​ Benefit obligation at beginning of year ​ $ 64,253 ​ $ 55,759 Service cost ​ 1,317 ​ 1,090 Interest cost ​ 1,945 ​ 2,257 Actuarial loss ​ 7,253 ​ 7,889 Benefit payments ​ (2,600) ​ (2,742) Benefit obligation at end of year ​ $ 72,168 ​ $ 64,253 Change in Plan Assets: ​ ​ Fair value of plan assets at beginning of year ​ $ 59,416 ​ $ 50,802 Actual return on plan assets ​ 10,469 ​ 10,356 Employer contributions ​ 1,000 ​ 1,000 Benefit payments ​ (2,600) ​ (2,742) Fair value of plan assets at end of year ​ $ 68,285 ​ $ 59,416 Unfunded status at end of year (included in accounts payable and accrued expenses in 2020 and 2019) ​ $ (3,883) ​ $ (4,837) Accumulated benefit obligation ​ $ 72,053 ​ $ 64,159 Net loss recognized in accumulated other comprehensive loss ​ $ 14,774 ​ $ 14,897
Schedule Of Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Income (Loss)	The following is the required information for other changes in plan assets and benefit obligation recognized in other comprehensive income (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Net loss $ 898 $ 1,044 $ 1,143 Amortization of net loss ​ (1,021) ​ (1,197) ​ (1,228) Total recognized in other comprehensive income ​ $ (123) ​ $ (153) ​ $ (85) Total recognized in net periodic benefit cost and other comprehensive income ​ $ 46 ​ $ 880 ​ $ 767 ​
Schedule Of Accumulated Benefit Obligation In Excess Of Plan Assets	The following is the required information with an accumulated benefit obligation in excess of plan assets (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Projected benefit obligation $ 72,168 $ 64,253 Accumulated benefit obligation ​ 72,053 ​ 64,159 Fair value of plan assets ​ 68,285 ​ 59,416
Schedule Of Net Periodic Benefit Cost	The components of net periodic benefit cost are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Service cost ​ $ 1,317 $ 1,090 $ 1,295 Interest cost ​ 1,945 ​ 2,257 ​ 2,056 Expected return on plan assets ​ (4,114) ​ (3,511) ​ (3,727) Amortization of net loss ​ 1,021 ​ 1,197 ​ 1,228 Total ​ $ 169 ​ $ 1,033 ​ $ 852
Schedule of Weighted-Average Assumptions Used to Determine the Benefit Obligation	The weighted-average assumptions used to determine net periodic benefit cost are shown below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Discount rate 3.09 % 4.12 % 3.50 % Salary scale increases 3.50 % 3.50 % 3.50 % Long-term rate of return on assets 7.00 % 7.00 % 7.00 % Interest credit rate for cash balance plan ​ 4.50 % 4.50 % 4.50 % The weighted-average assumptions used to determine the benefit obligation are shown below: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Year Ended December 31, ​ ​ 2020 ​ 2019 ​ 2018 Discount rate 2.32 % 3.09 % 4.12 % Salary scale increases 3.50 % 3.50 % 3.50 % Interest credit rate for cash balance plan ​ 4.50 % 4.50 % 4.50 %
Schedule Of Expected Benefit Payments For The Next Ten Years	The expected benefit payments for the next 10 years for the Retirement Plan is as follows (in thousands): ​ ​ ​ ​ ​ 2021 $ 2,601 2022 ​ 2,769 2023 ​ 2,939 2024 ​ 3,061 2025 ​ 3,132 2026-2030 ​ 16,366
Schedule Of Allocation Of The Fair Value Of Plan Assets	At December 31, 2020, our investment asset allocation compared to our benchmarking allocation model for our plan assets was as follows: ​ ​ ​ ​ ​ ​ ​ Portfolio Benchmark Cash and Short-Term Investments 5 % 6 % U.S. Stocks 52 % 57 % International Stocks 15 % 10 % U.S. Bonds 23 % 23 % International Bonds 4 % 3 % Other 1 % 1 % Total 100 % 100 % The fair value of plan assets was determined based on publicly quoted market prices for identical assets, which are all classified as Level 1 observable inputs and were as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Cash and Short-Term Investments $ 12,334 $ 10,624 Large Company Funds 24,790 ​ 20,410 Mid Company Funds 3,595 ​ 4,107 Small Company Funds 3,538 ​ 4,071 International Funds 7,502 ​ 6,313 Fixed Income Funds 10,138 ​ 9,106 Growth Funds 6,388 ​ 4,785 Total $ 68,285 $ 59,416 The allocation of the fair value of plan assets was as follows: ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Cash and Short-Term Investments 18 % 18 % Large Company Funds 36 % 34 % Mid Company Funds 5 % 7 % Small Company Funds 5 % 7 % International Funds 11 % 11 % Fixed Income Funds 15 % 15 % Growth Funds 10 % 8 % Total 100 % 100 %

Related Parties (Tables)

Related Parties (Tables)	12 Months Ended
	Dec. 31, 2020
Related Party Transactions [Abstract]
Schedule of related party transactions	​ ​ ​ ​ ​ As of ​ December 11, 2020 Amounts recognized for assets and liabilities for Village Plaza at Bunker Hill ​ ​ Assets ​ ​ Property $ 140,596 Unamortized lease costs ​ 41,328 Other, net ​ 1,741 Liabilities ​ ​ Debt, net ​ (73,088) Other, net ​ (4,690) Total net assets $ 105,887 ​ ​ ​ Gain on Transaction (1) $ 32,453 __________________________ (1) Amount is included in Gain on Sale Property in our Consolidated Statement of Operations. The ​ ​ ​ ​ As of ​ December 11, 2020 Assets ​ ​ In place leases ​ 7.6 Above-market leases ​ 7.2 Liabilities ​ ​ Below-market leases ​ 8.0 Above-market assumed mortgage ​ 8.6

Variable Interest Entities (Tab

Variable Interest Entities (Tables)	12 Months Ended
	Dec. 31, 2020
Consolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Summary Of Variable Interest Entities	A summary of our consolidated VIEs is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Assets Held by VIEs (1) ​ $ 225,719 $ 228,954 Assets Held as Collateral for Debt (2) ​ 41,798 ​ 39,782 Maximum Risk of Loss (2) ​ 29,784 ​ 29,784 (1) The decrease between periods primarily represents net depreciation of property. (2) Represents the amount of debt and related assets held as collateral associated with the bottom dollar guaranty at one real estate joint venture.
Unconsolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Summary Of Variable Interest Entities	A summary of our unconsolidated VIEs is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, ​ ​ 2020 ​ 2019 Investment in Real Estate Joint Ventures and Partnerships, net (1) ​ $ 133,468 $ 128,361 Other Liabilities, net (2) ​ 7,624 ​ 7,735 Maximum Risk of Loss (3) ​ 34,000 ​ 34,000 (1) The carrying amount of the investment represents our contributions to a real estate joint venture, net of any distributions made and our portion of the equity in earnings of the real estate joint venture. The increase between the periods represents new development funding of a mixed-use project. (2) Includes the carrying amount of an investment where distributions have exceeded our contributions and our portion of the equity in earnings for a real estate joint venture. (3) The maximum risk of loss has been determined to be limited to our debt exposure for the real estate joint ventures. Additionally, our investment, including contributions and distributions, associated with a mixed-use project is disclosed in (1) above.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2020
Fair Value Disclosures [Abstract]
Assets And Liabilities Measured On Recurring Basis	Assets and liabilities measured at fair value on a recurring basis as of December 31, 2020 and 2019, aggregated by the level in the fair value hierarchy in which those measurements fall, are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Identical ​ Other ​ Significant ​ ​ ​ ​ ​ Assets ​ Observable ​ Unobservable ​ Fair Value at ​ ​ and Liabilities ​ Inputs ​ Inputs ​ December 31, ​ ​ (Level 1) ​ (Level 2) ​ (Level 3) ​ 2020 Assets: ​ ​ ​ ​ Cash equivalents, primarily money market funds (1) ​ $ 155 ​ ​ ​ $ 155 Restricted cash, primarily money market funds (1) ​ 10,144 ​ ​ ​ 10,144 Investments, mutual funds held in a grantor trust (1) ​ 43,412 ​ ​ ​ 43,412 Total ​ $ 53,711 ​ $ — ​ $ — ​ $ 53,711 Liabilities: ​ ​ ​ ​ Deferred compensation plan obligations ​ $ 43,412 ​ ​ ​ $ 43,412 Total ​ $ 43,412 ​ $ — ​ $ — ​ $ 43,412 (1) For the year ended December 31, 2020, a net gain of $5.1 million was included in Interest and Other Income, net, of which $3.7 million represented an unrealized gain. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices ​ ​ ​ ​ ​ ​ ​ ​ in Active ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Markets for ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Identical ​ Other ​ Significant ​ ​ ​ ​ ​ Assets ​ Observable ​ Unobservable ​ Fair Value at ​ ​ and Liabilities ​ Inputs ​ Inputs ​ December 31, ​ ​ (Level 1) ​ (Level 2) ​ (Level 3) ​ 2019 Assets: ​ ​ ​ ​ Cash equivalents, primarily money market funds (1) ​ $ 28,330 ​ ​ ​ $ 28,330 Restricted cash, primarily money market funds (1) ​ 9,916 ​ ​ ​ 9,916 Investments, mutual funds held in a grantor trust (1) ​ 38,378 ​ ​ ​ 38,378 Total ​ $ 76,624 ​ $ — ​ $ — ​ $ 76,624 Liabilities: ​ ​ ​ ​ Deferred compensation plan obligations ​ $ 38,378 ​ ​ ​ $ 38,378 Total ​ $ 38,378 ​ $ — ​ $ — ​ $ 38,378 (1) For the year ended December 31, 2019, a net gain of $9.4 million was included in Interest and Other Income, net, of which $6.7 million represented an unrealized gain.
Assets Measured on Nonrecurring Basis	Assets measured at fair value on a nonrecurring basis at December 31, 2020 aggregated by the level in the fair value hierarchy in which those measurements fall, are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices in ​ ​ ​ ​ ​ ​ Active Markets for ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ Identical ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Assets ​ Observable ​ Unobservable ​ ​ ​ ​ ​ ​ ​ ​ and Liabilities ​ Inputs ​ Inputs ​ ​ ​ ​ Total Gains ​ ​ (Level 1) ​ (Level 2) ​ (Level 3) ​ Fair Value ​ (Losses) (1) Property (2) ​ ​ $ 47,746 ​ $ — ​ $ 47,746 ​ $ (12,686) Total ​ $ — ​ $ 47,746 ​ $ — ​ $ 47,746 ​ $ (12,686) ( 1) Total gains (losses) presented in this table relate to assets that were held by us at December 31, 2020; however, we have subsequently sold one of these centers. (2) In accordance with our policy of evaluating and recording impairments on the disposal of long-lived assets, property with a carrying amount $60.4 million was written down to a fair value of $47.7 million, resulting in a loss of $12.7 million, which was included in earnings for the fourth quarter of 2020. Management’s estimate of fair value of these properties were determined using bona fide purchase offers for the Level 2 inputs. Assets measured at fair value on a nonrecurring basis at December 31, 2019 aggregated by the level in the fair value hierarchy in which those measurements fall, are as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Quoted Prices in ​ ​ ​ ​ ​ ​ Active Markets for ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ ​ Identical ​ Other ​ Significant ​ ​ ​ ​ ​ ​ ​ ​ Assets ​ Observable ​ Unobservable ​ ​ ​ ​ ​ ​ ​ ​ and Liabilities ​ Inputs ​ Inputs ​ ​ ​ ​ Total Gains ​ ​ (Level 1) ​ (Level 2) ​ (Level 3) ​ Fair Value ​ (Losses) (1) Investment in real estate joint ventures and partnerships (2) ​ ​ $ 1,830 ​ $ 24,154 ​ $ 25,984 ​ $ (3,070) Total ​ $ — ​ $ 1,830 ​ $ 24,154 ​ $ 25,984 ​ $ (3,070) (1) Total gains (losses) presented in this table relate to assets that were held by us at December 31, 2019. (2) In accordance with our policy of evaluating and recording impairments on the disposal of investments in real estate joint ventures and partnerships, investments with a carrying amount of $29.1 million were written down to a fair value of $26.0 million, resulting in a loss of $3.1 million, which was included in earnings for the fourth quarter of 2019. Management’s estimate of fair value of these investments were determined using a bona fide purchase offer for the Level 2 inputs, and see the quantitative information about the significant unobservable inputs used for our Level 3 fair value measurements in the table below.
Schedule Of Fair Value Disclosures	Schedule of our fair value disclosures is as follows (in thousands): ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ December 31, 2020 ​ December 31, 2019 ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ ​ ​ Fair Value ​ ​ ​ ​ ​ ​ ​ ​ Using ​ Fair Value ​ ​ ​ ​ Using ​ Fair Value ​ ​ ​ ​ ​ Significant ​ Using ​ ​ ​ ​ Significant ​ Using ​ ​ ​ ​ ​ Other ​ Significant ​ ​ ​ ​ Other ​ Significant ​ ​ ​ ​ ​ Observable ​ Unobservable ​ ​ ​ ​ Observable ​ Unobservable ​ ​ Carrying ​ Inputs ​ Inputs ​ Carrying ​ Inputs ​ Inputs ​ ​ Value ​ (Level 2) ​ (Level 3) Value ​ (Level 2) ​ (Level 3) Other Assets: ​ ​ ​ ​ ​ ​ ​ Tax increment revenue bonds (1) ​ $ 14,762 ​ ​ $ 19,000 ​ $ 17,277 ​ ​ $ 25,000 Debt: ​ ​ ​ ​ ​ ​ ​ ​ Fixed-rate debt ​ 1,798,419 ​ ​ ​ 1,905,306 ​ 1,714,890 ​ ​ 1,787,663 Variable-rate debt ​ 40,000 ​ ​ 40,000 ​ 17,448 ​ ​ 17,426 (1) At December 31, 2019, prior to the adoption of ASC 326, the amortized cost basis was net of a previously recognized other-than-temporary impairment on our tax increment revenue bonds of $31.0 million.
Schedule of the significant unobservable inputs used for our nonrecurring Level 3 fair value measurements	The quantitative information about the significant unobservable inputs used for our nonrecurring Level 3 fair value measurements as of December 31, 2019 reported in the above table, is as follows: ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ Fair Value at ​ ​ ​ ​ December 31, ​ ​ ​ ​ ​ Range ​ ​ 2019 ​ ​ ​ ​ ​ Minimum ​ Maximum Description (in thousands) Valuation Technique Unobservable Inputs 2019 2019 ​ Investment in real estate joint ventures and partnerships ​ $ 24,154 Discounted cash flows Discount rate 7.3 % 7.5 % ​ ​ ​ ​ ​ Capitalization rate ​ 5.8 % 8.0 % ​ ​ ​ ​ ​ Noncontrolling interest discount ​ ​ ​ 15.0 %

