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Real Estate And Accumulated Depreciation (Details)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
USD ($)
center
Dec. 31, 2016
USD ($)
center
Dec. 31, 2015
USD ($)
Dec. 31, 2014
USD ($)
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,139,860      
Initial Cost to Company, Building and Improvements 2,442,248      
Cost Capitalized Subsequent to Acquisition 916,751      
Gross Amounts Carried at Close of Period, Land 1,186,212      
Gross Amounts Carried at Close of Period, Building and Improvements 3,312,647      
Gross Amounts Carried at Close of Period, Total 4,498,859 $ 4,789,145 $ 4,262,959 $ 4,076,094
Accumulated Depreciation (1,166,126) (1,184,546) $ (1,087,642) $ (1,028,619)
Total Costs, Net of Accumulated Depreciation 3,332,733      
Encumbrances (360,110)      
Fixed assets book value in excess of (less than) tax basis $ 193,400 $ 268,700    
Number of real estate properties | center 2 2    
Non-cash debt $ 4,000      
Deferred finance costs $ (8,900)      
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 $ 136,434      
Initial Cost to Company, Building and Improvements 10,310      
Cost Capitalized Subsequent to Acquisition 26,842      
Gross Amounts Carried at Close of Period, Land 92,430      
Gross Amounts Carried at Close of Period, Building and Improvements 81,156      
Gross Amounts Carried at Close of Period, Total 173,586      
Accumulated Depreciation (34,382)      
Total Costs, Net of Accumulated Depreciation 139,204      
Encumbrances 0      
Centers [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land 956,026      
Initial Cost to Company, Building and Improvements 2,409,874      
Cost Capitalized Subsequent to Acquisition 857,210      
Gross Amounts Carried at Close of Period, Land 1,043,996      
Gross Amounts Carried at Close of Period, Building and Improvements 3,179,114      
Gross Amounts Carried at Close of Period, Total 4,223,110      
Accumulated Depreciation (1,131,628)      
Total Costs, Net of Accumulated Depreciation 3,091,482      
Encumbrances (360,110)      
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 1,214      
Gross Amounts Carried at Close of Period, Land 1,791      
Gross Amounts Carried at Close of Period, Building and Improvements 8,684      
Gross Amounts Carried at Close of Period, Total 10,475      
Accumulated Depreciation (7,396)      
Total Costs, Net of Accumulated Depreciation 3,079      
Encumbrances $ (5,624)      
Date of Acquisition/Construction Mar. 20, 2008      
Centers [Member] | 1919 North Loop West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,334      
Initial Cost to Company, Building and Improvements 8,451      
Cost Capitalized Subsequent to Acquisition 12,906      
Gross Amounts Carried at Close of Period, Land 1,337      
Gross Amounts Carried at Close of Period, Building and Improvements 21,354      
Gross Amounts Carried at Close of Period, Total 22,691      
Accumulated Depreciation (11,448)      
Total Costs, Net of Accumulated Depreciation 11,243      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 05, 2006      
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 3,918      
Gross Amounts Carried at Close of Period, Land 3,889      
Gross Amounts Carried at Close of Period, Building and Improvements 19,491      
Gross Amounts Carried at Close of Period, Total 23,380      
Accumulated Depreciation (8,467)      
Total Costs, Net of Accumulated Depreciation 14,913      
Encumbrances $ (15,246)      
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 6,642      
Gross Amounts Carried at Close of Period, Land 18,320      
Gross Amounts Carried at Close of Period, Building and Improvements 80,073      
Gross Amounts Carried at Close of Period, Total 98,393      
Accumulated Depreciation (13,475)      
Total Costs, Net of Accumulated Depreciation 84,918      
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 7,870      
Gross Amounts Carried at Close of Period, Land 1,062      
Gross Amounts Carried at Close of Period, Building and Improvements 9,471      
Gross Amounts Carried at Close of Period, Total 10,533      
Accumulated Depreciation (5,458)      
Total Costs, Net of Accumulated Depreciation 5,075      
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 5,416      
Gross Amounts Carried at Close of Period, Land 4,526      
Gross Amounts Carried at Close of Period, Building and Improvements 23,517      
Gross Amounts Carried at Close of Period, Total 28,043      
Accumulated Depreciation (10,116)      
Total Costs, Net of Accumulated Depreciation 17,927      
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 1,466      
Gross Amounts Carried at Close of Period, Land 1,952      
Gross Amounts Carried at Close of Period, Building and Improvements 9,280      
Gross Amounts Carried at Close of Period, Total 11,232      
Accumulated Depreciation (4,225)      
Total Costs, Net of Accumulated Depreciation 7,007      
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 3,655      
Gross Amounts Carried at Close of Period, Land 10,623      
Gross Amounts Carried at Close of Period, Building and Improvements 33,962      
Gross Amounts Carried at Close of Period, Total 44,585      
Accumulated Depreciation (3,342)      
Total Costs, Net of Accumulated Depreciation 41,243      
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 (38)      
Total Costs, Net of Accumulated Depreciation 1,059      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 13, 2008      
Centers [Member] | Best In The West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 13,191      
Initial Cost to Company, Building and Improvements 77,159      
Cost Capitalized Subsequent to Acquisition 7,817      
Gross Amounts Carried at Close of Period, Land 13,194      
Gross Amounts Carried at Close of Period, Building and Improvements 84,973      
Gross Amounts Carried at Close of Period, Total 98,167      
Accumulated Depreciation (29,385)      
Total Costs, Net of Accumulated Depreciation 68,782      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 28, 2005      
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 1,970      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 6,700      
Gross Amounts Carried at Close of Period, Total 6,700      
Accumulated Depreciation (5,202)      
Total Costs, Net of Accumulated Depreciation 1,498      
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 5,667      
Gross Amounts Carried at Close of Period, Land 3,651      
Gross Amounts Carried at Close of Period, Building and Improvements 20,398      
Gross Amounts Carried at Close of Period, Total 24,049      
Accumulated Depreciation (7,741)      
Total Costs, Net of Accumulated Depreciation 16,308      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 17, 2001      
Centers [Member] | Braeswood Square Shopping Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 0      
Initial Cost to Company, Building and Improvements 1,421      
Cost Capitalized Subsequent to Acquisition 1,350      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 2,771      
Gross Amounts Carried at Close of Period, Total 2,771      
Accumulated Depreciation (2,397)      
Total Costs, Net of Accumulated Depreciation 374      
Encumbrances $ 0      
Date of Acquisition/Construction May 28, 1969      
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 2,044      
Gross Amounts Carried at Close of Period, Land 906      
Gross Amounts Carried at Close of Period, Building and Improvements 5,673      
Gross Amounts Carried at Close of Period, Total 6,579      
Accumulated Depreciation (3,400)      
Total Costs, Net of Accumulated Depreciation 3,179      
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 7,428      
Gross Amounts Carried at Close of Period, Land 7,511      
Gross Amounts Carried at Close of Period, Building and Improvements 22,101      
Gross Amounts Carried at Close of Period, Total 29,612      
Accumulated Depreciation (6,520)      
Total Costs, Net of Accumulated Depreciation 23,092      
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 328      
Gross Amounts Carried at Close of Period, Land 1,333      
Gross Amounts Carried at Close of Period, Building and Improvements 5,864      
