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Real Estate And Accumulated Depreciation (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 956,944      
Initial Cost to Company, Building and Improvements 2,111,052      
Cost Capitalized Subsequent to Acquisition 1,077,253      
Gross Amounts Carried at Close of Period, Land 1,005,264      
Gross Amounts Carried at Close of Period, Building and Improvements 3,139,985      
Gross Amounts Carried at Close of Period, Total 4,145,249 $ 4,105,068 $ 4,498,859 $ 4,789,145
Accumulated Depreciation (1,110,675) (1,108,188) $ (1,166,126) $ (1,184,546)
Total Costs, Net of Accumulated Depreciation 3,034,574      
Encumbrances (263,355)      
Fixed assets book value in excess of (less than) tax basis 286,200 $ 211,000    
Non-cash debt 1,500      
Deferred finance costs $ (5,500)      
Real estate asset, estimated useful life 40 years      
Building [Member] | Minimum [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Real estate asset, estimated useful life 18 years      
Building [Member] | Maximum [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Real estate asset, estimated useful life 40 years      
Parking Lot Surfacing And Equipment [Member] | Minimum [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Real estate asset, estimated useful life 10 years      
Parking Lot Surfacing And Equipment [Member] | Maximum [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Real estate asset, estimated useful life 20 years      
Miscellaneous (Not To Exceed 5% Of Total) [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 80,374      
Initial Cost to Company, Building and Improvements 3,096      
Cost Capitalized Subsequent to Acquisition 57,582      
Gross Amounts Carried at Close of Period, Land 61,734      
Gross Amounts Carried at Close of Period, Building and Improvements 79,318      
Gross Amounts Carried at Close of Period, Total 141,052      
Accumulated Depreciation (34,904)      
Total Costs, Net of Accumulated Depreciation 106,148      
Encumbrances 0      
Centers [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land 837,327      
Initial Cost to Company, Building and Improvements 2,105,287      
Cost Capitalized Subsequent to Acquisition 813,747      
Gross Amounts Carried at Close of Period, Land 897,103      
Gross Amounts Carried at Close of Period, Building and Improvements 2,859,258      
Gross Amounts Carried at Close of Period, Total 3,756,361      
Accumulated Depreciation (1,075,771)      
Total Costs, Net of Accumulated Depreciation 2,680,590      
Encumbrances (263,355)      
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 1,417      
Gross Amounts Carried at Close of Period, Land 1,791      
Gross Amounts Carried at Close of Period, Building and Improvements 8,887      
Gross Amounts Carried at Close of Period, Total 10,678      
Accumulated Depreciation (7,694)      
Total Costs, Net of Accumulated Depreciation 2,984      
Encumbrances $ (6,191)      
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 4,136      
Gross Amounts Carried at Close of Period, Land 3,889      
Gross Amounts Carried at Close of Period, Building and Improvements 19,709      
Gross Amounts Carried at Close of Period, Total 23,598      
Accumulated Depreciation (9,794)      
Total Costs, Net of Accumulated Depreciation 13,804      
Encumbrances $ 0      
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 8,776      
Gross Amounts Carried at Close of Period, Land 18,320      
Gross Amounts Carried at Close of Period, Building and Improvements 82,207      
Gross Amounts Carried at Close of Period, Total 100,527      
Accumulated Depreciation (19,366)      
Total Costs, Net of Accumulated Depreciation 81,161      
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 8,401      
Gross Amounts Carried at Close of Period, Land 1,062      
Gross Amounts Carried at Close of Period, Building and Improvements 10,002      
Gross Amounts Carried at Close of Period, Total 11,064      
Accumulated Depreciation (6,158)      
Total Costs, Net of Accumulated Depreciation 4,906      
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 4,813      
Gross Amounts Carried at Close of Period, Land 4,526      
Gross Amounts Carried at Close of Period, Building and Improvements 22,914      
Gross Amounts Carried at Close of Period, Total 27,440      
Accumulated Depreciation (10,688)      
Total Costs, Net of Accumulated Depreciation 16,752      
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 1,494      
Gross Amounts Carried at Close of Period, Land 1,952      
Gross Amounts Carried at Close of Period, Building and Improvements 9,308      
Gross Amounts Carried at Close of Period, Total 11,260      
Accumulated Depreciation (4,371)      
Total Costs, Net of Accumulated Depreciation 6,889      
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 5,283      
Gross Amounts Carried at Close of Period, Land 10,623      
Gross Amounts Carried at Close of Period, Building and Improvements 35,590      
Gross Amounts Carried at Close of Period, Total 46,213      
Accumulated Depreciation (6,412)      
Total Costs, Net of Accumulated Depreciation 39,801      
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 (49)      
Total Costs, Net of Accumulated Depreciation 1,048      
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 2,097      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 6,827      
Gross Amounts Carried at Close of Period, Total 6,827      
Accumulated Depreciation (5,688)      
Total Costs, Net of Accumulated Depreciation 1,139      
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 6,277      
Gross Amounts Carried at Close of Period, Land 3,651      
Gross Amounts Carried at Close of Period, Building and Improvements 21,008      
Gross Amounts Carried at Close of Period, Total 24,659      
Accumulated Depreciation (9,367)      
Total Costs, Net of Accumulated Depreciation 15,292      
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 2,234      
Gross Amounts Carried at Close of Period, Land 906      
Gross Amounts Carried at Close of Period, Building and Improvements 5,863      
Gross Amounts Carried at Close of Period, Total 6,769      
Accumulated Depreciation (3,964)      
Total Costs, Net of Accumulated Depreciation 2,805      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 16, 1993      
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 618      
Gross Amounts Carried at Close of Period, Land 1,333      
