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Schedule III: Real Estate and Accumulated Depreciation (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances $ 498,861      
Land 809,774      
Buildings and Improvements 1,569,543      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,009,294      
Land 795,311      
Buildings and Improvements 2,593,300      
Total 3,388,611      
Accumulated Depreciation 12/31/2016 $ 797,919 $ 792,501 $ 786,978 $ 748,044
1650 Highway 155 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) McDonough, GA      
Land $ 779      
Buildings and Improvements 4,544      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (897)      
Land 356      
Buildings and Improvements 4,070      
Total 4,426      
Accumulated Depreciation 12/31/2016 $ 2,362      
1665 Dogwood [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Conyers, GA      
Land $ 635      
Buildings and Improvements 3,662      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 676      
Land 635      
Buildings and Improvements 4,338      
Total 4,973      
Accumulated Depreciation 12/31/2016 $ 2,255      
1715 Dogwood [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Conyers, GA      
Land $ 288      
Buildings and Improvements 1,675      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 833      
Land 228      
Buildings and Improvements 2,568      
Total 2,796      
Accumulated Depreciation 12/31/2016 $ 1,154      
11235 Harland Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Covington, GA      
Land $ 125      
Buildings and Improvements 739      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 218      
Land 125      
Buildings and Improvements 957      
Total 1,082      
Accumulated Depreciation 12/31/2016 $ 510      
4051 Southmeadow Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Atlanta, GA      
Land $ 726      
Buildings and Improvements 4,130      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,590      
Land 726      
Buildings and Improvements 5,720      
Total 6,446      
Accumulated Depreciation 12/31/2016 $ 2,691      
4071 Southmeadow Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Atlanta, GA      
Land $ 750      
Buildings and Improvements 4,460      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,766      
Land 828      
Buildings and Improvements 6,148      
Total 6,976      
Accumulated Depreciation 12/31/2016 $ 3,132      
4081 Southmeadow Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Atlanta, GA      
Land $ 1,012      
Buildings and Improvements 5,918      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,059      
Land 1,157      
Buildings and Improvements 7,832      
Total 8,989      
Accumulated Depreciation 12/31/2016 $ 3,836      
5570 Tulane Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Atlanta, GA      
Encumbrances $ 2,235      
Land 527      
Buildings and Improvements 2,984      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,340      
Land 546      
Buildings and Improvements 4,305      
Total 4,851      
Accumulated Depreciation 12/31/2016 $ 1,996      
955 Cobb Place [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kennesaw, GA      
Encumbrances $ 2,822      
Land 780      
Buildings and Improvements 4,420      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 924      
Land 804      
Buildings and Improvements 5,320      
Total 6,124      
Accumulated Depreciation 12/31/2016 $ 2,439      
1005 Sigman Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Conyers, GA      
Encumbrances $ 1,896      
Land 566      
Buildings and Improvements 3,134      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 413      
Land 574      
Buildings and Improvements 3,539      
Total 4,113      
Accumulated Depreciation 12/31/2016 $ 1,476      
2050 East Park Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Conyers, GA      
Land $ 452      
Buildings and Improvements 2,504      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 861      
Land 459      
Buildings and Improvements 3,358      
Total 3,817      
Accumulated Depreciation 12/31/2016 $ 1,217      
3060 South Park Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ellenwood, GA      
Land $ 1,600      
Buildings and Improvements 12,464      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,037      
Land 1,604      
Buildings and Improvements 15,497      
Total 17,101      
Accumulated Depreciation 12/31/2016 $ 4,966      
175 Greenwood Industrial Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) McDonough, GA      
Encumbrances $ 4,231      
Land 1,550      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7,632      
Land 1,550      
Buildings and Improvements 7,632      
Total 9,182      
Accumulated Depreciation 12/31/2016 $ 2,383      
46 Kent Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Cartersville GA      
Land $ 794      
Buildings and Improvements 2,252      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 125      
Land 798      
Buildings and Improvements 2,373      
Total 3,171      
Accumulated Depreciation 12/31/2016 $ 942      
5095 Phillip Lee Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Atlanta, GA      
Encumbrances $ 3,729      
Land 735      
Buildings and Improvements 3,627      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 493      
Land 740      
Buildings and Improvements 4,115      
Total 4,855      
Accumulated Depreciation 12/31/2016 $ 2,907      
6514 Warren Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Norcross, GA      
Land $ 510      
Buildings and Improvements 1,250      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 118      
Land 513      
Buildings and Improvements 1,365      
Total 1,878      
Accumulated Depreciation 12/31/2016 $ 502      
6544 Warren Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Norcross, GA      
Land $ 711      
Buildings and Improvements 2,310      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 329      
Land 715      
Buildings and Improvements 2,635      
Total 3,350      
Accumulated Depreciation 12/31/2016 $ 1,059      
5356 E. Ponce De Leon [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Stone Mountain, GA      
Land $ 604      
Buildings and Improvements 3,888      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 135      
Land 610      
Buildings and Improvements 4,017      
Total 4,627      
Accumulated Depreciation 12/31/2016 $ 2,307      
5390 E. Ponce De Leon [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Stone Mountain, GA      
Land $ 397      
Buildings and Improvements 1,791      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 147      
Land 402      
Buildings and Improvements 1,933      
Total 2,335      
Accumulated Depreciation 12/31/2016 $ 866      
195 & 197 Collins Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Athens, GA      
Land $ 1,410      
Buildings and Improvements 5,344      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 539      
Land 989      
Buildings and Improvements 6,304      
Total 7,293      
Accumulated Depreciation 12/31/2016 $ 3,945      
1755 Enterprise Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Buford, GA      
Encumbrances $ 1,210      
Land 712      
Buildings and Improvements 2,118      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (204)      
Land 716      
Buildings and Improvements 1,910      
Total 2,626      
Accumulated Depreciation 12/31/2016 $ 743      
4555 Atwater Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Buford, GA      
Encumbrances $ 2,098      
Land 881      
Buildings and Improvements 3,550      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 121      
Land 885      
Buildings and Improvements 3,667      
Total 4,552      
Accumulated Depreciation 12/31/2016 $ 1,269      
80 Liberty Industrial Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) McDonough, GA      
Land $ 756      
Buildings and Improvements 3,695      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (1,336)      
Land 467      
Buildings and Improvements 2,648      
Total 3,115      
Accumulated Depreciation 12/31/2016 $ 1,059      
596 Bonnie Valentine [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pendergrass, GA      
Land $ 2,580      
Buildings and Improvements 21,730      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,370      
Land 2,594      
Buildings and Improvements 24,086      
Total 26,680      
Accumulated Depreciation 12/31/2016 $ 6,250      
11415 Old Roswell Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Alpharetta, GA      
Encumbrances $ 3,308      
Land 2,403      
Buildings and Improvements 1,912      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,019      
Land 2,428      