Gross Amounts Carried at Close of Period, Total 7,197      
Accumulated Depreciation (1,852)      
Total Costs, Net of Accumulated Depreciation 5,345      
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 817      
Gross Amounts Carried at Close of Period, Land 930      
Gross Amounts Carried at Close of Period, Building and Improvements 7,468      
Gross Amounts Carried at Close of Period, Total 8,398      
Accumulated Depreciation (2,408)      
Total Costs, Net of Accumulated Depreciation 5,990      
Encumbrances $ (3,394)      
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 104      
Gross Amounts Carried at Close of Period, Land 48,851      
Gross Amounts Carried at Close of Period, Building and Improvements 1,145      
Gross Amounts Carried at Close of Period, Total 49,996      
Accumulated Depreciation (938)      
Total Costs, Net of Accumulated Depreciation 49,058      
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 1,244      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 9,964      
Gross Amounts Carried at Close of Period, Total 9,964      
Accumulated Depreciation (5,925)      
Total Costs, Net of Accumulated Depreciation 4,039      
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 1,758      
Gross Amounts Carried at Close of Period, Land 4,697      
Gross Amounts Carried at Close of Period, Building and Improvements 35,266      
Gross Amounts Carried at Close of Period, Total 39,963      
Accumulated Depreciation (10,404)      
Total Costs, Net of Accumulated Depreciation 29,559      
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 1,482      
Gross Amounts Carried at Close of Period, Land 1,852      
Gross Amounts Carried at Close of Period, Building and Improvements 8,888      
Gross Amounts Carried at Close of Period, Total 10,740      
Accumulated Depreciation (4,280)      
Total Costs, Net of Accumulated Depreciation 6,460      
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 3,504      
Gross Amounts Carried at Close of Period, Land 914      
Gross Amounts Carried at Close of Period, Building and Improvements 7,164      
Gross Amounts Carried at Close of Period, Total 8,078      
Accumulated Depreciation (2,924)      
Total Costs, Net of Accumulated Depreciation 5,154      
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 3,180      
Gross Amounts Carried at Close of Period, Land 23,210      
Gross Amounts Carried at Close of Period, Building and Improvements 40,077      
Gross Amounts Carried at Close of Period, Total 63,287      
Accumulated Depreciation (12,025)      
Total Costs, Net of Accumulated Depreciation 51,262      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 20, 2006      
Centers [Member] | Cherry Creek Retail Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 5,416      
Initial Cost to Company, Building and Improvements 14,624      
Cost Capitalized Subsequent to Acquisition 463      
Gross Amounts Carried at Close of Period, Land 5,416      
Gross Amounts Carried at Close of Period, Building and Improvements 15,087      
Gross Amounts Carried at Close of Period, Total 20,503      
Accumulated Depreciation (4,321)      
Total Costs, Net of Accumulated Depreciation 16,182      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 16, 2011      
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 12,786      
Gross Amounts Carried at Close of Period, Land 7,234      
Gross Amounts Carried at Close of Period, Building and Improvements 41,642      
Gross Amounts Carried at Close of Period, Total 48,876      
Accumulated Depreciation (21,094)      
Total Costs, Net of Accumulated Depreciation 27,782      
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 8,893      
Gross Amounts Carried at Close of Period, Land 534      
Gross Amounts Carried at Close of Period, Building and Improvements 17,763      
Gross Amounts Carried at Close of Period, Total 18,297      
Accumulated Depreciation (14,553)      
Total Costs, Net of Accumulated Depreciation 3,744      
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 7,808      
Gross Amounts Carried at Close of Period, Land 2,641      
Gross Amounts Carried at Close of Period, Building and Improvements 16,213      
Gross Amounts Carried at Close of Period, Total 18,854      
Accumulated Depreciation (12,536)      
Total Costs, Net of Accumulated Depreciation 6,318      
Encumbrances $ (11,004)      
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 15,021      
Gross Amounts Carried at Close of Period, Land 10,813      
Gross Amounts Carried at Close of Period, Building and Improvements 58,248      
Gross Amounts Carried at Close of Period, Total 69,061      
Accumulated Depreciation (29,114)      
Total Costs, Net of Accumulated Depreciation 39,947      
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 10,466      
Gross Amounts Carried at Close of Period, Land 15,559      
Gross Amounts Carried at Close of Period, Building and Improvements 40,248      
Gross Amounts Carried at Close of Period, Total 55,807      
Accumulated Depreciation (13,286)      
Total Costs, Net of Accumulated Depreciation 42,521      
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 2,160      
Gross Amounts Carried at Close of Period, Land 1,730      
Gross Amounts Carried at Close of Period, Building and Improvements 9,091      
Gross Amounts Carried at Close of Period, Total 10,821      
Accumulated Depreciation (4,586)      
Total Costs, Net of Accumulated Depreciation 6,235      
Encumbrances $ (7,386)      
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 223      
Gross Amounts Carried at Close of Period, Land 6,400      
Gross Amounts Carried at Close of Period, Building and Improvements 23,607      
Gross Amounts Carried at Close of Period, Total 30,007      
Accumulated Depreciation (1,359)      
Total Costs, Net of Accumulated Depreciation 28,648      
Encumbrances $ (14,277)      
Date of Acquisition/Construction Feb. 12, 2016      
Centers [Member] | Cullen Plaza Shopping Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 106      
Initial Cost to Company, Building and Improvements 2,841      
Cost Capitalized Subsequent to Acquisition 497      
Gross Amounts Carried at Close of Period, Land 106      
Gross Amounts Carried at Close of Period, Building and Improvements 3,338      
Gross Amounts Carried at Close of Period, Total 3,444      
Accumulated Depreciation (2,755)      
Total Costs, Net of Accumulated Depreciation 689      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 20, 2008      
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 1,188      
Gross Amounts Carried at Close of Period, Land 3,793      
Gross Amounts Carried at Close of Period, Building and Improvements 9,563      
Gross Amounts Carried at Close of Period, Total 13,356      
Accumulated Depreciation (6,373)      
Total Costs, Net of Accumulated Depreciation 6,983      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 04, 2002      
Centers [Member] | Dallas Commons Shopping Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,582      
Initial Cost to Company, Building and Improvements 4,969      
Cost Capitalized Subsequent to Acquisition 160      
Gross Amounts Carried at Close of Period, Land 1,582      
Gross Amounts Carried at Close of Period, Building and Improvements 5,129      
Gross Amounts Carried at Close of Period, Total 6,711      
Accumulated Depreciation (1,496)      
Total Costs, Net of Accumulated Depreciation 5,215      
Encumbrances $ 0      
Date of Acquisition/Construction Sep. 14, 2006      
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 2,243      
Gross Amounts Carried at Close of Period, Land 37,128      
Gross Amounts Carried at Close of Period, Building and Improvements 69,958      
Gross Amounts Carried at Close of Period, Total 107,086      
Accumulated Depreciation (4,474)      
Total Costs, Net of Accumulated Depreciation 102,612      
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 2,094      
Gross Amounts Carried at Close of Period, Land 3,362      
Gross Amounts Carried at Close of Period, Building and Improvements 17,063      
Gross Amounts Carried at Close of Period, Total 20,425      