Gross Amounts Carried at Close of Period, Building and Improvements 6,154      
Gross Amounts Carried at Close of Period, Total 7,487      
Accumulated Depreciation (2,196)      
Total Costs, Net of Accumulated Depreciation 5,291      
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 1,001      
Gross Amounts Carried at Close of Period, Land 930      
Gross Amounts Carried at Close of Period, Building and Improvements 7,652      
Gross Amounts Carried at Close of Period, Total 8,582      
Accumulated Depreciation (2,910)      
Total Costs, Net of Accumulated Depreciation 5,672      
Encumbrances $ 0      
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 189      
Gross Amounts Carried at Close of Period, Land 48,851      
Gross Amounts Carried at Close of Period, Building and Improvements 1,230      
Gross Amounts Carried at Close of Period, Total 50,081      
Accumulated Depreciation (1,001)      
Total Costs, Net of Accumulated Depreciation 49,080      
Encumbrances $ 0      
Date of Acquisition/Construction Feb. 27, 2015      
Centers [Member] | Camelback Miller Plaza [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 9,176      
Initial Cost to Company, Building and Improvements 26,898      
Cost Capitalized Subsequent to Acquisition 154      
Gross Amounts Carried at Close of Period, Land 9,176      
Gross Amounts Carried at Close of Period, Building and Improvements 27,052      
Gross Amounts Carried at Close of Period, Total 36,228      
Accumulated Depreciation (430)      
Total Costs, Net of Accumulated Depreciation 35,798      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 27, 2019      
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 1,511      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 10,231      
Gross Amounts Carried at Close of Period, Total 10,231      
Accumulated Depreciation (6,497)      
Total Costs, Net of Accumulated Depreciation 3,734      
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 4,946      
Gross Amounts Carried at Close of Period, Land 4,697      
Gross Amounts Carried at Close of Period, Building and Improvements 38,454      
Gross Amounts Carried at Close of Period, Total 43,151      
Accumulated Depreciation (12,393)      
Total Costs, Net of Accumulated Depreciation 30,758      
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 2,272      
Gross Amounts Carried at Close of Period, Land 1,852      
Gross Amounts Carried at Close of Period, Building and Improvements 9,678      
Gross Amounts Carried at Close of Period, Total 11,530      
Accumulated Depreciation (4,694)      
Total Costs, Net of Accumulated Depreciation 6,836      
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 3,697      
Gross Amounts Carried at Close of Period, Land 914      
Gross Amounts Carried at Close of Period, Building and Improvements 7,357      
Gross Amounts Carried at Close of Period, Total 8,271      
Accumulated Depreciation (3,698)      
Total Costs, Net of Accumulated Depreciation 4,573      
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 3,791      
Gross Amounts Carried at Close of Period, Land 23,210      
Gross Amounts Carried at Close of Period, Building and Improvements 40,688      
Gross Amounts Carried at Close of Period, Total 63,898      
Accumulated Depreciation (14,411)      
Total Costs, Net of Accumulated Depreciation 49,487      
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 13,424      
Gross Amounts Carried at Close of Period, Land 7,234      
Gross Amounts Carried at Close of Period, Building and Improvements 42,280      
Gross Amounts Carried at Close of Period, Total 49,514      
Accumulated Depreciation (23,453)      
Total Costs, Net of Accumulated Depreciation 26,061      
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 9,067      
Gross Amounts Carried at Close of Period, Land 534      
Gross Amounts Carried at Close of Period, Building and Improvements 17,937      
Gross Amounts Carried at Close of Period, Total 18,471      
Accumulated Depreciation (15,349)      
Total Costs, Net of Accumulated Depreciation 3,122      
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 8,000      
Gross Amounts Carried at Close of Period, Land 2,641      
Gross Amounts Carried at Close of Period, Building and Improvements 16,405      
Gross Amounts Carried at Close of Period, Total 19,046      
Accumulated Depreciation (12,481)      
Total Costs, Net of Accumulated Depreciation 6,565      
Encumbrances $ (11,425)      
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 16,507      
Gross Amounts Carried at Close of Period, Land 10,813      
Gross Amounts Carried at Close of Period, Building and Improvements 59,734      
Gross Amounts Carried at Close of Period, Total 70,547      
Accumulated Depreciation (33,169)      
Total Costs, Net of Accumulated Depreciation 37,378      
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 10,717      
Gross Amounts Carried at Close of Period, Land 15,559      
Gross Amounts Carried at Close of Period, Building and Improvements 40,499      
Gross Amounts Carried at Close of Period, Total 56,058      
Accumulated Depreciation (16,712)      
Total Costs, Net of Accumulated Depreciation 39,346      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 06, 2007      
Centers [Member] | Covington Esplanade [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 10,571      
Initial Cost to Company, Building and Improvements 18,509      
Cost Capitalized Subsequent to Acquisition 0      
Gross Amounts Carried at Close of Period, Land 10,571      
Gross Amounts Carried at Close of Period, Building and Improvements 18,509      
Gross Amounts Carried at Close of Period, Total 29,080      
Accumulated Depreciation (79)      
Total Costs, Net of Accumulated Depreciation 29,001      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 18, 2019      
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 356      
Gross Amounts Carried at Close of Period, Land 6,400      
Gross Amounts Carried at Close of Period, Building and Improvements 23,740      
Gross Amounts Carried at Close of Period, Total 30,140      
Accumulated Depreciation (2,797)      
Total Costs, Net of Accumulated Depreciation 27,343      
Encumbrances $ (13,614)      
Date of Acquisition/Construction Feb. 12, 2016      
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 7,445      
Gross Amounts Carried at Close of Period, Land 27,806      
Gross Amounts Carried at Close of Period, Building and Improvements 84,482      
