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Real Estate And Accumulated Depreciation (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,015,879      
Initial Cost to Company, Building and Improvements 2,135,655      
Cost Capitalized Subsequent to Acquisition 953,534      
Gross Amounts Carried at Close of Period, Land 1,020,704      
Gross Amounts Carried at Close of Period, Building and Improvements 3,084,364      
Gross Amounts Carried at Close of Period, Total 4,105,068 $ 4,498,859 $ 4,789,145 $ 4,262,959
Accumulated Depreciation (1,108,188) (1,166,126) $ (1,184,546) $ (1,087,642)
Total Costs, Net of Accumulated Depreciation 2,996,880      
Encumbrances (318,768)      
Fixed assets book value in excess of (less than) tax basis 211,000 $ 193,400    
Non-cash debt 1,800      
Deferred finance costs $ (6,900)      
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 $ 107,524      
Initial Cost to Company, Building and Improvements 3,102      
Cost Capitalized Subsequent to Acquisition 29,277      
Gross Amounts Carried at Close of Period, Land 65,837      
Gross Amounts Carried at Close of Period, Building and Improvements 74,066      
Gross Amounts Carried at Close of Period, Total 139,903      
Accumulated Depreciation (33,568)      
Total Costs, Net of Accumulated Depreciation 106,335      
Encumbrances 0      
Centers [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land 860,955      
Initial Cost to Company, Building and Improvements 2,110,489      
Cost Capitalized Subsequent to Acquisition 843,079      
Gross Amounts Carried at Close of Period, Land 903,039      
Gross Amounts Carried at Close of Period, Building and Improvements 2,911,484      
Gross Amounts Carried at Close of Period, Total 3,814,523      
Accumulated Depreciation (1,074,051)      
Total Costs, Net of Accumulated Depreciation 2,740,472      
Encumbrances (318,768)      
Centers [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 1,285      
Gross Amounts Carried at Close of Period, Land 1,791      
Gross Amounts Carried at Close of Period, Building and Improvements 8,755      
Gross Amounts Carried at Close of Period, Total 10,546      
Accumulated Depreciation (7,572)      
Total Costs, Net of Accumulated Depreciation 2,974      
Encumbrances $ (6,302)      
Date of Acquisition/Construction Mar. 20, 2008      
Centers [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 3,949      
Gross Amounts Carried at Close of Period, Land 3,889      
Gross Amounts Carried at Close of Period, Building and Improvements 19,522      
Gross Amounts Carried at Close of Period, Total 23,411      
Accumulated Depreciation (9,164)      
Total Costs, Net of Accumulated Depreciation 14,247      
Encumbrances $ (14,939)      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [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 7,853      
Gross Amounts Carried at Close of Period, Land 18,320      
Gross Amounts Carried at Close of Period, Building and Improvements 81,284      
Gross Amounts Carried at Close of Period, Total 99,604      
Accumulated Depreciation (16,428)      
Total Costs, Net of Accumulated Depreciation 83,176      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 27, 2012      
Centers [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 8,127      
Gross Amounts Carried at Close of Period, Land 1,062      
Gross Amounts Carried at Close of Period, Building and Improvements 9,728      
Gross Amounts Carried at Close of Period, Total 10,790      
Accumulated Depreciation (5,802)      
Total Costs, Net of Accumulated Depreciation 4,988      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 30, 2004      
Centers [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 5,674      
Gross Amounts Carried at Close of Period, Land 4,526      
Gross Amounts Carried at Close of Period, Building and Improvements 23,775      
Gross Amounts Carried at Close of Period, Total 28,301      
Accumulated Depreciation (10,914)      
Total Costs, Net of Accumulated Depreciation 17,387      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 30, 2001      
Centers [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 1,355      
Gross Amounts Carried at Close of Period, Land 1,952      
Gross Amounts Carried at Close of Period, Building and Improvements 9,169      
Gross Amounts Carried at Close of Period, Total 11,121      
Accumulated Depreciation (4,079)      
Total Costs, Net of Accumulated Depreciation 7,042      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 04, 2002      
Centers [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 4,712      
Gross Amounts Carried at Close of Period, Land 10,623      
Gross Amounts Carried at Close of Period, Building and Improvements 35,019      
Gross Amounts Carried at Close of Period, Total 45,642      
Accumulated Depreciation (4,795)      
Total Costs, Net of Accumulated Depreciation 40,847      
Encumbrances $ 0      
Date of Acquisition/Construction Feb. 04, 2015      
Centers [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 936      
Gross Amounts Carried at Close of Period, Land 1,011      
Gross Amounts Carried at Close of Period, Building and Improvements 86      
Gross Amounts Carried at Close of Period, Total 1,097      
Accumulated Depreciation (43)      
Total Costs, Net of Accumulated Depreciation 1,054      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 13, 2008      
Centers [Member] | Blalock Market At I-10 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 0      
Initial Cost to Company, Building and Improvements 4,730      
Cost Capitalized Subsequent to Acquisition 2,075      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 6,805      
Gross Amounts Carried at Close of Period, Total 6,805      
Accumulated Depreciation (5,466)      
Total Costs, Net of Accumulated Depreciation 1,339      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 1990      
Centers [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 5,724      
Gross Amounts Carried at Close of Period, Land 3,651      
Gross Amounts Carried at Close of Period, Building and Improvements 20,455      
Gross Amounts Carried at Close of Period, Total 24,106      
Accumulated Depreciation (8,567)      
Total Costs, Net of Accumulated Depreciation 15,539      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 17, 2001      
Centers [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 2,170      
Gross Amounts Carried at Close of Period, Land 906      
Gross Amounts Carried at Close of Period, Building and Improvements 5,799      
Gross Amounts Carried at Close of Period, Total 6,705      
Accumulated Depreciation (3,677)      
Total Costs, Net of Accumulated Depreciation 3,028      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 16, 1993      
Centers [Member] | Brookwood Marketplace [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 7,050      
Initial Cost to Company, Building and Improvements 15,134      
Cost Capitalized Subsequent to Acquisition 7,354      
Gross Amounts Carried at Close of Period, Land 7,511      
Gross Amounts Carried at Close of Period, Building and Improvements 22,027      
Gross Amounts Carried at Close of Period, Total 29,538      
Accumulated Depreciation (6,899)      
Total Costs, Net of Accumulated Depreciation 22,639      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 22, 2006      
Centers [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 583      
Gross Amounts Carried at Close of Period, Land 1,333      
Gross Amounts Carried at Close of Period, Building and Improvements 6,119      
Gross Amounts Carried at Close of Period, Total 7,452      
Accumulated Depreciation (2,006)      
Total Costs, Net of Accumulated Depreciation 5,446      
Encumbrances $ 0      
Date of Acquisition/Construction May 22, 2006      
Centers [Member] | Bull City Market [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 930      
Initial Cost to Company, Building and Improvements 6,651      
Cost Capitalized Subsequent to Acquisition 898      
Gross Amounts Carried at Close of Period, Land 930      
Gross Amounts Carried at Close of Period, Building and Improvements 7,549      
Gross Amounts Carried at Close of Period, Total 8,479      
Accumulated Depreciation (2,657)      
Total Costs, Net of Accumulated Depreciation 5,822      
Encumbrances $ (3,325)      
Date of Acquisition/Construction Jun. 10, 2005      
Centers [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 115      
Gross Amounts Carried at Close of Period, Land 48,851      
Gross Amounts Carried at Close of Period, Building and Improvements 1,156      