Buildings and Improvements 2,906      
Total 5,334      
Accumulated Depreciation 12/31/2016 $ 892      
1281 Highway 155 S. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) McDonough, GA      
Land $ 2,501      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 16,422      
Land 2,501      
Buildings and Improvements 16,422      
Total 18,923      
Accumulated Depreciation 12/31/2016 $ 0      
9700 Martin Luther King Hwy [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 700      
Buildings and Improvements 1,920      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 563      
Land 700      
Buildings and Improvements 2,483      
Total 3,183      
Accumulated Depreciation 12/31/2016 $ 976      
9730 Martin Luther King Hwy [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 500      
Buildings and Improvements 955      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 494      
Land 500      
Buildings and Improvements 1,449      
Total 1,949      
Accumulated Depreciation 12/31/2016 $ 619      
4621 Boston Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 1,100      
Buildings and Improvements 3,070      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 860      
Land 1,100      
Buildings and Improvements 3,930      
Total 5,030      
Accumulated Depreciation 12/31/2016 $ 1,652      
4720 Boston Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 1,200      
Buildings and Improvements 2,174      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 830      
Land 1,200      
Buildings and Improvements 3,004      
Total 4,204      
Accumulated Depreciation 12/31/2016 $ 1,308      
22520 Randolph Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dulles, VA      
Land $ 3,200      
Buildings and Improvements 8,187      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (172)      
Land 3,208      
Buildings and Improvements 8,007      
Total 11,215      
Accumulated Depreciation 12/31/2016 $ 2,035      
22630 Dulles Summit Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dulles, VA      
Land $ 2,200      
Buildings and Improvements 9,346      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (903)      
Land 2,206      
Buildings and Improvements 8,437      
Total 10,643      
Accumulated Depreciation 12/31/2016 $ 2,339      
4370-4383 Lottsford Vista Rd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 279      
Buildings and Improvements 1,358      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 89      
Land 296      
Buildings and Improvements 1,430      
Total 1,726      
Accumulated Depreciation 12/31/2016 $ 443      
4400 Lottsford Vista Rd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 351      
Buildings and Improvements 1,955      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 241      
Land 372      
Buildings and Improvements 2,175      
Total 2,547      
Accumulated Depreciation 12/31/2016 $ 788      
4420 Lottsford Vista Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lanham, MD      
Land $ 539      
Buildings and Improvements 2,196      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 271      
Land 568      
Buildings and Improvements 2,438      
Total 3,006      
Accumulated Depreciation 12/31/2016 $ 735      
11204 McCormick Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hunt Valley, MD      
Land $ 1,017      
Buildings and Improvements 3,132      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 170      
Land 1,038      
Buildings and Improvements 3,281      
Total 4,319      
Accumulated Depreciation 12/31/2016 $ 1,483      
11110 Pepper Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hunt Valley, MD      
Land $ 918      
Buildings and Improvements 2,529      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 316      
Land 938      
Buildings and Improvements 2,825      
Total 3,763      
Accumulated Depreciation 12/31/2016 $ 1,250      
11100-11120 Gilroy Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hunt Valley, MD      
Land $ 901      
Buildings and Improvements 1,455      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 51      
Land 919      
Buildings and Improvements 1,488      
Total 2,407      
Accumulated Depreciation 12/31/2016 $ 629      
10709 Gilroy Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hunt Valley, MD      
Encumbrances $ 1,975      
Land 913      
Buildings and Improvements 2,705      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (103)      
Land 913      
Buildings and Improvements 2,602      
Total 3,515      
Accumulated Depreciation 12/31/2016 $ 1,452      
10707 Gilroy Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hunt Valley, MD      
Land $ 1,111      
Buildings and Improvements 3,819      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 564      
Land 1,136      
Buildings and Improvements 4,358      
Total 5,494      
Accumulated Depreciation 12/31/2016 $ 1,941      
38 Loveton Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Sparks, MD      
Land $ 1,648      
Buildings and Improvements 2,151      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (192)      
Land 1,690      
Buildings and Improvements 1,917      
Total 3,607      
Accumulated Depreciation 12/31/2016 $ 884      
1225 Bengies Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Baltimore, MD      
Land $ 2,640      
Buildings and Improvements 270      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 14,057      
Land 2,823      
Buildings and Improvements 14,144      
Total 16,967      
Accumulated Depreciation 12/31/2016 $ 4,381      
400 Old Post Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aberdeen, MD      
Land $ 3,411      
Buildings and Improvements 17,144      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 162      
Land 3,411      
Buildings and Improvements 17,306      
Total 20,717      
Accumulated Depreciation 12/31/2016 $ 865      
500 Old Post Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aberdeen, MD      
Land $ 5,959      
Buildings and Improvements 30,533      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 146      
Land 5,959      
Buildings and Improvements 30,679      
Total 36,638      
Accumulated Depreciation 12/31/2016 $ 1,500      
1214-B Freedom Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Cranberry Township, PA      
Encumbrances $ 1,036      
Land 31      
Buildings and Improvements 994      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 613      
Land 200      
Buildings and Improvements 1,438      
Total 1,638      
Accumulated Depreciation 12/31/2016 $ 1,288      
401 Russell Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Middletown, PA      
Land $ 262      
Buildings and Improvements 857      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,705      
Land 287      
Buildings and Improvements 2,537      
Total 2,824      
Accumulated Depreciation 12/31/2016 $ 2,080      
2700 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Middletown, PA      
Land $ 196      
Buildings and Improvements 997      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 935      
Land 206      
Buildings and Improvements 1,922      
Total 2,128      
Accumulated Depreciation 12/31/2016 $ 1,592      
2701 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Middletown, PA      
Encumbrances $ 1,518      
Land 141      
Buildings and Improvements 859      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,399      
Land 164      
Buildings and Improvements 2,235      
Total 2,399      
Accumulated Depreciation 12/31/2016 $ 1,545      
2780 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Middletown, PA      
Encumbrances $ 1,269      
Land 113      
Buildings and Improvements 743      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,150      
Land 209      
Buildings and Improvements 1,797      
Total 2,006      
Accumulated Depreciation 12/31/2016 $ 1,472      
350 Old Silver Spring Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mechanicsburg, PA      
Land $ 510      
Buildings and Improvements 2,890      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,447      
Land 541      
Buildings and Improvements 9,306      
Total 9,847      
Accumulated Depreciation 12/31/2016 $ 4,114      
230-240 Welsh Pool Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Exton, PA      
Land $ 154      
Buildings and Improvements 851      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 355      
Land 170      
Buildings and Improvements 1,190      
Total 1,360      
Accumulated Depreciation 12/31/2016 $ 499      
254 Welsh Pool Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Exton, PA      
Land $ 75      
Buildings and Improvements 418      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 206      