Accumulated Depreciation (3,518)      
Total Costs, Net of Accumulated Depreciation 16,907      
Encumbrances $ 0      
Date of Acquisition/Construction Oct. 28, 2010      
Centers [Member] | Eastern Commons [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 10,282      
Initial Cost to Company, Building and Improvements 16      
Cost Capitalized Subsequent to Acquisition 327      
Gross Amounts Carried at Close of Period, Land 1,569      
Gross Amounts Carried at Close of Period, Building and Improvements 9,056      
Gross Amounts Carried at Close of Period, Total 10,625      
Accumulated Depreciation (5,370)      
Total Costs, Net of Accumulated Depreciation 5,255      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 2002      
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 685      
Gross Amounts Carried at Close of Period, Land 4,821      
Gross Amounts Carried at Close of Period, Building and Improvements 11,910      
Gross Amounts Carried at Close of Period, Total 16,731      
Accumulated Depreciation (2,651)      
Total Costs, Net of Accumulated Depreciation 14,080      
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 4,896      
Gross Amounts Carried at Close of Period, Land 4,429      
Gross Amounts Carried at Close of Period, Building and Improvements 25,455      
Gross Amounts Carried at Close of Period, Total 29,884      
Accumulated Depreciation (10,144)      
Total Costs, Net of Accumulated Depreciation 19,740      
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 2,353      
Gross Amounts Carried at Close of Period, Land 2,803      
Gross Amounts Carried at Close of Period, Building and Improvements 13,621      
Gross Amounts Carried at Close of Period, Total 16,424      
Accumulated Depreciation (5,075)      
Total Costs, Net of Accumulated Depreciation 11,349      
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 2,187      
Gross Amounts Carried at Close of Period, Land 6,115      
Gross Amounts Carried at Close of Period, Building and Improvements 12,624      
Gross Amounts Carried at Close of Period, Total 18,739      
Accumulated Depreciation (4,392)      
Total Costs, Net of Accumulated Depreciation 14,347      
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 (3,436)      
Total Costs, Net of Accumulated Depreciation 2,110      
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 1,094      
Gross Amounts Carried at Close of Period, Land 3,542      
Gross Amounts Carried at Close of Period, Building and Improvements 15,376      
Gross Amounts Carried at Close of Period, Total 18,918      
Accumulated Depreciation (5,964)      
Total Costs, Net of Accumulated Depreciation 12,954      
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 4,248      
Gross Amounts Carried at Close of Period, Land 5,022      
Gross Amounts Carried at Close of Period, Building and Improvements 18,250      
Gross Amounts Carried at Close of Period, Total 23,272      
Accumulated Depreciation (7,090)      
Total Costs, Net of Accumulated Depreciation 16,182      
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 8,963      
Gross Amounts Carried at Close of Period, Land 12,769      
Gross Amounts Carried at Close of Period, Building and Improvements 37,809      
Gross Amounts Carried at Close of Period, Total 50,578      
Accumulated Depreciation (14,756)      
Total Costs, Net of Accumulated Depreciation 35,822      
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 1,742      
Gross Amounts Carried at Close of Period, Land 1,095      
Gross Amounts Carried at Close of Period, Building and Improvements 7,242      
Gross Amounts Carried at Close of Period, Total 8,337      
Accumulated Depreciation (4,458)      
Total Costs, Net of Accumulated Depreciation 3,879      
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 4,960      
Gross Amounts Carried at Close of Period, Land 2,403      
Gross Amounts Carried at Close of Period, Building and Improvements 12,553      
Gross Amounts Carried at Close of Period, Total 14,956      
Accumulated Depreciation (9,643)      
Total Costs, Net of Accumulated Depreciation 5,313      
Encumbrances $ (9,996)      
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 5,970      
Gross Amounts Carried at Close of Period, Land 6,944      
Gross Amounts Carried at Close of Period, Building and Improvements 17,257      
Gross Amounts Carried at Close of Period, Total 24,201      
Accumulated Depreciation (6,646)      
Total Costs, Net of Accumulated Depreciation 17,555      
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 8,589      
Gross Amounts Carried at Close of Period, Land 10,504      
Gross Amounts Carried at Close of Period, Building and Improvements 19,219      
Gross Amounts Carried at Close of Period, Total 29,723      
Accumulated Depreciation (5,559)      
Total Costs, Net of Accumulated Depreciation 24,164      
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 5,931      
Gross Amounts Carried at Close of Period, Land 3,279      
Gross Amounts Carried at Close of Period, Building and Improvements 10,887      
Gross Amounts Carried at Close of Period, Total 14,166      
Accumulated Depreciation (8,733)      
Total Costs, Net of Accumulated Depreciation 5,433      
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 5,361      
Gross Amounts Carried at Close of Period, Land 4,808      
Gross Amounts Carried at Close of Period, Building and Improvements 24,614      
Gross Amounts Carried at Close of Period, Total 29,422      
Accumulated Depreciation (10,684)      
Total Costs, Net of Accumulated Depreciation 18,738      
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 496      
Gross Amounts Carried at Close of Period, Land 3,163      
Gross Amounts Carried at Close of Period, Building and Improvements 9,536      
Gross Amounts Carried at Close of Period, Total 12,699      
Accumulated Depreciation (3,195)      
Total Costs, Net of Accumulated Depreciation 9,504      
Encumbrances $ (4,612)      
Date of Acquisition/Construction Nov. 09, 2004      
Centers [Member] | Green Valley Ranch - Auto Zone [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 440      
Initial Cost to Company, Building and Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Gross Amounts Carried at Close of Period, Land 440      
Gross Amounts Carried at Close of Period, Building and Improvements 0      
Gross Amounts Carried at Close of Period, Total 440      
Accumulated Depreciation 0      
Total Costs, Net of Accumulated Depreciation 440      
Encumbrances $ 0      
Date of Acquisition/Construction Feb. 12, 2016      
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 4,166      
Gross Amounts Carried at Close of Period, Land 4,750      
Gross Amounts Carried at Close of Period, Building and Improvements 26,794      
Gross Amounts Carried at Close of Period, Total 31,544      
Accumulated Depreciation (10,259)      
Total Costs, Net of Accumulated Depreciation 21,285      
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 478      
Gross Amounts Carried at Close of Period, Land 257      
Gross Amounts Carried at Close of Period, Building and Improvements 2,781      
Gross Amounts Carried at Close of Period, Total 3,038      
Accumulated Depreciation (1,862)      
Total Costs, Net of Accumulated Depreciation 1,176      
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 1,083      
Gross Amounts Carried at Close of Period, Land 1,278      
Gross Amounts Carried at Close of Period, Building and Improvements 5,007      
Gross Amounts Carried at Close of Period, Total 6,285      
Accumulated Depreciation (4,271)      
Total Costs, Net of Accumulated Depreciation 2,014      
Encumbrances $ (8,132)      
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 (1,098)      
Total Costs, Net of Accumulated Depreciation 4,853      
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 2,596      
Gross Amounts Carried at Close of Period, Land 1,055      
Gross Amounts Carried at Close of Period, Building and Improvements 2,298      
Gross Amounts Carried at Close of Period, Total 3,353      
Accumulated Depreciation (1,622)      
Total Costs, Net of Accumulated Depreciation 1,731      