Gross Amounts Carried at Close of Period, Total 50,007      
Accumulated Depreciation (966)      
Total Costs, Net of Accumulated Depreciation 49,041      
Encumbrances $ 0      
Date of Acquisition/Construction Feb. 27, 2015      
Centers [Member] | Camelback Village Square [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 0      
Initial Cost to Company, Building and Improvements 8,720      
Cost Capitalized Subsequent to Acquisition 1,360      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 10,080      
Gross Amounts Carried at Close of Period, Total 10,080      
Accumulated Depreciation (6,183)      
Total Costs, Net of Accumulated Depreciation 3,897      
Encumbrances $ 0      
Date of Acquisition/Construction Sep. 30, 1994      
Centers [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 3,402      
Gross Amounts Carried at Close of Period, Land 4,697      
Gross Amounts Carried at Close of Period, Building and Improvements 36,910      
Gross Amounts Carried at Close of Period, Total 41,607      
Accumulated Depreciation (11,276)      
Total Costs, Net of Accumulated Depreciation 30,331      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 22, 2006      
Centers [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 1,543      
Gross Amounts Carried at Close of Period, Land 1,852      
Gross Amounts Carried at Close of Period, Building and Improvements 8,949      
Gross Amounts Carried at Close of Period, Total 10,801      
Accumulated Depreciation (4,433)      
Total Costs, Net of Accumulated Depreciation 6,368      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 04, 2002      
Centers [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 3,552      
Gross Amounts Carried at Close of Period, Land 914      
Gross Amounts Carried at Close of Period, Building and Improvements 7,212      
Gross Amounts Carried at Close of Period, Total 8,126      
Accumulated Depreciation (3,310)      
Total Costs, Net of Accumulated Depreciation 4,816      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [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 3,604      
Gross Amounts Carried at Close of Period, Land 23,210      
Gross Amounts Carried at Close of Period, Building and Improvements 40,501      
Gross Amounts Carried at Close of Period, Total 63,711      
Accumulated Depreciation (13,221)      
Total Costs, Net of Accumulated Depreciation 50,490      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 20, 2006      
Centers [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 12,949      
Gross Amounts Carried at Close of Period, Land 7,234      
Gross Amounts Carried at Close of Period, Building and Improvements 41,805      
Gross Amounts Carried at Close of Period, Total 49,039      
Accumulated Depreciation (22,076)      
Total Costs, Net of Accumulated Depreciation 26,963      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 20, 2002      
Centers [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 9,000      
Gross Amounts Carried at Close of Period, Land 534      
Gross Amounts Carried at Close of Period, Building and Improvements 17,870      
Gross Amounts Carried at Close of Period, Total 18,404      
Accumulated Depreciation (14,929)      
Total Costs, Net of Accumulated Depreciation 3,475      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 30, 1975      
Centers [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 7,267      
Gross Amounts Carried at Close of Period, Land 2,641      
Gross Amounts Carried at Close of Period, Building and Improvements 15,672      
Gross Amounts Carried at Close of Period, Total 18,313      
Accumulated Depreciation (12,047)      
Total Costs, Net of Accumulated Depreciation 6,266      
Encumbrances $ (11,475)      
Date of Acquisition/Construction Nov. 16, 1998      
Centers [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 16,010      
Gross Amounts Carried at Close of Period, Land 10,813      
Gross Amounts Carried at Close of Period, Building and Improvements 59,237      
Gross Amounts Carried at Close of Period, Total 70,050      
Accumulated Depreciation (31,238)      
Total Costs, Net of Accumulated Depreciation 38,812      
Encumbrances $ 0      
Date of Acquisition/Construction Feb. 21, 2001      
Centers [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 10,502      
Gross Amounts Carried at Close of Period, Land 15,559      
Gross Amounts Carried at Close of Period, Building and Improvements 40,284      
Gross Amounts Carried at Close of Period, Total 55,843      
Accumulated Depreciation (15,032)      
Total Costs, Net of Accumulated Depreciation 40,811      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 06, 2007      
Centers [Member] | Creekside Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,732      
Initial Cost to Company, Building and Improvements 6,929      
Cost Capitalized Subsequent to Acquisition 2,790      
Gross Amounts Carried at Close of Period, Land 1,730      
Gross Amounts Carried at Close of Period, Building and Improvements 9,721      
Gross Amounts Carried at Close of Period, Total 11,451      
Accumulated Depreciation (4,853)      
Total Costs, Net of Accumulated Depreciation 6,598      
Encumbrances $ (7,189)      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [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 325      
Gross Amounts Carried at Close of Period, Land 6,400      
Gross Amounts Carried at Close of Period, Building and Improvements 23,709      
Gross Amounts Carried at Close of Period, Total 30,109      
Accumulated Depreciation (2,073)      
Total Costs, Net of Accumulated Depreciation 28,036      
Encumbrances $ (13,953)      
Date of Acquisition/Construction Feb. 12, 2016      
Centers [Member] | Cypress Pointe [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 3,468      
Initial Cost to Company, Building and Improvements 8,700      
Cost Capitalized Subsequent to Acquisition 1,239      
Gross Amounts Carried at Close of Period, Land 3,793      
Gross Amounts Carried at Close of Period, Building and Improvements 9,614      
Gross Amounts Carried at Close of Period, Total 13,407      
Accumulated Depreciation (6,684)      
Total Costs, Net of Accumulated Depreciation 6,723      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 04, 2002      
Centers [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 4,929      
Gross Amounts Carried at Close of Period, Land 27,806      
Gross Amounts Carried at Close of Period, Building and Improvements 81,966      
Gross Amounts Carried at Close of Period, Total 109,772      
Accumulated Depreciation (7,313)      
Total Costs, Net of Accumulated Depreciation 102,459      
Encumbrances $ 0      
Date of Acquisition/Construction May 05, 2016      
Centers [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 2,253      
Gross Amounts Carried at Close of Period, Land 3,362      
Gross Amounts Carried at Close of Period, Building and Improvements 17,222      
Gross Amounts Carried at Close of Period, Total 20,584      
Accumulated Depreciation (4,118)      
Total Costs, Net of Accumulated Depreciation 16,466      
Encumbrances $ 0      
Date of Acquisition/Construction Oct. 28, 2010      
Centers [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 691      
Gross Amounts Carried at Close of Period, Land 4,821      
Gross Amounts Carried at Close of Period, Building and Improvements 11,916      
Gross Amounts Carried at Close of Period, Total 16,737      
Accumulated Depreciation (3,039)      
Total Costs, Net of Accumulated Depreciation 13,698      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 19, 2010      
Centers [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 4,919      
Gross Amounts Carried at Close of Period, Land 4,429      
Gross Amounts Carried at Close of Period, Building and Improvements 25,478      
Gross Amounts Carried at Close of Period, Total 29,907      
Accumulated Depreciation (10,927)      
Total Costs, Net of Accumulated Depreciation 18,980      
Encumbrances $ 0      
Date of Acquisition/Construction May 21, 2004      
Centers [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 2,433      
Gross Amounts Carried at Close of Period, Land 2,803      
Gross Amounts Carried at Close of Period, Building and Improvements 13,701      
Gross Amounts Carried at Close of Period, Total 16,504      
Accumulated Depreciation (5,560)      
Total Costs, Net of Accumulated Depreciation 10,944      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 18, 2002      
Centers [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 2,144      