Land 91      
Buildings and Improvements 608      
Total 699      
Accumulated Depreciation 12/31/2016 $ 285      
151-161 Philips Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Exton, PA      
Land $ 191      
Buildings and Improvements 1,059      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 388      
Land 229      
Buildings and Improvements 1,409      
Total 1,638      
Accumulated Depreciation 12/31/2016 $ 642      
216 Philips Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Exton, PA      
Land $ 199      
Buildings and Improvements 1,100      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 327      
Land 220      
Buildings and Improvements 1,406      
Total 1,626      
Accumulated Depreciation 12/31/2016 $ 624      
16522 Hunters Green Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hagerstown, MD      
Encumbrances $ 12,201      
Land 1,390      
Buildings and Improvements 13,104      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,790      
Land 1,863      
Buildings and Improvements 17,421      
Total 19,284      
Accumulated Depreciation 12/31/2016 $ 5,036      
18212 Shawley Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hagerstown, MD      
Encumbrances $ 5,157      
Land 1,000      
Buildings and Improvements 5,847      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,304      
Land 1,016      
Buildings and Improvements 7,135      
Total 8,151      
Accumulated Depreciation 12/31/2016 $ 2,107      
37 Valley View Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Jessup, PA      
Encumbrances $ 2,297      
Land 542      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,088      
Land 532      
Buildings and Improvements 3,098      
Total 3,630      
Accumulated Depreciation 12/31/2016 $ 916      
14 McFadden Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Palmer, PA      
Land $ 600      
Buildings and Improvements 1,349      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (274)      
Land 625      
Buildings and Improvements 1,050      
Total 1,675      
Accumulated Depreciation 12/31/2016 $ 333      
301 Railroad Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shiremanstown, PA      
Land $ 1,181      
Buildings and Improvements 4,447      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,179      
Land 1,328      
Buildings and Improvements 7,479      
Total 8,807      
Accumulated Depreciation 12/31/2016 $ 3,870      
431 Railroad Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shiremanstown, PA      
Encumbrances $ 6,466      
Land 1,293      
Buildings and Improvements 7,164      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,968      
Land 1,341      
Buildings and Improvements 9,084      
Total 10,425      
Accumulated Depreciation 12/31/2016 $ 4,398      
6951 Allentown Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Harrisburg, PA      
Land $ 585      
Buildings and Improvements 3,176      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 349      
Land 601      
Buildings and Improvements 3,509      
Total 4,110      
Accumulated Depreciation 12/31/2016 $ 1,526      
320 Reliance Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Washington, PA      
Land $ 201      
Buildings and Improvements 1,819      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (348)      
Land 178      
Buildings and Improvements 1,494      
Total 1,672      
Accumulated Depreciation 12/31/2016 $ 808      
2801 Red Lion Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Philadelphia, PA      
Land $ 950      
Buildings and Improvements 5,916      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7      
Land 964      
Buildings and Improvements 5,909      
Total 6,873      
Accumulated Depreciation 12/31/2016 $ 2,688      
3240 S. 78th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Philadelphia, PA      
Land $ 515      
Buildings and Improvements 1,245      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (514)      
Land 423      
Buildings and Improvements 823      
Total 1,246      
Accumulated Depreciation 12/31/2016 $ 274      
1351 Eisenhower Blvd., Bldg 1 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Harrisburg, PA      
Land $ 382      
Buildings and Improvements 2,343      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (55)      
Land 387      
Buildings and Improvements 2,283      
Total 2,670      
Accumulated Depreciation 12/31/2016 $ 912      
1351 Eisenhower Blvd., Bldg 2 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Harrisburg, PA      
Land $ 436      
Buildings and Improvements 1,587      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 75      
Land 443      
Buildings and Improvements 1,655      
Total 2,098      
Accumulated Depreciation 12/31/2016 $ 753      
200 Cascade Drive, Bldg. 1 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Allentown, PA      
Encumbrances $ 13,125      
Land 2,133      
Buildings and Improvements 17,562      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 692      
Land 2,769      
Buildings and Improvements 17,618      
Total 20,387      
Accumulated Depreciation 12/31/2016 $ 6,579      
200 Cascade Drive, Bldg. 2 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Allentown, PA      
Encumbrances $ 1,684      
Land 310      
Buildings and Improvements 2,268      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 84      
Land 316      
Buildings and Improvements 2,346      
Total 2,662      
Accumulated Depreciation 12/31/2016 $ 779      
1490 Dennison Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlisle, PA      
Land $ 1,500      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,881      
Land 2,341      
Buildings and Improvements 13,040      
Total 15,381      
Accumulated Depreciation 12/31/2016 $ 3,611      
298 First Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Covington Twp, PA      
Land $ 7,022      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 57,325      
Land 7,019      
Buildings and Improvements 57,328      
Total 64,347      
Accumulated Depreciation 12/31/2016 $ 12,062      
225 Cross Farm Lane [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) York, PA      
Encumbrances $ 17,641      
Land 4,718      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 23,163      
Land 4,715      
Buildings and Improvements 23,166      
Total 27,881      
Accumulated Depreciation 12/31/2016 $ 5,362      
6300 Bristol Pike [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Levittown, PA      
Land $ 1,074      
Buildings and Improvements 2,642      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (194)      
Land 964      
Buildings and Improvements 2,558      
Total 3,522      
Accumulated Depreciation 12/31/2016 $ 2,056      
2455 Boulevard of Generals [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Norristown, PA      
Encumbrances $ 2,923      
Land 1,200      
Buildings and Improvements 4,800      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 344      
Land 1,226      
Buildings and Improvements 5,118      
Total 6,344      
Accumulated Depreciation 12/31/2016 $ 1,804      
105 Steamboat Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Manchester, PA      
Land $ 4,085      
Buildings and Improvements 14,464      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1      
Land 4,070      
Buildings and Improvements 14,480      
Total 18,550      
Accumulated Depreciation 12/31/2016 $ 2,867      
20 Leo Lane [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) York County, PA      
Land $ 6,884      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 27,336      
Land 6,889      
Buildings and Improvements 27,331      
Total 34,220      
Accumulated Depreciation 12/31/2016 $ 2,040      
3895 Eastgate Blvd Bldg A [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Easton, PA      
Land $ 4,855      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 17,672      
Land 4,388      
Buildings and Improvements 18,139      
Total 22,527      
Accumulated Depreciation 12/31/2016 $ 558      
3895 Eastgate Blvd Bldg B [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Easton, PA      
Land $ 3,459      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,716      
Land 3,128      
Buildings and Improvements 14,047      
Total 17,175      
Accumulated Depreciation 12/31/2016 $ 446      
720-730 Landwehr Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Northbrook, IL      
Land $ 521      
Buildings and Improvements 2,982      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 826      
Land 521      
Buildings and Improvements 3,808      
Total 4,329      
Accumulated Depreciation 12/31/2016 $ 1,978      
1385 101st Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lemont, IL      