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 553      
Gross Amounts Carried at Close of Period, Land 2,576      
Gross Amounts Carried at Close of Period, Building and Improvements 10,858      
Gross Amounts Carried at Close of Period, Total 13,434      
Accumulated Depreciation (4,496)      
Total Costs, Net of Accumulated Depreciation 8,938      
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 1,887      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 1,887      
Gross Amounts Carried at Close of Period, Total 1,887      
Accumulated Depreciation (610)      
Total Costs, Net of Accumulated Depreciation 1,277      
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 53,872      
Gross Amounts Carried at Close of Period, Land 3,960      
Gross Amounts Carried at Close of Period, Building and Improvements 60,342      
Gross Amounts Carried at Close of Period, Total 64,302      
Accumulated Depreciation (13,553)      
Total Costs, Net of Accumulated Depreciation 50,749      
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 485      
Gross Amounts Carried at Close of Period, Land 2,439      
Gross Amounts Carried at Close of Period, Building and Improvements 8,972      
Gross Amounts Carried at Close of Period, Total 11,411      
Accumulated Depreciation (1,891)      
Total Costs, Net of Accumulated Depreciation 9,520      
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 647      
Gross Amounts Carried at Close of Period, Land 678      
Gross Amounts Carried at Close of Period, Building and Improvements 11,829      
Gross Amounts Carried at Close of Period, Total 12,507      
Accumulated Depreciation (6,584)      
Total Costs, Net of Accumulated Depreciation 5,923      
Encumbrances $ (9,201)      
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 2,251      
Gross Amounts Carried at Close of Period, Land 19,351      
Gross Amounts Carried at Close of Period, Building and Improvements 33,878      
Gross Amounts Carried at Close of Period, Total 53,229      
Accumulated Depreciation (7,056)      
Total Costs, Net of Accumulated Depreciation 46,173      
Encumbrances $ (15,190)      
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 631      
Gross Amounts Carried at Close of Period, Land 8,750      
Gross Amounts Carried at Close of Period, Building and Improvements 26,191      
Gross Amounts Carried at Close of Period, Total 34,941      
Accumulated Depreciation (4,803)      
Total Costs, Net of Accumulated Depreciation 30,138      
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 372      
Gross Amounts Carried at Close of Period, Land 8,431      
Gross Amounts Carried at Close of Period, Building and Improvements 21,842      
Gross Amounts Carried at Close of Period, Total 30,273      
Accumulated Depreciation (4,035)      
Total Costs, Net of Accumulated Depreciation 26,238      
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 (8,861)      
Total Costs, Net of Accumulated Depreciation 23,351      
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 7,231      
Gross Amounts Carried at Close of Period, Land 10,810      
Gross Amounts Carried at Close of Period, Building and Improvements 48,144      
Gross Amounts Carried at Close of Period, Total 58,954      
Accumulated Depreciation (17,665)      
Total Costs, Net of Accumulated Depreciation 41,289      
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 5,124      
Gross Amounts Carried at Close of Period, Land 1,006      
Gross Amounts Carried at Close of Period, Building and Improvements 5,308      
Gross Amounts Carried at Close of Period, Total 6,314      
Accumulated Depreciation (3,445)      
Total Costs, Net of Accumulated Depreciation 2,869      
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 1,508      
Gross Amounts Carried at Close of Period, Land 2,317      
Gross Amounts Carried at Close of Period, Building and Improvements 8,701      
Gross Amounts Carried at Close of Period, Total 11,018      
Accumulated Depreciation (5,407)      
Total Costs, Net of Accumulated Depreciation 5,611      
Encumbrances $ (8,308)      
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 1,690      
Gross Amounts Carried at Close of Period, Land 7,223      
Gross Amounts Carried at Close of Period, Building and Improvements 18,812      
Gross Amounts Carried at Close of Period, Total 26,035      
Accumulated Depreciation (6,879)      
Total Costs, Net of Accumulated Depreciation 19,156      
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 163      
Gross Amounts Carried at Close of Period, Land 3,777      
Gross Amounts Carried at Close of Period, Building and Improvements 21,440      
Gross Amounts Carried at Close of Period, Total 25,217      
Accumulated Depreciation (891)      
Total Costs, Net of Accumulated Depreciation 24,326      
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 1,391      
Gross Amounts Carried at Close of Period, Land 3,816      
Gross Amounts Carried at Close of Period, Building and Improvements 14,870      
Gross Amounts Carried at Close of Period, Total 18,686      
Accumulated Depreciation (4,709)      
Total Costs, Net of Accumulated Depreciation 13,977      
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 3,652      
Gross Amounts Carried at Close of Period, Land 1,415      
Gross Amounts Carried at Close of Period, Building and Improvements 9,257      
Gross Amounts Carried at Close of Period, Total 10,672      
Accumulated Depreciation (6,295)      
Total Costs, Net of Accumulated Depreciation 4,377      
Encumbrances $ 0      
Date of Acquisition/Construction Feb. 15, 1991      
Centers [Member] | Marketplace At Seminole Towne [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 16,067      
Initial Cost to Company, Building and Improvements 53,743      
Cost Capitalized Subsequent to Acquisition 10,687      
Gross Amounts Carried at Close of Period, Land 22,711      
Gross Amounts Carried at Close of Period, Building and Improvements 57,786      
Gross Amounts Carried at Close of Period, Total 80,497      
Accumulated Depreciation (17,080)      
Total Costs, Net of Accumulated Depreciation 63,417      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 21, 2006      
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 5,330      
Gross Amounts Carried at Close of Period, Land 2,696      
Gross Amounts Carried at Close of Period, Building and Improvements 16,105      
Gross Amounts Carried at Close of Period, Total 18,801      
Accumulated Depreciation (9,006)      
Total Costs, Net of Accumulated Depreciation 9,795      
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 1,106      
Gross Amounts Carried at Close of Period, Land 2,677      
Gross Amounts Carried at Close of Period, Building and Improvements 10,249      
Gross Amounts Carried at Close of Period, Total 12,926      
Accumulated Depreciation (3,343)      
Total Costs, Net of Accumulated Depreciation 9,583      
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 5,664      
Gross Amounts Carried at Close of Period, Land 1,824      
Gross Amounts Carried at Close of Period, Building and Improvements 12,974      
Gross Amounts Carried at Close of Period, Total 14,798      
Accumulated Depreciation (5,395)      
Total Costs, Net of Accumulated Depreciation 9,403      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 02, 2001      
Centers [Member] | Millpond Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 3,155      
Initial Cost to Company, Building and Improvements 9,706      
Cost Capitalized Subsequent to Acquisition 2,960      
Gross Amounts Carried at Close of Period, Land 3,161      
Gross Amounts Carried at Close of Period, Building and Improvements 12,660      
Gross Amounts Carried at Close of Period, Total 15,821      
Accumulated Depreciation (4,599)      
Total Costs, Net of Accumulated Depreciation 11,222      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 28, 2005      
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 5,904      
Gross Amounts Carried at Close of Period, Land 755      
Gross Amounts Carried at Close of Period, Building and Improvements 6,692      
Gross Amounts Carried at Close of Period, Total 7,447      
Accumulated Depreciation (4,291)      