Gross Amounts Carried at Close of Period, Land 6,115      
Gross Amounts Carried at Close of Period, Building and Improvements 12,581      
Gross Amounts Carried at Close of Period, Total 18,696      
Accumulated Depreciation (4,724)      
Total Costs, Net of Accumulated Depreciation 13,972      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 22, 2007      
Centers [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 4,092      
Gross Amounts Carried at Close of Period, Land 320      
Gross Amounts Carried at Close of Period, Building and Improvements 5,226      
Gross Amounts Carried at Close of Period, Total 5,546      
Accumulated Depreciation (3,826)      
Total Costs, Net of Accumulated Depreciation 1,720      
Encumbrances $ 0      
Date of Acquisition/Construction Sep. 30, 2009      
Centers [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 1,482      
Gross Amounts Carried at Close of Period, Land 3,542      
Gross Amounts Carried at Close of Period, Building and Improvements 15,764      
Gross Amounts Carried at Close of Period, Total 19,306      
Accumulated Depreciation (6,319)      
Total Costs, Net of Accumulated Depreciation 12,987      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 17, 2002      
Centers [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 4,069      
Gross Amounts Carried at Close of Period, Land 5,022      
Gross Amounts Carried at Close of Period, Building and Improvements 18,071      
Gross Amounts Carried at Close of Period, Total 23,093      
Accumulated Depreciation (7,599)      
Total Costs, Net of Accumulated Depreciation 15,494      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 22, 2004      
Centers [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 11,811      
Gross Amounts Carried at Close of Period, Land 11,267      
Gross Amounts Carried at Close of Period, Building and Improvements 42,159      
Gross Amounts Carried at Close of Period, Total 53,426      
Accumulated Depreciation (15,862)      
Total Costs, Net of Accumulated Depreciation 37,564      
Encumbrances $ 0      
Date of Acquisition/Construction Sep. 30, 2003      
Centers [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 1,918      
Gross Amounts Carried at Close of Period, Land 1,095      
Gross Amounts Carried at Close of Period, Building and Improvements 7,418      
Gross Amounts Carried at Close of Period, Total 8,513      
Accumulated Depreciation (4,761)      
Total Costs, Net of Accumulated Depreciation 3,752      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 10, 1994      
Centers [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 4,373      
Gross Amounts Carried at Close of Period, Land 2,403      
Gross Amounts Carried at Close of Period, Building and Improvements 11,966      
Gross Amounts Carried at Close of Period, Total 14,369      
Accumulated Depreciation (8,662)      
Total Costs, Net of Accumulated Depreciation 5,707      
Encumbrances $ (10,423)      
Date of Acquisition/Construction Nov. 16, 1998      
Centers [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 6,037      
Gross Amounts Carried at Close of Period, Land 6,944      
Gross Amounts Carried at Close of Period, Building and Improvements 17,324      
Gross Amounts Carried at Close of Period, Total 24,268      
Accumulated Depreciation (7,328)      
Total Costs, Net of Accumulated Depreciation 16,940      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 23, 2006      
Centers [Member] | Galleria Shopping Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 10,795      
Initial Cost to Company, Building and Improvements 10,339      
Cost Capitalized Subsequent to Acquisition 8,778      
Gross Amounts Carried at Close of Period, Land 10,504      
Gross Amounts Carried at Close of Period, Building and Improvements 19,408      
Gross Amounts Carried at Close of Period, Total 29,912      
Accumulated Depreciation (6,074)      
Total Costs, Net of Accumulated Depreciation 23,838      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 11, 2006      
Centers [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 5,957      
Gross Amounts Carried at Close of Period, Land 3,279      
Gross Amounts Carried at Close of Period, Building and Improvements 10,913      
Gross Amounts Carried at Close of Period, Total 14,192      
Accumulated Depreciation (8,888)      
Total Costs, Net of Accumulated Depreciation 5,304      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 30, 1983      
Centers [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 5,481      
Gross Amounts Carried at Close of Period, Land 4,808      
Gross Amounts Carried at Close of Period, Building and Improvements 24,734      
Gross Amounts Carried at Close of Period, Total 29,542      
Accumulated Depreciation (11,531)      
Total Costs, Net of Accumulated Depreciation 18,011      
Encumbrances $ (23,000)      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [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 617      
Gross Amounts Carried at Close of Period, Land 3,163      
Gross Amounts Carried at Close of Period, Building and Improvements 9,657      
Gross Amounts Carried at Close of Period, Total 12,820      
Accumulated Depreciation (3,456)      
Total Costs, Net of Accumulated Depreciation 9,364      
Encumbrances $ (4,248)      
Date of Acquisition/Construction Nov. 09, 2004      
Centers [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 4,214      
Gross Amounts Carried at Close of Period, Land 4,750      
Gross Amounts Carried at Close of Period, Building and Improvements 26,842      
Gross Amounts Carried at Close of Period, Total 31,592      
Accumulated Depreciation (11,047)      
Total Costs, Net of Accumulated Depreciation 20,545      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 28, 2004      
Centers [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 378      
Gross Amounts Carried at Close of Period, Land 257      
Gross Amounts Carried at Close of Period, Building and Improvements 2,681      
Gross Amounts Carried at Close of Period, Total 2,938      
Accumulated Depreciation (1,841)      
Total Costs, Net of Accumulated Depreciation 1,097      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 20, 2008      
Centers [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 1,165      
Gross Amounts Carried at Close of Period, Land 1,278      
Gross Amounts Carried at Close of Period, Building and Improvements 5,089      
Gross Amounts Carried at Close of Period, Total 6,367      
Accumulated Depreciation (4,350)      
Total Costs, Net of Accumulated Depreciation 2,017      
Encumbrances $ (9,667)      
Date of Acquisition/Construction Mar. 20, 2008      
Centers [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      
Cost Capitalized Subsequent to Acquisition 0      
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 (1,286)      
Total Costs, Net of Accumulated Depreciation 4,665      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 06, 2012      
Centers [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 2,604      
Gross Amounts Carried at Close of Period, Land 1,055      
Gross Amounts Carried at Close of Period, Building and Improvements 2,306      
Gross Amounts Carried at Close of Period, Total 3,361      
Accumulated Depreciation (1,724)      
Total Costs, Net of Accumulated Depreciation 1,637      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 30, 1995      
Centers [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 582      
Gross Amounts Carried at Close of Period, Land 2,576      
Gross Amounts Carried at Close of Period, Building and Improvements 10,887      
Gross Amounts Carried at Close of Period, Total 13,463      
Accumulated Depreciation (4,768)      
Total Costs, Net of Accumulated Depreciation 8,695      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 04, 2002      
Centers [Member] | Highland Square [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 0      
Initial Cost to Company, Building and Improvements 0      
Cost Capitalized Subsequent to Acquisition 1,960      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 1,960      
Gross Amounts Carried at Close of Period, Total 1,960      
Accumulated Depreciation (655)      
Total Costs, Net of Accumulated Depreciation 1,305      
Encumbrances $ 0      
Date of Acquisition/Construction Oct. 06, 1959      
Centers [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 53,854      
Gross Amounts Carried at Close of Period, Land 3,960      
Gross Amounts Carried at Close of Period, Building and Improvements 60,324      