Gross Amounts Carried at Close of Period, Total 112,288      
Accumulated Depreciation (10,259)      
Total Costs, Net of Accumulated Depreciation 102,029      
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 2,488      
Gross Amounts Carried at Close of Period, Land 3,362      
Gross Amounts Carried at Close of Period, Building and Improvements 17,457      
Gross Amounts Carried at Close of Period, Total 20,819      
Accumulated Depreciation (4,763)      
Total Costs, Net of Accumulated Depreciation 16,056      
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 835      
Gross Amounts Carried at Close of Period, Land 4,821      
Gross Amounts Carried at Close of Period, Building and Improvements 12,060      
Gross Amounts Carried at Close of Period, Total 16,881      
Accumulated Depreciation (3,429)      
Total Costs, Net of Accumulated Depreciation 13,452      
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 5,020      
Gross Amounts Carried at Close of Period, Land 4,429      
Gross Amounts Carried at Close of Period, Building and Improvements 25,579      
Gross Amounts Carried at Close of Period, Total 30,008      
Accumulated Depreciation (11,272)      
Total Costs, Net of Accumulated Depreciation 18,736      
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 2,515      
Gross Amounts Carried at Close of Period, Land 2,803      
Gross Amounts Carried at Close of Period, Building and Improvements 13,783      
Gross Amounts Carried at Close of Period, Total 16,586      
Accumulated Depreciation (6,018)      
Total Costs, Net of Accumulated Depreciation 10,568      
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 2,120      
Gross Amounts Carried at Close of Period, Land 6,115      
Gross Amounts Carried at Close of Period, Building and Improvements 12,557      
Gross Amounts Carried at Close of Period, Total 18,672      
Accumulated Depreciation (5,020)      
Total Costs, Net of Accumulated Depreciation 13,652      
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 3,702      
Gross Amounts Carried at Close of Period, Land 320      
Gross Amounts Carried at Close of Period, Building and Improvements 4,836      
Gross Amounts Carried at Close of Period, Total 5,156      
Accumulated Depreciation (3,780)      
Total Costs, Net of Accumulated Depreciation 1,376      
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 1,649      
Gross Amounts Carried at Close of Period, Land 3,542      
Gross Amounts Carried at Close of Period, Building and Improvements 15,931      
Gross Amounts Carried at Close of Period, Total 19,473      
Accumulated Depreciation (6,840)      
Total Costs, Net of Accumulated Depreciation 12,633      
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 4,048      
Gross Amounts Carried at Close of Period, Land 5,022      
Gross Amounts Carried at Close of Period, Building and Improvements 18,050      
Gross Amounts Carried at Close of Period, Total 23,072      
Accumulated Depreciation (8,235)      
Total Costs, Net of Accumulated Depreciation 14,837      
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 14,342      
Gross Amounts Carried at Close of Period, Land 11,267      
Gross Amounts Carried at Close of Period, Building and Improvements 44,690      
Gross Amounts Carried at Close of Period, Total 55,957      
Accumulated Depreciation (16,895)      
Total Costs, Net of Accumulated Depreciation 39,062      
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 2,591      
Gross Amounts Carried at Close of Period, Land 1,095      
Gross Amounts Carried at Close of Period, Building and Improvements 8,091      
Gross Amounts Carried at Close of Period, Total 9,186      
Accumulated Depreciation (5,065)      
Total Costs, Net of Accumulated Depreciation 4,121      
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 4,963      
Gross Amounts Carried at Close of Period, Land 2,403      
Gross Amounts Carried at Close of Period, Building and Improvements 12,556      
Gross Amounts Carried at Close of Period, Total 14,959      
Accumulated Depreciation (8,958)      
Total Costs, Net of Accumulated Depreciation 6,001      
Encumbrances $ (10,379)      
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 6,009      
Gross Amounts Carried at Close of Period, Land 6,944      
Gross Amounts Carried at Close of Period, Building and Improvements 17,296      
Gross Amounts Carried at Close of Period, Total 24,240      
Accumulated Depreciation (7,815)      
Total Costs, Net of Accumulated Depreciation 16,425      
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 9,490      
Gross Amounts Carried at Close of Period, Land 10,504      
Gross Amounts Carried at Close of Period, Building and Improvements 20,120      
Gross Amounts Carried at Close of Period, Total 30,624      
Accumulated Depreciation (6,594)      
Total Costs, Net of Accumulated Depreciation 24,030      
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 6,242      
Gross Amounts Carried at Close of Period, Land 3,279      
Gross Amounts Carried at Close of Period, Building and Improvements 11,198      
Gross Amounts Carried at Close of Period, Total 14,477      
Accumulated Depreciation (9,031)      
Total Costs, Net of Accumulated Depreciation 5,446      
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 5,611      
Gross Amounts Carried at Close of Period, Land 4,808      
Gross Amounts Carried at Close of Period, Building and Improvements 24,864      
Gross Amounts Carried at Close of Period, Total 29,672      
Accumulated Depreciation (12,503)      
Total Costs, Net of Accumulated Depreciation 17,169      
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 619      
Gross Amounts Carried at Close of Period, Land 3,163      
Gross Amounts Carried at Close of Period, Building and Improvements 9,659      
Gross Amounts Carried at Close of Period, Total 12,822      
Accumulated Depreciation (3,739)      
Total Costs, Net of Accumulated Depreciation 9,083      
Encumbrances $ (3,858)      
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 4,581      
Gross Amounts Carried at Close of Period, Land 4,750      
Gross Amounts Carried at Close of Period, Building and Improvements 27,209      
Gross Amounts Carried at Close of Period, Total 31,959      
Accumulated Depreciation (11,954)      
Total Costs, Net of Accumulated Depreciation 20,005      
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 678      
Gross Amounts Carried at Close of Period, Land 257      