Encumbrances $ 3,746      
Land 967      
Buildings and Improvements 5,554      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,612      
Land 968      
Buildings and Improvements 7,165      
Total 8,133      
Accumulated Depreciation 12/31/2016 $ 3,661      
585 Slawin Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mount Prospect, IL      
Land $ 611      
Buildings and Improvements 3,505      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (50)      
Land 525      
Buildings and Improvements 3,541      
Total 4,066      
Accumulated Depreciation 12/31/2016 $ 1,812      
2300 Windsor Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Addison, IL      
Encumbrances $ 3,493      
Land 688      
Buildings and Improvements 3,943      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 889      
Land 696      
Buildings and Improvements 4,824      
Total 5,520      
Accumulated Depreciation 12/31/2016 $ 2,705      
305-311 Era Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Northbrook, IL      
Land $ 200      
Buildings and Improvements 1,154      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,352      
Land 205      
Buildings and Improvements 2,501      
Total 2,706      
Accumulated Depreciation 12/31/2016 $ 1,047      
800 Business Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mount Prospect, IL      
Land $ 631      
Buildings and Improvements 3,493      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 328      
Land 666      
Buildings and Improvements 3,786      
Total 4,452      
Accumulated Depreciation 12/31/2016 $ 1,524      
580 Slawin Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mount Prospect, IL      
Encumbrances $ 750      
Land 233      
Buildings and Improvements 1,292      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (37)      
Land 162      
Buildings and Improvements 1,326      
Total 1,488      
Accumulated Depreciation 12/31/2016 $ 643      
1005 101st Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lemont, IL      
Encumbrances $ 5,587      
Land 1,200      
Buildings and Improvements 6,643      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,102      
Land 1,220      
Buildings and Improvements 8,725      
Total 9,945      
Accumulated Depreciation 12/31/2016 $ 3,263      
175 Wall Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glendale Heights, IL      
Encumbrances $ 1,385      
Land 427      
Buildings and Improvements 2,363      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 215      
Land 433      
Buildings and Improvements 2,572      
Total 3,005      
Accumulated Depreciation 12/31/2016 $ 903      
251 Airport Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) North Aurora, IL      
Encumbrances $ 3,962      
Land 983      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,927      
Land 983      
Buildings and Improvements 6,927      
Total 7,910      
Accumulated Depreciation 12/31/2016 $ 2,661      
1661 Feehanville Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mount Prospect, IL      
Land $ 985      
Buildings and Improvements 5,455      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,627      
Land 1,044      
Buildings and Improvements 9,023      
Total 10,067      
Accumulated Depreciation 12/31/2016 $ 3,820      
400 Crossroads Pkwy [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Bolingbrook, IL      
Encumbrances $ 5,397      
Land 1,178      
Buildings and Improvements 9,453      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,081      
Land 1,181      
Buildings and Improvements 10,531      
Total 11,712      
Accumulated Depreciation 12/31/2016 $ 3,777      
7801 W. Industrial Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Forest Park, IL      
Land $ 1,215      
Buildings and Improvements 3,020      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,307      
Land 1,220      
Buildings and Improvements 4,322      
Total 5,542      
Accumulated Depreciation 12/31/2016 $ 1,600      
725 Kimberly Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carol Stream, IL      
Land $ 793      
Buildings and Improvements 1,395      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 231      
Land 801      
Buildings and Improvements 1,618      
Total 2,419      
Accumulated Depreciation 12/31/2016 $ 736      
17001 S. Vincennes [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thornton, IL      
Land $ 497      
Buildings and Improvements 504      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3      
Land 513      
Buildings and Improvements 491      
Total 1,004      
Accumulated Depreciation 12/31/2016 $ 412      
2900 W. 166th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Markham, IL      
Land $ 1,132      
Buildings and Improvements 4,293      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (881)      
Land 1,134      
Buildings and Improvements 3,410      
Total 4,544      
Accumulated Depreciation 12/31/2016 $ 1,041      
555 W. Algonquin Rd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington Heights, IL      
Encumbrances $ 1,942      
Land 574      
Buildings and Improvements 741      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,936      
Land 579      
Buildings and Improvements 2,672      
Total 3,251      
Accumulated Depreciation 12/31/2016 $ 895      
1501 Oakton Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Elk Grove Village, IL      
Encumbrances $ 5,947      
Land 3,369      
Buildings and Improvements 6,121      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 80      
Land 3,482      
Buildings and Improvements 6,088      
Total 9,570      
Accumulated Depreciation 12/31/2016 $ 1,678      
16500 W. 103rd Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Woodridge, IL      
Encumbrances $ 2,455      
Land 744      
Buildings and Improvements 2,458      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 420      
Land 762      
Buildings and Improvements 2,860      
Total 3,622      
Accumulated Depreciation 12/31/2016 $ 1,159      
8505 50th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kenosha, WI      
Land $ 3,212      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 32,956      
Land 3,212      
Buildings and Improvements 32,956      
Total 36,168      
Accumulated Depreciation 12/31/2016 $ 6,968      
4100 Rock Creek Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Joliet, IL      
Land $ 4,476      
Buildings and Improvements 16,061      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 818      
Land 4,476      
Buildings and Improvements 16,879      
Total 21,355      
Accumulated Depreciation 12/31/2016 $ 2,705      
10100 58th Place [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kenosha, WI      
Land $ 4,201      
Buildings and Improvements 17,604      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,446      
Land 4,201      
Buildings and Improvements 19,050      
Total 23,251      
Accumulated Depreciation 12/31/2016 $ 3,769      
401 Airport Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) North Aurora, IL      
Land $ 534      
Buildings and Improvements 1,957      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 12      
Land 534      
Buildings and Improvements 1,969      
Total 2,503      
Accumulated Depreciation 12/31/2016 $ 216      
3737 84th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Somers, WI      
Land $ 1,943      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 24,156      
Land 1,943      
Buildings and Improvements 24,156      
Total 26,099      
Accumulated Depreciation 12/31/2016 $ 345      
81 Paragon Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Romeoville, IL      
Land $ 1,787      
Buildings and Improvements 7,252      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 222      
Land 1,787      
Buildings and Improvements 7,474      
Total 9,261      
Accumulated Depreciation 12/31/2016 $ 62      
9900-9970 Princeton [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Cincinnati, OH      
Land $ 545      
Buildings and Improvements 3,088      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,797      
Land 566      
Buildings and Improvements 4,864      
Total 5,430      
Accumulated Depreciation 12/31/2016 $ 2,401      
4700-4750 Creek Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Blue Ash, OH      
Land $ 1,080      
Buildings and Improvements 6,118      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,509      
Land 1,109      
Buildings and Improvements 7,598      
Total 8,707      
Accumulated Depreciation 12/31/2016 $ 3,530      
4436 Mulhauser Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hamilton, OH      
Encumbrances $ 3,738      