Gross Amounts Carried at Close of Period, Total 64,284      
Accumulated Depreciation (18,649)      
Total Costs, Net of Accumulated Depreciation 45,635      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 01, 2016      
Centers [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 483      
Gross Amounts Carried at Close of Period, Land 2,439      
Gross Amounts Carried at Close of Period, Building and Improvements 8,970      
Gross Amounts Carried at Close of Period, Total 11,409      
Accumulated Depreciation (2,149)      
Total Costs, Net of Accumulated Depreciation 9,260      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 31, 2010      
Centers [Member] | I45 And Telephone Road [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 533      
Gross Amounts Carried at Close of Period, Land 678      
Gross Amounts Carried at Close of Period, Building and Improvements 11,715      
Gross Amounts Carried at Close of Period, Total 12,393      
Accumulated Depreciation (6,853)      
Total Costs, Net of Accumulated Depreciation 5,540      
Encumbrances $ (11,667)      
Date of Acquisition/Construction Mar. 20, 2008      
Centers [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 2,497      
Gross Amounts Carried at Close of Period, Land 19,351      
Gross Amounts Carried at Close of Period, Building and Improvements 34,124      
Gross Amounts Carried at Close of Period, Total 53,475      
Accumulated Depreciation (8,697)      
Total Costs, Net of Accumulated Depreciation 44,778      
Encumbrances $ (14,090)      
Date of Acquisition/Construction Jun. 11, 2013      
Centers [Member] | Jess Ranch Marketplace [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 8,750      
Initial Cost to Company, Building and Improvements 25,560      
Cost Capitalized Subsequent to Acquisition 667      
Gross Amounts Carried at Close of Period, Land 8,750      
Gross Amounts Carried at Close of Period, Building and Improvements 26,227      
Gross Amounts Carried at Close of Period, Total 34,977      
Accumulated Depreciation (6,024)      
Total Costs, Net of Accumulated Depreciation 28,953      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 23, 2013      
Centers [Member] | Jess Ranch Mktpl Phase III [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 8,431      
Initial Cost to Company, Building and Improvements 21,470      
Cost Capitalized Subsequent to Acquisition 446      
Gross Amounts Carried at Close of Period, Land 8,431      
Gross Amounts Carried at Close of Period, Building and Improvements 21,916      
Gross Amounts Carried at Close of Period, Total 30,347      
Accumulated Depreciation (5,078)      
Total Costs, Net of Accumulated Depreciation 25,269      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 23, 2013      
Centers [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 3,159      
Gross Amounts Carried at Close of Period, Land 6,150      
Gross Amounts Carried at Close of Period, Building and Improvements 26,062      
Gross Amounts Carried at Close of Period, Total 32,212      
Accumulated Depreciation (9,546)      
Total Costs, Net of Accumulated Depreciation 22,666      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 22, 2006      
Centers [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 8,187      
Gross Amounts Carried at Close of Period, Land 10,810      
Gross Amounts Carried at Close of Period, Building and Improvements 49,100      
Gross Amounts Carried at Close of Period, Total 59,910      
Accumulated Depreciation (19,291)      
Total Costs, Net of Accumulated Depreciation 40,619      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 01, 2004      
Centers [Member] | Laveen Village Marketplace [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,190      
Initial Cost to Company, Building and Improvements 0      
Cost Capitalized Subsequent to Acquisition 4,935      
Gross Amounts Carried at Close of Period, Land 1,006      
Gross Amounts Carried at Close of Period, Building and Improvements 5,119      
Gross Amounts Carried at Close of Period, Total 6,125      
Accumulated Depreciation (3,387)      
Total Costs, Net of Accumulated Depreciation 2,738      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 15, 2003      
Centers [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 1,515      
Gross Amounts Carried at Close of Period, Land 2,261      
Gross Amounts Carried at Close of Period, Building and Improvements 8,764      
Gross Amounts Carried at Close of Period, Total 11,025      
Accumulated Depreciation (5,643)      
Total Costs, Net of Accumulated Depreciation 5,382      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 20, 2008      
Centers [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 1,811      
Gross Amounts Carried at Close of Period, Land 7,223      
Gross Amounts Carried at Close of Period, Building and Improvements 18,933      
Gross Amounts Carried at Close of Period, Total 26,156      
Accumulated Depreciation (7,411)      
Total Costs, Net of Accumulated Depreciation 18,745      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 30, 2004      
Centers [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 281      
Gross Amounts Carried at Close of Period, Land 1,889      
Gross Amounts Carried at Close of Period, Building and Improvements 23,446      
Gross Amounts Carried at Close of Period, Total 25,335      
Accumulated Depreciation (1,579)      
Total Costs, Net of Accumulated Depreciation 23,756      
Encumbrances $ 0      
Date of Acquisition/Construction Sep. 14, 2016      
Centers [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 1,491      
Gross Amounts Carried at Close of Period, Land 3,816      
Gross Amounts Carried at Close of Period, Building and Improvements 14,970      
Gross Amounts Carried at Close of Period, Total 18,786      
Accumulated Depreciation (5,134)      
Total Costs, Net of Accumulated Depreciation 13,652      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 13, 2007      
Centers [Member] | Market At Westchase Shopping Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,199      
Initial Cost to Company, Building and Improvements 5,821      
Cost Capitalized Subsequent to Acquisition 3,681      
Gross Amounts Carried at Close of Period, Land 1,415      
Gross Amounts Carried at Close of Period, Building and Improvements 9,286      
Gross Amounts Carried at Close of Period, Total 10,701      
Accumulated Depreciation (6,510)      
Total Costs, Net of Accumulated Depreciation 4,191      
Encumbrances $ 0      
Date of Acquisition/Construction Feb. 15, 1991      
Centers [Member] | Markham West Shopping Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 2,694      
Initial Cost to Company, Building and Improvements 10,777      
Cost Capitalized Subsequent to Acquisition 6,254      
Gross Amounts Carried at Close of Period, Land 2,696      
Gross Amounts Carried at Close of Period, Building and Improvements 17,029      
Gross Amounts Carried at Close of Period, Total 19,725      
Accumulated Depreciation (9,525)      
Total Costs, Net of Accumulated Depreciation 10,200      
Encumbrances $ 0      
Date of Acquisition/Construction Sep. 18, 1998      
Centers [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 1,055      
Gross Amounts Carried at Close of Period, Land 2,677      
Gross Amounts Carried at Close of Period, Building and Improvements 10,198      
Gross Amounts Carried at Close of Period, Total 12,875      
Accumulated Depreciation (3,610)      
Total Costs, Net of Accumulated Depreciation 9,265      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 13, 2008      
Centers [Member] | Menifee Town Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,827      
Initial Cost to Company, Building and Improvements 7,307      
Cost Capitalized Subsequent to Acquisition 5,731      
Gross Amounts Carried at Close of Period, Land 1,824      
Gross Amounts Carried at Close of Period, Building and Improvements 13,041      
Gross Amounts Carried at Close of Period, Total 14,865      
Accumulated Depreciation (5,802)      
Total Costs, Net of Accumulated Depreciation 9,063      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [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 5,962      
Gross Amounts Carried at Close of Period, Land 755      
Gross Amounts Carried at Close of Period, Building and Improvements 6,750      
Gross Amounts Carried at Close of Period, Total 7,505      
Accumulated Depreciation (4,418)      
Total Costs, Net of Accumulated Depreciation 3,087      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 2004      