Gross Amounts Carried at Close of Period, Building and Improvements 2,981      
Gross Amounts Carried at Close of Period, Total 3,238      
Accumulated Depreciation (1,966)      
Total Costs, Net of Accumulated Depreciation 1,272      
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 1,424      
Gross Amounts Carried at Close of Period, Land 1,278      
Gross Amounts Carried at Close of Period, Building and Improvements 5,348      
Gross Amounts Carried at Close of Period, Total 6,626      
Accumulated Depreciation (4,399)      
Total Costs, Net of Accumulated Depreciation 2,227      
Encumbrances $ (9,496)      
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 (1,474)      
Total Costs, Net of Accumulated Depreciation 4,477      
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 2,613      
Gross Amounts Carried at Close of Period, Land 1,055      
Gross Amounts Carried at Close of Period, Building and Improvements 2,315      
Gross Amounts Carried at Close of Period, Total 3,370      
Accumulated Depreciation (1,816)      
Total Costs, Net of Accumulated Depreciation 1,554      
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 656      
Gross Amounts Carried at Close of Period, Land 2,576      
Gross Amounts Carried at Close of Period, Building and Improvements 10,961      
Gross Amounts Carried at Close of Period, Total 13,537      
Accumulated Depreciation (5,067)      
Total Costs, Net of Accumulated Depreciation 8,470      
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 1,970      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 1,970      
Gross Amounts Carried at Close of Period, Total 1,970      
Accumulated Depreciation (708)      
Total Costs, Net of Accumulated Depreciation 1,262      
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 53,978      
Gross Amounts Carried at Close of Period, Land 3,960      
Gross Amounts Carried at Close of Period, Building and Improvements 60,448      
Gross Amounts Carried at Close of Period, Total 64,408      
Accumulated Depreciation (23,748)      
Total Costs, Net of Accumulated Depreciation 40,660      
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 541      
Gross Amounts Carried at Close of Period, Land 2,439      
Gross Amounts Carried at Close of Period, Building and Improvements 9,028      
Gross Amounts Carried at Close of Period, Total 11,467      
Accumulated Depreciation (2,403)      
Total Costs, Net of Accumulated Depreciation 9,064      
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 535      
Gross Amounts Carried at Close of Period, Land 678      
Gross Amounts Carried at Close of Period, Building and Improvements 11,717      
Gross Amounts Carried at Close of Period, Total 12,395      
Accumulated Depreciation (7,123)      
Total Costs, Net of Accumulated Depreciation 5,272      
Encumbrances $ (11,461)      
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 2,538      
Gross Amounts Carried at Close of Period, Land 19,351      
Gross Amounts Carried at Close of Period, Building and Improvements 34,165      
Gross Amounts Carried at Close of Period, Total 53,516      
Accumulated Depreciation (10,347)      
Total Costs, Net of Accumulated Depreciation 43,169      
Encumbrances $ (12,921)      
Date of Acquisition/Construction Jun. 11, 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 3,806      
Gross Amounts Carried at Close of Period, Land 6,150      
Gross Amounts Carried at Close of Period, Building and Improvements 26,709      
Gross Amounts Carried at Close of Period, Total 32,859      
Accumulated Depreciation (10,246)      
Total Costs, Net of Accumulated Depreciation 22,613      
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 8,715      
Gross Amounts Carried at Close of Period, Land 10,810      
Gross Amounts Carried at Close of Period, Building and Improvements 49,628      
Gross Amounts Carried at Close of Period, Total 60,438      
Accumulated Depreciation (21,000)      
Total Costs, Net of Accumulated Depreciation 39,438      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 01, 2004      
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 3,229      
Gross Amounts Carried at Close of Period, Land 2,261      
Gross Amounts Carried at Close of Period, Building and Improvements 10,478      
Gross Amounts Carried at Close of Period, Total 12,739      
Accumulated Depreciation (5,905)      
Total Costs, Net of Accumulated Depreciation 6,834      
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 1,927      
Gross Amounts Carried at Close of Period, Land 7,223      
Gross Amounts Carried at Close of Period, Building and Improvements 19,049      
Gross Amounts Carried at Close of Period, Total 26,272      
Accumulated Depreciation (7,972)      
Total Costs, Net of Accumulated Depreciation 18,300      
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 617      
Gross Amounts Carried at Close of Period, Land 1,889      
Gross Amounts Carried at Close of Period, Building and Improvements 23,782      
Gross Amounts Carried at Close of Period, Total 25,671      
Accumulated Depreciation (2,272)      
Total Costs, Net of Accumulated Depreciation 23,399      
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 1,590      
Gross Amounts Carried at Close of Period, Land 3,816      
Gross Amounts Carried at Close of Period, Building and Improvements 15,069      
Gross Amounts Carried at Close of Period, Total 18,885      
Accumulated Depreciation (5,540)      
Total Costs, Net of Accumulated Depreciation 13,345      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 13, 2007      
Centers [Member] | Madison Village Marketplace [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 3,157      
Initial Cost to Company, Building and Improvements 13,123      
Cost Capitalized Subsequent to Acquisition 115      
Gross Amounts Carried at Close of Period, Land 3,158      
Gross Amounts Carried at Close of Period, Building and Improvements 13,237      
Gross Amounts Carried at Close of Period, Total 16,395      
Accumulated Depreciation (311)      
Total Costs, Net of Accumulated Depreciation 16,084      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 28, 2019      
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 4,241      
Gross Amounts Carried at Close of Period, Land 1,415      
Gross Amounts Carried at Close of Period, Building and Improvements 9,846      
Gross Amounts Carried at Close of Period, Total 11,261      