Summary Of Significant Accoun_4

Summary Of Significant Accounting Policies (Narrative) (Details) $ in Thousands, ft² in Millions	12 Months Ended
	Dec. 31, 2020USD ($)ft²planitemcustomersegment	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Significant Accounting Policies [Line Items]
Square footage of operating properties (in square feet) | ft²	30.2
Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net	$ 81,016	$ 83,639
Allowance for credit loss	$ 0
Real estate asset, estimated useful life	40 years
Allowance for doubtful accounts			$ 6,900
Charge to bad debt			2,400
Deductions from allowance for doubtful accounts			3,000
Number of reportable segments | segment	1
Other	$ 11,578	$ 14,179	$ 13,311
Geographic Distribution, Foreign [Member]
Significant Accounting Policies [Line Items]
Number of foreign operations | item	0
Interest Rate Contract [Member] | Cash Flow Hedging [Member]
Significant Accounting Policies [Line Items]
Cash flow hedge gain (loss) to be amortized within 12 months	$ 900
Supplemental Employee Retirement Plan [Member]
Significant Accounting Policies [Line Items]
Number of retirement plans | plan	2
Supplemental Employee Retirement Plan [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Defined contribution plan, vesting period	5 years
Supplemental Employee Retirement Plan [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Defined contribution plan, vesting period	10 years
Supplemental Retirement Plan, Defined Contribution Plan, New Balance Annual Additions [Member]
Significant Accounting Policies [Line Items]
Defined contribution plan, interest credit percentage	4.50%
Supplemental Retirement Plan, Defined Contribution Plan, New Balance Annual Additions [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Defined contribution plan, service credit percentage	3.00%
Supplemental Retirement Plan, Defined Contribution Plan, New Balance Annual Additions [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Defined contribution plan, service credit percentage	5.00%
Supplemental Retirement Plan, Defined Contribution Plan, Old Balance Annual Additions [Member]
Significant Accounting Policies [Line Items]
Defined contribution plan, interest credit percentage	7.50%
Savings and Investment Plan, Defined Contribution Plan [Member]
Significant Accounting Policies [Line Items]
Defined contribution plan, minimum annual employee contributions per employee, percent	1.00%
Defined contribution plan, vesting period	5 years
Defined contribution plan, employer matched rate of employee contributions, percentage	50.00%
Defined contribution plan, employer matching contribution, percent	6.00%
Retirement Plan [Member]
Significant Accounting Policies [Line Items]
Defined benefit plan, interest credit rate	4.50%
Defined benefit plan, vesting period (years)	3 years
Retirement Plan [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Defined benefit plan, service credit percentage	3.00%
Retirement Plan [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Defined benefit plan, service credit percentage	5.00%
Share Options [Member]
Significant Accounting Policies [Line Items]
Maximum term of option award (years)	10 years
Share-based Payment Arrangement, Employee [Member]
Significant Accounting Policies [Line Items]
Vesting period (years) for share options and awards	3 years
Share-based Payment Arrangement, Employee [Member] | Service-Based Share Awards [Member]
Significant Accounting Policies [Line Items]
Vesting period (years) for share options and awards	3 years
Share-based Payment Arrangement, Employee [Member] | Market-Based Awards Relative To FTSE NAREIT U.S. Shopping Center Index [Member]
Significant Accounting Policies [Line Items]
Percentage allocation of market based awards	50.00%
Share-based Payment Arrangement, Employee [Member] | Market-Based Awards Relative To Three-Year Absolute Total Shareholder Return [Member]
Significant Accounting Policies [Line Items]
Percentage allocation of market based awards	50.00%
Market based awards, hurdle comparison	6.00%
Share-based Payment Arrangement, Employee [Member] | Market Based Awards [Member]
Significant Accounting Policies [Line Items]
Vesting period (years) for share options and awards	3 years
Building [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Real estate asset, estimated useful life	18 years
Building [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Real estate asset, estimated useful life	40 years
Parking Lot Surfacing And Equipment [Member] | Minimum [Member]
Significant Accounting Policies [Line Items]
Real estate asset, estimated useful life	10 years
Parking Lot Surfacing And Equipment [Member] | Maximum [Member]
Significant Accounting Policies [Line Items]
Real estate asset, estimated useful life	20 years
Tenant Base [Member] | Revenue Benchmark [Member]
Significant Accounting Policies [Line Items]
Number of customers | customer	2
Concentrations of risk	2.60%
Single Purpose Entities [Member]
Significant Accounting Policies [Line Items]
Single purpose entity, ownership percentage	100.00%
Ninety-Day London Interbank Offered Rate (LIBOR) [Member] | Supplemental Retirement Plan, Defined Contribution Plan, Old Balance Annual Additions [Member]
Significant Accounting Policies [Line Items]
Defined contribution plan, basis spread on variable rate	0.50%
HOUSTON | Geographic Concentration Risk [Member] | Revenue Benchmark [Member]
Significant Accounting Policies [Line Items]
Concentrations of risk	20.60%
OTHER PARTS OF TEXAS | Geographic Concentration Risk [Member] | Revenue Benchmark [Member]
Significant Accounting Policies [Line Items]
Concentrations of risk	9.80%
FLORIDA | Geographic Concentration Risk [Member] | Revenue Benchmark [Member]
Significant Accounting Policies [Line Items]
Concentrations of risk	20.40%
CALIFORNIA | Geographic Concentration Risk [Member] | Revenue Benchmark [Member]
Significant Accounting Policies [Line Items]
Concentrations of risk	16.40%
COVID-19 [Member]
Significant Accounting Policies [Line Items]
Accrued Rent, Accrued Contract Receivables and Accounts Receivable, net	$ 9,600
Rent forgiveness	3,200
Adjustment to revenue related to potentially uncollectible revenues and disputed amounts	36,100
Straight Line Rent Receivables [Member]
Significant Accounting Policies [Line Items]
Adjustment to revenue related to potentially uncollectible revenues and disputed amounts	$ 15,000

Summary of Significant Accoun_5

Summary of Significant Accounting Policies (Schedule Of Restricted Deposits and Escrows) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Restricted deposits	$ 12,122	$ 12,793
Escrows	216	1,017
Total	$ 12,338	$ 13,810	$ 10,272

Summary of Significant Accoun_6

Summary of Significant Accounting Policies (Schedule Of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ (1,876,160)	$ (1,750,699)	$ (1,809,842)
Cumulative effect adjustment of new accounting standards	1,876,160	1,750,699	1,750,699
Net other comprehensive loss (income)			2,838
Net other comprehensive loss (income)	767	734
Ending Balance	(1,800,502)	(1,876,160)	(1,750,699)
Gain on Investments [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance			(1,541)
Cumulative effect adjustment of new accounting standards			1,541
Gain on Cash Flow Hedges [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(3,614)	(4,501)	(7,424)
Cumulative effect adjustment of new accounting standards	2,724	3,614	4,501
Change excluding amounts reclassified from accumulated other comprehensive loss			(1,379)
Amounts reclassified from accumulated other comprehensive loss	890	887	4,302
Net other comprehensive loss (income)	890	887	2,923
Ending Balance	(2,724)	(3,614)	(4,501)
Defined Benefit Pension Plan [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	14,897	15,050	15,135
Cumulative effect adjustment of new accounting standards	(14,774)	(14,897)	(15,050)
Change excluding amounts reclassified from accumulated other comprehensive loss	898	1,044	1,143
Amounts reclassified from accumulated other comprehensive loss	(1,021)	(1,197)	(1,228)
Net other comprehensive loss (income)	(123)	(153)	(85)
Ending Balance	14,774	14,897	15,050
Accumulated Other Comprehensive Loss [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	11,283	10,549	6,170
Cumulative effect adjustment of new accounting standards	(12,050)	(11,283)	(10,549)
Change excluding amounts reclassified from accumulated other comprehensive loss	898	1,044	(236)
Amounts reclassified from accumulated other comprehensive loss	(131)	(310)	3,074
Net other comprehensive loss (income)			2,838
Net other comprehensive loss (income)	767	734
Ending Balance	12,050	11,283	10,549
Cumulative Effect, Period of Adoption, Adjustment [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		(3,956)
Cumulative effect adjustment of new accounting standards	(711)	3,956	3,956
Ending Balance	$ 711		(3,956)
Cumulative Effect, Period of Adoption, Adjustment [Member] | Gain on Investments [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		1,541
Cumulative effect adjustment of new accounting standards		(1,541)	(1,541)
Ending Balance			1,541
Cumulative Effect, Period of Adoption, Adjustment [Member] | Accumulated Other Comprehensive Loss [Member]
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		1,541
Cumulative effect adjustment of new accounting standards		$ (1,541)	(1,541)
Ending Balance			$ 1,541

Newly Issued Accounting Prono_2

Newly Issued Accounting Pronouncements (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)OfficeCenter	Dec. 31, 2019USD ($)CenterOffice	Jan. 01, 2020USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of properties with ground lease agreements | Center	10	12
Number of administrative office leases | Office	4	4
Operating lease, right-of-use asset	$ 42,800	$ 43,800
Other, net	205,074	188,004
Accumulated Distributions in Excess of Net Income	$ 128,813	$ 74,293
Accounting Standards Update 2016-13 [Member] | Cumulative Effect, Period of Adoption, Adjustment [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Other, net			$ (700)
Accumulated Distributions in Excess of Net Income			$ 700

Property (Narrative) (Details)

Property (Narrative) (Details) $ in Thousands	2 Months Ended	12 Months Ended
	Feb. 26, 2021Center	Dec. 31, 2020USD ($)property	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 11, 2020
Property, Plant and Equipment [Line Items]
Number of centers sold	1	7
Proceeds from sale and disposition of property		$ 194,200
Gain on sale of property		$ 65,402	$ 189,914	$ 207,865
Number of real estate properties | property		1
Acquisition of real estate property		$ 166,600
Investment in new development		$ 79,400
Unconsolidated joint venture
Property, Plant and Equipment [Line Items]
Ownership percentage		57.75%			57.75%
Village Plaza at Bunker Hill | Partnership interest
Property, Plant and Equipment [Line Items]
Ownership of joint venture percentage		42.25%			42.25%

Property (Schedule Of Property)

Property (Schedule Of Property) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Real Estate [Abstract]
Land	$ 948,622	$ 911,521
Land held for development	39,936	40,667
Land under development	19,830	53,076
Buildings and improvements	3,082,509	2,898,867
Construction in-progress	155,437	241,118
Total	$ 4,246,334	$ 4,145,249

Investment In Real Estate Joi_3

Investment In Real Estate Joint Ventures And Partnerships (Narrative) (Details) $ in Thousands	1 Months Ended		2 Months Ended	12 Months Ended
	Dec. 31, 2020USD ($)	Jul. 31, 2019USD ($)	Feb. 26, 2021Center	Dec. 31, 2020USD ($)propertyCenter	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Schedule of Equity Method Investments [Line Items]
Net basis differentials for equity method investments	$ 10,700			$ 10,700	$ 9,000
Joint venture fee income				$ 5,300	6,500	$ 6,100
Number of centers sold			1	7
Gain on sale of property				$ 65,402	189,914	207,865
Acquisition of real estate property				166,600
Real estate joint ventures and partnerships - Investments				8,671	$ 74,602	$ 38,096
Proceeds from sale and disposition of property				194,200
Gross purchase price to acquire center				$ 166,600
Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint ventures	20.00%			20.00%	20.00%
Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint ventures	90.00%			90.00%	90.00%
COVID-19 [Member]
Schedule of Equity Method Investments [Line Items]
Adjustment to revenue related to potentially uncollectible revenues and disputed amounts				$ 36,100
Entity's share of the adjustment to revenue related to potentially uncollectible revenues and disputed amounts				2,500
Straight Line Rent Receivables [Member]
Schedule of Equity Method Investments [Line Items]
Adjustment to revenue related to potentially uncollectible revenues and disputed amounts				15,000
Entity's share of the adjustment to revenue related to potentially uncollectible revenues and disputed amounts				$ 900
Disposal Group, Multiple Centers [Member]
Schedule of Equity Method Investments [Line Items]
Number of centers sold | Center				2
Number of centers sold the Entity had interest in | Center				2
Proceeds From divestitures				$ 148,300
Gain on sale of property				$ 23,500
Disposal Group, Multiple Centers [Member] | Minimum [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint ventures	20.00%			20.00%
Disposal Group, Multiple Centers [Member] | Maximum [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint ventures	50.00%			50.00%
Investment Mixed Use New Development [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint ventures	90.00%			90.00%
Real estate joint ventures and partnerships - Investments				$ 8,700
Unconsolidated joint venture
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint ventures		51.00%
Gain on sale of property					$ 1,100
Acquisition of real estate property		$ 52,600
Proceeds from sale and disposition of property					$ 2,300
Gross purchase price to acquire center		$ 52,600
Unconsolidated joint venture | COVID-19 [Member]
Schedule of Equity Method Investments [Line Items]
Adjustment to revenue related to potentially uncollectible revenues and disputed amounts				6,900
Unconsolidated joint venture | Straight Line Rent Receivables [Member]
Schedule of Equity Method Investments [Line Items]
Adjustment to revenue related to potentially uncollectible revenues and disputed amounts				$ 3,100
Unconsolidated joint venture | Investment Mixed Use New Development [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage in joint ventures					90.00%
Real estate joint ventures and partnerships - Investments					$ 47,600
Unconsolidated joint venture | Partnership interest
Schedule of Equity Method Investments [Line Items]
Ownership of joint venture percentage	42.25%			42.25%
Acquisition of real estate property	$ 115,200
Gross purchase price to acquire center	$ 115,200

Investment In Real Estate Joi_4

Investment In Real Estate Joint Ventures And Partnerships (Schedule Of Combined Condensed Balance Sheets) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
ASSETS
Property	$ 4,246,334	$ 4,145,249
Accumulated Depreciation	(1,161,970)	(1,110,675)
Real Estate Investment Property, Net	3,084,364	3,034,574
Other, net	205,074	188,004
Total Assets	3,961,400	3,937,934
LIABILITIES AND EQUITY
Debt, net	1,838,419	1,732,338
Other liabilities, net	217,489	217,770
Total Liabilities	2,160,898	2,061,774
Equity	1,800,502	1,876,160	$ 1,750,699	$ 1,809,842
Total Liabilities and Equity	3,961,400	3,937,934
Unconsolidated joint venture
ASSETS
Property	1,093,504	1,378,328
Accumulated Depreciation	(275,802)	(331,856)
Real Estate Investment Property, Net	817,702	1,046,472
Other, net	81,285	108,366
Total Assets	898,987	1,154,838
LIABILITIES AND EQUITY
Debt, net	192,674	264,782
Amounts payable to Weingarten Realty Investors and Affiliates	9,836	11,972
Other liabilities, net	15,340	25,498
Total Liabilities	217,850	302,252
Equity	681,137	852,586
Total Liabilities and Equity	$ 898,987	$ 1,154,838

Investment In Real Estate Joi_5

Investment In Real Estate Joint Ventures And Partnerships (Schedule Of Combined Condensed Statements Of Operations) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Revenues, net	$ 433,917	$ 486,625	$ 531,147
Expenses
Depreciation and amortization	149,930	135,674	161,838
Interest, net	61,148	57,601	63,348
Operating	91,075	94,620	90,554
Real estate taxes, net	62,564	60,813	69,268
General and administrative	37,388	35,914	25,040
Provision for income taxes	451	1,040	1,378
Gain on dispositions	65,402	189,914	207,865
Net Income	118,959	322,575	345,343
Unconsolidated joint venture
Schedule of Equity Method Investments [Line Items]
Revenues, net	124,409	135,258	133,975
Expenses
Depreciation and amortization	35,971	32,126	32,005
Interest, net	9,175	9,664	11,905
Operating	24,775	25,046	24,112
Real estate taxes, net	16,733	18,070	18,839
General and administrative	601	551	696
Provision for income taxes	121	133	138
Total	87,376	85,590	87,695
Gain on dispositions	47,002	2,009	9,495
Net Income	$ 84,035	$ 51,677	$ 55,775

Identified Intangible Assets _3

Identified Intangible Assets And Liabilities (Identifiable Intangible Assets And Liabilities Associated With Acquisition Of Property) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets, net	$ 143,636	$ 114,974
Identified intangible liabilities, net	63,494	64,373
Other Liabilities [Member]
Finite-Lived Intangible Assets [Line Items]
Below-market leases (included in Other Liabilities, net)	92,855	95,240
Below-market leases - Accumulated Amortization	(34,647)	(32,326)
Above Market Leases [Member] | Other Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Above-market leases (included in Other Assets, net)	23,877	23,830
Identified intangible assets/liabilities, accumulated (amortization) accretion	(12,551)	(12,145)
Above-Market Assumed Mortgages [Member] | Debt, Net [Member]
Finite-Lived Intangible Assets [Line Items]
Above-market assumed mortgages (included in Debt, net)	7,694	3,446
Above-market assumed mortgages - Accumulated Amortization	(2,408)	(1,987)
Leases, Acquired-in-Place [Member] | Unamortized Lease Costs, Net [Member]
Finite-Lived Intangible Assets [Line Items]
Identified intangible assets/liabilities, accumulated (amortization) accretion	(102,772)	(92,918)
In place leases (included in Unamortized Lease Costs, net)	$ 235,082	$ 196,207

Identified Intangible Assets _4

Identified Intangible Assets And Liabilities (Schedule Of Future Amortization) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Rental Revenues [Member] | Above-Market and Below-Market Leases [Member]
Finite-Lived Intangible Assets and Liabilities, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2021	$ 4,691
2022	4,357
2023	4,172
2024	4,032
2025	3,234
Net amortization	7,800	$ 4,600	$ 12,800
Depreciation and Amortization [Member] | Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2021	19,580
2022	17,103
2023	15,549
2024	13,491
2025	12,204
Amortization	19,400	14,900	29,800
Interest Expense [Member] | Above-Market Assumed Mortgages [Member]
Finite-Lived Intangible Liabilities, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2021	789
2022	643
2023	638
2024	638
2025	638
Amortization	$ 400	$ 300	$ 700

Identified Intangible Assets _5

Identified Intangible Assets And Liabilities (Identified Intangible Assets and Liabilities and the Remaining Weighted-Average Amortization Period associated with our Asset Acquisitions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Below-market leases	$ 5,205	$ 13,762
Leases, Acquired-in-Place [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 48,562	$ 30,253
Acquired finite-lived intangible assets, weighted average useful life	7 years 9 months 18 days	11 years
Above Market Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets acquired	$ 1,901	$ 1,323
Acquired finite-lived intangible assets, weighted average useful life	7 years 1 month 6 days	7 years 2 months 12 days
Above-Market Assumed Mortgages [Member]
Finite-Lived Intangible Assets [Line Items]
Above-market assumed mortgages (included in Debt, net)	$ 4,249
Acquired finite-lived intangible liabilities, weighted average useful life	8 years 3 months 18 days
Below Market Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Acquired finite-lived intangible liabilities, weighted average useful life	7 years 9 months 18 days	13 years 6 months

Debt (Narrative) (Details)

Debt (Narrative) (Details) $ in Thousands	Dec. 11, 2019USD ($)item	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Jan. 03, 2020USD ($)
Debt Instrument [Line Items]
Debt service guaranty liability		$ 53,650	$ 57,380
Principal payments of debt		22,977	55,556	$ 257,028
Debt instruments collateral value		600,000	500,000
Outstanding revolving credit facility		40,000
Finance lease obligation		21,696	$ 21,804
Net premium/(discount) on debt		(3,100)
Deferred finance costs, net		(4,500)
Non-cash debt		5,300
Unsecured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity under credit facility	$ 500,000
Number of credit facility 6-month extensions | item	2
Line of credit facility, extension period	6 months
Bids amount (up to)		250,000
Maximum increase in credit facility amount (up to)		$ 850,000
Commitment fee percentage		0.15%	0.15%
Outstanding revolving credit facility		$ 40,000
Debt Service Guaranty [Member]
Debt Instrument [Line Items]
Debt coverage ratio		1.4
Mortgages [Member]
Debt Instrument [Line Items]
Principal payments of debt			$ 50,000
Debt stated interest rate			7.00%
Secured Debt [Member]
Debt Instrument [Line Items]
Deferred finance costs, net		$ (800)
Non-cash debt		$ 5,300
Short-Term Unsecured Facility [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity under credit facility					$ 10,000
Fixed interest rate loan period (in days)		30 days	30 days
Commitment fee percentage		0.10%	0.10%
Unused capacity, commitment fee percentage		0.05%	0.05%
London Interbank Offered Rate (LIBOR) [Member] | Unsecured Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		0.825%	0.825%
Thirty-Day LIBOR [Member] | Short-Term Unsecured Facility [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Basis spread on variable rate		1.25%	1.25%
Financial Standby Letter of Credit [Member]
Debt Instrument [Line Items]
Securities pledged as collateral		$ 6,000	$ 5,300
Guarantor obligations, maximum exposure, undiscounted		$ 6,000	$ 5,000