Centers [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 1,559      
Gross Amounts Carried at Close of Period, Land 10,382      
Gross Amounts Carried at Close of Period, Building and Improvements 57,862      
Gross Amounts Carried at Close of Period, Total 68,244      
Accumulated Depreciation (13,502)      
Total Costs, Net of Accumulated Depreciation 54,742      
Encumbrances $ 0      
Date of Acquisition/Construction Oct. 03, 2013      
Centers [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 5,695      
Gross Amounts Carried at Close of Period, Land 6,954      
Gross Amounts Carried at Close of Period, Building and Improvements 31,281      
Gross Amounts Carried at Close of Period, Total 38,235      
Accumulated Depreciation (13,186)      
Total Costs, Net of Accumulated Depreciation 25,049      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 19, 2004      
Centers [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 9,470      
Gross Amounts Carried at Close of Period, Land 879      
Gross Amounts Carried at Close of Period, Building and Improvements 13,479      
Gross Amounts Carried at Close of Period, Total 14,358      
Accumulated Depreciation (9,173)      
Total Costs, Net of Accumulated Depreciation 5,185      
Encumbrances $ 0      
Date of Acquisition/Construction Feb. 15, 1990      
Centers [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 (627)      
Total Costs, Net of Accumulated Depreciation 565      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 01, 2010      
Centers [Member] | Northbrook Shopping Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,629      
Initial Cost to Company, Building and Improvements 4,489      
Cost Capitalized Subsequent to Acquisition 3,992      
Gross Amounts Carried at Close of Period, Land 1,713      
Gross Amounts Carried at Close of Period, Building and Improvements 8,397      
Gross Amounts Carried at Close of Period, Total 10,110      
Accumulated Depreciation (6,869)      
Total Costs, Net of Accumulated Depreciation 3,241      
Encumbrances $ (8,792)      
Date of Acquisition/Construction Nov. 06, 1967      
Centers [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 758      
Gross Amounts Carried at Close of Period, Land 1,772      
Gross Amounts Carried at Close of Period, Building and Improvements 7,825      
Gross Amounts Carried at Close of Period, Total 9,597      
Accumulated Depreciation (3,444)      
Total Costs, Net of Accumulated Depreciation 6,153      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 04, 2002      
Centers [Member] | Nottingham Commons [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 19,523      
Initial Cost to Company, Building and Improvements 2,398      
Cost Capitalized Subsequent to Acquisition 20,213      
Gross Amounts Carried at Close of Period, Land 19,664      
Gross Amounts Carried at Close of Period, Building and Improvements 22,470      
Gross Amounts Carried at Close of Period, Total 42,134      
Accumulated Depreciation (3,330)      
Total Costs, Net of Accumulated Depreciation 38,804      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 01, 2017      
Centers [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 6,712      
Gross Amounts Carried at Close of Period, Land 1,358      
Gross Amounts Carried at Close of Period, Building and Improvements 8,840      
Gross Amounts Carried at Close of Period, Total 10,198      
Accumulated Depreciation (6,419)      
Total Costs, Net of Accumulated Depreciation 3,779      
Encumbrances $ (7,358)      
Date of Acquisition/Construction Dec. 30, 1976      
Centers [Member] | Oak Grove Market Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 5,758      
Initial Cost to Company, Building and Improvements 10,508      
Cost Capitalized Subsequent to Acquisition 1,178      
Gross Amounts Carried at Close of Period, Land 5,861      
Gross Amounts Carried at Close of Period, Building and Improvements 11,583      
Gross Amounts Carried at Close of Period, Total 17,444      
Accumulated Depreciation (3,923)      
Total Costs, Net of Accumulated Depreciation 13,521      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 15, 2007      
Centers [Member] | Oracle Wetmore Shopping Center [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 7,868      
Gross Amounts Carried at Close of Period, Land 13,813      
Gross Amounts Carried at Close of Period, Building and Improvements 45,619      
Gross Amounts Carried at Close of Period, Total 59,432      
Accumulated Depreciation (15,057)      
Total Costs, Net of Accumulated Depreciation 44,375      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 22, 2007      
Centers [Member] | Overton Park Plaza [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 9,266      
Initial Cost to Company, Building and Improvements 37,789      
Cost Capitalized Subsequent to Acquisition 16,416      
Gross Amounts Carried at Close of Period, Land 9,264      
Gross Amounts Carried at Close of Period, Building and Improvements 54,207      
Gross Amounts Carried at Close of Period, Total 63,471      
Accumulated Depreciation (22,619)      
Total Costs, Net of Accumulated Depreciation 40,852      
Encumbrances $ 0      
Date of Acquisition/Construction Oct. 24, 2003      
Centers [Member] | Parliament Square II [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 2      
Initial Cost to Company, Building and Improvements 10      
Cost Capitalized Subsequent to Acquisition 1,183      
Gross Amounts Carried at Close of Period, Land 3      
Gross Amounts Carried at Close of Period, Building and Improvements 1,192      
Gross Amounts Carried at Close of Period, Total 1,195      
Accumulated Depreciation (1,032)      
Total Costs, Net of Accumulated Depreciation 163      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 24, 2005      
Centers [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 4,724      
Gross Amounts Carried at Close of Period, Land 34,404      
Gross Amounts Carried at Close of Period, Building and Improvements 42,358      
Gross Amounts Carried at Close of Period, Total 76,762      
Accumulated Depreciation (15,349)      
Total Costs, Net of Accumulated Depreciation 61,413      
Encumbrances $ (30,481)      
Date of Acquisition/Construction Jul. 03, 2007      
Centers [Member] | Phillips Crossing [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 0      
Initial Cost to Company, Building and Improvements 1      
Cost Capitalized Subsequent to Acquisition 28,491      
Gross Amounts Carried at Close of Period, Land 872      
Gross Amounts Carried at Close of Period, Building and Improvements 27,620      
Gross Amounts Carried at Close of Period, Total 28,492      
Accumulated Depreciation (15,219)      
Total Costs, Net of Accumulated Depreciation 13,273      
Encumbrances $ 0      
Date of Acquisition/Construction Sep. 30, 2009      
Centers [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 1,630      
Gross Amounts Carried at Close of Period, Land 1,773      
Gross Amounts Carried at Close of Period, Building and Improvements 4,808      
Gross Amounts Carried at Close of Period, Total 6,581      
Accumulated Depreciation (2,107)      
Total Costs, Net of Accumulated Depreciation 4,474      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 31, 2007      
Centers [Member] | Pike Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 0      
Initial Cost to Company, Building and Improvements 40,537      
Cost Capitalized Subsequent to Acquisition 3,314      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 43,851      
Gross Amounts Carried at Close of Period, Total 43,851      
Accumulated Depreciation (12,425)      
Total Costs, Net of Accumulated Depreciation 31,426      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 14, 2012      
Centers [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 2,127      
Gross Amounts Carried at Close of Period, Land 3,471      
Gross Amounts Carried at Close of Period, Building and Improvements 16,940      
Gross Amounts Carried at Close of Period, Total 20,411      
Accumulated Depreciation (6,665)      
Total Costs, Net of Accumulated Depreciation 13,746      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 19, 2004      
Centers [Member] | Prospector's Plaza [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 3,746      
Initial Cost to Company, Building and Improvements 14,985      
Cost Capitalized Subsequent to Acquisition 5,742      
Gross Amounts Carried at Close of Period, Land 3,716      
Gross Amounts Carried at Close of Period, Building and Improvements 20,757      