Accumulated Depreciation (6,815)      
Total Costs, Net of Accumulated Depreciation 4,446      
Encumbrances $ 0      
Date of Acquisition/Construction Feb. 15, 1991      
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 1,092      
Gross Amounts Carried at Close of Period, Land 2,677      
Gross Amounts Carried at Close of Period, Building and Improvements 10,235      
Gross Amounts Carried at Close of Period, Total 12,912      
Accumulated Depreciation (3,949)      
Total Costs, Net of Accumulated Depreciation 8,963      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 13, 2008      
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 5,817      
Gross Amounts Carried at Close of Period, Land 755      
Gross Amounts Carried at Close of Period, Building and Improvements 6,605      
Gross Amounts Carried at Close of Period, Total 7,360      
Accumulated Depreciation (4,369)      
Total Costs, Net of Accumulated Depreciation 2,991      
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 1,578      
Gross Amounts Carried at Close of Period, Land 10,382      
Gross Amounts Carried at Close of Period, Building and Improvements 57,881      
Gross Amounts Carried at Close of Period, Total 68,263      
Accumulated Depreciation (16,169)      
Total Costs, Net of Accumulated Depreciation 52,094      
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 7,792      
Gross Amounts Carried at Close of Period, Land 7,617      
Gross Amounts Carried at Close of Period, Building and Improvements 32,715      
Gross Amounts Carried at Close of Period, Total 40,332      
Accumulated Depreciation (14,100)      
Total Costs, Net of Accumulated Depreciation 26,232      
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 9,644      
Gross Amounts Carried at Close of Period, Land 879      
Gross Amounts Carried at Close of Period, Building and Improvements 13,653      
Gross Amounts Carried at Close of Period, Total 14,532      
Accumulated Depreciation (9,616)      
Total Costs, Net of Accumulated Depreciation 4,916      
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 (682)      
Total Costs, Net of Accumulated Depreciation 510      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 01, 2010      
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 (3,685)      
Total Costs, Net of Accumulated Depreciation 5,912      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 04, 2002      
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 7,290      
Gross Amounts Carried at Close of Period, Land 1,358      
Gross Amounts Carried at Close of Period, Building and Improvements 9,418      
Gross Amounts Carried at Close of Period, Total 10,776      
Accumulated Depreciation (6,814)      
Total Costs, Net of Accumulated Depreciation 3,962      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 30, 1976      
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 8,494      
Gross Amounts Carried at Close of Period, Land 13,813      
Gross Amounts Carried at Close of Period, Building and Improvements 46,245      
Gross Amounts Carried at Close of Period, Total 60,058      
Accumulated Depreciation (16,548)      
Total Costs, Net of Accumulated Depreciation 43,510      
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 16,513      
Gross Amounts Carried at Close of Period, Land 9,264      
Gross Amounts Carried at Close of Period, Building and Improvements 54,304      
Gross Amounts Carried at Close of Period, Total 63,568      
Accumulated Depreciation (24,977)      
Total Costs, Net of Accumulated Depreciation 38,591      
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 (1,105)      
Total Costs, Net of Accumulated Depreciation 90      
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 5,202      
Gross Amounts Carried at Close of Period, Land 34,404      
Gross Amounts Carried at Close of Period, Building and Improvements 42,836      
Gross Amounts Carried at Close of Period, Total 77,240      
Accumulated Depreciation (16,708)      
Total Costs, Net of Accumulated Depreciation 60,532      
Encumbrances $ (29,616)      
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 28,515      
Gross Amounts Carried at Close of Period, Land 872      
Gross Amounts Carried at Close of Period, Building and Improvements 27,644      
Gross Amounts Carried at Close of Period, Total 28,516      
Accumulated Depreciation (15,768)      
Total Costs, Net of Accumulated Depreciation 12,748      
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 1,700      
Gross Amounts Carried at Close of Period, Land 1,773      
Gross Amounts Carried at Close of Period, Building and Improvements 4,878      
Gross Amounts Carried at Close of Period, Total 6,651      
Accumulated Depreciation (2,260)      
Total Costs, Net of Accumulated Depreciation 4,391      
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 (14,558)      
Total Costs, Net of Accumulated Depreciation 29,293      
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 2,409      
Gross Amounts Carried at Close of Period, Land 3,471      
Gross Amounts Carried at Close of Period, Building and Improvements 17,222      
Gross Amounts Carried at Close of Period, Total 20,693      
Accumulated Depreciation (7,125)      
Total Costs, Net of Accumulated Depreciation 13,568      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 19, 2004      
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 5,764      
Gross Amounts Carried at Close of Period, Land 2,768      
Gross Amounts Carried at Close of Period, Building and Improvements 16,746      
Gross Amounts Carried at Close of Period, Total 19,514      
Accumulated Depreciation (10,975)      
Total Costs, Net of Accumulated Depreciation 8,539      
Encumbrances $ (13,581)      
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 18,021      
Gross Amounts Carried at Close of Period, Land 10,983      
Gross Amounts Carried at Close of Period, Building and Improvements 19,075      
Gross Amounts Carried at Close of Period, Total 30,058      
Accumulated Depreciation (12,403)      
Total Costs, Net of Accumulated Depreciation 17,655      
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 6,141      
Gross Amounts Carried at Close of Period, Land 3,887      
Gross Amounts Carried at Close of Period, Building and Improvements 19,925      
Gross Amounts Carried at Close of Period, Total 23,812      
Accumulated Depreciation (8,918)      
Total Costs, Net of Accumulated Depreciation 14,894      