Land 630      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,278      
Land 630      
Buildings and Improvements 5,278      
Total 5,908      
Accumulated Depreciation 12/31/2016 $ 1,848      
4438 Mulhauser Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Hamilton, OH      
Encumbrances $ 4,467      
Land 779      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,424      
Land 779      
Buildings and Improvements 6,424      
Total 7,203      
Accumulated Depreciation 12/31/2016 $ 2,338      
420 Wards Corner Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Loveland, OH      
Land $ 600      
Buildings and Improvements 1,083      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 825      
Land 606      
Buildings and Improvements 1,902      
Total 2,508      
Accumulated Depreciation 12/31/2016 $ 740      
422 Wards Corner Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Loveland, OH      
Land $ 600      
Buildings and Improvements 1,811      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 207      
Land 592      
Buildings and Improvements 2,026      
Total 2,618      
Accumulated Depreciation 12/31/2016 $ 751      
4663 Dues Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 858      
Buildings and Improvements 2,273      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 982      
Land 875      
Buildings and Improvements 3,238      
Total 4,113      
Accumulated Depreciation 12/31/2016 $ 2,616      
9345 Princeton-Glendale [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Encumbrances $ 1,312      
Land 818      
Buildings and Improvements 1,648      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 380      
Land 840      
Buildings and Improvements 2,006      
Total 2,846      
Accumulated Depreciation 12/31/2016 $ 1,388      
9525 Glades Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 347      
Buildings and Improvements 1,323      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 112      
Land 355      
Buildings and Improvements 1,427      
Total 1,782      
Accumulated Depreciation 12/31/2016 $ 536      
9776-9876 Windisch Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 392      
Buildings and Improvements 1,744      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 152      
Land 394      
Buildings and Improvements 1,894      
Total 2,288      
Accumulated Depreciation 12/31/2016 $ 688      
9808-9830 Windisch Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 395      
Buildings and Improvements 2,541      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 202      
Land 397      
Buildings and Improvements 2,741      
Total 3,138      
Accumulated Depreciation 12/31/2016 $ 824      
9842-9862 Windisch Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 506      
Buildings and Improvements 3,148      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 153      
Land 508      
Buildings and Improvements 3,299      
Total 3,807      
Accumulated Depreciation 12/31/2016 $ 924      
9872-9898 Windisch Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 546      
Buildings and Improvements 3,039      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 150      
Land 548      
Buildings and Improvements 3,187      
Total 3,735      
Accumulated Depreciation 12/31/2016 $ 1,003      
9902-9922 Windisch Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westchester, OH      
Land $ 623      
Buildings and Improvements 4,003      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,094      
Land 627      
Buildings and Improvements 5,093      
Total 5,720      
Accumulated Depreciation 12/31/2016 $ 1,929      
30311 Emerald Valley Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glenwillow, OH      
Encumbrances $ 6,769      
Land 681      
Buildings and Improvements 11,838      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 993      
Land 691      
Buildings and Improvements 12,821      
Total 13,512      
Accumulated Depreciation 12/31/2016 $ 4,818      
30333 Emerald Valley Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glenwillow, OH      
Encumbrances $ 3,466      
Land 466      
Buildings and Improvements 5,447      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (615)      
Land 475      
Buildings and Improvements 4,823      
Total 5,298      
Accumulated Depreciation 12/31/2016 $ 1,571      
7800 Cochran Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glenwillow, OH      
Encumbrances $ 3,801      
Land 972      
Buildings and Improvements 7,033      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 243      
Land 991      
Buildings and Improvements 7,257      
Total 8,248      
Accumulated Depreciation 12/31/2016 $ 2,714      
7900 Cochran Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glenwillow, OH      
Encumbrances $ 3,645      
Land 775      
Buildings and Improvements 6,244      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 259      
Land 792      
Buildings and Improvements 6,486      
Total 7,278      
Accumulated Depreciation 12/31/2016 $ 2,407      
7905 Cochran Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Glenwillow, OH      
Encumbrances $ 4,009      
Land 920      
Buildings and Improvements 6,174      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 42      
Land 922      
Buildings and Improvements 6,214      
Total 7,136      
Accumulated Depreciation 12/31/2016 $ 2,072      
30600 Carter Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Solon, OH      
Land $ 989      
Buildings and Improvements 3,042      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,406      
Land 1,022      
Buildings and Improvements 4,415      
Total 5,437      
Accumulated Depreciation 12/31/2016 $ 3,158      
8181 Darrow Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Twinsburg, OH      
Encumbrances $ 7,171      
Land 2,478      
Buildings and Improvements 6,791      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,064      
Land 2,496      
Buildings and Improvements 8,837      
Total 11,333      
Accumulated Depreciation 12/31/2016 $ 4,448      
2406-2416 Walnut Ridge [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 178      
Buildings and Improvements 1,006      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 592      
Land 172      
Buildings and Improvements 1,604      
Total 1,776      
Accumulated Depreciation 12/31/2016 $ 631      
2401-2419 Walnut Ridge [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 148      
Buildings and Improvements 839      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 416      
Land 142      
Buildings and Improvements 1,261      
Total 1,403      
Accumulated Depreciation 12/31/2016 $ 528      
900-906 Great Southwest Pkwy [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 237      
Buildings and Improvements 1,342      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 625      
Land 270      
Buildings and Improvements 1,934      
Total 2,204      
Accumulated Depreciation 12/31/2016 $ 972      
3000 West Commerce [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 456      
Buildings and Improvements 2,584      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,208      
Land 469      
Buildings and Improvements 3,779      
Total 4,248      
Accumulated Depreciation 12/31/2016 $ 1,721      
405-407 113th [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 181      
Buildings and Improvements 1,026      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 463      
Land 185      
Buildings and Improvements 1,485      
Total 1,670      
Accumulated Depreciation 12/31/2016 $ 628      
816 111th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 251      
Buildings and Improvements 1,421      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 139      
Land 258      
Buildings and Improvements 1,553      
Total 1,811      
Accumulated Depreciation 12/31/2016 $ 714      
7427 Dogwood Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 96      
Buildings and Improvements 532      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 322      
Land 102      
Buildings and Improvements 848      
Total 950      
Accumulated Depreciation 12/31/2016 $ 351      
7348-54 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 88      
Buildings and Improvements 489      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 237      
Land 94      
Buildings and Improvements 720      
Total 814      
Accumulated Depreciation 12/31/2016 $ 315      
7339-41 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 98      
Buildings and Improvements 541      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 180      
Land 104      
Buildings and Improvements 715      
Total 819      
Accumulated Depreciation 12/31/2016 $ 302      