Gross Amounts Carried at Close of Period, Total 24,473      
Accumulated Depreciation (9,379)      
Total Costs, Net of Accumulated Depreciation 15,094      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [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 5,330      
Gross Amounts Carried at Close of Period, Land 2,768      
Gross Amounts Carried at Close of Period, Building and Improvements 16,312      
Gross Amounts Carried at Close of Period, Total 19,080      
Accumulated Depreciation (10,500)      
Total Costs, Net of Accumulated Depreciation 8,580      
Encumbrances $ (13,977)      
Date of Acquisition/Construction Jun. 16, 1994      
Centers [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 18,182      
Gross Amounts Carried at Close of Period, Land 10,983      
Gross Amounts Carried at Close of Period, Building and Improvements 19,236      
Gross Amounts Carried at Close of Period, Total 30,219      
Accumulated Depreciation (12,257)      
Total Costs, Net of Accumulated Depreciation 17,962      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 31, 2008      
Centers [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 5,490      
Gross Amounts Carried at Close of Period, Land 3,887      
Gross Amounts Carried at Close of Period, Building and Improvements 19,274      
Gross Amounts Carried at Close of Period, Total 23,161      
Accumulated Depreciation (8,348)      
Total Costs, Net of Accumulated Depreciation 14,813      
Encumbrances $ 0      
Date of Acquisition/Construction Feb. 26, 2003      
Centers [Member] | Rancho Towne & 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 790      
Gross Amounts Carried at Close of Period, Land 1,166      
Gross Amounts Carried at Close of Period, Building and Improvements 5,432      
Gross Amounts Carried at Close of Period, Total 6,598      
Accumulated Depreciation (3,325)      
Total Costs, Net of Accumulated Depreciation 3,273      
Encumbrances $ 0      
Date of Acquisition/Construction Oct. 16, 1995      
Centers [Member] | Randalls Center/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 658      
Gross Amounts Carried at Close of Period, Land 3,585      
Gross Amounts Carried at Close of Period, Building and Improvements 8,790      
Gross Amounts Carried at Close of Period, Total 12,375      
Accumulated Depreciation (5,756)      
Total Costs, Net of Accumulated Depreciation 6,619      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 13, 2008      
Centers [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 12,719      
Gross Amounts Carried at Close of Period, Land 3,317      
Gross Amounts Carried at Close of Period, Building and Improvements 11,657      
Gross Amounts Carried at Close of Period, Total 14,974      
Accumulated Depreciation (5,377)      
Total Costs, Net of Accumulated Depreciation 9,597      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 2003      
Centers [Member] | Reynolds Crossing [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 4,276      
Initial Cost to Company, Building and Improvements 9,186      
Cost Capitalized Subsequent to Acquisition 359      
Gross Amounts Carried at Close of Period, Land 4,276      
Gross Amounts Carried at Close of Period, Building and Improvements 9,545      
Gross Amounts Carried at Close of Period, Total 13,821      
Accumulated Depreciation (3,002)      
Total Costs, Net of Accumulated Depreciation 10,819      
Encumbrances $ 0      
Date of Acquisition/Construction Sep. 14, 2006      
Centers [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 13,598      
Gross Amounts Carried at Close of Period, Land 14,512      
Gross Amounts Carried at Close of Period, Building and Improvements 2,032      
Gross Amounts Carried at Close of Period, Total 16,544      
Accumulated Depreciation (1,340)      
Total Costs, Net of Accumulated Depreciation 15,204      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 1996      
Centers [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 25,736      
Gross Amounts Carried at Close of Period, Land 16,100      
Gross Amounts Carried at Close of Period, Building and Improvements 36,809      
Gross Amounts Carried at Close of Period, Total 52,909      
Accumulated Depreciation (15,831)      
Total Costs, Net of Accumulated Depreciation 37,078      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 09, 2006      
Centers [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 357      
Gross Amounts Carried at Close of Period, Land 1,363      
Gross Amounts Carried at Close of Period, Building and Improvements 2,294      
Gross Amounts Carried at Close of Period, Total 3,657      
Accumulated Depreciation (2,019)      
Total Costs, Net of Accumulated Depreciation 1,638      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 04, 1992      
Centers [Member] | River Oaks Shopping Center - West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 3,534      
Initial Cost to Company, Building and Improvements 17,741      
Cost Capitalized Subsequent to Acquisition 60,185      
Gross Amounts Carried at Close of Period, Land 4,210      
Gross Amounts Carried at Close of Period, Building and Improvements 77,250      
Gross Amounts Carried at Close of Period, Total 81,460      
Accumulated Depreciation (27,702)      
Total Costs, Net of Accumulated Depreciation 53,758      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 04, 1992      
Centers [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 17,601      
Gross Amounts Carried at Close of Period, Land 10,659      
Gross Amounts Carried at Close of Period, Building and Improvements 39,882      
Gross Amounts Carried at Close of Period, Total 50,541      
Accumulated Depreciation (13,164)      
Total Costs, Net of Accumulated Depreciation 37,377      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 01, 2010      
Centers [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 6,375      
Gross Amounts Carried at Close of Period, Land 7,134      
Gross Amounts Carried at Close of Period, Building and Improvements 26,824      
Gross Amounts Carried at Close of Period, Total 33,958      
Accumulated Depreciation (9,373)      
Total Costs, Net of Accumulated Depreciation 24,585      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 24, 2004      
Centers [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 1,332      
Gross Amounts Carried at Close of Period, Land 7,625      
Gross Amounts Carried at Close of Period, Building and Improvements 19,905      
Gross Amounts Carried at Close of Period, Total 27,530      
Accumulated Depreciation (5,882)      
Total Costs, Net of Accumulated Depreciation 21,648      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 18, 2012      
Centers [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 1,014      
Gross Amounts Carried at Close of Period, Land 1,358      
Gross Amounts Carried at Close of Period, Building and Improvements 6,455      
Gross Amounts Carried at Close of Period, Total 7,813      
Accumulated Depreciation (2,885)      
Total Costs, Net of Accumulated Depreciation 4,928      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [Member] | Scottsdale Horizon [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 0      
Initial Cost to Company, Building and Improvements 3,241      
Cost Capitalized Subsequent to Acquisition 39,512      
Gross Amounts Carried at Close of Period, Land 12,914      
Gross Amounts Carried at Close of Period, Building and Improvements 29,839      
Gross Amounts Carried at Close of Period, Total 42,753      
Accumulated Depreciation (5,981)      
Total Costs, Net of Accumulated Depreciation 36,772      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 22, 2007      
Centers [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 560      
Gross Amounts Carried at Close of Period, Land 21,586      
Gross Amounts Carried at Close of Period, Building and Improvements 29,629      
Gross Amounts Carried at Close of Period, Total 51,215      
Accumulated Depreciation (2,016)      
Total Costs, Net of Accumulated Depreciation 49,199      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 17, 2016      
Centers [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 2,055      
Gross Amounts Carried at Close of Period, Land 11,977      
Gross Amounts Carried at Close of Period, Building and Improvements 6,274      
Gross Amounts Carried at Close of Period, Total 18,251      
Accumulated Depreciation (1,763)      
Total Costs, Net of Accumulated Depreciation 16,488      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 06, 2013      