Debt (Schedule Of Debt) (Detail

Debt (Schedule Of Debt) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt payable, net to 2038	$ 1,723,073	$ 1,653,154
Unsecured notes payable under credit facilities	40,000
Debt service guaranty liability	53,650	57,380
Finance lease obligation	21,696	21,804
Total	$ 1,838,419	$ 1,732,338
Debt Payable Due Date Two Thousand Thirty Eight [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt stated interest rate	3.30%	3.30%
Debt Payable Due Date Two Thousand Thirty Eight [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt stated interest rate	7.00%	7.00%
Debt Payable Due Date Two Thousand Thirty Eight [Member] | Weighted Average [Member]
Debt Instrument [Line Items]
Debt stated interest rate	3.90%	3.90%

Debt (Grouping Of Debt Between

Debt (Grouping Of Debt Between Fixed And Variable As Well As Secured And Unsecured) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total	$ 1,838,419	$ 1,732,338
As To Interest Rate [Member]
Debt Instrument [Line Items]
Fixed-rate debt	1,798,419	1,714,890
Variable-rate debt	40,000	17,448
Total	1,838,419	1,732,338
As To Collateralization [Member]
Debt Instrument [Line Items]
Unsecured debt	1,488,909	1,450,762
Secured debt	349,510	281,576
Total	$ 1,838,419	$ 1,732,338

Debt (Schedule Of Credit Facili

Debt (Schedule Of Credit Facilities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Line of Credit Facility [Line Items]
Balance outstanding	$ 40,000
Maximum balance outstanding during the period	497,000	$ 5,000
Weighted average balance	$ 74,311	$ 123
Year-to-date weighted average interest rate (excluding facility fee)	1.00%	3.30%
Unsecured Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Balance outstanding	$ 40,000
Available balance	$ 458,068	$ 497,946
Variable interest rate (excluding facility fee)	0.94%
Letters of Credit [Member]
Line of Credit Facility [Line Items]
Letters of credit outstanding under facility	$ 1,932	$ 2,054

Debt (Principal Payments Of Deb

Debt (Principal Payments Of Debt) (Details) $ in Thousands	Dec. 31, 2020USD ($)
Debt Disclosure [Abstract]
2021	$ 18,795
2022	308,298
2023	348,207
2024	252,561
2025	294,232
2026	277,733
2027	53,604
2028	92,159
2029	70,304
2030	950
Thereafter	8,569
Total	$ 1,725,412

Lease Obligations - Narrative (

Lease Obligations - Narrative (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)OfficeCenter	Dec. 31, 2019USD ($)CenterOffice	Dec. 31, 2018USD ($)
Leases
Number of properties with ground lease agreements | Center	10	12
Number of administrative office leases | Office	4	4
Operating lease, right-of-use asset	$ 42.8	$ 43.8
Finance lease assets, number of units, centers | Center	2
Finance lease, right-of-use asset	$ 8.7	$ 8.9
Operating leases, rental expense			$ 3.1
Future minimum revenues under subleases			$ 22.8
Minimum [Member]
Leases
Lessee, operating lease, renewal term	5 years
Maximum [Member]
Leases
Lessee, operating lease, renewal term	20 years
Lease term	10 years
Lease renewal term	5 years

Lease Obligations - Schedule of

Lease Obligations - Schedule of Lease Costs including Weighted Average Lease Terms and Weighted-average Discount Rates (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Finance cost:
Interest on lease liability (included in Interest expense, net)	$ 1,635	$ 1,642
Short-term lease cost		44
Variable lease cost	244	309
Sublease income (included in Rentals, net)	(26,539)	(27,400)
Total lease cost	$ (21,131)	$ (21,885)
Operating lease, weighted average remaining lease term (in years)	40 years 8 months 12 days	41 years 6 months
Financelease, weighted average remaining lease term (in years)	3 years	4 years
Operating lease, weighted average discount rate, percent	4.90%	4.90%
Finance lease, weighted average discount rate, percent	7.50%	7.50%
Operating expense [Member]
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 2,977	$ 3,044
General and administrative expense [Member]
Lessee, Lease, Description [Line Items]
Operating lease cost	370	302
Depreciation and Amortization [Member]
Finance cost:
Amortization of right-of-use asset (included in Depreciation and Amortization)	$ 182	$ 174

Lease Obligations - Reconciliat

Lease Obligations - Reconciliation of Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2021	$ 2,717
2022	2,698
2023	2,582
2024	2,222
2025	2,082
Thereafter	95,105
Total	$ 107,406
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other Liabilities	Other Liabilities
Lease liabilities	$ 42,888
Undiscounted excess amount	64,518
Finance Lease, Liability, Payment, Due [Abstract]
2021	1,751
2022	1,759
2023	23,037
Total	26,547
Finance lease obligation	21,696	$ 21,804
Undiscounted excess amount	$ 4,851

Lease Obligations - Future Subl

Lease Obligations - Future Sublease Payments for Ground Lease Rentals (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
2021	$ 329,001
2022	283,036
2023	239,768
2024	192,197
2025	146,270
Thereafter	448,593
Total	1,638,865
Lessee, Finance Leases, Sublease Rentals [Member]
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
Finance lease	10,286
Lessee, Operating Leases, Sublease Rentals [Member]
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
2021	23,110
2022	21,351
2023	19,813
2024	15,668
2025	11,273
Thereafter	36,826
Total	$ 128,041

Common Shares Of Beneficial I_2

Common Shares Of Beneficial Interest (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	2 Months Ended	3 Months Ended												12 Months Ended
	Feb. 26, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Class of Stock [Line Items]
Value of shares approved to be repurchased		$ 200												$ 200
Stock Repurchased During Period, Shares														1.7	0
Average price of share repurchased (in dollars per share)														$ 19.09
Common shares of beneficial interest, dividend per share (in dollars per share)														1.30	$ 1.58	$ 2.98
Common dividend paid per share (in dollars per share)														1.30	1.58	2.98
Common shares of beneficial interest; par value		$ 0.03				$ 0.03								$ 0.03	0.03
Stock repurchase program, remaining authorized repurchase amount	$ 149.4	$ 149.4												$ 149.4
Special Dividend [Member]
Class of Stock [Line Items]
Common dividend paid per share (in dollars per share)														$ 0.36	$ 0	$ 1.40
Quarterly Rate Per Share [Member]
Class of Stock [Line Items]
Common shares of beneficial interest, dividend per share (in dollars per share)		$ 0.18	$ 0.18	$ 0.18	$ 0.395	$ 0.395	$ 0.395	$ 0.395	$ 0.395	$ 0.395	$ 0.395	$ 0.395	$ 0.395
Quarterly Rate Per Share [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Common shares of beneficial interest, dividend per share (in dollars per share)	$ 0.30

Leasing Operations (Details)

Leasing Operations (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)
COVID-19 [Member]
Lessor, Lease, Description [Line Items]
Rent forgiveness	$ 3.2
Maximum [Member]
Lessor, Lease, Description [Line Items]
Lease term	10 years
Lease renewal term	5 years

Leasing Operations Future undis

Leasing Operations Future undiscounted, lease payments for non-cancelable tenant leases (Details) $ in Thousands	Dec. 31, 2020USD ($)
Leases [Abstract]
2021	$ 329,001
2022	283,036
2023	239,768
2024	192,197
2025	146,270
Thereafter	448,593
Total	$ 1,638,865

Leasing Operations Variable lea

Leasing Operations Variable lease payments recognized in Rentals, net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Variable lease payments	$ 100,093	$ 109,685

Leasing Operations (Schedule Of

Leasing Operations (Schedule Of Contingent Rental Income) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
Leases [Abstract]
Contingent rentals	$ 118,703

Impairment (Schedule Of Impairm

Impairment (Schedule Of Impairment Charges) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Asset Impairment [Line Items]
Total impairment charges	$ 24,153	$ 74	$ 10,120
Equity in Earnings of Real Estate Joint Ventures and Partnerships, net	39,206	20,769	25,070
Net impact of impairment charges	24,153	3,127	10,103
Properties Held for Sale, Under Contract for Sale or Sold [Member]
Asset Impairment [Line Items]
Impairment losses related to property	24,109		9,969
Land Held For Development And Undeveloped Land [Member]
Asset Impairment [Line Items]
Impairment losses related to property	$ 44	74	151
Impairment in Equity in Earnings (Losses) of Real Estate Joint Venture And Partnership Net [Member]
Asset Impairment [Line Items]
Equity in Earnings of Real Estate Joint Ventures and Partnerships, net		3,070
Impairment in Net Income Attributable to Noncontrolling Interest [Member]
Asset Impairment [Line Items]
Net income attributable to noncontrolling interests		$ (17)	$ (17)

Income Tax Considerations (Narr

Income Tax Considerations (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Fixed assets book value in excess of (less than) tax basis	$ 183.1	$ 286.2
Current tax obligation	$ 0.9	$ 0.7

Income Tax Considerations (Sche

Income Tax Considerations (Schedule Of Reconciling Net Income Adjusted For Noncontrolling Interests To REIT Taxable Income) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Net income adjusted for noncontrolling interests	$ 112,149	$ 315,435	$ 327,601
Net loss (income) of taxable REIT subsidiary included above	206	(32,225)	(13,496)
Net income from REIT operations	112,355	283,210	314,105
Book depreciation and amortization	147,660	132,957	158,607
Tax depreciation and amortization	(82,414)	(75,824)	(89,700)
Book/tax difference on gains/losses from capital transactions	(54,476)	(89,217)	19,807
Deferred/prepaid/above and below-market rents, net	(13,977)	(9,332)	(15,589)
Impairment loss from REIT operations	23,367	3,118	10,008
Book/tax on bad debt expense	35,075	217	(749)
Other book/tax differences, net	(5,390)	(21,575)	(12,969)
REIT taxable income	162,200	223,554	383,520
Dividends paid deduction	(162,200)	(223,554)	(383,520)
Dividends paid in excess of taxable income	0	0	0
Designated dividends	$ 114,800	$ 121,200	$ 105,700

Income Tax Considerations (Sc_2

Income Tax Considerations (Schedule Of Cash Dividends Distributed To Common Shareholders) (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Ordinary income	79.90%	65.40%	42.20%
Capital gain distributions	20.10%	34.60%	57.80%
Total	100.00%	100.00%	100.00%

Income Tax Considerations (Sc_3

Income Tax Considerations (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Impairment loss	$ 4,638	$ 4,692
Net operating loss carryforwards	3,216	3,206
Book-tax basis differential	1,116	1,101
Other	255	177
Total deferred tax assets	9,225	9,176
Valuation allowance	(5,551)	(5,749)
Total deferred tax assets, net of allowance	3,674	3,427
Deferred tax liabilities:
Book-tax basis differential	1,547	1,547
Other	118	155
Total deferred tax liabilities	1,665	$ 1,702
Deferred tax assets, operating loss carryforwards, not subject to expiration	$ 15,300

Income Tax Considerations (Sc_4

Income Tax Considerations (Schedule Of Income Tax Provision) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Net (loss) income before taxes of taxable REIT subsidiary	$ (578)	$ 32,602	$ 13,480
Federal (benefit) provision	(121)	6,846	2,831
Valuation allowance decrease	(198)	(7,038)	(2,800)
Other	(54)	569	(46)
Federal income tax (benefit) provision of taxable REIT subsidiary	(373)	377	(15)
State and local taxes, primarily Texas franchise taxes	824	663	1,393
Total	$ 451	$ 1,040	$ 1,378
Statutory income tax rate	21.00%	21.00%	21.00%

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Schedule of Cash and Cash Equivalents) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Cash and Cash Equivalents *	$ 35,418	$ 41,481	$ 65,865
Restricted Deposits and Escrows	12,338	13,810	10,272
Total	$ 47,756	$ 55,291	$ 76,137	$ 21,334

Supplemental Cash Flow Inform_4

Supplemental Cash Flow Information (Summary of Non-Cash Transactions) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Supplemental Cash Flow Elements [Abstract]
Accrued property construction costs	$ 7,158	$ 8,014	$ 11,135
Reduction of debt service guaranty liability	(3,730)	(3,520)	(3,245)
Right-of-use assets exchanged for operating lease liabilities	468	$ 43,729	$ 0
Increase in debt, net associated with the acquisition of real estate and land	87,339
Increase in other assets, net associated with the disposition of real estate and land	19,930
Increase in property associated with related party transaction	130,663
Decrease in investment in real estate joint ventures and partnerships, net associated with related party transaction	$ (28,823)

Earnings Per Share (Components

Earnings Per Share (Components Of Earnings Per Common Share - Basic And Diluted) (Details) - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Numerator:
Net Income	$ 118,959	$ 322,575	$ 345,343
Net income attributable to noncontrolling interests	6,810	7,140	17,742
Net income attributable to common shareholders - basic	112,149	315,435	327,601
Income attributable to operating partnership units	0	2,112	0
Net income attributable to common shareholders - diluted	$ 112,149	$ 317,547	$ 327,601
Denominator:
Weighted average shares outstanding - basic (in shares)	127,291	127,842	127,651
Effect of dilutive securities:
Share options and awards (in shares)	878	842	790
Operating partnership units (in shares)	0	1,432	0
Weighted average shares outstanding - diluted (in shares)	128,169	130,116	128,441

Earnings Per Share (Schedule Of

Earnings Per Share (Schedule Of Anti-Dilutive Securities Of Common Shares) (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2018
Operating partnership units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities (in shares)	1,432	1,432

Share Options And Awards (Narra

Share Options And Awards (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)	43,016	207,416	279,877	828,354
Net compensation expense for share options and restricted shares	$ 9,200,000	$ 8,300,000	$ 7,300,000
Net capitalized compensation expense	1,000,000	800,000	1,100,000
Share Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total intrinsic value of options exercised	1,000,000	900,000	$ 3,600,000
Unrecognized compensation cost, share options	0
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation expense	$ 1,800,000	$ 2,100,000
Weighted average expected amortization period for unrecognized compensation cost (in years)	1 year 7 months 6 days	1 year 9 months 18 days
2010 Restated LT Incentive Plan Stock Options and Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Plan common shares authorized (in shares)	4,000,000
Plan common shares available for future grants (in shares)	700,000

Share Options And Awards (Summa

Share Options And Awards (Summary Of Option Activity) (Details) - $ / shares	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares under option, outstanding beginning of period (in shares)	207,416	279,877	828,354
Shares under option, forfeited or expired (in shares)	(23,222)	(1,136)	(196,159)
Shares under option, exercised (in shares)	(141,178)	(71,325)	(352,318)
Shares under option, outstanding end of period (in shares)	43,016	207,416	279,877
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]
Weighted average exercise price, outstanding beginning of period (in dollars per share)	$ 23.84	$ 22.30	$ 23.58
Weighted average exercise price, forfeited or expired (in dollars per share)	22.68	11.85	32.22
Weighted average exercise price, exercised (in dollars per share)	23.72	17.98	19.78
Weighted average exercise price, outstanding end of period (in dollars per share)	$ 24.87	$ 23.84	$ 22.30

Share Options And Awards (Share

Share Options And Awards (Share Options Outstanding And Exercisable) (Details) - $24.87	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Range of exercise prices, upper (in dollars per share)	$ 24.87
Share option outstanding, number (in shares) | shares	43,016
Share option outstanding, weighted average remaining contractual life (years)	2 months 12 days
Share option outstanding, weighted average exercise price (in dollars per share)	$ 24.87
Share option exercisable, number (in shares) | shares	43,016
Share option exercisable, weighted average exercisable average life (years)	2 months 12 days
Share option exercisable, weighted average exercise price (in dollars per share)	$ 24.87

Share Options and Awards (Fair

Share Options and Awards (Fair Value Of Market-Based Share Awards Assumptions) (Details) - Restricted Shares [Member]	12 Months Ended
	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility, minimum	19.00%
Expected volatility, maximum	20.00%
Expected life (in years)	3 years
Risk-free interest rate, minimum	0.00%
Risk-free interest rate, maximum	1.60%
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	0.00%
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend yield	5.20%

Share Options and Awards (Sum_2

Share Options and Awards (Summary Of The Status Of Unvested Share Awards) (Details)	12 Months Ended
	Dec. 31, 2020$ / sharesshares
Service-Based Share Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested share awards, granted (in shares) | shares	146,750
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant date fair value, granted (in dollars per share) | $ / shares	$ 30.08
Market-Based Awards Relative To FTSE NAREIT U.S. Shopping Center Index [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested share awards, granted (in shares) | shares	66,953
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant date fair value, granted (in dollars per share) | $ / shares	$ 31.18
Market-Based Awards Relative To Three-Year Absolute Total Shareholder Return [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested share awards, granted (in shares) | shares	66,952
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant date fair value, granted (in dollars per share) | $ / shares	$ 21.29
Trust Manager Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested share awards, granted (in shares) | shares	42,666
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant date fair value, granted (in dollars per share) | $ / shares	$ 17.04
Restricted Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested share awards, outstanding, January 1, 2020 (in shares) | shares	801,346
Unvested share awards, vested (in shares) | shares	(265,672)
Unvested share awards, forfeited (in shares) | shares	(2,700)
Unvested share awards, outstanding, December 31, 2020 (in shares) | shares	856,295
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Weighted average grant date fair value, outstanding, January 1, 2020 (in dollars per share) | $ / shares	$ 29.56
Weighted average grant date fair value, vested (in dollars per share) | $ / shares	31.21
Weighted average grant date fair value, forfeited (in dollars per share) | $ / shares	29.10
Weighted average grant date fair value, outstanding, December 31, 2020 (in dollars per share) | $ / shares	$ 28