7437-45 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 102      
Buildings and Improvements 563      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 283      
Land 108      
Buildings and Improvements 840      
Total 948      
Accumulated Depreciation 12/31/2016 $ 356      
7331-59 Airport Freeway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Encumbrances $ 1,844      
Land 354      
Buildings and Improvements 1,958      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 603      
Land 372      
Buildings and Improvements 2,543      
Total 2,915      
Accumulated Depreciation 12/31/2016 $ 1,054      
7338-60 Dogwood Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 106      
Buildings and Improvements 587      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 257      
Land 112      
Buildings and Improvements 838      
Total 950      
Accumulated Depreciation 12/31/2016 $ 337      
7450-70 Dogwood Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 106      
Buildings and Improvements 584      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 156      
Land 112      
Buildings and Improvements 734      
Total 846      
Accumulated Depreciation 12/31/2016 $ 316      
7423-49 Airport Freeway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Encumbrances $ 1,562      
Land 293      
Buildings and Improvements 1,621      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 554      
Land 308      
Buildings and Improvements 2,160      
Total 2,468      
Accumulated Depreciation 12/31/2016 $ 882      
7400 Whitehall Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 109      
Buildings and Improvements 603      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 95      
Land 115      
Buildings and Improvements 692      
Total 807      
Accumulated Depreciation 12/31/2016 $ 302      
1602-1654 Terre Colony [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 458      
Buildings and Improvements 2,596      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 859      
Land 468      
Buildings and Improvements 3,445      
Total 3,913      
Accumulated Depreciation 12/31/2016 $ 1,356      
2220 Merritt Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Garland, TX      
Land $ 352      
Buildings and Improvements 1,993      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 326      
Land 316      
Buildings and Improvements 2,355      
Total 2,671      
Accumulated Depreciation 12/31/2016 $ 807      
2485-2505 Merritt Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Garland, TX      
Land $ 431      
Buildings and Improvements 2,440      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 529      
Land 443      
Buildings and Improvements 2,957      
Total 3,400      
Accumulated Depreciation 12/31/2016 $ 1,105      
2110 Hutton Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Land $ 374      
Buildings and Improvements 2,117      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 106      
Land 255      
Buildings and Improvements 2,342      
Total 2,597      
Accumulated Depreciation 12/31/2016 $ 1,072      
2025 McKenzie Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Land $ 437      
Buildings and Improvements 2,478      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 459      
Land 442      
Buildings and Improvements 2,932      
Total 3,374      
Accumulated Depreciation 12/31/2016 $ 1,059      
2019 McKenzie Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Land $ 502      
Buildings and Improvements 2,843      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 283      
Land 507      
Buildings and Improvements 3,121      
Total 3,628      
Accumulated Depreciation 12/31/2016 $ 1,202      
2029-2035 McKenzie Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Encumbrances $ 1,495      
Land 306      
Buildings and Improvements 1,870      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 234      
Land 306      
Buildings and Improvements 2,104      
Total 2,410      
Accumulated Depreciation 12/31/2016 $ 849      
2015 McKenzie Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Encumbrances $ 1,949      
Land 510      
Buildings and Improvements 2,891      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 491      
Land 516      
Buildings and Improvements 3,376      
Total 3,892      
Accumulated Depreciation 12/31/2016 $ 1,309      
2009 McKenzie Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carrolton, TX      
Encumbrances $ 1,853      
Land 476      
Buildings and Improvements 2,699      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 524      
Land 481      
Buildings and Improvements 3,218      
Total 3,699      
Accumulated Depreciation 12/31/2016 $ 1,307      
900-1100 Avenue S [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Land $ 623      
Buildings and Improvements 3,528      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 994      
Land 629      
Buildings and Improvements 4,516      
Total 5,145      
Accumulated Depreciation 12/31/2016 $ 1,530      
Plano Crossing Bus. Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Plano, TX      
Encumbrances $ 7,121      
Land 1,961      
Buildings and Improvements 11,112      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,143      
Land 1,981      
Buildings and Improvements 12,235      
Total 14,216      
Accumulated Depreciation 12/31/2016 $ 4,292      
7413A-C Dogwood Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 110      
Buildings and Improvements 623      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 245      
Land 111      
Buildings and Improvements 867      
Total 978      
Accumulated Depreciation 12/31/2016 $ 338      
7450 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 36      
Buildings and Improvements 204      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 196      
Land 36      
Buildings and Improvements 400      
Total 436      
Accumulated Depreciation 12/31/2016 $ 130      
7436 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 57      
Buildings and Improvements 324      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 192      
Land 58      
Buildings and Improvements 515      
Total 573      
Accumulated Depreciation 12/31/2016 $ 146      
7426 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 76      
Buildings and Improvements 429      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 186      
Land 76      
Buildings and Improvements 615      
Total 691      
Accumulated Depreciation 12/31/2016 $ 200      
7427-7429 Tower Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 75      
Buildings and Improvements 427      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 146      
Land 76      
Buildings and Improvements 572      
Total 648      
Accumulated Depreciation 12/31/2016 $ 265      
2840-2842 Handley Ederville Rd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 112      
Buildings and Improvements 635      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 77      
Land 113      
Buildings and Improvements 711      
Total 824      
Accumulated Depreciation 12/31/2016 $ 247      
7451-7477 Airport Freeway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Encumbrances $ 1,344      
Land 256      
Buildings and Improvements 1,453      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 415      
Land 259      
Buildings and Improvements 1,865      
Total 2,124      
Accumulated Depreciation 12/31/2016 $ 658      
7450 Whitehall Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 104      
Buildings and Improvements 591      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 339      
Land 105      
Buildings and Improvements 929      
Total 1,034      
Accumulated Depreciation 12/31/2016 $ 303      
3000 Wesley Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Land $ 208      
Buildings and Improvements 1,181      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 47      
Land 211      
Buildings and Improvements 1,225      
Total 1,436      
Accumulated Depreciation 12/31/2016 $ 428      
7451 Dogwood Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Hills, TX      
Encumbrances $ 654      
Land 133      
Buildings and Improvements 753      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 168      
Land 134      
Buildings and Improvements 920      
Total 1,054      
Accumulated Depreciation 12/31/2016 $ 300      
825-827 Avenue H [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Encumbrances $ 2,076      
Land 600      
Buildings and Improvements 3,006      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 90      
Land 604      
Buildings and Improvements 3,092      
Total 3,696      
Accumulated Depreciation 12/31/2016 $ 1,491      