Total Costs, Net of Accumulated Depreciation 3,156      
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 1,373      
Gross Amounts Carried at Close of Period, Land 10,382      
Gross Amounts Carried at Close of Period, Building and Improvements 57,676      
Gross Amounts Carried at Close of Period, Total 68,058      
Accumulated Depreciation (10,874)      
Total Costs, Net of Accumulated Depreciation 57,184      
Encumbrances $ (33,045)      
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 4,930      
Gross Amounts Carried at Close of Period, Land 6,954      
Gross Amounts Carried at Close of Period, Building and Improvements 30,516      
Gross Amounts Carried at Close of Period, Total 37,470      
Accumulated Depreciation (12,364)      
Total Costs, Net of Accumulated Depreciation 25,106      
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 8,820      
Gross Amounts Carried at Close of Period, Land 879      
Gross Amounts Carried at Close of Period, Building and Improvements 12,829      
Gross Amounts Carried at Close of Period, Total 13,708      
Accumulated Depreciation (8,764)      
Total Costs, Net of Accumulated Depreciation 4,944      
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 (5,580)      
Gross Amounts Carried at Close of Period, Land 259      
Gross Amounts Carried at Close of Period, Building and Improvements 906      
Gross Amounts Carried at Close of Period, Total 1,165      
Accumulated Depreciation (576)      
Total Costs, Net of Accumulated Depreciation 589      
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 3,764      
Gross Amounts Carried at Close of Period, Land 1,713      
Gross Amounts Carried at Close of Period, Building and Improvements 8,169      
Gross Amounts Carried at Close of Period, Total 9,882      
Accumulated Depreciation (6,811)      
Total Costs, Net of Accumulated Depreciation 3,071      
Encumbrances $ (9,032)      
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 703      
Gross Amounts Carried at Close of Period, Land 1,772      
Gross Amounts Carried at Close of Period, Building and Improvements 7,770      
Gross Amounts Carried at Close of Period, Total 9,542      
Accumulated Depreciation (3,193)      
Total Costs, Net of Accumulated Depreciation 6,349      
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 20,133      
Gross Amounts Carried at Close of Period, Land 19,664      
Gross Amounts Carried at Close of Period, Building and Improvements 22,390      
Gross Amounts Carried at Close of Period, Total 42,054      
Accumulated Depreciation (1,759)      
Total Costs, Net of Accumulated Depreciation 40,295      
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 6,798      
Gross Amounts Carried at Close of Period, Land 1,705      
Gross Amounts Carried at Close of Period, Building and Improvements 8,579      
Gross Amounts Carried at Close of Period, Total 10,284      
Accumulated Depreciation (6,302)      
Total Costs, Net of Accumulated Depreciation 3,982      
Encumbrances $ (7,509)      
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 1,122      
Gross Amounts Carried at Close of Period, Land 5,861      
Gross Amounts Carried at Close of Period, Building and Improvements 11,527      
Gross Amounts Carried at Close of Period, Total 17,388      
Accumulated Depreciation (3,532)      
Total Costs, Net of Accumulated Depreciation 13,856      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 15, 2007      
Centers [Member] | Oracle Crossings [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 4,614      
Initial Cost to Company, Building and Improvements 18,274      
Cost Capitalized Subsequent to Acquisition 29,817      
Gross Amounts Carried at Close of Period, Land 10,582      
Gross Amounts Carried at Close of Period, Building and Improvements 42,123      
Gross Amounts Carried at Close of Period, Total 52,705      
Accumulated Depreciation (12,479)      
Total Costs, Net of Accumulated Depreciation 40,226      
Encumbrances $ 0      
Date of Acquisition/Construction Jan. 22, 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 7,651      
Gross Amounts Carried at Close of Period, Land 13,813      
Gross Amounts Carried at Close of Period, Building and Improvements 45,402      
Gross Amounts Carried at Close of Period, Total 59,215      
Accumulated Depreciation (13,613)      
Total Costs, Net of Accumulated Depreciation 45,602      
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 14,080      
Gross Amounts Carried at Close of Period, Land 9,264      
Gross Amounts Carried at Close of Period, Building and Improvements 51,871      
Gross Amounts Carried at Close of Period, Total 61,135      
Accumulated Depreciation (20,488)      
Total Costs, Net of Accumulated Depreciation 40,647      
Encumbrances $ 0      
Date of Acquisition/Construction Oct. 24, 2003      
Centers [Member] | Palmilla Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,258      
Initial Cost to Company, Building and Improvements 0      
Cost Capitalized Subsequent to Acquisition 13,235      
Gross Amounts Carried at Close of Period, Land 2,882      
Gross Amounts Carried at Close of Period, Building and Improvements 11,611      
Gross Amounts Carried at Close of Period, Total 14,493      
Accumulated Depreciation (7,166)      
Total Costs, Net of Accumulated Depreciation 7,327      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 2002      
Centers [Member] | Paradise Marketplace [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 2,153      
Initial Cost to Company, Building and Improvements 8,612      
Cost Capitalized Subsequent to Acquisition (1,805)      
Gross Amounts Carried at Close of Period, Land 1,197      
Gross Amounts Carried at Close of Period, Building and Improvements 7,763      
Gross Amounts Carried at Close of Period, Total 8,960      
Accumulated Depreciation (4,561)      
Total Costs, Net of Accumulated Depreciation 4,399      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 20, 1995      
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 (960)      
Total Costs, Net of Accumulated Depreciation 235      
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 4,483      
Gross Amounts Carried at Close of Period, Land 34,404      
Gross Amounts Carried at Close of Period, Building and Improvements 42,117      
Gross Amounts Carried at Close of Period, Total 76,521      
Accumulated Depreciation (13,941)      
Total Costs, Net of Accumulated Depreciation 62,580      
Encumbrances $ (31,316)      
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 28,454      
Gross Amounts Carried at Close of Period, Land 872      
Gross Amounts Carried at Close of Period, Building and Improvements 27,583      
Gross Amounts Carried at Close of Period, Total 28,455      
Accumulated Depreciation (13,948)      
Total Costs, Net of Accumulated Depreciation 14,507      
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 1,415      
Gross Amounts Carried at Close of Period, Land 1,773      
Gross Amounts Carried at Close of Period, Building and Improvements 4,593      
Gross Amounts Carried at Close of Period, Total 6,366      
Accumulated Depreciation (1,920)      
Total Costs, Net of Accumulated Depreciation 4,446      
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 3,174      
Gross Amounts Carried at Close of Period, Land 0      
Gross Amounts Carried at Close of Period, Building and Improvements 43,711      
Gross Amounts Carried at Close of Period, Total 43,711      
Accumulated Depreciation (10,299)      
Total Costs, Net of Accumulated Depreciation 33,412      
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 1,965      
Gross Amounts Carried at Close of Period, Land 3,471      
Gross Amounts Carried at Close of Period, Building and Improvements 16,778      
Gross Amounts Carried at Close of Period, Total 20,249      
Accumulated Depreciation (6,208)      
Total Costs, Net of Accumulated Depreciation 14,041      
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 (8,537)      
Total Costs, Net of Accumulated Depreciation 15,936      
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 5,308      
Gross Amounts Carried at Close of Period, Land 2,768      