Employee Benefit Plans (Narrati

Employee Benefit Plans (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plan, long-term rate of return on assets	7.00%	7.00%	7.00%
Defined benefit plan, expected future employer contributions, next fiscal year	$ 1
Defined contribution plan, compensation expense	$ 3.6	$ 3.9	$ 3.8
Defined Benefit Plan, Equity Investments by Sector Concentration Risk [Member] | Equity Securities | Technology Sector [Member]
Defined Benefit Plan Disclosure [Line Items]
Concentrations of risk (percentage)	23.00%
Defined Benefit Plan, Equity Investments by Sector Concentration Risk [Member] | Equity Securities | Consumer Cyclical Goods Sector [Member]
Defined Benefit Plan Disclosure [Line Items]
Concentrations of risk (percentage)	16.00%
Defined Benefit Plan, Equity Investments by Sector Concentration Risk [Member] | Equity Securities | Financial Services Sector [Member]
Defined Benefit Plan Disclosure [Line Items]
Concentrations of risk (percentage)	15.00%
Defined Benefit Plan, Equity Investments by Sector Concentration Risk [Member] | Equity Securities | Healthcare Sector [Member]
Defined Benefit Plan Disclosure [Line Items]
Concentrations of risk (percentage)	14.00%
Defined Benefit Plan, Equity Investments by Sector Concentration Risk [Member] | Equity Securities | Communication Services Sector [Member]
Defined Benefit Plan Disclosure [Line Items]
Concentrations of risk (percentage)	11.00%

Employee Benefit Plans (Schedul

Employee Benefit Plans (Schedule Of Changes In The Benefit Obligation, The Plan Assets, The Funded Status Of Pension Plans And Components Of Net Periodic Benefit Costs) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Change in Projected Benefit Obligation:
Benefit obligation at beginning of year	$ 64,253	$ 55,759
Service cost	1,317	1,090	$ 1,295
Interest cost	1,945	2,257	2,056
Actuarial loss	7,253	7,889
Benefit payments	(2,600)	(2,742)
Benefit obligation at end of year	72,168	64,253	55,759
Change in Plan Assets:
Fair value of plan assets at beginning of year	59,416	50,802
Actual return on plan assets	10,469	10,356
Employer contributions	1,000	1,000
Benefit payments	(2,600)	(2,742)
Fair value of plan assets at end of year	68,285	59,416	$ 50,802
Unfunded status at end of year (included in accounts payable and accrued expenses at the end of period)	(3,883)	(4,837)
Accumulated benefit obligation	72,053	64,159
Net loss recognized in accumulated other comprehensive loss	$ 14,774	$ 14,897

Employee Benefit Plans Schedule

Employee Benefit Plans Schedule Of Changes In Plan Assets And Benefit Obligations Recognized In Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Net loss	$ 898	$ 1,044	$ 1,143
Amortization of net loss	(1,021)	(1,197)	(1,228)
Total recognized in other comprehensive income	(123)	(153)	(85)
Total recognized in net periodic benefit cost and other comprehensive income	$ 46	$ 880	$ 767

Employee Benefit Plans (Sched_2

Employee Benefit Plans (Schedule Of Accumulated Benefit Obligation In Excess Of Plan Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Retirement Benefits [Abstract]
Projected benefit obligation	$ 72,168	$ 64,253
Accumulated benefit obligation	72,053	64,159
Fair value of plan assets	$ 68,285	$ 59,416

Employee Benefit Plans (Sched_3

Employee Benefit Plans (Schedule Of Net Periodic Benefit Cost) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Service cost	$ 1,317	$ 1,090	$ 1,295
Interest cost	1,945	2,257	2,056
Expected return on plan assets	(4,114)	(3,511)	(3,727)
Amortization of net loss	1,021	1,197	1,228
Total	$ 169	$ 1,033	$ 852

Employee Benefit Plans (Sched_4

Employee Benefit Plans (Schedule Of Assumptions Used To Develop Periodic Expense) (Details)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Discount rate	3.09%	4.12%	3.50%
Salary scale increases	3.50%	3.50%	3.50%
Long-term rate of return on assets	7.00%	7.00%	7.00%
Interest credit rate for cash balance plan	4.50%	4.50%	4.50%

Employee Benefit Plans (Sched_5

Employee Benefit Plans (Schedule Of Assumptions Used To Develop The Actuarial Present Value Of The Benefit Obligations) (Details)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Retirement Benefits [Abstract]
Discount rate	2.32%	3.09%	4.12%
Salary scale increases	3.50%	3.50%	3.50%
Interest credit rate for cash balance plan	4.50%	4.50%	4.50%

Employee Benefit Plans (Sched_6

Employee Benefit Plans (Schedule Of Expected Benefit Payments For The Next Ten Years) (Details) $ in Thousands	Dec. 31, 2020USD ($)
Retirement Benefits [Abstract]
2021	$ 2,601
2022	2,769
2023	2,939
2024	3,061
2025	3,132
2026-2030	$ 16,366

Employee Benefit Plans (Sched_7

Employee Benefit Plans (Schedule Of Investment Asset Allocation To Benchmarking) (Details)	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Portfolio, actual asset allocation	100.00%
Benchmark, target asset allocation	100.00%
Cash and Short-Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, actual asset allocation	5.00%
Benchmark, target asset allocation	6.00%
U.S. Stocks [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, actual asset allocation	52.00%
Benchmark, target asset allocation	57.00%
International Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, actual asset allocation	15.00%
Benchmark, target asset allocation	10.00%
U.S. Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, actual asset allocation	23.00%
Benchmark, target asset allocation	23.00%
International Bonds [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, actual asset allocation	4.00%
Benchmark, target asset allocation	3.00%
Other Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Portfolio, actual asset allocation	1.00%
Benchmark, target asset allocation	1.00%

Employee Benefit Plans (Sched_8

Employee Benefit Plans (Schedule Of Allocation Of The Fair Value Of Plan Assets) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	100.00%
Asset allocation value	$ 68,285	$ 59,416	$ 50,802
Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	100.00%	100.00%
Asset allocation value	$ 68,285	$ 59,416
Cash and Short-Term Investments [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	5.00%
Cash and Short-Term Investments [Member] | Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	18.00%	18.00%
Asset allocation value	$ 12,334	$ 10,624
Large Company Funds [Member] | Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	36.00%	34.00%
Asset allocation value	$ 24,790	$ 20,410
Mid Company Funds [Member] | Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	5.00%	7.00%
Asset allocation value	$ 3,595	$ 4,107
Small Company Funds [Member] | Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	5.00%	7.00%
Asset allocation value	$ 3,538	$ 4,071
International Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	15.00%
International Funds [Member] | Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	11.00%	11.00%
Asset allocation value	$ 7,502	$ 6,313
Fixed Income Funds [Member] | Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	15.00%	15.00%
Asset allocation value	$ 10,138	$ 9,106
Growth Funds [Member] | Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset allocation percentage	10.00%	8.00%
Asset allocation value	$ 6,388	$ 4,785

Related Parties (Schedule of re

Related Parties (Schedule of related party transactions) (Details) - USD ($) $ in Thousands	Dec. 11, 2020	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Assets
Real Estate Investment Property, at Cost		$ 4,246,334	$ 4,145,249
Property		3,084,364	3,034,574
Unamortized lease costs		174,152	148,479
Other, net		205,074	188,004
Liabilities
Debt, net		(1,838,419)	(1,732,338)
Other, net		(217,489)	(217,770)
Gain on sale of property		$ 65,402	$ 189,914	$ 207,865
Partnership interest | Village Plaza at Bunker Hill
Related Party Transaction [Line Items]
Ownership of joint venture percentage	42.25%	42.25%
Assets
Real Estate Investment Property, at Cost	$ 140,596
Unamortized lease costs	41,328
Other, net	1,741
Liabilities
Debt, net	(73,088)
Other, net	(4,690)
Total net assets	105,887
Partnership interest | Gain on Sale Property | Village Plaza at Bunker Hill
Liabilities
Gain on sale of property	$ 32,453
Unconsolidated joint venture
Related Party Transaction [Line Items]
Ownership percentage	57.75%	57.75%

Related Parties (Net accretion

Related Parties (Net accretion periods) (Details)	Dec. 11, 2020	Dec. 31, 2020	Dec. 31, 2019
Leases, Acquired-in-Place [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years 9 months 18 days	11 years
Above Market Leases [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		7 years 1 month 6 days	7 years 2 months 12 days
Partnership interest | Village Plaza at Bunker Hill | Leases, Acquired-in-Place [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years 7 months 6 days
Partnership interest | Village Plaza at Bunker Hill | Above Market Leases [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years 2 months 12 days
Partnership interest | Village Plaza at Bunker Hill | Below Market Leases [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years
Partnership interest | Village Plaza at Bunker Hill | Above-Market Assumed Mortgages [Member]
Related Party Transaction [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	8 years 7 months 6 days

Commitments and Contingencies (

Commitments and Contingencies (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)Partnership	Dec. 31, 2019USD ($)Partnership
Capital Additions [Member]
Long-term Purchase Commitment [Line Items]
Purchase contract, commitment	$ 51.2
Capital Additions [Member] | Minimum [Member]
Long-term Purchase Commitment [Line Items]
Construction contract, period (in months)	12 months
Capital Additions [Member] | Maximum [Member]
Long-term Purchase Commitment [Line Items]
Construction contract, period (in months)	36 months
DownREIT [Member]
Long-term Purchase Commitment [Line Items]
Number of real estate joint ventures | Partnership	2	2
Aggregate redemption value	$ 31	$ 45

Variable Interest Entities (Nar

Variable Interest Entities (Narrative) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2020USD ($)itemproperty	Dec. 31, 2019itemproperty
Variable Interest Entity [Line Items]
Additional support contributions | $	$ 2.7
Consolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Number of VIE real estate joint ventures	8	8
Number of real estate properties | property	21	21
Number of VIE real estate joint ventures guaranteed by company	1	1
Unconsolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Number of VIE real estate joint ventures	2	2
Additional support contributions | $	$ 0.4
Number of joint venture arrangements	1	1

Variable Interest Entities (Sum

Variable Interest Entities (Summary Of Consolidated Variable Interest Entities) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020USD ($)item	Dec. 31, 2019USD ($)item
Variable Interest Entity [Line Items]
Assets	$ 3,961,400	$ 3,937,934
Assets Held as Collateral for Debt	3,961,400	3,937,934
Consolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Assets	225,719	228,954
Assets Held as Collateral for Debt	225,719	228,954
Maximum Risk of Loss	$ 29,784	$ 29,784
Number of VIE real estate joint ventures guaranteed by company | item	1	1
Asset Pledged as Collateral [Member] | Consolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Assets	$ 41,798	$ 39,782
Assets Held as Collateral for Debt	$ 41,798	$ 39,782

Variable Interest Entities (S_2

Variable Interest Entities (Summary Of Unconsolidated Variable Interest Entities) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Investment in Real Estate Joint Ventures and Partnerships, net	$ 369,038	$ 427,947
Other liabilities, net	217,489	217,770
Unconsolidated Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Investment in Real Estate Joint Ventures and Partnerships, net	133,468	128,361
Maximum risk of loss	34,000	34,000
Unconsolidated Variable Interest Entities [Member] | Other Liabilities [Member]
Variable Interest Entity [Line Items]
Other liabilities, net	$ 7,624	$ 7,735

Fair Value Measurements (Assets

Fair Value Measurements (Assets And Liabilities Measured On Recurring Basis) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Assets:
Restricted cash, primarily money market funds	$ 12,122	$ 12,793
Liabilities:
Gain included in interest and other income/expense	5,100	9,400
Equity securities, unrealized gain (loss)	3,700	6,700
Recurring [Member]
Assets:
Assets, fair value disclosure	53,711	76,624
Liabilities:
Deferred compensation plan obligations	43,412	38,378
Total	43,412	38,378
Recurring [Member] | Money Market Funds [Member]
Assets:
Cash equivalents	155	28,330
Restricted cash, primarily money market funds	10,144	9,916
Recurring [Member] | Grantor Trusts [Member]
Assets:
Investments, mutual funds held in a grantor trust	43,412	38,378
Recurring [Member] | Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member]
Assets:
Assets, fair value disclosure	53,711	76,624
Liabilities:
Deferred compensation plan obligations	43,412	38,378
Total	43,412	38,378
Recurring [Member] | Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member] | Money Market Funds [Member]
Assets:
Cash equivalents	155	28,330
Restricted cash, primarily money market funds	10,144	9,916
Recurring [Member] | Quoted Prices In Active Markets For Identical Assets And Liabilities (Level 1) [Member] | Grantor Trusts [Member]
Assets:
Investments, mutual funds held in a grantor trust	$ 43,412	$ 38,378

Fair Value Measurements (Asse_2

Fair Value Measurements (Assets And Liabilities Measured On Nonrecurring Basis) (Details) $ in Thousands	2 Months Ended	3 Months Ended		12 Months Ended
	Feb. 26, 2021Center	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2020USD ($)property	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)
Assets:
Total Gains (Losses)				$ (24,153)	$ (74)	$ (10,120)
Number of centers sold	1			7
Fair Value, Nonrecurring [Member]
Assets:
Assets, fair value		$ 47,746	$ 25,984	$ 47,746	25,984
Total Gains (Losses)				(12,686)
Total Gains (Losses)					(3,070)
Fair Value, Nonrecurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Assets, fair value		47,746	1,830	47,746	1,830
Fair Value, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Assets, fair value			24,154		24,154
Fair Value, Nonrecurring [Member] | Real Estate [Member]
Assets:
Assets, fair value		47,746		47,746
Total Gains (Losses)		12,700		(12,686)
Fair Value, Nonrecurring [Member] | Real Estate [Member] | Carrying Value [Member]
Assets:
Assets, fair value		60,400		60,400
Fair Value, Nonrecurring [Member] | Real Estate [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Assets, fair value		$ 47,746		$ 47,746
Fair Value, Nonrecurring [Member] | Equity Method Investments [Member]
Assets:
Assets, fair value			25,984		25,984
Total Gains (Losses)			(3,100)		(3,070)
Fair Value, Nonrecurring [Member] | Equity Method Investments [Member] | Carrying Value [Member]
Assets:
Assets, fair value			29,100		29,100
Fair Value, Nonrecurring [Member] | Equity Method Investments [Member] | Significant Other Observable Inputs (Level 2) [Member]
Assets:
Assets, fair value			1,830		1,830
Fair Value, Nonrecurring [Member] | Equity Method Investments [Member] | Significant Unobservable Inputs (Level 3) [Member]
Assets:
Assets, fair value			$ 24,154		$ 24,154

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule Of Fair Value Disclosures) (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fixed-Rate Debt [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	$ 1,905,306	$ 1,787,663
Variable Rate Debt [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	40,000	17,426
Carrying Value [Member] | Fixed-Rate Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	1,798,419	1,714,890
Carrying Value [Member] | Variable Rate Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Instrument, Fair Value Disclosure	40,000	17,448
Tax Increment Revenue Bonds [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other than Temporary Impairment, Credit Losses Recognized in Earnings, Credit Losses on Debt Securities Held		31,000
Tax Increment Revenue Bonds [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Held-to-maturity, Fair Value	19,000	25,000
Tax Increment Revenue Bonds [Member] | Carrying Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Held-to-maturity, Fair Value	$ 14,762	$ 17,277

Fair Value Measurements (Signif

Fair Value Measurements (Significant Unobservable Inputs) (Details)	Dec. 31, 2020USD ($)	Dec. 31, 2019USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Alternative Investment, Valuation Technique [Extensible List]		us-gaap:ValuationTechniqueDiscountedCashFlowMember
Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value	$ 47,746,000	$ 25,984,000
Fair Value, Nonrecurring [Member] | Equity Method Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value		25,984,000
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value		24,154,000
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Nonrecurring [Member] | Equity Method Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets, fair value		$ 24,154,000
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Nonrecurring [Member] | Measurement Input, Discount Rate [Member] | Equity Method Investments [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset, measurement input		7.3
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Nonrecurring [Member] | Measurement Input, Discount Rate [Member] | Equity Method Investments [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset, measurement input		7.5
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Nonrecurring [Member] | Measurement Input, Cap Rate [Member] | Equity Method Investments [Member] | Minimum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset, measurement input		5.8
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Nonrecurring [Member] | Measurement Input, Cap Rate [Member] | Equity Method Investments [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset, measurement input		8
Significant Unobservable Inputs (Level 3) [Member] | Fair Value, Nonrecurring [Member] | Measurement Input, Discount for Lack of Marketability [Member] | Equity Method Investments [Member] | Maximum [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Asset, measurement input		15

Subsequent Events (Narrative) (

Subsequent Events (Narrative) (Details) - USD ($) $ in Millions	2 Months Ended	12 Months Ended
	Feb. 26, 2021	Dec. 31, 2020
Subsequent Event [Line Items]
Gross Proceeds From Sale Of Real Estate		$ 194.2
Subsequent Event [Member]
Subsequent Event [Line Items]
Gross Proceeds From Sale Of Real Estate	$ 53.8

Valuation And Qualifying Acco_2

Valuation And Qualifying Accounts (Details) - Tax Valuation Allowance [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 5,749	$ 12,787	$ 15,587
Charged to costs and expenses	0	0	0
Deductions	198	7,038	2,800
Balance at end of period	$ 5,551	$ 5,749	$ 12,787