1013-31 Avenue M [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Land $ 300      
Buildings and Improvements 1,504      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 301      
Land 302      
Buildings and Improvements 1,803      
Total 2,105      
Accumulated Depreciation 12/31/2016 $ 721      
1172-84 113th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Land $ 700      
Buildings and Improvements 3,509      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (12)      
Land 704      
Buildings and Improvements 3,493      
Total 4,197      
Accumulated Depreciation 12/31/2016 $ 1,185      
1200-16 Avenue H [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 600      
Buildings and Improvements 2,846      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 364      
Land 604      
Buildings and Improvements 3,206      
Total 3,810      
Accumulated Depreciation 12/31/2016 $ 1,157      
1322-66 W. North Carrier Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Encumbrances $ 3,970      
Land 1,000      
Buildings and Improvements 5,012      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,055      
Land 1,006      
Buildings and Improvements 6,061      
Total 7,067      
Accumulated Depreciation 12/31/2016 $ 2,203      
2401-2407 Centennial Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Encumbrances $ 1,949      
Land 600      
Buildings and Improvements 2,534      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 548      
Land 604      
Buildings and Improvements 3,078      
Total 3,682      
Accumulated Depreciation 12/31/2016 $ 1,219      
3111 West Commerce Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Encumbrances $ 3,463      
Land 1,000      
Buildings and Improvements 3,364      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,801      
Land 1,011      
Buildings and Improvements 5,154      
Total 6,165      
Accumulated Depreciation 12/31/2016 $ 1,930      
13800 Senlac Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmers Branch, TX      
Encumbrances $ 2,686      
Land 823      
Buildings and Improvements 4,042      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (83)      
Land 825      
Buildings and Improvements 3,957      
Total 4,782      
Accumulated Depreciation 12/31/2016 $ 1,648      
801-831 S Great Southwest Pkwy [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Land $ 2,581      
Buildings and Improvements 16,556      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 343      
Land 2,586      
Buildings and Improvements 16,894      
Total 19,480      
Accumulated Depreciation 12/31/2016 $ 9,495      
801 Heinz Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Encumbrances $ 2,709      
Land 599      
Buildings and Improvements 3,327      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 355      
Land 601      
Buildings and Improvements 3,680      
Total 4,281      
Accumulated Depreciation 12/31/2016 $ 1,682      
901-937 Heinz Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Grand Prairie, TX      
Encumbrances $ 2,088      
Land 493      
Buildings and Improvements 2,758      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 48      
Land 481      
Buildings and Improvements 2,818      
Total 3,299      
Accumulated Depreciation 12/31/2016 $ 1,365      
3301 Century Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Irving, TX      
Land $ 760      
Buildings and Improvements 3,856      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 53      
Land 771      
Buildings and Improvements 3,898      
Total 4,669      
Accumulated Depreciation 12/31/2016 $ 1,114      
3901 W Miller Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Garland, TX      
Land $ 1,912      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 15,493      
Land 1,947      
Buildings and Improvements 15,458      
Total 17,405      
Accumulated Depreciation 12/31/2016 $ 4,226      
1251 North Cockrell Hill Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 2,064      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,532      
Land 1,073      
Buildings and Improvements 14,523      
Total 15,596      
Accumulated Depreciation 12/31/2016 $ 715      
1171 North Cockrell Hill Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Dallas, TX      
Land $ 1,215      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 10,968      
Land 632      
Buildings and Improvements 11,551      
Total 12,183      
Accumulated Depreciation 12/31/2016 $ 472      
3996 Scientific Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 1,301      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 8,073      
Land 1,349      
Buildings and Improvements 8,025      
Total 9,374      
Accumulated Depreciation 12/31/2016 $ 412      
750 Gateway Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Coppell, TX      
Land $ 1,452      
Buildings and Improvements 4,679      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 80      
Land 1,452      
Buildings and Improvements 4,759      
Total 6,211      
Accumulated Depreciation 12/31/2016 $ 210      
2250 East Bardin Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Arlington, TX      
Land $ 1,603      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 10,284      
Land 1,603      
Buildings and Improvements 10,284      
Total 11,887      
Accumulated Depreciation 12/31/2016 $ 180      
4785 Elati [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 173      
Buildings and Improvements 981      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 374      
Land 175      
Buildings and Improvements 1,353      
Total 1,528      
Accumulated Depreciation 12/31/2016 $ 552      
4770 Fox Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 132      
Buildings and Improvements 750      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 259      
Land 134      
Buildings and Improvements 1,007      
Total 1,141      
Accumulated Depreciation 12/31/2016 $ 423      
3851-3871 Revere [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 361      
Buildings and Improvements 2,047      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 538      
Land 368      
Buildings and Improvements 2,578      
Total 2,946      
Accumulated Depreciation 12/31/2016 $ 1,165      
4570 Ivy Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 219      
Buildings and Improvements 1,239      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 265      
Land 220      
Buildings and Improvements 1,503      
Total 1,723      
Accumulated Depreciation 12/31/2016 $ 763      
5855 Stapleton Drive North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 288      
Buildings and Improvements 1,630      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 219      
Land 290      
Buildings and Improvements 1,847      
Total 2,137      
Accumulated Depreciation 12/31/2016 $ 873      
5885 Stapleton Drive North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 376      
Buildings and Improvements 2,129      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 320      
Land 380      
Buildings and Improvements 2,445      
Total 2,825      
Accumulated Depreciation 12/31/2016 $ 1,151      
5977 North Broadway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Encumbrances $ 1,493      
Land 268      
Buildings and Improvements 1,518      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 573      
Land 271      
Buildings and Improvements 2,088      
Total 2,359      
Accumulated Depreciation 12/31/2016 $ 935      
5952-5978 North Broadway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Encumbrances $ 2,221      
Land 414      
Buildings and Improvements 2,346      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 750      
Land 422      
Buildings and Improvements 3,088      
Total 3,510      
Accumulated Depreciation 12/31/2016 $ 1,441      
4721 Ironton Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 232      
Buildings and Improvements 1,313      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 325      
Land 236      
Buildings and Improvements 1,634      
Total 1,870      
Accumulated Depreciation 12/31/2016 $ 744      
7003 E 47th Ave Drive [Member ]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 441      
Buildings and Improvements 2,689      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 45      
Land 441      
Buildings and Improvements 2,734      
Total 3,175      
Accumulated Depreciation 12/31/2016 $ 1,321      
9500 West 49th Street - A [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Wheatridge, CO      
Encumbrances $ 1,019      
Land 283      
Buildings and Improvements 1,625      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 126      
Land 287      
Buildings and Improvements 1,747      