Gross Amounts Carried at Close of Period, Building and Improvements 16,290      
Gross Amounts Carried at Close of Period, Total 19,058      
Accumulated Depreciation (10,150)      
Total Costs, Net of Accumulated Depreciation 8,908      
Encumbrances $ (14,360)      
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 17,888      
Gross Amounts Carried at Close of Period, Land 10,983      
Gross Amounts Carried at Close of Period, Building and Improvements 18,942      
Gross Amounts Carried at Close of Period, Total 29,925      
Accumulated Depreciation (12,030)      
Total Costs, Net of Accumulated Depreciation 17,895      
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 5,454      
Gross Amounts Carried at Close of Period, Land 3,887      
Gross Amounts Carried at Close of Period, Building and Improvements 19,238      
Gross Amounts Carried at Close of Period, Total 23,125      
Accumulated Depreciation (7,871)      
Total Costs, Net of Accumulated Depreciation 15,254      
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 785      
Gross Amounts Carried at Close of Period, Land 1,166      
Gross Amounts Carried at Close of Period, Building and Improvements 5,427      
Gross Amounts Carried at Close of Period, Total 6,593      
Accumulated Depreciation (3,151)      
Total Costs, Net of Accumulated Depreciation 3,442      
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 423      
Gross Amounts Carried at Close of Period, Land 3,585      
Gross Amounts Carried at Close of Period, Building and Improvements 8,555      
Gross Amounts Carried at Close of Period, Total 12,140      
Accumulated Depreciation (5,565)      
Total Costs, Net of Accumulated Depreciation 6,575      
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 11,782      
Gross Amounts Carried at Close of Period, Land 3,317      
Gross Amounts Carried at Close of Period, Building and Improvements 10,720      
Gross Amounts Carried at Close of Period, Total 14,037      
Accumulated Depreciation (5,152)      
Total Costs, Net of Accumulated Depreciation 8,885      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 2003      
Centers [Member] | Regency Centre [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 5,616      
Initial Cost to Company, Building and Improvements 18,516      
Cost Capitalized Subsequent to Acquisition 3,512      
Gross Amounts Carried at Close of Period, Land 3,581      
Gross Amounts Carried at Close of Period, Building and Improvements 24,063      
Gross Amounts Carried at Close of Period, Total 27,644      
Accumulated Depreciation (7,529)      
Total Costs, Net of Accumulated Depreciation 20,115      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 28, 2006      
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 292      
Gross Amounts Carried at Close of Period, Land 4,276      
Gross Amounts Carried at Close of Period, Building and Improvements 9,478      
Gross Amounts Carried at Close of Period, Total 13,754      
Accumulated Depreciation (2,772)      
Total Costs, Net of Accumulated Depreciation 10,982      
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 13,472      
Gross Amounts Carried at Close of Period, Land 14,512      
Gross Amounts Carried at Close of Period, Building and Improvements 1,906      
Gross Amounts Carried at Close of Period, Total 16,418      
Accumulated Depreciation (1,294)      
Total Costs, Net of Accumulated Depreciation 15,124      
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 23,645      
Gross Amounts Carried at Close of Period, Land 16,100      
Gross Amounts Carried at Close of Period, Building and Improvements 34,718      
Gross Amounts Carried at Close of Period, Total 50,818      
Accumulated Depreciation (13,891)      
Total Costs, Net of Accumulated Depreciation 36,927      
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 338      
Gross Amounts Carried at Close of Period, Land 1,363      
Gross Amounts Carried at Close of Period, Building and Improvements 2,275      
Gross Amounts Carried at Close of Period, Total 3,638      
Accumulated Depreciation (1,992)      
Total Costs, Net of Accumulated Depreciation 1,646      
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 35,470      
Gross Amounts Carried at Close of Period, Land 4,207      
Gross Amounts Carried at Close of Period, Building and Improvements 52,538      
Gross Amounts Carried at Close of Period, Total 56,745      
Accumulated Depreciation (27,137)      
Total Costs, Net of Accumulated Depreciation 29,608      
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 16,381      
Gross Amounts Carried at Close of Period, Land 10,659      
Gross Amounts Carried at Close of Period, Building and Improvements 38,662      
Gross Amounts Carried at Close of Period, Total 49,321      
Accumulated Depreciation (10,918)      
Total Costs, Net of Accumulated Depreciation 38,403      
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 3,439      
Gross Amounts Carried at Close of Period, Land 5,835      
Gross Amounts Carried at Close of Period, Building and Improvements 25,187      
Gross Amounts Carried at Close of Period, Total 31,022      
Accumulated Depreciation (8,583)      
Total Costs, Net of Accumulated Depreciation 22,439      
Encumbrances $ (3,749)      
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 1,229      
Gross Amounts Carried at Close of Period, Land 7,625      
Gross Amounts Carried at Close of Period, Building and Improvements 19,802      
Gross Amounts Carried at Close of Period, Total 27,427      
Accumulated Depreciation (4,904)      
Total Costs, Net of Accumulated Depreciation 22,523      
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 910      
Gross Amounts Carried at Close of Period, Land 1,358      
Gross Amounts Carried at Close of Period, Building and Improvements 6,351      
Gross Amounts Carried at Close of Period, Total 7,709      
Accumulated Depreciation (2,671)      
Total Costs, Net of Accumulated Depreciation 5,038      
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 39,224      
Gross Amounts Carried at Close of Period, Land 12,914      
Gross Amounts Carried at Close of Period, Building and Improvements 29,551      
Gross Amounts Carried at Close of Period, Total 42,465      
Accumulated Depreciation (4,587)      
Total Costs, Net of Accumulated Depreciation 37,878      
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 320      
Gross Amounts Carried at Close of Period, Land 32,891      
Gross Amounts Carried at Close of Period, Building and Improvements 18,084      
Gross Amounts Carried at Close of Period, Total 50,975      
Accumulated Depreciation (1,142)      
Total Costs, Net of Accumulated Depreciation 49,833      
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 1,702      
Gross Amounts Carried at Close of Period, Land 11,977      
Gross Amounts Carried at Close of Period, Building and Improvements 5,921      
Gross Amounts Carried at Close of Period, Total 17,898      
Accumulated Depreciation (1,394)      
Total Costs, Net of Accumulated Depreciation 16,504      
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 1,615      
Gross Amounts Carried at Close of Period, Land 3,290      
Gross Amounts Carried at Close of Period, Building and Improvements 7,080      
Gross Amounts Carried at Close of Period, Total 10,370      
Accumulated Depreciation (2,524)      
Total Costs, Net of Accumulated Depreciation 7,846      
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 9,501      
Gross Amounts Carried at Close of Period, Land 3,332      
Gross Amounts Carried at Close of Period, Building and Improvements 12,372      
Gross Amounts Carried at Close of Period, Total 15,704      
Accumulated Depreciation (8,756)      
Total Costs, Net of Accumulated Depreciation 6,948      
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 (1,406)      
Gross Amounts Carried at Close of Period, Land 5,672      
Gross Amounts Carried at Close of Period, Building and Improvements 8,046      
Gross Amounts Carried at Close of Period, Total 13,718      
Accumulated Depreciation (2,470)      
Total Costs, Net of Accumulated Depreciation 11,248      
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 276      