Real Estate And Accumulated D_2

Real Estate And Accumulated Depreciation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 961,216
Initial Cost to Company, Building and Improvements	2,129,315
Cost Capitalized Subsequent to Acquisition	1,155,803
Gross Amounts Carried at Close of Period, Land	1,008,388
Gross Amounts Carried at Close of Period, Building and Improvements	3,237,946
Gross Amounts Carried at Close of Period, Total	4,246,334	$ 4,145,249	$ 4,105,068	$ 4,498,859
Accumulated Depreciation	(1,161,970)	(1,110,675)	$ (1,108,188)	$ (1,166,126)
Total Costs, Net of Accumulated Depreciation	3,084,364
Encumbrances	(345,057)
Fixed assets book value in excess of (less than) tax basis	183,100	$ 286,200
Non-cash debt	5,300
Deferred finance costs, net	$ (4,500)
Real estate asset, estimated useful life	40 years
Building [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real estate asset, estimated useful life	18 years
Building [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real estate asset, estimated useful life	40 years
Parking Lot Surfacing And Equipment [Member] | Minimum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real estate asset, estimated useful life	10 years
Parking Lot Surfacing And Equipment [Member] | Maximum [Member]
Real Estate and Accumulated Depreciation [Line Items]
Real estate asset, estimated useful life	20 years
Miscellaneous (not to exceed 5% of total) [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 80,212
Initial Cost to Company, Building and Improvements	3,096
Cost Capitalized Subsequent to Acquisition	48,847
Gross Amounts Carried at Close of Period, Land	60,147
Gross Amounts Carried at Close of Period, Building and Improvements	72,008
Gross Amounts Carried at Close of Period, Total	132,155
Accumulated Depreciation	(35,480)
Total Costs, Net of Accumulated Depreciation	96,675
Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	841,761
Initial Cost to Company, Building and Improvements	2,123,550
Cost Capitalized Subsequent to Acquisition	831,410
Gross Amounts Carried at Close of Period, Land	903,284
Gross Amounts Carried at Close of Period, Building and Improvements	2,893,437
Gross Amounts Carried at Close of Period, Total	3,796,721
Accumulated Depreciation	(1,116,075)
Total Costs, Net of Accumulated Depreciation	2,680,646
Encumbrances	(345,057)
Shopping Center [Member] | 10-Federal Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	1,791
Initial Cost to Company, Building and Improvements	7,470
Cost Capitalized Subsequent to Acquisition	2,121
Gross Amounts Carried at Close of Period, Land	1,791
Gross Amounts Carried at Close of Period, Building and Improvements	9,591
Gross Amounts Carried at Close of Period, Total	11,382
Accumulated Depreciation	(7,757)
Total Costs, Net of Accumulated Depreciation	3,625
Encumbrances	$ (6,075)
Date of Acquisition/Construction	Mar. 20, 2008
Shopping Center [Member] | 580 Market Place [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,892
Initial Cost to Company, Building and Improvements	15,570
Cost Capitalized Subsequent to Acquisition	4,197
Gross Amounts Carried at Close of Period, Land	3,889
Gross Amounts Carried at Close of Period, Building and Improvements	19,770
Gross Amounts Carried at Close of Period, Total	23,659
Accumulated Depreciation	(10,466)
Total Costs, Net of Accumulated Depreciation	$ 13,193
Date of Acquisition/Construction	Apr. 2, 2001
Shopping Center [Member] | 8000 Sunset Strip Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 18,320
Initial Cost to Company, Building and Improvements	73,431
Cost Capitalized Subsequent to Acquisition	10,315
Gross Amounts Carried at Close of Period, Land	18,320
Gross Amounts Carried at Close of Period, Building and Improvements	83,746
Gross Amounts Carried at Close of Period, Total	102,066
Accumulated Depreciation	(22,192)
Total Costs, Net of Accumulated Depreciation	$ 79,874
Date of Acquisition/Construction	Jun. 27, 2012
Shopping Center [Member] | Alabama Shepherd Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 637
Initial Cost to Company, Building and Improvements	2,026
Cost Capitalized Subsequent to Acquisition	8,572
Gross Amounts Carried at Close of Period, Land	1,062
Gross Amounts Carried at Close of Period, Building and Improvements	10,173
Gross Amounts Carried at Close of Period, Total	11,235
Accumulated Depreciation	(6,512)
Total Costs, Net of Accumulated Depreciation	$ 4,723
Date of Acquisition/Construction	Apr. 30, 2004
Shopping Center [Member] | Argyle Village Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 4,524
Initial Cost to Company, Building and Improvements	18,103
Cost Capitalized Subsequent to Acquisition	7,140
Gross Amounts Carried at Close of Period, Land	4,526
Gross Amounts Carried at Close of Period, Building and Improvements	25,241
Gross Amounts Carried at Close of Period, Total	29,767
Accumulated Depreciation	(11,693)
Total Costs, Net of Accumulated Depreciation	$ 18,074
Date of Acquisition/Construction	Nov. 30, 2001
Shopping Center [Member] | Avent Ferry Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,952
Initial Cost to Company, Building and Improvements	7,814
Cost Capitalized Subsequent to Acquisition	1,557
Gross Amounts Carried at Close of Period, Land	1,952
Gross Amounts Carried at Close of Period, Building and Improvements	9,371
Gross Amounts Carried at Close of Period, Total	11,323
Accumulated Depreciation	(4,673)
Total Costs, Net of Accumulated Depreciation	$ 6,650
Date of Acquisition/Construction	Apr. 4, 2002
Shopping Center [Member] | Baybrook Gateway [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 10,623
Initial Cost to Company, Building and Improvements	30,307
Cost Capitalized Subsequent to Acquisition	5,283
Gross Amounts Carried at Close of Period, Land	10,623
Gross Amounts Carried at Close of Period, Building and Improvements	35,590
Gross Amounts Carried at Close of Period, Total	46,213
Accumulated Depreciation	(8,075)
Total Costs, Net of Accumulated Depreciation	$ 38,138
Date of Acquisition/Construction	Feb. 4, 2015
Shopping Center [Member] | Bellaire Blvd. Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 124
Initial Cost to Company, Building and Improvements	37
Cost Capitalized Subsequent to Acquisition	961
Gross Amounts Carried at Close of Period, Land	1,011
Gross Amounts Carried at Close of Period, Building and Improvements	111
Gross Amounts Carried at Close of Period, Total	1,122
Accumulated Depreciation	(55)
Total Costs, Net of Accumulated Depreciation	$ 1,067
Date of Acquisition/Construction	Nov. 13, 2008
Shopping Center [Member] | Blalock Market at I-10 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Building and Improvements	$ 4,730
Cost Capitalized Subsequent to Acquisition	2,108
Gross Amounts Carried at Close of Period, Building and Improvements	6,838
Gross Amounts Carried at Close of Period, Total	6,838
Accumulated Depreciation	(5,747)
Total Costs, Net of Accumulated Depreciation	$ 1,091
Date of Acquisition/Construction	Dec. 31, 1990
Shopping Center [Member] | Boca Lyons Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,676
Initial Cost to Company, Building and Improvements	14,706
Cost Capitalized Subsequent to Acquisition	6,727
Gross Amounts Carried at Close of Period, Land	3,651
Gross Amounts Carried at Close of Period, Building and Improvements	21,458
Gross Amounts Carried at Close of Period, Total	25,109
Accumulated Depreciation	(10,214)
Total Costs, Net of Accumulated Depreciation	$ 14,895
Date of Acquisition/Construction	Aug. 17, 2001
Shopping Center [Member] | Broadway Marketplace [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 898
Initial Cost to Company, Building and Improvements	3,637
Cost Capitalized Subsequent to Acquisition	2,149
Gross Amounts Carried at Close of Period, Land	906
Gross Amounts Carried at Close of Period, Building and Improvements	5,778
Gross Amounts Carried at Close of Period, Total	6,684
Accumulated Depreciation	(4,146)
Total Costs, Net of Accumulated Depreciation	$ 2,538
Date of Acquisition/Construction	Dec. 16, 1993
Shopping Center [Member] | Brownsville Commons [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,333
Initial Cost to Company, Building and Improvements	5,536
Cost Capitalized Subsequent to Acquisition	638
Gross Amounts Carried at Close of Period, Land	1,333
Gross Amounts Carried at Close of Period, Building and Improvements	6,174
Gross Amounts Carried at Close of Period, Total	7,507
Accumulated Depreciation	(2,386)
Total Costs, Net of Accumulated Depreciation	$ 5,121
Date of Acquisition/Construction	May 22, 2006
Shopping Center [Member] | Cambrian Park Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 48,803
Initial Cost to Company, Building and Improvements	1,089
Cost Capitalized Subsequent to Acquisition	189
Gross Amounts Carried at Close of Period, Land	48,851
Gross Amounts Carried at Close of Period, Building and Improvements	1,230
Gross Amounts Carried at Close of Period, Total	50,081
Accumulated Depreciation	(1,039)
Total Costs, Net of Accumulated Depreciation	$ 49,042
Date of Acquisition/Construction	Feb. 27, 2015
Shopping Center [Member] | Camelback Miller Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 9,176
Initial Cost to Company, Building and Improvements	26,898
Cost Capitalized Subsequent to Acquisition	4,377
Gross Amounts Carried at Close of Period, Land	9,478
Gross Amounts Carried at Close of Period, Building and Improvements	30,973
Gross Amounts Carried at Close of Period, Total	40,451
Accumulated Depreciation	(1,257)
Total Costs, Net of Accumulated Depreciation	$ 39,194
Date of Acquisition/Construction	Jun. 27, 2019
Shopping Center [Member] | Camelback Village Square [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Building and Improvements	$ 8,720
Cost Capitalized Subsequent to Acquisition	2,252
Gross Amounts Carried at Close of Period, Building and Improvements	10,972
Gross Amounts Carried at Close of Period, Total	10,972
Accumulated Depreciation	(6,826)
Total Costs, Net of Accumulated Depreciation	$ 4,146
Date of Acquisition/Construction	Sep. 30, 1994
Shopping Center [Member] | Camp Creek Marketplace II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 6,169
Initial Cost to Company, Building and Improvements	32,036
Cost Capitalized Subsequent to Acquisition	5,044
Gross Amounts Carried at Close of Period, Land	4,697
Gross Amounts Carried at Close of Period, Building and Improvements	38,552
Gross Amounts Carried at Close of Period, Total	43,249
Accumulated Depreciation	(13,662)
Total Costs, Net of Accumulated Depreciation	$ 29,587
Date of Acquisition/Construction	Aug. 22, 2006
Shopping Center [Member] | Capital Square [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,852
Initial Cost to Company, Building and Improvements	7,406
Cost Capitalized Subsequent to Acquisition	2,043
Gross Amounts Carried at Close of Period, Land	1,852
Gross Amounts Carried at Close of Period, Building and Improvements	9,449
Gross Amounts Carried at Close of Period, Total	11,301
Accumulated Depreciation	(4,702)
Total Costs, Net of Accumulated Depreciation	$ 6,599
Date of Acquisition/Construction	Apr. 4, 2002
Shopping Center [Member] | Centerwood Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 915
Initial Cost to Company, Building and Improvements	3,659
Cost Capitalized Subsequent to Acquisition	3,696
Gross Amounts Carried at Close of Period, Land	914
Gross Amounts Carried at Close of Period, Building and Improvements	7,356
Gross Amounts Carried at Close of Period, Total	8,270
Accumulated Depreciation	(4,084)
Total Costs, Net of Accumulated Depreciation	$ 4,186
Date of Acquisition/Construction	Apr. 2, 2001
Shopping Center [Member] | Charleston Commons Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 23,230
Initial Cost to Company, Building and Improvements	36,877
Cost Capitalized Subsequent to Acquisition	6,710
Gross Amounts Carried at Close of Period, Land	23,210
Gross Amounts Carried at Close of Period, Building and Improvements	43,607
Gross Amounts Carried at Close of Period, Total	66,817
Accumulated Depreciation	(15,552)
Total Costs, Net of Accumulated Depreciation	$ 51,265
Date of Acquisition/Construction	Dec. 20, 2006
Shopping Center [Member] | Chino Hills Marketplace [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 7,218
Initial Cost to Company, Building and Improvements	28,872
Cost Capitalized Subsequent to Acquisition	14,126
Gross Amounts Carried at Close of Period, Land	7,234
Gross Amounts Carried at Close of Period, Building and Improvements	42,982
Gross Amounts Carried at Close of Period, Total	50,216
Accumulated Depreciation	(24,707)
Total Costs, Net of Accumulated Depreciation	$ 25,509
Date of Acquisition/Construction	Aug. 20, 2002
Shopping Center [Member] | Citadel Building [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,236
Initial Cost to Company, Building and Improvements	6,168
Cost Capitalized Subsequent to Acquisition	9,198
Gross Amounts Carried at Close of Period, Land	534
Gross Amounts Carried at Close of Period, Building and Improvements	18,068
Gross Amounts Carried at Close of Period, Total	18,602
Accumulated Depreciation	(15,770)
Total Costs, Net of Accumulated Depreciation	$ 2,832
Date of Acquisition/Construction	Dec. 30, 1975
Shopping Center [Member] | College Park Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,201
Initial Cost to Company, Building and Improvements	8,845
Cost Capitalized Subsequent to Acquisition	8,372
Gross Amounts Carried at Close of Period, Land	2,641
Gross Amounts Carried at Close of Period, Building and Improvements	16,777
Gross Amounts Carried at Close of Period, Total	19,418
Accumulated Depreciation	(12,845)
Total Costs, Net of Accumulated Depreciation	6,573
Encumbrances	$ (11,369)
Date of Acquisition/Construction	Nov. 16, 1998
Shopping Center [Member] | Colonial Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 10,806
Initial Cost to Company, Building and Improvements	43,234
Cost Capitalized Subsequent to Acquisition	18,864
Gross Amounts Carried at Close of Period, Land	10,813
Gross Amounts Carried at Close of Period, Building and Improvements	62,091
Gross Amounts Carried at Close of Period, Total	72,904
Accumulated Depreciation	(35,063)
Total Costs, Net of Accumulated Depreciation	$ 37,841
Date of Acquisition/Construction	Feb. 21, 2001
Shopping Center [Member] | Countryside Centre [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 15,523
Initial Cost to Company, Building and Improvements	29,818
Cost Capitalized Subsequent to Acquisition	10,859
Gross Amounts Carried at Close of Period, Land	15,559
Gross Amounts Carried at Close of Period, Building and Improvements	40,641
Gross Amounts Carried at Close of Period, Total	56,200
Accumulated Depreciation	(18,420)
Total Costs, Net of Accumulated Depreciation	$ 37,780
Date of Acquisition/Construction	Jul. 6, 2007
Shopping Center [Member] | Covington Esplanade [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 10,571
Initial Cost to Company, Building and Improvements	18,509
Cost Capitalized Subsequent to Acquisition	31
Gross Amounts Carried at Close of Period, Land	10,571
Gross Amounts Carried at Close of Period, Building and Improvements	18,540
Gross Amounts Carried at Close of Period, Total	29,111
Accumulated Depreciation	(705)
Total Costs, Net of Accumulated Depreciation	$ 28,406
Date of Acquisition/Construction	Nov. 18, 2019
Shopping Center [Member] | Crossing At Stonegate [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 6,400
Initial Cost to Company, Building and Improvements	23,384
Cost Capitalized Subsequent to Acquisition	437
Gross Amounts Carried at Close of Period, Land	6,400
Gross Amounts Carried at Close of Period, Building and Improvements	23,821
Gross Amounts Carried at Close of Period, Total	30,221
Accumulated Depreciation	(3,508)
Total Costs, Net of Accumulated Depreciation	26,713
Encumbrances	$ (13,261)
Date of Acquisition/Construction	Feb. 12, 2016
Shopping Center [Member] | Deerfield Mall [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 10,522
Initial Cost to Company, Building and Improvements	94,321
Cost Capitalized Subsequent to Acquisition	9,489
Gross Amounts Carried at Close of Period, Land	27,806
Gross Amounts Carried at Close of Period, Building and Improvements	86,526
Gross Amounts Carried at Close of Period, Total	114,332
Accumulated Depreciation	(13,576)
Total Costs, Net of Accumulated Depreciation	$ 100,756
Date of Acquisition/Construction	May 5, 2016
Shopping Center [Member] | Desert Village Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,362
Initial Cost to Company, Building and Improvements	14,969
Cost Capitalized Subsequent to Acquisition	2,562
Gross Amounts Carried at Close of Period, Land	3,362
Gross Amounts Carried at Close of Period, Building and Improvements	17,531
Gross Amounts Carried at Close of Period, Total	20,893
Accumulated Depreciation	(5,396)
Total Costs, Net of Accumulated Depreciation	$ 15,497
Date of Acquisition/Construction	Oct. 28, 2010
Shopping Center [Member] | Edgewater Marketplace [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 4,821
Initial Cost to Company, Building and Improvements	11,225
Cost Capitalized Subsequent to Acquisition	2,424
Gross Amounts Carried at Close of Period, Land	4,821
Gross Amounts Carried at Close of Period, Building and Improvements	13,649
Gross Amounts Carried at Close of Period, Total	18,470
Accumulated Depreciation	(3,825)
Total Costs, Net of Accumulated Depreciation	$ 14,645
Date of Acquisition/Construction	Nov. 19, 2010
Shopping Center [Member] | El Camino Promenade [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 4,431
Initial Cost to Company, Building and Improvements	20,557
Cost Capitalized Subsequent to Acquisition	5,418
Gross Amounts Carried at Close of Period, Land	4,429
Gross Amounts Carried at Close of Period, Building and Improvements	25,977
Gross Amounts Carried at Close of Period, Total	30,406
Accumulated Depreciation	(11,910)
Total Costs, Net of Accumulated Depreciation	$ 18,496
Date of Acquisition/Construction	May 21, 2004
Shopping Center [Member] | Embassy Lakes Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,803
Initial Cost to Company, Building and Improvements	11,268
Cost Capitalized Subsequent to Acquisition	2,963
Gross Amounts Carried at Close of Period, Land	2,803
Gross Amounts Carried at Close of Period, Building and Improvements	14,231
Gross Amounts Carried at Close of Period, Total	17,034
Accumulated Depreciation	(6,545)
Total Costs, Net of Accumulated Depreciation	$ 10,489
Date of Acquisition/Construction	Dec. 18, 2002
Shopping Center [Member] | Entrada de Oro Plaza Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 6,041
Initial Cost to Company, Building and Improvements	10,511
Cost Capitalized Subsequent to Acquisition	1,721
Gross Amounts Carried at Close of Period, Land	6,115
Gross Amounts Carried at Close of Period, Building and Improvements	12,158
Gross Amounts Carried at Close of Period, Total	18,273
Accumulated Depreciation	(4,950)
Total Costs, Net of Accumulated Depreciation	$ 13,323
Date of Acquisition/Construction	Jan. 22, 2007
Shopping Center [Member] | Epic Village St. Augustine [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 283
Initial Cost to Company, Building and Improvements	1,171
Cost Capitalized Subsequent to Acquisition	3,331
Gross Amounts Carried at Close of Period, Land	110
Gross Amounts Carried at Close of Period, Building and Improvements	4,675
Gross Amounts Carried at Close of Period, Total	4,785
Accumulated Depreciation	(3,792)
Total Costs, Net of Accumulated Depreciation	$ 993
Date of Acquisition/Construction	Sep. 30, 2009
Shopping Center [Member] | Falls Pointe Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,535
Initial Cost to Company, Building and Improvements	14,289
Cost Capitalized Subsequent to Acquisition	1,633
Gross Amounts Carried at Close of Period, Land	3,542
Gross Amounts Carried at Close of Period, Building and Improvements	15,915
Gross Amounts Carried at Close of Period, Total	19,457
Accumulated Depreciation	(7,339)
Total Costs, Net of Accumulated Depreciation	$ 12,118
Date of Acquisition/Construction	Dec. 17, 2002
Shopping Center [Member] | Festival on Jefferson Court [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 5,041
Initial Cost to Company, Building and Improvements	13,983
Cost Capitalized Subsequent to Acquisition	4,275
Gross Amounts Carried at Close of Period, Land	5,022
Gross Amounts Carried at Close of Period, Building and Improvements	18,277
Gross Amounts Carried at Close of Period, Total	23,299
Accumulated Depreciation	(8,792)
Total Costs, Net of Accumulated Depreciation	$ 14,507
Date of Acquisition/Construction	Dec. 22, 2004
Shopping Center [Member] | Fiesta Trails [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 8,825
Initial Cost to Company, Building and Improvements	32,790
Cost Capitalized Subsequent to Acquisition	15,034
Gross Amounts Carried at Close of Period, Land	11,267
Gross Amounts Carried at Close of Period, Building and Improvements	45,382
Gross Amounts Carried at Close of Period, Total	56,649
Accumulated Depreciation	(18,429)
Total Costs, Net of Accumulated Depreciation	$ 38,220
Date of Acquisition/Construction	Sep. 30, 2003
Shopping Center [Member] | Fountain Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,319
Initial Cost to Company, Building and Improvements	5,276
Cost Capitalized Subsequent to Acquisition	2,811
Gross Amounts Carried at Close of Period, Land	1,095
Gross Amounts Carried at Close of Period, Building and Improvements	8,311
Gross Amounts Carried at Close of Period, Total	9,406
Accumulated Depreciation	(5,253)
Total Costs, Net of Accumulated Depreciation	$ 4,153
Date of Acquisition/Construction	Mar. 10, 1994
Shopping Center [Member] | Francisco Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,999
Initial Cost to Company, Building and Improvements	7,997
Cost Capitalized Subsequent to Acquisition	5,701
Gross Amounts Carried at Close of Period, Land	2,403
Gross Amounts Carried at Close of Period, Building and Improvements	13,294
Gross Amounts Carried at Close of Period, Total	15,697
Accumulated Depreciation	(9,274)
Total Costs, Net of Accumulated Depreciation	6,423
Encumbrances	$ (10,327)
Date of Acquisition/Construction	Nov. 16, 1998
Shopping Center [Member] | Freedom Centre [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,929
Initial Cost to Company, Building and Improvements	15,302
Cost Capitalized Subsequent to Acquisition	6,266
Gross Amounts Carried at Close of Period, Land	6,944
Gross Amounts Carried at Close of Period, Building and Improvements	17,553
Gross Amounts Carried at Close of Period, Total	24,497
Accumulated Depreciation	(8,290)
Total Costs, Net of Accumulated Depreciation	$ 16,207
Date of Acquisition/Construction	Jun. 23, 2006
Shopping Center [Member] | Galveston Place [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,713