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 773      
Gross Amounts Carried at Close of Period, Land 1,166      
Gross Amounts Carried at Close of Period, Building and Improvements 5,415      
Gross Amounts Carried at Close of Period, Total 6,581      
Accumulated Depreciation (3,474)      
Total Costs, Net of Accumulated Depreciation 3,107      
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 761      
Gross Amounts Carried at Close of Period, Land 3,585      
Gross Amounts Carried at Close of Period, Building and Improvements 8,893      
Gross Amounts Carried at Close of Period, Total 12,478      
Accumulated Depreciation (6,033)      
Total Costs, Net of Accumulated Depreciation 6,445      
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 13,012      
Gross Amounts Carried at Close of Period, Land 3,317      
Gross Amounts Carried at Close of Period, Building and Improvements 11,950      
Gross Amounts Carried at Close of Period, Total 15,267      
Accumulated Depreciation (5,810)      
Total Costs, Net of Accumulated Depreciation 9,457      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 2003      
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 12,996      
Gross Amounts Carried at Close of Period, Land 14,037      
Gross Amounts Carried at Close of Period, Building and Improvements 1,905      
Gross Amounts Carried at Close of Period, Total 15,942      
Accumulated Depreciation (1,382)      
Total Costs, Net of Accumulated Depreciation 14,560      
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 26,306      
Gross Amounts Carried at Close of Period, Land 16,100      
Gross Amounts Carried at Close of Period, Building and Improvements 37,379      
Gross Amounts Carried at Close of Period, Total 53,479      
Accumulated Depreciation (18,013)      
Total Costs, Net of Accumulated Depreciation 35,466      
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 392      
Gross Amounts Carried at Close of Period, Land 1,363      
Gross Amounts Carried at Close of Period, Building and Improvements 2,329      
Gross Amounts Carried at Close of Period, Total 3,692      
Accumulated Depreciation (2,044)      
Total Costs, Net of Accumulated Depreciation 1,648      
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 $ 3,320      
Initial Cost to Company, Building and Improvements 17,741      
Cost Capitalized Subsequent to Acquisition 35,242      
Gross Amounts Carried at Close of Period, Land 3,993      
Gross Amounts Carried at Close of Period, Building and Improvements 52,310      
Gross Amounts Carried at Close of Period, Total 56,303      
Accumulated Depreciation (29,007)      
Total Costs, Net of Accumulated Depreciation 27,296      
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 26,705      
Gross Amounts Carried at Close of Period, Land 11,819      
Gross Amounts Carried at Close of Period, Building and Improvements 47,826      
Gross Amounts Carried at Close of Period, Total 59,645      
Accumulated Depreciation (15,461)      
Total Costs, Net of Accumulated Depreciation 44,184      
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 6,903      
Gross Amounts Carried at Close of Period, Land 7,103      
Gross Amounts Carried at Close of Period, Building and Improvements 27,383      
Gross Amounts Carried at Close of Period, Total 34,486      
Accumulated Depreciation (10,300)      
Total Costs, Net of Accumulated Depreciation 24,186      
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 1,480      
Gross Amounts Carried at Close of Period, Land 7,625      
Gross Amounts Carried at Close of Period, Building and Improvements 20,053      
Gross Amounts Carried at Close of Period, Total 27,678      
Accumulated Depreciation (6,862)      
Total Costs, Net of Accumulated Depreciation 20,816      
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 1,394      
Gross Amounts Carried at Close of Period, Land 1,358      
Gross Amounts Carried at Close of Period, Building and Improvements 6,835      
Gross Amounts Carried at Close of Period, Total 8,193      
Accumulated Depreciation (3,110)      
Total Costs, Net of Accumulated Depreciation 5,083      
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 39,756      
Gross Amounts Carried at Close of Period, Land 12,914      
Gross Amounts Carried at Close of Period, Building and Improvements 30,083      
Gross Amounts Carried at Close of Period, Total 42,997      
Accumulated Depreciation (7,405)      
Total Costs, Net of Accumulated Depreciation 35,592      
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 1,848      
Gross Amounts Carried at Close of Period, Land 21,586      
Gross Amounts Carried at Close of Period, Building and Improvements 30,917      
Gross Amounts Carried at Close of Period, Total 52,503      
Accumulated Depreciation (2,957)      
Total Costs, Net of Accumulated Depreciation 49,546      
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 2,356      
Gross Amounts Carried at Close of Period, Land 11,977      
Gross Amounts Carried at Close of Period, Building and Improvements 6,575      
Gross Amounts Carried at Close of Period, Total 18,552      
Accumulated Depreciation (2,154)      
Total Costs, Net of Accumulated Depreciation 16,398      
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 1,797      
Gross Amounts Carried at Close of Period, Land 3,290      
Gross Amounts Carried at Close of Period, Building and Improvements 7,262      
Gross Amounts Carried at Close of Period, Total 10,552      
Accumulated Depreciation (2,931)      
Total Costs, Net of Accumulated Depreciation 7,621      
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 13,153      
Gross Amounts Carried at Close of Period, Land 3,332      
Gross Amounts Carried at Close of Period, Building and Improvements 16,024      
Gross Amounts Carried at Close of Period, Total 19,356      
Accumulated Depreciation (9,438)      
Total Costs, Net of Accumulated Depreciation 9,918      
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 (2,950)      
Total Costs, Net of Accumulated Depreciation 10,859      
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 272      
Gross Amounts Carried at Close of Period, Land 1,202      
Gross Amounts Carried at Close of Period, Building and Improvements 1,216      
Gross Amounts Carried at Close of Period, Total 2,418      
Accumulated Depreciation (540)      
Total Costs, Net of Accumulated Depreciation 1,878      
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 11,448      