Gross Amounts Carried at Close of Period, Land 1,202      
Gross Amounts Carried at Close of Period, Building and Improvements 1,220      
Gross Amounts Carried at Close of Period, Total 2,422      
Accumulated Depreciation (507)      
Total Costs, Net of Accumulated Depreciation 1,915      
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 11,286      
Gross Amounts Carried at Close of Period, Land 10,587      
Gross Amounts Carried at Close of Period, Building and Improvements 16,217      
Gross Amounts Carried at Close of Period, Total 26,804      
Accumulated Depreciation (10,806)      
Total Costs, Net of Accumulated Depreciation 15,998      
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 4,532      
Gross Amounts Carried at Close of Period, Land 3,228      
Gross Amounts Carried at Close of Period, Building and Improvements 17,459      
Gross Amounts Carried at Close of Period, Total 20,687      
Accumulated Depreciation (7,485)      
Total Costs, Net of Accumulated Depreciation 13,202      
Encumbrances $ (14,312)      
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 6,471      
Gross Amounts Carried at Close of Period, Land 6,728      
Gross Amounts Carried at Close of Period, Building and Improvements 33,180      
Gross Amounts Carried at Close of Period, Total 39,908      
Accumulated Depreciation (14,383)      
Total Costs, Net of Accumulated Depreciation 25,525      
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 3,162      
Gross Amounts Carried at Close of Period, Land 4,333      
Gross Amounts Carried at Close of Period, Building and Improvements 20,515      
Gross Amounts Carried at Close of Period, Total 24,848      
Accumulated Depreciation (9,436)      
Total Costs, Net of Accumulated Depreciation 15,412      
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 726      
Gross Amounts Carried at Close of Period, Land 231      
Gross Amounts Carried at Close of Period, Building and Improvements 9,116      
Gross Amounts Carried at Close of Period, Total 9,347      
Accumulated Depreciation (5,801)      
Total Costs, Net of Accumulated Depreciation 3,546      
Encumbrances $ (5,438)      
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 3,472      
Gross Amounts Carried at Close of Period, Land 818      
Gross Amounts Carried at Close of Period, Building and Improvements 6,736      
Gross Amounts Carried at Close of Period, Total 7,554      
Accumulated Depreciation (3,841)      
Total Costs, Net of Accumulated Depreciation 3,713      
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 122      
Gross Amounts Carried at Close of Period, Land 2,897      
Gross Amounts Carried at Close of Period, Building and Improvements 1,896      
Gross Amounts Carried at Close of Period, Total 4,793      
Accumulated Depreciation (1,641)      
Total Costs, Net of Accumulated Depreciation 3,152      
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 2,415      
Gross Amounts Carried at Close of Period, Land 4,740      
Gross Amounts Carried at Close of Period, Building and Improvements 21,416      
Gross Amounts Carried at Close of Period, Total 26,156      
Accumulated Depreciation (9,402)      
Total Costs, Net of Accumulated Depreciation 16,754      
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 11,400      
Gross Amounts Carried at Close of Period, Land 3,453      
Gross Amounts Carried at Close of Period, Building and Improvements 25,393      
Gross Amounts Carried at Close of Period, Total 28,846      
Accumulated Depreciation (11,232)      
Total Costs, Net of Accumulated Depreciation 17,614      
Encumbrances $ (10,832)      
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 13,959      
Gross Amounts Carried at Close of Period, Land 5,926      
Gross Amounts Carried at Close of Period, Building and Improvements 35,628      
Gross Amounts Carried at Close of Period, Total 41,554      
Accumulated Depreciation (10,219)      
Total Costs, Net of Accumulated Depreciation 31,335      
Encumbrances $ 0      
Date of Acquisition/Construction Oct. 29, 2001      
Centers [Member] | Surf City Crossing [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 3,220      
Initial Cost to Company, Building and Improvements 52      
Cost Capitalized Subsequent to Acquisition 5,100      
Gross Amounts Carried at Close of Period, Land 2,655      
Gross Amounts Carried at Close of Period, Building and Improvements 5,717      
Gross Amounts Carried at Close of Period, Total 8,372      
Accumulated Depreciation (2,764)      
Total Costs, Net of Accumulated Depreciation 5,608      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 06, 2006      
Centers [Member] | Tates Creek Centre [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 4,802      
Initial Cost to Company, Building and Improvements 25,366      
Cost Capitalized Subsequent to Acquisition 1,869      
Gross Amounts Carried at Close of Period, Land 5,766      
Gross Amounts Carried at Close of Period, Building and Improvements 26,271      
Gross Amounts Carried at Close of Period, Total 32,037      
Accumulated Depreciation (9,607)      
Total Costs, Net of Accumulated Depreciation 22,430      
Encumbrances $ 0      
Date of Acquisition/Construction Mar. 01, 2004      
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 24,782      
Gross Amounts Carried at Close of Period, Land 17,822      
Gross Amounts Carried at Close of Period, Building and Improvements 20,806      
Gross Amounts Carried at Close of Period, Total 38,628      
Accumulated Depreciation (13,460)      
Total Costs, Net of Accumulated Depreciation 25,168      
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 3,500      
Gross Amounts Carried at Close of Period, Land 4,988      
Gross Amounts Carried at Close of Period, Building and Improvements 22,406      
Gross Amounts Carried at Close of Period, Total 27,394      
Accumulated Depreciation (8,674)      
Total Costs, Net of Accumulated Depreciation 18,720      
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 429      
Gross Amounts Carried at Close of Period, Land 102,512      
Gross Amounts Carried at Close of Period, Building and Improvements 149,953      
Gross Amounts Carried at Close of Period, Total 252,465      
Accumulated Depreciation (8,324)      
Total Costs, Net of Accumulated Depreciation 244,141      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 27, 2016      
Centers [Member] | The Shoppes At Parkwood Ranch [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 4,369      
Initial Cost to Company, Building and Improvements 52      
Cost Capitalized Subsequent to Acquisition 10,339      
Gross Amounts Carried at Close of Period, Land 2,420      
Gross Amounts Carried at Close of Period, Building and Improvements 12,340      
Gross Amounts Carried at Close of Period, Total 14,760      
Accumulated Depreciation (7,303)      
Total Costs, Net of Accumulated Depreciation 7,457      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 31, 2009      
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 105      
Gross Amounts Carried at Close of Period, Land 14,952      
Gross Amounts Carried at Close of Period, Building and Improvements 10,455      
Gross Amounts Carried at Close of Period, Total 25,407      
Accumulated Depreciation (665)      
Total Costs, Net of Accumulated Depreciation 24,742      
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 (130)      
Total Costs, Net of Accumulated Depreciation 1,099      
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 1,030      
Gross Amounts Carried at Close of Period, Land 2,973      
Gross Amounts Carried at Close of Period, Building and Improvements 14,172      
Gross Amounts Carried at Close of Period, Total 17,145      
Accumulated Depreciation (5,457)      
Total Costs, Net of Accumulated Depreciation 11,688      
Encumbrances $ (9,560)      
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 3,900      
Gross Amounts Carried at Close of Period, Land 3,430      
Gross Amounts Carried at Close of Period, Building and Improvements 23,153      
Gross Amounts Carried at Close of Period, Total 26,583      
Accumulated Depreciation (8,240)      
Total Costs, Net of Accumulated Depreciation 18,343      