Initial Cost to Company, Building and Improvements	5,522
Cost Capitalized Subsequent to Acquisition	6,223
Gross Amounts Carried at Close of Period, Land	3,279
Gross Amounts Carried at Close of Period, Building and Improvements	11,179
Gross Amounts Carried at Close of Period, Total	14,458
Accumulated Depreciation	(9,141)
Total Costs, Net of Accumulated Depreciation	$ 5,317
Date of Acquisition/Construction	Nov. 30, 1983
Shopping Center [Member] | Gateway Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 4,812
Initial Cost to Company, Building and Improvements	19,249
Cost Capitalized Subsequent to Acquisition	5,637
Gross Amounts Carried at Close of Period, Land	4,808
Gross Amounts Carried at Close of Period, Building and Improvements	24,890
Gross Amounts Carried at Close of Period, Total	29,698
Accumulated Depreciation	(13,390)
Total Costs, Net of Accumulated Depreciation	16,308
Encumbrances	$ (23,000)
Date of Acquisition/Construction	Apr. 2, 2001
Shopping Center [Member] | Grayson Commons [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,180
Initial Cost to Company, Building and Improvements	9,023
Cost Capitalized Subsequent to Acquisition	686
Gross Amounts Carried at Close of Period, Land	3,163
Gross Amounts Carried at Close of Period, Building and Improvements	9,726
Gross Amounts Carried at Close of Period, Total	12,889
Accumulated Depreciation	(4,029)
Total Costs, Net of Accumulated Depreciation	8,860
Encumbrances	$ (3,440)
Date of Acquisition/Construction	Nov. 9, 2004
Shopping Center [Member] | Greenhouse Marketplace [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 4,607
Initial Cost to Company, Building and Improvements	22,771
Cost Capitalized Subsequent to Acquisition	4,935
Gross Amounts Carried at Close of Period, Land	4,750
Gross Amounts Carried at Close of Period, Building and Improvements	27,563
Gross Amounts Carried at Close of Period, Total	32,313
Accumulated Depreciation	(12,892)
Total Costs, Net of Accumulated Depreciation	$ 19,421
Date of Acquisition/Construction	Jan. 28, 2004
Shopping Center [Member] | Griggs Road Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 257
Initial Cost to Company, Building and Improvements	2,303
Cost Capitalized Subsequent to Acquisition	678
Gross Amounts Carried at Close of Period, Land	257
Gross Amounts Carried at Close of Period, Building and Improvements	2,981
Gross Amounts Carried at Close of Period, Total	3,238
Accumulated Depreciation	(2,123)
Total Costs, Net of Accumulated Depreciation	$ 1,115
Date of Acquisition/Construction	Mar. 20, 2008
Shopping Center [Member] | Harrisburg Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,278
Initial Cost to Company, Building and Improvements	3,924
Cost Capitalized Subsequent to Acquisition	1,409
Gross Amounts Carried at Close of Period, Land	1,278
Gross Amounts Carried at Close of Period, Building and Improvements	5,333
Gross Amounts Carried at Close of Period, Total	6,611
Accumulated Depreciation	(4,532)
Total Costs, Net of Accumulated Depreciation	2,079
Encumbrances	$ (9,318)
Date of Acquisition/Construction	Mar. 20, 2008
Shopping Center [Member] | HEB - Dairy Ashford & Memorial [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,717
Initial Cost to Company, Building and Improvements	4,234
Gross Amounts Carried at Close of Period, Land	1,717
Gross Amounts Carried at Close of Period, Building and Improvements	4,234
Gross Amounts Carried at Close of Period, Total	5,951
Accumulated Depreciation	(1,662)
Total Costs, Net of Accumulated Depreciation	$ 4,289
Date of Acquisition/Construction	Mar. 6, 2012
Shopping Center [Member] | Heights Plaza Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 58
Initial Cost to Company, Building and Improvements	699
Cost Capitalized Subsequent to Acquisition	2,633
Gross Amounts Carried at Close of Period, Land	1,055
Gross Amounts Carried at Close of Period, Building and Improvements	2,335
Gross Amounts Carried at Close of Period, Total	3,390
Accumulated Depreciation	(1,900)
Total Costs, Net of Accumulated Depreciation	$ 1,490
Date of Acquisition/Construction	Jun. 30, 1995
Shopping Center [Member] | High House Crossing [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,576
Initial Cost to Company, Building and Improvements	10,305
Cost Capitalized Subsequent to Acquisition	2,712
Gross Amounts Carried at Close of Period, Land	2,576
Gross Amounts Carried at Close of Period, Building and Improvements	13,017
Gross Amounts Carried at Close of Period, Total	15,593
Accumulated Depreciation	(5,348)
Total Costs, Net of Accumulated Depreciation	$ 10,245
Date of Acquisition/Construction	Apr. 4, 2002
Shopping Center [Member] | Highland Square [Member]
Real Estate and Accumulated Depreciation [Line Items]
Cost Capitalized Subsequent to Acquisition	$ 1,970
Gross Amounts Carried at Close of Period, Building and Improvements	1,970
Gross Amounts Carried at Close of Period, Total	1,970
Accumulated Depreciation	(762)
Total Costs, Net of Accumulated Depreciation	$ 1,208
Date of Acquisition/Construction	Oct. 6, 1959
Shopping Center [Member] | Hilltop Village Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,196
Initial Cost to Company, Building and Improvements	7,234
Cost Capitalized Subsequent to Acquisition	54,046
Gross Amounts Carried at Close of Period, Land	3,960
Gross Amounts Carried at Close of Period, Building and Improvements	60,516
Gross Amounts Carried at Close of Period, Total	64,476
Accumulated Depreciation	(28,818)
Total Costs, Net of Accumulated Depreciation	$ 35,658
Date of Acquisition/Construction	Jan. 1, 2016
Shopping Center [Member] | Hope Valley Commons [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,439
Initial Cost to Company, Building and Improvements	8,487
Cost Capitalized Subsequent to Acquisition	554
Gross Amounts Carried at Close of Period, Land	2,439
Gross Amounts Carried at Close of Period, Building and Improvements	9,041
Gross Amounts Carried at Close of Period, Total	11,480
Accumulated Depreciation	(2,661)
Total Costs, Net of Accumulated Depreciation	$ 8,819
Date of Acquisition/Construction	Aug. 31, 2010
Shopping Center [Member] | I45/Telephone Rd. [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 678
Initial Cost to Company, Building and Improvements	11,182
Cost Capitalized Subsequent to Acquisition	461
Gross Amounts Carried at Close of Period, Land	678
Gross Amounts Carried at Close of Period, Building and Improvements	11,643
Gross Amounts Carried at Close of Period, Total	12,321
Accumulated Depreciation	(7,316)
Total Costs, Net of Accumulated Depreciation	5,005
Encumbrances	$ (11,246)
Date of Acquisition/Construction	Mar. 20, 2008
Shopping Center [Member] | Independence Plaza I & II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 19,351
Initial Cost to Company, Building and Improvements	31,627
Cost Capitalized Subsequent to Acquisition	2,539
Gross Amounts Carried at Close of Period, Land	19,351
Gross Amounts Carried at Close of Period, Building and Improvements	34,166
Gross Amounts Carried at Close of Period, Total	53,517
Accumulated Depreciation	(11,919)
Total Costs, Net of Accumulated Depreciation	41,598
Encumbrances	$ (11,678)
Date of Acquisition/Construction	Jun. 11, 2013
Shopping Center [Member] | Kings Crossing [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,570
Initial Cost to Company, Building and Improvements	8,147
Cost Capitalized Subsequent to Acquisition	1,079
Gross Amounts Carried at Close of Period, Land	3,585
Gross Amounts Carried at Close of Period, Building and Improvements	9,211
Gross Amounts Carried at Close of Period, Total	12,796
Accumulated Depreciation	(6,264)
Total Costs, Net of Accumulated Depreciation	$ 6,532
Date of Acquisition/Construction	Nov. 13, 2008
Shopping Center [Member] | Lakeside Marketplace [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 6,064
Initial Cost to Company, Building and Improvements	22,989
Cost Capitalized Subsequent to Acquisition	6,117
Gross Amounts Carried at Close of Period, Land	6,150
Gross Amounts Carried at Close of Period, Building and Improvements	29,020
Gross Amounts Carried at Close of Period, Total	35,170
Accumulated Depreciation	(10,510)
Total Costs, Net of Accumulated Depreciation	$ 24,660
Date of Acquisition/Construction	Aug. 22, 2006
Shopping Center [Member] | Largo Mall [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 10,817
Initial Cost to Company, Building and Improvements	40,906
Cost Capitalized Subsequent to Acquisition	8,851
Gross Amounts Carried at Close of Period, Land	10,810
Gross Amounts Carried at Close of Period, Building and Improvements	49,764
Gross Amounts Carried at Close of Period, Total	60,574
Accumulated Depreciation	(22,591)
Total Costs, Net of Accumulated Depreciation	$ 37,983
Date of Acquisition/Construction	Mar. 1, 2004
Shopping Center [Member] | League City Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,918
Initial Cost to Company, Building and Improvements	7,592
Cost Capitalized Subsequent to Acquisition	4,794
Gross Amounts Carried at Close of Period, Land	2,261
Gross Amounts Carried at Close of Period, Building and Improvements	12,043
Gross Amounts Carried at Close of Period, Total	14,304
Accumulated Depreciation	(6,368)
Total Costs, Net of Accumulated Depreciation	$ 7,936
Date of Acquisition/Construction	Mar. 20, 2008
Shopping Center [Member] | Leesville Towne Centre [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 7,183
Initial Cost to Company, Building and Improvements	17,162
Cost Capitalized Subsequent to Acquisition	2,565
Gross Amounts Carried at Close of Period, Land	7,223
Gross Amounts Carried at Close of Period, Building and Improvements	19,687
Gross Amounts Carried at Close of Period, Total	26,910
Accumulated Depreciation	(8,544)
Total Costs, Net of Accumulated Depreciation	$ 18,366
Date of Acquisition/Construction	Jan. 30, 2004
Shopping Center [Member] | Lowry Town Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,889
Initial Cost to Company, Building and Improvements	23,165
Cost Capitalized Subsequent to Acquisition	1,084
Gross Amounts Carried at Close of Period, Land	1,889
Gross Amounts Carried at Close of Period, Building and Improvements	24,249
Gross Amounts Carried at Close of Period, Total	26,138
Accumulated Depreciation	(3,000)
Total Costs, Net of Accumulated Depreciation	$ 23,138
Date of Acquisition/Construction	Sep. 14, 2016
Shopping Center [Member] | Madera Village Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,788
Initial Cost to Company, Building and Improvements	13,507
Cost Capitalized Subsequent to Acquisition	1,655
Gross Amounts Carried at Close of Period, Land	3,816
Gross Amounts Carried at Close of Period, Building and Improvements	15,134
Gross Amounts Carried at Close of Period, Total	18,950
Accumulated Depreciation	(5,901)
Total Costs, Net of Accumulated Depreciation	$ 13,049
Date of Acquisition/Construction	Mar. 13, 2007
Shopping Center [Member] | Madison Village Marketplace [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,157
Initial Cost to Company, Building and Improvements	13,123
Cost Capitalized Subsequent to Acquisition	712
Gross Amounts Carried at Close of Period, Land	3,158
Gross Amounts Carried at Close of Period, Building and Improvements	13,834
Gross Amounts Carried at Close of Period, Total	16,992
Accumulated Depreciation	(724)
Total Costs, Net of Accumulated Depreciation	$ 16,268
Date of Acquisition/Construction	Mar. 28, 2019
Shopping Center [Member] | Mendenhall Commons [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,655
Initial Cost to Company, Building and Improvements	9,165
Cost Capitalized Subsequent to Acquisition	1,088
Gross Amounts Carried at Close of Period, Land	2,677
Gross Amounts Carried at Close of Period, Building and Improvements	10,231
Gross Amounts Carried at Close of Period, Total	12,908
Accumulated Depreciation	(4,288)
Total Costs, Net of Accumulated Depreciation	$ 8,620
Date of Acquisition/Construction	Nov. 13, 2008
Shopping Center [Member] | Monte Vista Village Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,485
Initial Cost to Company, Building and Improvements	58
Cost Capitalized Subsequent to Acquisition	5,898
Gross Amounts Carried at Close of Period, Land	755
Gross Amounts Carried at Close of Period, Building and Improvements	6,686
Gross Amounts Carried at Close of Period, Total	7,441
Accumulated Depreciation	(4,513)
Total Costs, Net of Accumulated Depreciation	$ 2,928
Date of Acquisition/Construction	Dec. 31, 2004
Shopping Center [Member] | Mueller Regional Retail Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 10,382
Initial Cost to Company, Building and Improvements	56,303
Cost Capitalized Subsequent to Acquisition	5,720
Gross Amounts Carried at Close of Period, Land	11,190
Gross Amounts Carried at Close of Period, Building and Improvements	61,215
Gross Amounts Carried at Close of Period, Total	72,405
Accumulated Depreciation	(18,838)
Total Costs, Net of Accumulated Depreciation	$ 53,567
Date of Acquisition/Construction	Oct. 3, 2013
Shopping Center [Member] | North Creek Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 6,915
Initial Cost to Company, Building and Improvements	25,625
Cost Capitalized Subsequent to Acquisition	8,105
Gross Amounts Carried at Close of Period, Land	7,617
Gross Amounts Carried at Close of Period, Building and Improvements	33,028
Gross Amounts Carried at Close of Period, Total	40,645
Accumulated Depreciation	(15,063)
Total Costs, Net of Accumulated Depreciation	$ 25,582
Date of Acquisition/Construction	Aug. 19, 2004
Shopping Center [Member] | North Towne Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 960
Initial Cost to Company, Building and Improvements	3,928
Cost Capitalized Subsequent to Acquisition	9,632
Gross Amounts Carried at Close of Period, Land	879
Gross Amounts Carried at Close of Period, Building and Improvements	13,641
Gross Amounts Carried at Close of Period, Total	14,520
Accumulated Depreciation	(10,031)
Total Costs, Net of Accumulated Depreciation	$ 4,489
Date of Acquisition/Construction	Feb. 15, 1990
Shopping Center [Member] | North Towne Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 6,646
Initial Cost to Company, Building and Improvements	99
Cost Capitalized Subsequent to Acquisition	(5,553)
Gross Amounts Carried at Close of Period, Land	259
Gross Amounts Carried at Close of Period, Building and Improvements	933
Gross Amounts Carried at Close of Period, Total	1,192
Accumulated Depreciation	(719)
Total Costs, Net of Accumulated Depreciation	$ 473
Date of Acquisition/Construction	Apr. 1, 2010
Shopping Center [Member] | Northwoods Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,768
Initial Cost to Company, Building and Improvements	7,071
Cost Capitalized Subsequent to Acquisition	768
Gross Amounts Carried at Close of Period, Land	1,772
Gross Amounts Carried at Close of Period, Building and Improvements	7,835
Gross Amounts Carried at Close of Period, Total	9,607
Accumulated Depreciation	(3,924)
Total Costs, Net of Accumulated Depreciation	$ 5,683
Date of Acquisition/Construction	Apr. 4, 2002
Shopping Center [Member] | Oak Forest Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 760
Initial Cost to Company, Building and Improvements	2,726
Cost Capitalized Subsequent to Acquisition	7,365
Gross Amounts Carried at Close of Period, Land	1,358
Gross Amounts Carried at Close of Period, Building and Improvements	9,493
Gross Amounts Carried at Close of Period, Total	10,851
Accumulated Depreciation	(7,161)
Total Costs, Net of Accumulated Depreciation	$ 3,690
Date of Acquisition/Construction	Dec. 30, 1976
Shopping Center [Member] | Oracle Wetmore Shopping [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 24,686
Initial Cost to Company, Building and Improvements	26,878
Cost Capitalized Subsequent to Acquisition	1,627
Gross Amounts Carried at Close of Period, Land	11,553
Gross Amounts Carried at Close of Period, Building and Improvements	41,638
Gross Amounts Carried at Close of Period, Total	53,191
Accumulated Depreciation	(18,111)
Total Costs, Net of Accumulated Depreciation	$ 35,080
Date of Acquisition/Construction	Jan. 22, 2007
Shopping Center [Member] | Perimeter Village [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 29,701
Initial Cost to Company, Building and Improvements	42,337
Cost Capitalized Subsequent to Acquisition	5,469
Gross Amounts Carried at Close of Period, Land	34,404
Gross Amounts Carried at Close of Period, Building and Improvements	43,103
Gross Amounts Carried at Close of Period, Total	77,507
Accumulated Depreciation	(18,094)
Total Costs, Net of Accumulated Depreciation	59,413
Encumbrances	$ (28,720)
Date of Acquisition/Construction	Jul. 3, 2007
Shopping Center [Member] | Phillips Crossing [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Building and Improvements	$ 1
Cost Capitalized Subsequent to Acquisition	28,473
Gross Amounts Carried at Close of Period, Land	872
Gross Amounts Carried at Close of Period, Building and Improvements	27,602
Gross Amounts Carried at Close of Period, Total	28,474
Accumulated Depreciation	(16,079)
Total Costs, Net of Accumulated Depreciation	$ 12,395
Date of Acquisition/Construction	Sep. 30, 2009
Shopping Center [Member] | Phoenix Office Building [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,696
Initial Cost to Company, Building and Improvements	3,255
Cost Capitalized Subsequent to Acquisition	1,737
Gross Amounts Carried at Close of Period, Land	1,773
Gross Amounts Carried at Close of Period, Building and Improvements	4,915
Gross Amounts Carried at Close of Period, Total	6,688
Accumulated Depreciation	(2,416)
Total Costs, Net of Accumulated Depreciation	$ 4,272
Date of Acquisition/Construction	Jan. 31, 2007
Shopping Center [Member] | Pike Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Building and Improvements	$ 40,537
Cost Capitalized Subsequent to Acquisition	3,461
Gross Amounts Carried at Close of Period, Building and Improvements	43,998
Gross Amounts Carried at Close of Period, Total	43,998
Accumulated Depreciation	(16,705)
Total Costs, Net of Accumulated Depreciation	$ 27,293
Date of Acquisition/Construction	Aug. 14, 2012
Shopping Center [Member] | Plantation Centre [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,463
Initial Cost to Company, Building and Improvements	14,821
Cost Capitalized Subsequent to Acquisition	2,427
Gross Amounts Carried at Close of Period, Land	3,471
Gross Amounts Carried at Close of Period, Building and Improvements	17,240
Gross Amounts Carried at Close of Period, Total	20,711
Accumulated Depreciation	(7,631)
Total Costs, Net of Accumulated Depreciation	$ 13,080
Date of Acquisition/Construction	Aug. 19, 2004
Shopping Center [Member] | Pueblo Anozira Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,750
Initial Cost to Company, Building and Improvements	11,000
Cost Capitalized Subsequent to Acquisition	5,858
Gross Amounts Carried at Close of Period, Land	2,768
Gross Amounts Carried at Close of Period, Building and Improvements	16,840
Gross Amounts Carried at Close of Period, Total	19,608
Accumulated Depreciation	(11,349)
Total Costs, Net of Accumulated Depreciation	8,259
Encumbrances	$ (13,170)
Date of Acquisition/Construction	Jun. 16, 1994
Shopping Center [Member] | Raintree Ranch Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 11,442
Initial Cost to Company, Building and Improvements	595
Cost Capitalized Subsequent to Acquisition	18,066
Gross Amounts Carried at Close of Period, Land	10,983
Gross Amounts Carried at Close of Period, Building and Improvements	19,120
Gross Amounts Carried at Close of Period, Total	30,103
Accumulated Depreciation	(12,690)
Total Costs, Net of Accumulated Depreciation	$ 17,413
Date of Acquisition/Construction	Mar. 31, 2008
Shopping Center [Member] | Rancho San Marcos Village [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,533
Initial Cost to Company, Building and Improvements	14,138
Cost Capitalized Subsequent to Acquisition	6,139
Gross Amounts Carried at Close of Period, Land	3,887
Gross Amounts Carried at Close of Period, Building and Improvements	19,923
Gross Amounts Carried at Close of Period, Total	23,810
Accumulated Depreciation	(9,531)
Total Costs, Net of Accumulated Depreciation	$ 14,279
Date of Acquisition/Construction	Feb. 26, 2003
Shopping Center [Member] | Rancho Towne and Country [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,161
Initial Cost to Company, Building and Improvements	4,647
Cost Capitalized Subsequent to Acquisition	842
Gross Amounts Carried at Close of Period, Land	1,166
Gross Amounts Carried at Close of Period, Building and Improvements	5,484
Gross Amounts Carried at Close of Period, Total	6,650
Accumulated Depreciation	(3,630)
Total Costs, Net of Accumulated Depreciation	$ 3,020
Date of Acquisition/Construction	Oct. 16, 1995
Shopping Center [Member] | Red Mountain Gateway [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,166
Initial Cost to Company, Building and Improvements	89
Cost Capitalized Subsequent to Acquisition	13,120
Gross Amounts Carried at Close of Period, Land	3,317
Gross Amounts Carried at Close of Period, Building and Improvements	12,058
Gross Amounts Carried at Close of Period, Total	15,375
Accumulated Depreciation	(6,178)
Total Costs, Net of Accumulated Depreciation	$ 9,197
Date of Acquisition/Construction	Dec. 31, 2003
Shopping Center [Member] | Richmond Square [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,993
Initial Cost to Company, Building and Improvements	953
Cost Capitalized Subsequent to Acquisition	12,948
Gross Amounts Carried at Close of Period, Land	13,903
Gross Amounts Carried at Close of Period, Building and Improvements	1,991
Gross Amounts Carried at Close of Period, Total	15,894
Accumulated Depreciation	(1,425)
Total Costs, Net of Accumulated Depreciation	$ 14,469
Date of Acquisition/Construction	Dec. 31, 1996
Shopping Center [Member] | Ridgeway Trace [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 26,629
Initial Cost to Company, Building and Improvements	544
Cost Capitalized Subsequent to Acquisition	26,386
Gross Amounts Carried at Close of Period, Land	16,100
Gross Amounts Carried at Close of Period, Building and Improvements	37,459
Gross Amounts Carried at Close of Period, Total	53,559
Accumulated Depreciation	(19,820)
Total Costs, Net of Accumulated Depreciation	$ 33,739
Date of Acquisition/Construction	Nov. 9, 2006
Shopping Center [Member] | River Oaks Shopping Center - East [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,354
Initial Cost to Company, Building and Improvements	1,946
Cost Capitalized Subsequent to Acquisition	471
Gross Amounts Carried at Close of Period, Land	1,363
Gross Amounts Carried at Close of Period, Building and Improvements	2,408
Gross Amounts Carried at Close of Period, Total	3,771
Accumulated Depreciation	(2,075)
Total Costs, Net of Accumulated Depreciation	$ 1,696
Date of Acquisition/Construction	Dec. 4, 1992