Gross Amounts Carried at Close of Period, Land 10,587      
Gross Amounts Carried at Close of Period, Building and Improvements 16,379      
Gross Amounts Carried at Close of Period, Total 26,966      
Accumulated Depreciation (11,868)      
Total Costs, Net of Accumulated Depreciation 15,098      
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 9,876      
Gross Amounts Carried at Close of Period, Land 3,228      
Gross Amounts Carried at Close of Period, Building and Improvements 22,803      
Gross Amounts Carried at Close of Period, Total 26,031      
Accumulated Depreciation (8,624)      
Total Costs, Net of Accumulated Depreciation 17,407      
Encumbrances $ 0      
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 (16,531)      
Total Costs, Net of Accumulated Depreciation 23,574      
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 3,353      
Gross Amounts Carried at Close of Period, Land 4,333      
Gross Amounts Carried at Close of Period, Building and Improvements 20,706      
Gross Amounts Carried at Close of Period, Total 25,039      
Accumulated Depreciation (10,656)      
Total Costs, Net of Accumulated Depreciation 14,383      
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 777      
Gross Amounts Carried at Close of Period, Land 231      
Gross Amounts Carried at Close of Period, Building and Improvements 9,167      
Gross Amounts Carried at Close of Period, Total 9,398      
Accumulated Depreciation (6,227)      
Total Costs, Net of Accumulated Depreciation 3,171      
Encumbrances $ (6,353)      
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 3,563      
Gross Amounts Carried at Close of Period, Land 818      
Gross Amounts Carried at Close of Period, Building and Improvements 6,827      
Gross Amounts Carried at Close of Period, Total 7,645      
Accumulated Depreciation (4,389)      
Total Costs, Net of Accumulated Depreciation 3,256      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 20, 1994      
Centers [Member] | Stevens Creek Central [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 41,812      
Initial Cost to Company, Building and Improvements 45,997      
Cost Capitalized Subsequent to Acquisition 0      
Gross Amounts Carried at Close of Period, Land 41,812      
Gross Amounts Carried at Close of Period, Building and Improvements 45,997      
Gross Amounts Carried at Close of Period, Total 87,809      
Accumulated Depreciation (169)      
Total Costs, Net of Accumulated Depreciation 87,640      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 08, 2019      
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 2,877      
Gross Amounts Carried at Close of Period, Land 4,740      
Gross Amounts Carried at Close of Period, Building and Improvements 21,878      
Gross Amounts Carried at Close of Period, Total 26,618      
Accumulated Depreciation (10,528)      
Total Costs, Net of Accumulated Depreciation 16,090      
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 11,401      
Gross Amounts Carried at Close of Period, Land 3,453      
Gross Amounts Carried at Close of Period, Building and Improvements 25,394      
Gross Amounts Carried at Close of Period, Total 28,847      
Accumulated Depreciation (13,411)      
Total Costs, Net of Accumulated Depreciation 15,436      
Encumbrances $ 0      
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 25,410      
Gross Amounts Carried at Close of Period, Land 5,899      
Gross Amounts Carried at Close of Period, Building and Improvements 47,106      
Gross Amounts Carried at Close of Period, Total 53,005      
Accumulated Depreciation (13,421)      
Total Costs, Net of Accumulated Depreciation 39,584      
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 25,591      
Gross Amounts Carried at Close of Period, Land 17,822      
Gross Amounts Carried at Close of Period, Building and Improvements 21,615      
Gross Amounts Carried at Close of Period, Total 39,437      
Accumulated Depreciation (14,868)      
Total Costs, Net of Accumulated Depreciation 24,569      
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 4,064      
Gross Amounts Carried at Close of Period, Land 4,988      
Gross Amounts Carried at Close of Period, Building and Improvements 22,970      
Gross Amounts Carried at Close of Period, Total 27,958      
Accumulated Depreciation (10,210)      
Total Costs, Net of Accumulated Depreciation 17,748      
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 8,181      
Gross Amounts Carried at Close of Period, Land 79,673      
Gross Amounts Carried at Close of Period, Building and Improvements 180,544      
Gross Amounts Carried at Close of Period, Total 260,217      
Accumulated Depreciation (20,529)      
Total Costs, Net of Accumulated Depreciation 239,688      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 27, 2016      
Centers [Member] | The Shops At Hilshire Village [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 12,929      
Initial Cost to Company, Building and Improvements 20,666      
Cost Capitalized Subsequent to Acquisition 0      
Gross Amounts Carried at Close of Period, Land 12,929      
Gross Amounts Carried at Close of Period, Building and Improvements 20,666      
Gross Amounts Carried at Close of Period, Total 33,595      
Accumulated Depreciation (141)      
Total Costs, Net of Accumulated Depreciation 33,454      
Encumbrances $ 0      
Date of Acquisition/Construction Oct. 24, 2019      
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 558      
Gross Amounts Carried at Close of Period, Land 14,952      
Gross Amounts Carried at Close of Period, Building and Improvements 10,908      
Gross Amounts Carried at Close of Period, Total 25,860      
Accumulated Depreciation (1,282)      
Total Costs, Net of Accumulated Depreciation 24,578      
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 (165)      
Total Costs, Net of Accumulated Depreciation 1,064      
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 1,190      
Gross Amounts Carried at Close of Period, Land 2,973      
Gross Amounts Carried at Close of Period, Building and Improvements 14,332      
Gross Amounts Carried at Close of Period, Total 17,305      
Accumulated Depreciation (6,364)      
Total Costs, Net of Accumulated Depreciation 10,941      
Encumbrances $ (11,595)      
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 4,268      
Gross Amounts Carried at Close of Period, Land 3,430      