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 24,702      
Gross Amounts Carried at Close of Period, Land 6,726      
Gross Amounts Carried at Close of Period, Building and Improvements 27,854      
Gross Amounts Carried at Close of Period, Total 34,580      
Accumulated Depreciation (11,666)      
Total Costs, Net of Accumulated Depreciation 22,914      
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 827      
Gross Amounts Carried at Close of Period, Land 9,855      
Gross Amounts Carried at Close of Period, Building and Improvements 29,960      
Gross Amounts Carried at Close of Period, Total 39,815      
Accumulated Depreciation (2,134)      
Total Costs, Net of Accumulated Depreciation 37,681      
Encumbrances $ 0      
Date of Acquisition/Construction Aug. 31, 2015      
Centers [Member] | Tropicana Beltway Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 13,947      
Initial Cost to Company, Building and Improvements 42,186      
Cost Capitalized Subsequent to Acquisition 2,094      
Gross Amounts Carried at Close of Period, Land 13,949      
Gross Amounts Carried at Close of Period, Building and Improvements 44,278      
Gross Amounts Carried at Close of Period, Total 58,227      
Accumulated Depreciation (15,750)      
Total Costs, Net of Accumulated Depreciation 42,477      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 20, 2007      
Centers [Member] | Tropicana Marketplace [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 2,118      
Initial Cost to Company, Building and Improvements 8,477      
Cost Capitalized Subsequent to Acquisition (1,263)      
Gross Amounts Carried at Close of Period, Land 1,206      
Gross Amounts Carried at Close of Period, Building and Improvements 8,126      
Gross Amounts Carried at Close of Period, Total 9,332      
Accumulated Depreciation (4,252)      
Total Costs, Net of Accumulated Depreciation 5,080      
Encumbrances $ 0      
Date of Acquisition/Construction Jul. 24, 1995      
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 1,635      
Gross Amounts Carried at Close of Period, Land 8,910      
Gross Amounts Carried at Close of Period, Building and Improvements 10,754      
Gross Amounts Carried at Close of Period, Total 19,664      
Accumulated Depreciation (3,467)      
Total Costs, Net of Accumulated Depreciation 16,197      
Encumbrances $ 0      
Date of Acquisition/Construction Apr. 07, 2006      
Centers [Member] | Valley View Shopping Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 1,006      
Initial Cost to Company, Building and Improvements 3,980      
Cost Capitalized Subsequent to Acquisition 2,248      
Gross Amounts Carried at Close of Period, Land 1,006      
Gross Amounts Carried at Close of Period, Building and Improvements 6,228      
Gross Amounts Carried at Close of Period, Total 7,234      
Accumulated Depreciation (3,697)      
Total Costs, Net of Accumulated Depreciation 3,537      
Encumbrances $ 0      
Date of Acquisition/Construction Nov. 20, 1996      
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 2,358      
Gross Amounts Carried at Close of Period, Land 3,044      
Gross Amounts Carried at Close of Period, Building and Improvements 14,584      
Gross Amounts Carried at Close of Period, Total 17,628      
Accumulated Depreciation (5,555)      
Total Costs, Net of Accumulated Depreciation 12,073      
Encumbrances $ 0      
Date of Acquisition/Construction Dec. 18, 2002      
Centers [Member] | Wake Forest Crossing II [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost to Company, Land $ 395      
Initial Cost to Company, Building and Improvements 940      
Cost Capitalized Subsequent to Acquisition 2,503      
Gross Amounts Carried at Close of Period, Land 415      
Gross Amounts Carried at Close of Period, Building and Improvements 3,423      
Gross Amounts Carried at Close of Period, Total 3,838      
Accumulated Depreciation (48)      
Total Costs, Net of Accumulated Depreciation 3,790      
Encumbrances $ 0      
Date of Acquisition/Construction Jun. 04, 2014      
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 12,264      
Gross Amounts Carried at Close of Period, Land 3,775      
Gross Amounts Carried at Close of Period, Building and Improvements 14,319      
Gross Amounts Carried at Close of Period, Total 18,094      
Accumulated Depreciation (6,656)      
Total Costs, Net of Accumulated Depreciation 11,438      
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 2,460      
Gross Amounts Carried at Close of Period, Land 16,500      
Gross Amounts Carried at Close of Period, Building and Improvements 34,949      
Gross Amounts Carried at Close of Period, Total 51,449      
Accumulated Depreciation (2,609)      
Total Costs, Net of Accumulated Depreciation 48,840      
Encumbrances $ (18,587)      
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 (1,989)      
Gross Amounts Carried at Close of Period, Land 3,269      
Gross Amounts Carried at Close of Period, Building and Improvements 16,824      
Gross Amounts Carried at Close of Period, Total 20,093      
Accumulated Depreciation (7,284)      
Total Costs, Net of Accumulated Depreciation 12,809      
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 13,586      
Gross Amounts Carried at Close of Period, Land 3,189      
Gross Amounts Carried at Close of Period, Building and Improvements 21,402      
Gross Amounts Carried at Close of Period, Total 24,591      
Accumulated Depreciation (13,221)      
Total Costs, Net of Accumulated Depreciation 11,370      
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 6,720      
Gross Amounts Carried at Close of Period, Land 437      
Gross Amounts Carried at Close of Period, Building and Improvements 9,693      
Gross Amounts Carried at Close of Period, Total 10,130      
Accumulated Depreciation (5,621)      
Total Costs, Net of Accumulated Depreciation 4,509      
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 (7,267)      
Gross Amounts Carried at Close of Period, Land 12,220      
Gross Amounts Carried at Close of Period, Building and Improvements 18,581      
Gross Amounts Carried at Close of Period, Total 30,801      
Accumulated Depreciation (10,027)      
Total Costs, Net of Accumulated Depreciation 20,774      
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 8,832      
Gross Amounts Carried at Close of Period, Land 11,204      
Gross Amounts Carried at Close of Period, Building and Improvements 53,714      
Gross Amounts Carried at Close of Period, Total 64,918      
Accumulated Depreciation (24,301)      
Total Costs, Net of Accumulated Depreciation 40,617      
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 2,057      
Gross Amounts Carried at Close of Period, Land 2,189      
Gross Amounts Carried at Close of Period, Building and Improvements 10,663      
Gross Amounts Carried at Close of Period, Total 12,852      
Accumulated Depreciation (4,552)      
Total Costs, Net of Accumulated Depreciation 8,300      
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 32,699      
Gross Amounts Carried at Close of Period, Land 49,786      
Gross Amounts Carried at Close of Period, Building and Improvements 52,377      
Gross Amounts Carried at Close of Period, Total 102,163      
Accumulated Depreciation (116)      
Total Costs, Net of Accumulated Depreciation 102,047      
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 31,181      
Gross Amounts Carried at Close of Period, Land 44,420      
Gross Amounts Carried at Close of Period, Building and Improvements 31,593      
Gross Amounts Carried at Close of Period, Total 76,013      
Accumulated Depreciation 0      
Total Costs, Net of Accumulated Depreciation 76,013      
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 1,518      
Gross Amounts Carried at Close of Period, Land 5,366      
Gross Amounts Carried at Close of Period, Building and Improvements 20,784      
Gross Amounts Carried at Close of Period, Total 26,150      
Accumulated Depreciation (116)      
Total Costs, Net of Accumulated Depreciation 26,034      
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 $ 50,900      
Non-cash debt 4,000      
Deferred finance costs $ (1,300)