Shopping Center [Member] | River Oaks Shopping Center - West [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,320
Initial Cost to Company, Building and Improvements	17,741
Cost Capitalized Subsequent to Acquisition	35,955
Gross Amounts Carried at Close of Period, Land	3,993
Gross Amounts Carried at Close of Period, Building and Improvements	53,023
Gross Amounts Carried at Close of Period, Total	57,016
Accumulated Depreciation	(30,097)
Total Costs, Net of Accumulated Depreciation	$ 26,919
Date of Acquisition/Construction	Dec. 4, 1992
Shopping Center [Member] | River Point at Sheridan [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 28,898
Initial Cost to Company, Building and Improvements	4,042
Cost Capitalized Subsequent to Acquisition	29,855
Gross Amounts Carried at Close of Period, Land	11,848
Gross Amounts Carried at Close of Period, Building and Improvements	50,947
Gross Amounts Carried at Close of Period, Total	62,795
Accumulated Depreciation	(17,652)
Total Costs, Net of Accumulated Depreciation	$ 45,143
Date of Acquisition/Construction	Apr. 1, 2010
Shopping Center [Member] | Roswell Corners [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 6,136
Initial Cost to Company, Building and Improvements	21,447
Cost Capitalized Subsequent to Acquisition	7,321
Gross Amounts Carried at Close of Period, Land	7,103
Gross Amounts Carried at Close of Period, Building and Improvements	27,801
Gross Amounts Carried at Close of Period, Total	34,904
Accumulated Depreciation	(11,415)
Total Costs, Net of Accumulated Depreciation	$ 23,489
Date of Acquisition/Construction	Jun. 24, 2004
Shopping Center [Member] | Roswell Crossing Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 7,625
Initial Cost to Company, Building and Improvements	18,573
Cost Capitalized Subsequent to Acquisition	1,546
Gross Amounts Carried at Close of Period, Land	7,625
Gross Amounts Carried at Close of Period, Building and Improvements	20,119
Gross Amounts Carried at Close of Period, Total	27,744
Accumulated Depreciation	(7,839)
Total Costs, Net of Accumulated Depreciation	$ 19,905
Date of Acquisition/Construction	Jul. 18, 2012
Shopping Center [Member] | San Marcos Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,360
Initial Cost to Company, Building and Improvements	5,439
Cost Capitalized Subsequent to Acquisition	1,612
Gross Amounts Carried at Close of Period, Land	1,358
Gross Amounts Carried at Close of Period, Building and Improvements	7,053
Gross Amounts Carried at Close of Period, Total	8,411
Accumulated Depreciation	(3,370)
Total Costs, Net of Accumulated Depreciation	$ 5,041
Date of Acquisition/Construction	Apr. 2, 2001
Shopping Center [Member] | Scottsdale Horizon [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Building and Improvements	$ 3,241
Cost Capitalized Subsequent to Acquisition	39,902
Gross Amounts Carried at Close of Period, Land	12,914
Gross Amounts Carried at Close of Period, Building and Improvements	30,229
Gross Amounts Carried at Close of Period, Total	43,143
Accumulated Depreciation	(8,846)
Total Costs, Net of Accumulated Depreciation	$ 34,297
Date of Acquisition/Construction	Jan. 22, 2007
Shopping Center [Member] | Scottsdale Waterfront [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 10,281
Initial Cost to Company, Building and Improvements	40,374
Cost Capitalized Subsequent to Acquisition	2,495
Gross Amounts Carried at Close of Period, Land	21,586
Gross Amounts Carried at Close of Period, Building and Improvements	31,564
Gross Amounts Carried at Close of Period, Total	53,150
Accumulated Depreciation	(4,030)
Total Costs, Net of Accumulated Depreciation	$ 49,120
Date of Acquisition/Construction	Aug. 17, 2016
Shopping Center [Member] | Sea Ranch Centre [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 11,977
Initial Cost to Company, Building and Improvements	4,219
Cost Capitalized Subsequent to Acquisition	2,545
Gross Amounts Carried at Close of Period, Land	11,977
Gross Amounts Carried at Close of Period, Building and Improvements	6,764
Gross Amounts Carried at Close of Period, Total	18,741
Accumulated Depreciation	(2,581)
Total Costs, Net of Accumulated Depreciation	$ 16,160
Date of Acquisition/Construction	Mar. 6, 2013
Shopping Center [Member] | Shoppes at Bears Path [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,252
Initial Cost to Company, Building and Improvements	5,503
Cost Capitalized Subsequent to Acquisition	1,727
Gross Amounts Carried at Close of Period, Land	3,290
Gross Amounts Carried at Close of Period, Building and Improvements	7,192
Gross Amounts Carried at Close of Period, Total	10,482
Accumulated Depreciation	(2,924)
Total Costs, Net of Accumulated Depreciation	$ 7,558
Date of Acquisition/Construction	Mar. 13, 2007
Shopping Center [Member] | Shoppes at Memorial Villages [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,417
Initial Cost to Company, Building and Improvements	4,786
Cost Capitalized Subsequent to Acquisition	13,105
Gross Amounts Carried at Close of Period, Land	3,332
Gross Amounts Carried at Close of Period, Building and Improvements	15,976
Gross Amounts Carried at Close of Period, Total	19,308
Accumulated Depreciation	(9,812)
Total Costs, Net of Accumulated Depreciation	$ 9,496
Date of Acquisition/Construction	Jan. 11, 2012
Shopping Center [Member] | Shops at Kirby Drive [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 1,201
Initial Cost to Company, Building and Improvements	945
Cost Capitalized Subsequent to Acquisition	293
Gross Amounts Carried at Close of Period, Land	1,202
Gross Amounts Carried at Close of Period, Building and Improvements	1,237
Gross Amounts Carried at Close of Period, Total	2,439
Accumulated Depreciation	(567)
Total Costs, Net of Accumulated Depreciation	$ 1,872
Date of Acquisition/Construction	May 27, 2008
Shopping Center [Member] | Shops at Three Corners [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 6,215
Initial Cost to Company, Building and Improvements	9,303
Cost Capitalized Subsequent to Acquisition	11,488
Gross Amounts Carried at Close of Period, Land	10,587
Gross Amounts Carried at Close of Period, Building and Improvements	16,419
Gross Amounts Carried at Close of Period, Total	27,006
Accumulated Depreciation	(12,333)
Total Costs, Net of Accumulated Depreciation	$ 14,673
Date of Acquisition/Construction	Dec. 31, 1989
Shopping Center [Member] | Silver Creek Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,231
Initial Cost to Company, Building and Improvements	12,924
Cost Capitalized Subsequent to Acquisition	10,613
Gross Amounts Carried at Close of Period, Land	3,228
Gross Amounts Carried at Close of Period, Building and Improvements	23,540
Gross Amounts Carried at Close of Period, Total	26,768
Accumulated Depreciation	(9,551)
Total Costs, Net of Accumulated Depreciation	$ 17,217
Date of Acquisition/Construction	Apr. 2, 2001
Shopping Center [Member] | Six Forks Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 6,678
Initial Cost to Company, Building and Improvements	26,759
Cost Capitalized Subsequent to Acquisition	7,283
Gross Amounts Carried at Close of Period, Land	6,728
Gross Amounts Carried at Close of Period, Building and Improvements	33,992
Gross Amounts Carried at Close of Period, Total	40,720
Accumulated Depreciation	(17,632)
Total Costs, Net of Accumulated Depreciation	$ 23,088
Date of Acquisition/Construction	Apr. 4, 2002
Shopping Center [Member] | Southampton Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 4,337
Initial Cost to Company, Building and Improvements	17,349
Cost Capitalized Subsequent to Acquisition	3,372
Gross Amounts Carried at Close of Period, Land	4,333
Gross Amounts Carried at Close of Period, Building and Improvements	20,725
Gross Amounts Carried at Close of Period, Total	25,058
Accumulated Depreciation	(11,127)
Total Costs, Net of Accumulated Depreciation	13,931
Encumbrances	$ (19,750)
Date of Acquisition/Construction	Apr. 2, 2001
Shopping Center [Member] | Southgate Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 232
Initial Cost to Company, Building and Improvements	8,389
Cost Capitalized Subsequent to Acquisition	781
Gross Amounts Carried at Close of Period, Land	231
Gross Amounts Carried at Close of Period, Building and Improvements	9,171
Gross Amounts Carried at Close of Period, Total	9,402
Accumulated Depreciation	(6,326)
Total Costs, Net of Accumulated Depreciation	3,076
Encumbrances	$ (6,234)
Date of Acquisition/Construction	Mar. 20, 2008
Shopping Center [Member] | Squaw Peak Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 816
Initial Cost to Company, Building and Improvements	3,266
Cost Capitalized Subsequent to Acquisition	3,600
Gross Amounts Carried at Close of Period, Land	818
Gross Amounts Carried at Close of Period, Building and Improvements	6,864
Gross Amounts Carried at Close of Period, Total	7,682
Accumulated Depreciation	(4,608)
Total Costs, Net of Accumulated Depreciation	$ 3,074
Date of Acquisition/Construction	Dec. 20, 1994
Shopping Center [Member] | Stevens Creek Central [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 41,812
Initial Cost to Company, Building and Improvements	45,997
Cost Capitalized Subsequent to Acquisition	7,531
Gross Amounts Carried at Close of Period, Land	45,942
Gross Amounts Carried at Close of Period, Building and Improvements	49,398
Gross Amounts Carried at Close of Period, Total	95,340
Accumulated Depreciation	(1,586)
Total Costs, Net of Accumulated Depreciation	$ 93,754
Date of Acquisition/Construction	Nov. 8, 2019
Shopping Center [Member] | Stonehenge Market [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 4,740
Initial Cost to Company, Building and Improvements	19,001
Cost Capitalized Subsequent to Acquisition	4,020
Gross Amounts Carried at Close of Period, Land	4,740
Gross Amounts Carried at Close of Period, Building and Improvements	23,021
Gross Amounts Carried at Close of Period, Total	27,761
Accumulated Depreciation	(11,199)
Total Costs, Net of Accumulated Depreciation	$ 16,562
Date of Acquisition/Construction	Apr. 4, 2002
Shopping Center [Member] | Stony Point Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,489
Initial Cost to Company, Building and Improvements	13,957
Cost Capitalized Subsequent to Acquisition	11,492
Gross Amounts Carried at Close of Period, Land	3,453
Gross Amounts Carried at Close of Period, Building and Improvements	25,485
Gross Amounts Carried at Close of Period, Total	28,938
Accumulated Depreciation	(14,508)
Total Costs, Net of Accumulated Depreciation	$ 14,430
Date of Acquisition/Construction	Apr. 2, 2001
Shopping Center [Member] | Sunset 19 Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 5,519
Initial Cost to Company, Building and Improvements	22,076
Cost Capitalized Subsequent to Acquisition	26,440
Gross Amounts Carried at Close of Period, Land	5,996
Gross Amounts Carried at Close of Period, Building and Improvements	48,039
Gross Amounts Carried at Close of Period, Total	54,035
Accumulated Depreciation	(15,560)
Total Costs, Net of Accumulated Depreciation	$ 38,475
Date of Acquisition/Construction	Oct. 29, 2001
Shopping Center [Member] | The Centre at Post Oak [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 13,731
Initial Cost to Company, Building and Improvements	115
Cost Capitalized Subsequent to Acquisition	25,724
Gross Amounts Carried at Close of Period, Land	17,822
Gross Amounts Carried at Close of Period, Building and Improvements	21,748
Gross Amounts Carried at Close of Period, Total	39,570
Accumulated Depreciation	(15,690)
Total Costs, Net of Accumulated Depreciation	$ 23,880
Date of Acquisition/Construction	Dec. 31, 1996
Shopping Center [Member] | The Commons at Dexter Lake [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 4,946
Initial Cost to Company, Building and Improvements	18,948
Cost Capitalized Subsequent to Acquisition	5,130
Gross Amounts Carried at Close of Period, Land	4,988
Gross Amounts Carried at Close of Period, Building and Improvements	24,036
Gross Amounts Carried at Close of Period, Total	29,024
Accumulated Depreciation	(11,090)
Total Costs, Net of Accumulated Depreciation	$ 17,934
Date of Acquisition/Construction	Nov. 13, 2008
Shopping Center [Member] | The Palms at Town & Country [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 56,833
Initial Cost to Company, Building and Improvements	195,203
Cost Capitalized Subsequent to Acquisition	10,125
Gross Amounts Carried at Close of Period, Land	79,673
Gross Amounts Carried at Close of Period, Building and Improvements	182,488
Gross Amounts Carried at Close of Period, Total	262,161
Accumulated Depreciation	(26,868)
Total Costs, Net of Accumulated Depreciation	$ 235,293
Date of Acquisition/Construction	Jul. 27, 2016
Shopping Center [Member] | The Shops at Hilshire Village [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 12,929
Initial Cost to Company, Building and Improvements	20,666
Cost Capitalized Subsequent to Acquisition	2,356
Gross Amounts Carried at Close of Period, Land	13,959
Gross Amounts Carried at Close of Period, Building and Improvements	21,992
Gross Amounts Carried at Close of Period, Total	35,951
Accumulated Depreciation	(841)
Total Costs, Net of Accumulated Depreciation	$ 35,110
Date of Acquisition/Construction	Oct. 24, 2019
Shopping Center [Member] | The Whittaker [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 5,237
Initial Cost to Company, Building and Improvements	19,395
Cost Capitalized Subsequent to Acquisition	3,577
Gross Amounts Carried at Close of Period, Land	5,315
Gross Amounts Carried at Close of Period, Building and Improvements	22,894
Gross Amounts Carried at Close of Period, Total	28,209
Accumulated Depreciation	(2,053)
Total Costs, Net of Accumulated Depreciation	$ 26,156
Date of Acquisition/Construction	Jan. 1, 2019
Shopping Center [Member] | Thompson Bridge Commons [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 604
Cost Capitalized Subsequent to Acquisition	625
Gross Amounts Carried at Close of Period, Land	513
Gross Amounts Carried at Close of Period, Building and Improvements	716
Gross Amounts Carried at Close of Period, Total	1,229
Accumulated Depreciation	(183)
Total Costs, Net of Accumulated Depreciation	$ 1,046
Date of Acquisition/Construction	Apr. 26, 2005
Shopping Center [Member] | Thousand Oaks Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,973
Initial Cost to Company, Building and Improvements	13,142
Cost Capitalized Subsequent to Acquisition	1,335
Gross Amounts Carried at Close of Period, Land	2,973
Gross Amounts Carried at Close of Period, Building and Improvements	14,477
Gross Amounts Carried at Close of Period, Total	17,450
Accumulated Depreciation	(6,825)
Total Costs, Net of Accumulated Depreciation	10,625
Encumbrances	$ (11,378)
Date of Acquisition/Construction	Mar. 20, 2008
Shopping Center [Member] | TJ Maxx Plaza [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,400
Initial Cost to Company, Building and Improvements	19,283
Cost Capitalized Subsequent to Acquisition	4,380
Gross Amounts Carried at Close of Period, Land	3,430
Gross Amounts Carried at Close of Period, Building and Improvements	23,633
Gross Amounts Carried at Close of Period, Total	27,063
Accumulated Depreciation	(10,544)
Total Costs, Net of Accumulated Depreciation	$ 16,519
Date of Acquisition/Construction	Mar. 1, 2004
Shopping Center [Member] | Tomball Marketplace [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 9,616
Initial Cost to Company, Building and Improvements	262
Cost Capitalized Subsequent to Acquisition	26,873
Gross Amounts Carried at Close of Period, Land	6,726
Gross Amounts Carried at Close of Period, Building and Improvements	30,025
Gross Amounts Carried at Close of Period, Total	36,751
Accumulated Depreciation	(16,448)
Total Costs, Net of Accumulated Depreciation	$ 20,303
Date of Acquisition/Construction	Apr. 12, 2006
Shopping Center [Member] | Trenton Crossing [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 9,855
Initial Cost to Company, Building and Improvements	29,133
Cost Capitalized Subsequent to Acquisition	2,958
Gross Amounts Carried at Close of Period, Land	9,855
Gross Amounts Carried at Close of Period, Building and Improvements	32,091
Gross Amounts Carried at Close of Period, Total	41,946
Accumulated Depreciation	(5,445)
Total Costs, Net of Accumulated Depreciation	$ 36,501
Date of Acquisition/Construction	Aug. 31, 2015
Shopping Center [Member] | Valley Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 4,293
Initial Cost to Company, Building and Improvements	13,736
Cost Capitalized Subsequent to Acquisition	(504)
Gross Amounts Carried at Close of Period, Land	6,086
Gross Amounts Carried at Close of Period, Building and Improvements	11,439
Gross Amounts Carried at Close of Period, Total	17,525
Accumulated Depreciation	(4,860)
Total Costs, Net of Accumulated Depreciation	$ 12,665
Date of Acquisition/Construction	Apr. 7, 2006
Shopping Center [Member] | Village Green Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 8,717
Initial Cost to Company, Building and Improvements	18,694
Cost Capitalized Subsequent to Acquisition	27
Gross Amounts Carried at Close of Period, Land	8,716
Gross Amounts Carried at Close of Period, Building and Improvements	18,722
Gross Amounts Carried at Close of Period, Total	27,438
Accumulated Depreciation	(588)
Total Costs, Net of Accumulated Depreciation	26,850
Encumbrances	$ (17,719)
Date of Acquisition/Construction	Mar. 11, 2020
Shopping Center [Member] | Village Plaza at Bunker Hill [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 42,506
Initial Cost to Company, Building and Improvements	98,090
Gross Amounts Carried at Close of Period, Land	42,506
Gross Amounts Carried at Close of Period, Building and Improvements	98,090
Gross Amounts Carried at Close of Period, Total	140,596
Accumulated Depreciation	(122)
Total Costs, Net of Accumulated Depreciation	140,474
Encumbrances	$ (69,387)
Date of Acquisition/Construction	Dec. 11, 2020
Shopping Center [Member] | Vizcaya Square Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,044
Initial Cost to Company, Building and Improvements	12,226
Cost Capitalized Subsequent to Acquisition	2,641
Gross Amounts Carried at Close of Period, Land	3,044
Gross Amounts Carried at Close of Period, Building and Improvements	14,867
Gross Amounts Carried at Close of Period, Total	17,911
Accumulated Depreciation	(7,194)
Total Costs, Net of Accumulated Depreciation	$ 10,717
Date of Acquisition/Construction	Dec. 18, 2002
Shopping Center [Member] | Wellington Green Commons & Pad [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 16,500
Initial Cost to Company, Building and Improvements	32,489
Cost Capitalized Subsequent to Acquisition	3,489
Gross Amounts Carried at Close of Period, Land	16,500
Gross Amounts Carried at Close of Period, Building and Improvements	35,978
Gross Amounts Carried at Close of Period, Total	52,478
Accumulated Depreciation	(5,929)
Total Costs, Net of Accumulated Depreciation	46,549
Encumbrances	$ (16,678)
Date of Acquisition/Construction	Apr. 20, 2015
Shopping Center [Member] | Westchase Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 3,085
Initial Cost to Company, Building and Improvements	7,920
Cost Capitalized Subsequent to Acquisition	13,941
Gross Amounts Carried at Close of Period, Land	3,189
Gross Amounts Carried at Close of Period, Building and Improvements	21,757
Gross Amounts Carried at Close of Period, Total	24,946
Accumulated Depreciation	(15,234)
Total Costs, Net of Accumulated Depreciation	9,712
Encumbrances	$ (15,057)
Date of Acquisition/Construction	Aug. 29, 1978
Shopping Center [Member] | Westhill Village Shopping Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 408
Initial Cost to Company, Building and Improvements	3,002
Cost Capitalized Subsequent to Acquisition	7,106
Gross Amounts Carried at Close of Period, Land	437
Gross Amounts Carried at Close of Period, Building and Improvements	10,079
Gross Amounts Carried at Close of Period, Total	10,516
Accumulated Depreciation	(6,590)
Total Costs, Net of Accumulated Depreciation	$ 3,926
Date of Acquisition/Construction	May 1, 1958
Shopping Center [Member] | Westminster Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 11,215
Initial Cost to Company, Building and Improvements	44,871
Cost Capitalized Subsequent to Acquisition	10,161
Gross Amounts Carried at Close of Period, Land	11,204
Gross Amounts Carried at Close of Period, Building and Improvements	55,043
Gross Amounts Carried at Close of Period, Total	66,247
Accumulated Depreciation	(29,249)
Total Costs, Net of Accumulated Depreciation	36,998
Encumbrances	$ (47,250)
Date of Acquisition/Construction	Apr. 2, 2001
Shopping Center [Member] | Winter Park Corners [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 2,159
Initial Cost to Company, Building and Improvements	8,636
Cost Capitalized Subsequent to Acquisition	15,509
Gross Amounts Carried at Close of Period, Land	2,257
Gross Amounts Carried at Close of Period, Building and Improvements	24,047
Gross Amounts Carried at Close of Period, Total	26,304
Accumulated Depreciation	(6,666)
Total Costs, Net of Accumulated Depreciation	$ 19,638
Date of Acquisition/Construction	Sep. 6, 2001
New Development/Redevelopment [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 39,243
Initial Cost to Company, Building and Improvements	2,669
Cost Capitalized Subsequent to Acquisition	275,546
Gross Amounts Carried at Close of Period, Land	44,957
Gross Amounts Carried at Close of Period, Building and Improvements	272,501
Gross Amounts Carried at Close of Period, Total	317,458
Accumulated Depreciation	(10,415)
Total Costs, Net of Accumulated Depreciation	307,043
New Development/Redevelopment [Member] | West Alex [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	39,029
Initial Cost to Company, Building and Improvements	2,669
Cost Capitalized Subsequent to Acquisition	149,419
Gross Amounts Carried at Close of Period, Land	42,448
Gross Amounts Carried at Close of Period, Building and Improvements	148,669
Gross Amounts Carried at Close of Period, Total	191,117
Accumulated Depreciation	(9,417)
Total Costs, Net of Accumulated Depreciation	$ 181,700
Date of Acquisition/Construction	Nov. 1, 2016
New Development/Redevelopment [Member] | The Driscoll at River Oaks [Member]
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost to Company, Land	$ 214
Cost Capitalized Subsequent to Acquisition	126,127
Gross Amounts Carried at Close of Period, Land	2,509
Gross Amounts Carried at Close of Period, Building and Improvements	123,832
Gross Amounts Carried at Close of Period, Total	126,341
Accumulated Depreciation	(998)
Total Costs, Net of Accumulated Depreciation	$ 125,343
Date of Acquisition/Construction	Dec. 4, 1992
Secured Debt [Member]
Real Estate and Accumulated Depreciation [Line Items]
Non-cash debt	$ 5,300
Deferred finance costs, net	$ (800)