Gross Amounts Carried at Close of Period, Building and Improvements 23,521      
Gross Amounts Carried at Close of Period, Total 26,951      
Accumulated Depreciation (9,756)      
Total Costs, Net of Accumulated Depreciation 17,195      
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 26,559      
Gross Amounts Carried at Close of Period, Land 6,726      
Gross Amounts Carried at Close of Period, Building and Improvements 29,711      
Gross Amounts Carried at Close of Period, Total 36,437      
Accumulated Depreciation (15,395)      
Total Costs, Net of Accumulated Depreciation 21,042      
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 2,803      
Gross Amounts Carried at Close of Period, Land 9,855      
Gross Amounts Carried at Close of Period, Building and Improvements 31,936      
Gross Amounts Carried at Close of Period, Total 41,791      
Accumulated Depreciation (4,255)      
Total Costs, Net of Accumulated Depreciation 37,536      
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 5,298      
Gross Amounts Carried at Close of Period, Land 8,910      
Gross Amounts Carried at Close of Period, Building and Improvements 14,417      
Gross Amounts Carried at Close of Period, Total 23,327      
Accumulated Depreciation (4,258)      
Total Costs, Net of Accumulated Depreciation 19,069      
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 2,631      
Gross Amounts Carried at Close of Period, Land 3,044      
Gross Amounts Carried at Close of Period, Building and Improvements 14,857      
Gross Amounts Carried at Close of Period, Total 17,901      
Accumulated Depreciation (6,660)      
Total Costs, Net of Accumulated Depreciation 11,241      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 18, 2002      
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 3,179      
Gross Amounts Carried at Close of Period, Land 16,500      
Gross Amounts Carried at Close of Period, Building and Improvements 35,668      
Gross Amounts Carried at Close of Period, Total 52,168      
Accumulated Depreciation (4,773)      
Total Costs, Net of Accumulated Depreciation 47,395      
Encumbrances $ (17,338)      
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 1,082      
Gross Amounts Carried at Close of Period, Land 3,269      
Gross Amounts Carried at Close of Period, Building and Improvements 19,895      
Gross Amounts Carried at Close of Period, Total 23,164      
Accumulated Depreciation (8,158)      
Total Costs, Net of Accumulated Depreciation 15,006      
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 13,611      
Gross Amounts Carried at Close of Period, Land 3,189      
Gross Amounts Carried at Close of Period, Building and Improvements 21,427      
Gross Amounts Carried at Close of Period, Total 24,616      
Accumulated Depreciation (14,532)      
Total Costs, Net of Accumulated Depreciation 10,084      
Encumbrances $ (15,527)      
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 6,679      
Gross Amounts Carried at Close of Period, Land 437      
Gross Amounts Carried at Close of Period, Building and Improvements 9,652      
Gross Amounts Carried at Close of Period, Total 10,089      
Accumulated Depreciation (6,206)      
Total Costs, Net of Accumulated Depreciation 3,883      
Encumbrances $ 0      
Date of Acquisition/Construction May 01, 1958      
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 10,117      
Gross Amounts Carried at Close of Period, Land 11,204      
Gross Amounts Carried at Close of Period, Building and Improvements 54,999      
Gross Amounts Carried at Close of Period, Total 66,203      
Accumulated Depreciation (27,707)      
Total Costs, Net of Accumulated Depreciation 38,496      
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 13,490      
Gross Amounts Carried at Close of Period, Land 2,257      
Gross Amounts Carried at Close of Period, Building and Improvements 22,028      
Gross Amounts Carried at Close of Period, Total 24,285      
Accumulated Depreciation (5,667)      
Total Costs, Net of Accumulated Depreciation 18,618      
Encumbrances $ 0      
Date of Acquisition/Construction Sep. 06, 2001      
Centers [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 3,386      
Gross Amounts Carried at Close of Period, Land 5,315      
Gross Amounts Carried at Close of Period, Building and Improvements 22,703      
Gross Amounts Carried at Close of Period, Total 28,018      
Accumulated Depreciation (1,318)      
Total Costs, Net of Accumulated Depreciation 26,700      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 01, 2019      
New Development/Redevelopment [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 39,243      
Initial Cost to Company, Building and Improvements 2,669      
Cost Capitalized Subsequent to Acquisition 205,924      
Gross Amounts Carried at Close of Period, Land 46,427      
Gross Amounts Carried at Close of Period, Building and Improvements 201,409      
Gross Amounts Carried at Close of Period, Total 247,836      
Accumulated Depreciation 0      
Total Costs, Net of Accumulated Depreciation 247,836      
Encumbrances 0      
New Development/Redevelopment [Member] | The Driscoll At River Oaks [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land 214      
Initial Cost to Company, Building and Improvements 0      
Cost Capitalized Subsequent to Acquisition 70,096      
Gross Amounts Carried at Close of Period, Land 790      
Gross Amounts Carried at Close of Period, Building and Improvements 69,520      
Gross Amounts Carried at Close of Period, Total 70,310      
Accumulated Depreciation 0      
Total Costs, Net of Accumulated Depreciation 70,310      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 04, 1992      
New Development/Redevelopment [Member] | West Alex [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 39,029      
Initial Cost to Company, Building and Improvements 2,669      
Cost Capitalized Subsequent to Acquisition 135,828      
Gross Amounts Carried at Close of Period, Land 45,637      
Gross Amounts Carried at Close of Period, Building and Improvements 131,889      
Gross Amounts Carried at Close of Period, Total 177,526      
Accumulated Depreciation 0      
Total Costs, Net of Accumulated Depreciation 177,526      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 01, 2016      
Secured Debt [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Fixed rate mortgage debt excluded from amount of encumbrances $ 17,400      
Non-cash debt 1,500      
Deferred finance costs $ (700)