Centers [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 1,645      
Gross Amounts Carried at Close of Period, Land 3,290      
Gross Amounts Carried at Close of Period, Building and Improvements 7,110      
Gross Amounts Carried at Close of Period, Total 10,400      
Accumulated Depreciation (2,709)      
Total Costs, Net of Accumulated Depreciation 7,691      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 13, 2007      
Centers [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 9,593      
Gross Amounts Carried at Close of Period, Land 3,332      
Gross Amounts Carried at Close of Period, Building and Improvements 12,464      
Gross Amounts Carried at Close of Period, Total 15,796      
Accumulated Depreciation (8,903)      
Total Costs, Net of Accumulated Depreciation 6,893      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 11, 2012      
Centers [Member] | Shoppes Of South Semoran [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 5,339      
Initial Cost to Company, Building and Improvements 9,785      
Cost Capitalized Subsequent to Acquisition (1,315)      
Gross Amounts Carried at Close of Period, Land 5,672      
Gross Amounts Carried at Close of Period, Building and Improvements 8,137      
Gross Amounts Carried at Close of Period, Total 13,809      
Accumulated Depreciation (2,708)      
Total Costs, Net of Accumulated Depreciation 11,101      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 31, 2007      
Centers [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 288      
Gross Amounts Carried at Close of Period, Land 1,202      
Gross Amounts Carried at Close of Period, Building and Improvements 1,232      
Gross Amounts Carried at Close of Period, Total 2,434      
Accumulated Depreciation (531)      
Total Costs, Net of Accumulated Depreciation 1,903      
Encumbrances $ 0      
Date of Acquisition/Construction May 27, 2008      
Centers [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 11,319      
Gross Amounts Carried at Close of Period, Land 10,587      
Gross Amounts Carried at Close of Period, Building and Improvements 16,250      
Gross Amounts Carried at Close of Period, Total 26,837      
Accumulated Depreciation (11,345)      
Total Costs, Net of Accumulated Depreciation 15,492      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 1989      
Centers [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 6,608      
Gross Amounts Carried at Close of Period, Land 3,228      
Gross Amounts Carried at Close of Period, Building and Improvements 19,535      
Gross Amounts Carried at Close of Period, Total 22,763      
Accumulated Depreciation (8,018)      
Total Costs, Net of Accumulated Depreciation 14,745      
Encumbrances $ (14,024)      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [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 6,668      
Gross Amounts Carried at Close of Period, Land 6,728      
Gross Amounts Carried at Close of Period, Building and Improvements 33,377      
Gross Amounts Carried at Close of Period, Total 40,105      
Accumulated Depreciation (15,403)      
Total Costs, Net of Accumulated Depreciation 24,702      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 04, 2002      
Centers [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 3,271      
Gross Amounts Carried at Close of Period, Land 4,333      
Gross Amounts Carried at Close of Period, Building and Improvements 20,624      
Gross Amounts Carried at Close of Period, Total 24,957      
Accumulated Depreciation (10,006)      
Total Costs, Net of Accumulated Depreciation 14,951      
Encumbrances $ (19,750)      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [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 783      
Gross Amounts Carried at Close of Period, Land 231      
Gross Amounts Carried at Close of Period, Building and Improvements 9,173      
Gross Amounts Carried at Close of Period, Total 9,404      
Accumulated Depreciation (6,022)      
Total Costs, Net of Accumulated Depreciation 3,382      
Encumbrances $ (6,467)      
Date of Acquisition/Construction Mar. 20, 2008      
Centers [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 3,514      
Gross Amounts Carried at Close of Period, Land 818      
Gross Amounts Carried at Close of Period, Building and Improvements 6,778      
Gross Amounts Carried at Close of Period, Total 7,596      
Accumulated Depreciation (4,086)      
Total Costs, Net of Accumulated Depreciation 3,510      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 20, 1994      
Centers [Member] | Stella Link Shopping Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 2,830      
Initial Cost to Company, Building and Improvements 1,841      
Cost Capitalized Subsequent to Acquisition 88      
Gross Amounts Carried at Close of Period, Land 2,897      
Gross Amounts Carried at Close of Period, Building and Improvements 1,862      
Gross Amounts Carried at Close of Period, Total 4,759      
Accumulated Depreciation (1,637)      
Total Costs, Net of Accumulated Depreciation 3,122      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 10, 1970      
Centers [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 2,494      
Gross Amounts Carried at Close of Period, Land 4,740      
Gross Amounts Carried at Close of Period, Building and Improvements 21,495      
Gross Amounts Carried at Close of Period, Total 26,235      
Accumulated Depreciation (9,999)      
Total Costs, Net of Accumulated Depreciation 16,236      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 04, 2002      
Centers [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 11,302      
Gross Amounts Carried at Close of Period, Land 3,453      
Gross Amounts Carried at Close of Period, Building and Improvements 25,295      
Gross Amounts Carried at Close of Period, Total 28,748      
Accumulated Depreciation (12,307)      
Total Costs, Net of Accumulated Depreciation 16,441      
Encumbrances $ (10,614)      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [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 22,589      
Gross Amounts Carried at Close of Period, Land 6,010      
Gross Amounts Carried at Close of Period, Building and Improvements 44,174      
Gross Amounts Carried at Close of Period, Total 50,184      
Accumulated Depreciation (11,610)      
Total Costs, Net of Accumulated Depreciation 38,574      
Encumbrances $ 0      
Date of Acquisition/Construction Oct. 29, 2001      
Centers [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 24,998      
Gross Amounts Carried at Close of Period, Land 17,822      
Gross Amounts Carried at Close of Period, Building and Improvements 21,022      
Gross Amounts Carried at Close of Period, Total 38,844      
Accumulated Depreciation (13,954)      
Total Costs, Net of Accumulated Depreciation 24,890      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 1996      
Centers [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 3,557      
Gross Amounts Carried at Close of Period, Land 4,988      
Gross Amounts Carried at Close of Period, Building and Improvements 22,463      
Gross Amounts Carried at Close of Period, Total 27,451      
Accumulated Depreciation (9,404)      
Total Costs, Net of Accumulated Depreciation 18,047      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 13, 2008      
Centers [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 6,518      
Gross Amounts Carried at Close of Period, Land 79,673      
Gross Amounts Carried at Close of Period, Building and Improvements 178,881      
Gross Amounts Carried at Close of Period, Total 258,554      
Accumulated Depreciation (14,307)      
Total Costs, Net of Accumulated Depreciation 244,247      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 27, 2016      
Centers [Member] | Westside Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 14,952      
Initial Cost to Company, Building and Improvements 10,350      
Cost Capitalized Subsequent to Acquisition 494      
Gross Amounts Carried at Close of Period, Land 14,952      
Gross Amounts Carried at Close of Period, Building and Improvements 10,844      
Gross Amounts Carried at Close of Period, Total 25,796      
Accumulated Depreciation (962)      
Total Costs, Net of Accumulated Depreciation 24,834      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 22, 2015      
Centers [Member] | Thompson Bridge Commons [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 604      
Initial Cost to Company, Building and Improvements 0      
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 (147)      