Real Estate And Accumulated D_3

Real Estate And Accumulated Depreciation (Total Cost Of The Properties) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]
Balance at beginning of year	$ 4,145,249	$ 4,105,068	$ 4,498,859
Additions at cost	311,789	389,858	164,150
Retirements or sales	(186,551)	(349,603)	(547,821)
Impairment loss	(24,153)	(74)	(10,120)
Balance at end of year	$ 4,246,334	$ 4,145,249	$ 4,105,068

Real Estate And Accumulated D_4

Real Estate And Accumulated Depreciation (Changes In Accumulated Depreciation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]
Balance at beginning of year	$ 1,110,675	$ 1,108,188	$ 1,166,126
Additions at cost	119,948	109,825	118,664
Retirements or sales	(68,653)	(107,338)	(176,602)
Balance at end of year	$ 1,161,970	$ 1,110,675	$ 1,108,188

Mortgage Loans On Real Estate (

Mortgage Loans On Real Estate (Details) $ in Thousands	2 Months Ended	12 Months Ended
	Feb. 26, 2021Center	Dec. 31, 2020USD ($)propertyloan
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Number of properties sold	1	7
First Mortgages [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Face Amount of Mortgages		$ 23,340
Carrying Amount of Mortgages		23,340
Aggregate cost for federal income tax purposes		23,300
Prior leins		$ 0
Number of mortgage loans issued | loan		2
Number of properties sold | property		2
College Park Realty Company [Member] | First Mortgages [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate		7.00%
Final Maturity Date		Oct. 31, 2053
Periodic Payment Terms		At Maturity
Face Amount of Mortgages		$ 3,410
Carrying Amount of Mortgages		$ 3,410
West Jordan Retail Associate, LLC [Member] | First Mortgages [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate		4.00%
Final Maturity Date		Aug. 1, 2021
Periodic Payment Terms		At Maturity
Face Amount of Mortgages		$ 9,930
Carrying Amount of Mortgages		$ 9,930
Galleria 1848 LLC [Member] | First Mortgages [Member]
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate		5.00%
Final Maturity Date		Dec. 31, 2021
Periodic Payment Terms		At Maturity
Face Amount of Mortgages		$ 10,000
Carrying Amount of Mortgages		$ 10,000