Total Costs, Net of Accumulated Depreciation 1,082      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 26, 2005      
Centers [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 1,215      
Gross Amounts Carried at Close of Period, Land 2,973      
Gross Amounts Carried at Close of Period, Building and Improvements 14,357      
Gross Amounts Carried at Close of Period, Total 17,330      
Accumulated Depreciation (5,914)      
Total Costs, Net of Accumulated Depreciation 11,416      
Encumbrances $ (11,803)      
Date of Acquisition/Construction Mar. 20, 2008      
Centers [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 4,042      
Gross Amounts Carried at Close of Period, Land 3,430      
Gross Amounts Carried at Close of Period, Building and Improvements 23,295      
Gross Amounts Carried at Close of Period, Total 26,725      
Accumulated Depreciation (8,993)      
Total Costs, Net of Accumulated Depreciation 17,732      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 01, 2004      
Centers [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 26,467      
Gross Amounts Carried at Close of Period, Land 6,726      
Gross Amounts Carried at Close of Period, Building and Improvements 29,619      
Gross Amounts Carried at Close of Period, Total 36,345      
Accumulated Depreciation (13,534)      
Total Costs, Net of Accumulated Depreciation 22,811      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 12, 2006      
Centers [Member] | Trenton Crossing/North McAllen [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 1,866      
Gross Amounts Carried at Close of Period, Land 9,855      
Gross Amounts Carried at Close of Period, Building and Improvements 30,999      
Gross Amounts Carried at Close of Period, Total 40,854      
Accumulated Depreciation (3,136)      
Total Costs, Net of Accumulated Depreciation 37,718      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 31, 2015      
Centers [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 4,909      
Gross Amounts Carried at Close of Period, Land 8,910      
Gross Amounts Carried at Close of Period, Building and Improvements 14,028      
Gross Amounts Carried at Close of Period, Total 22,938      
Accumulated Depreciation (3,772)      
Total Costs, Net of Accumulated Depreciation 19,166      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 07, 2006      
Centers [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 2,536      
Gross Amounts Carried at Close of Period, Land 3,044      
Gross Amounts Carried at Close of Period, Building and Improvements 14,762      
Gross Amounts Carried at Close of Period, Total 17,806      
Accumulated Depreciation (6,109)      
Total Costs, Net of Accumulated Depreciation 11,697      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 18, 2002      
Centers [Member] | Waterford Village [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 5,830      
Initial Cost to Company, Building and Improvements 0      
Cost Capitalized Subsequent to Acquisition 13,217      
Gross Amounts Carried at Close of Period, Land 3,775      
Gross Amounts Carried at Close of Period, Building and Improvements 15,272      
Gross Amounts Carried at Close of Period, Total 19,047      
Accumulated Depreciation (7,486)      
Total Costs, Net of Accumulated Depreciation 11,561      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 11, 2004      
Centers [Member] | Wellington Green Commons [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 2,755      
Gross Amounts Carried at Close of Period, Land 16,500      
Gross Amounts Carried at Close of Period, Building and Improvements 35,244      
Gross Amounts Carried at Close of Period, Total 51,744      
Accumulated Depreciation (3,643)      
Total Costs, Net of Accumulated Depreciation 48,101      
Encumbrances $ (17,974)      
Date of Acquisition/Construction Apr. 20, 2015      
Centers [Member] | West Jordan Town Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 4,306      
Initial Cost to Company, Building and Improvements 17,776      
Cost Capitalized Subsequent to Acquisition (1,797)      
Gross Amounts Carried at Close of Period, Land 3,269      
Gross Amounts Carried at Close of Period, Building and Improvements 17,016      
Gross Amounts Carried at Close of Period, Total 20,285      
Accumulated Depreciation (7,677)      
Total Costs, Net of Accumulated Depreciation 12,608      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 19, 2003      
Centers [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 13,629      
Gross Amounts Carried at Close of Period, Land 3,189      
Gross Amounts Carried at Close of Period, Building and Improvements 21,445      
Gross Amounts Carried at Close of Period, Total 24,634      
Accumulated Depreciation (13,952)      
Total Costs, Net of Accumulated Depreciation 10,682      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 29, 1978      
Centers [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 6,787      
Gross Amounts Carried at Close of Period, Land 437      
Gross Amounts Carried at Close of Period, Building and Improvements 9,760      
Gross Amounts Carried at Close of Period, Total 10,197      
Accumulated Depreciation (5,974)      
Total Costs, Net of Accumulated Depreciation 4,223      
Encumbrances $ 0      
Date of Acquisition/Construction May 01, 1958      
Centers [Member] | Westland Fair [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 27,562      
Initial Cost to Company, Building and Improvements 10,506      
Cost Capitalized Subsequent to Acquisition (6,695)      
Gross Amounts Carried at Close of Period, Land 12,220      
Gross Amounts Carried at Close of Period, Building and Improvements 19,153      
Gross Amounts Carried at Close of Period, Total 31,373      
Accumulated Depreciation (10,718)      
Total Costs, Net of Accumulated Depreciation 20,655      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 29, 2000      
Centers [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 9,752      
Gross Amounts Carried at Close of Period, Land 11,204      
Gross Amounts Carried at Close of Period, Building and Improvements 54,634      
Gross Amounts Carried at Close of Period, Total 65,838      
Accumulated Depreciation (26,013)      
Total Costs, Net of Accumulated Depreciation 39,825      
Encumbrances $ (47,250)      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [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 10,203      
Gross Amounts Carried at Close of Period, Land 2,280      
Gross Amounts Carried at Close of Period, Building and Improvements 18,718      
Gross Amounts Carried at Close of Period, Total 20,998      
Accumulated Depreciation (4,872)      
Total Costs, Net of Accumulated Depreciation 16,126      
Encumbrances $ 0      
Date of Acquisition/Construction Sep. 06, 2001      
New Development [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 47,400      
Initial Cost to Company, Building and Improvements 22,064      
Cost Capitalized Subsequent to Acquisition 81,178      
Gross Amounts Carried at Close of Period, Land 51,828      
Gross Amounts Carried at Close of Period, Building and Improvements 98,814      
Gross Amounts Carried at Close of Period, Total 150,642      
Accumulated Depreciation (569)      
Total Costs, Net of Accumulated Depreciation 150,073      
Encumbrances 0      
New Development [Member] | West Alex [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land 42,163      
Initial Cost to Company, Building and Improvements 2,669      
Cost Capitalized Subsequent to Acquisition 77,956      
Gross Amounts Carried at Close of Period, Land 46,494      
Gross Amounts Carried at Close of Period, Building and Improvements 76,294      
Gross Amounts Carried at Close of Period, Total 122,788      
Accumulated Depreciation 0      
Total Costs, Net of Accumulated Depreciation 122,788      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 01, 2016      
New Development [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 3,222      
Gross Amounts Carried at Close of Period, Land 5,334      
Gross Amounts Carried at Close of Period, Building and Improvements 22,520      
Gross Amounts Carried at Close of Period, Total 27,854      
Accumulated Depreciation (569)      
Total Costs, Net of Accumulated Depreciation 27,285      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 24, 2017      
Secured Debt [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Fixed rate mortgage debt excluded from amount encumbrances $ 17,700      
Non-cash debt 1,800      
Deferred finance costs $ (1,000)