Total 2,034      
Accumulated Depreciation 12/31/2016 $ 888      
9500 West 49th Street - B [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Wheatridge, CO      
Encumbrances $ 852      
Land 225      
Buildings and Improvements 1,272      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 205      
Land 227      
Buildings and Improvements 1,475      
Total 1,702      
Accumulated Depreciation 12/31/2016 $ 705      
9500 West 49th Street - C [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Wheatridge, CO      
Encumbrances $ 2,198      
Land 600      
Buildings and Improvements 3,409      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 378      
Land 601      
Buildings and Improvements 3,786      
Total 4,387      
Accumulated Depreciation 12/31/2016 $ 1,725      
9500 West 49th Street - D [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Wheatridge, CO      
Encumbrances $ 1,102      
Land 246      
Buildings and Improvements 1,537      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 417      
Land 247      
Buildings and Improvements 1,953      
Total 2,200      
Accumulated Depreciation 12/31/2016 $ 1,050      
451-591 East 124th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thornton, CO      
Land $ 383      
Buildings and Improvements 2,145      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 498      
Land 383      
Buildings and Improvements 2,643      
Total 3,026      
Accumulated Depreciation 12/31/2016 $ 1,301      
6547 South Racine Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Centennial, CO      
Encumbrances $ 2,652      
Land 739      
Buildings and Improvements 4,241      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 278      
Land 739      
Buildings and Improvements 4,519      
Total 5,258      
Accumulated Depreciation 12/31/2016 $ 2,102      
11701 East 53rd Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 416      
Buildings and Improvements 2,355      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 350      
Land 422      
Buildings and Improvements 2,699      
Total 3,121      
Accumulated Depreciation 12/31/2016 $ 1,269      
5401 Oswego [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 273      
Buildings and Improvements 1,547      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 224      
Land 278      
Buildings and Improvements 1,766      
Total 2,044      
Accumulated Depreciation 12/31/2016 $ 825      
445 Bryant Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 1,829      
Buildings and Improvements 10,219      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,707      
Land 1,829      
Buildings and Improvements 12,926      
Total 14,755      
Accumulated Depreciation 12/31/2016 $ 5,406      
12055 E 49th Ave/4955 Peoria [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 298      
Buildings and Improvements 1,688      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 469      
Land 305      
Buildings and Improvements 2,150      
Total 2,455      
Accumulated Depreciation 12/31/2016 $ 1,001      
4940 - 4950 Paris [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 152      
Buildings and Improvements 861      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 287      
Land 156      
Buildings and Improvements 1,144      
Total 1,300      
Accumulated Depreciation 12/31/2016 $ 554      
4970 Paris [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 95      
Buildings and Improvements 537      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 103      
Land 97      
Buildings and Improvements 638      
Total 735      
Accumulated Depreciation 12/31/2016 $ 289      
7367 South Revere Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Centennial, CO      
Land $ 926      
Buildings and Improvements 5,124      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,065      
Land 934      
Buildings and Improvements 6,181      
Total 7,115      
Accumulated Depreciation 12/31/2016 $ 2,819      
8200 East Park Meadows Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lone Tree, CO      
Encumbrances $ 5,470      
Land 1,297      
Buildings and Improvements 7,348      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,092      
Land 1,304      
Buildings and Improvements 8,433      
Total 9,737      
Accumulated Depreciation 12/31/2016 $ 3,499      
3250 Quentin Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aurora, CO      
Encumbrances $ 4,987      
Land 1,220      
Buildings and Improvements 6,911      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 747      
Land 1,230      
Buildings and Improvements 7,648      
Total 8,878      
Accumulated Depreciation 12/31/2016 $ 3,136      
8020 Southpark Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Littleton, CO      
Land $ 739      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,308      
Land 781      
Buildings and Improvements 3,266      
Total 4,047      
Accumulated Depreciation 12/31/2016 $ 1,199      
1130 W. 124th Ave. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westminster, CO      
Land $ 441      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,586      
Land 441      
Buildings and Improvements 3,586      
Total 4,027      
Accumulated Depreciation 12/31/2016 $ 1,195      
1070 W. 124th Ave. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westminster, CO      
Land $ 374      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,723      
Land 374      
Buildings and Improvements 2,723      
Total 3,097      
Accumulated Depreciation 12/31/2016 $ 1,026      
1020 W. 124th Ave. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westminster, CO      
Land $ 374      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,734      
Land 374      
Buildings and Improvements 2,734      
Total 3,108      
Accumulated Depreciation 12/31/2016 $ 1,072      
8810 W. 116th Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Broomfield, CO      
Land $ 312      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,856      
Land 370      
Buildings and Improvements 1,798      
Total 2,168      
Accumulated Depreciation 12/31/2016 $ 600      
960 W. 124th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Westminster, CO      
Land $ 441      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,652      
Land 442      
Buildings and Improvements 3,651      
Total 4,093      
Accumulated Depreciation 12/31/2016 $ 1,484      
8820 W. 116th Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Broomfield, CO      
Land $ 338      
Buildings and Improvements 1,918      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 386      
Land 372      
Buildings and Improvements 2,270      
Total 2,642      
Accumulated Depreciation 12/31/2016 $ 811      
8835 W. 116th Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Broomfield, CO      
Land $ 1,151      
Buildings and Improvements 6,523      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,095      
Land 1,304      
Buildings and Improvements 7,465      
Total 8,769      
Accumulated Depreciation 12/31/2016 $ 2,646      
18150 E. 32nd Place [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aurora, CO      
Land $ 563      
Buildings and Improvements 3,188      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 174      
Land 572      
Buildings and Improvements 3,353      
Total 3,925      
Accumulated Depreciation 12/31/2016 $ 1,254      
3400 Fraser Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Aurora, CO      
Encumbrances $ 2,051      
Land 616      
Buildings and Improvements 3,593      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (142)      
Land 620      
Buildings and Improvements 3,447      
Total 4,067      
Accumulated Depreciation 12/31/2016 $ 1,246      
7005 E. 46th Avenue Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Encumbrances $ 1,218      
Land 512      
Buildings and Improvements 2,025      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (121)      
Land 517      
Buildings and Improvements 1,899      
Total 2,416      
Accumulated Depreciation 12/31/2016 $ 670      
4001 Salazar Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Frederick, CO      
Encumbrances $ 3,539      
Land 1,271      
Buildings and Improvements 6,508      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (713)      
Land 1,276      
Buildings and Improvements 5,790      
Total 7,066      
Accumulated Depreciation 12/31/2016 $ 1,670      
5909-5915 N. Broadway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Denver, CO      
Land $ 495      
Buildings and Improvements 1,268      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 107      
Land 500      
Buildings and Improvements 1,370      
Total 1,870      
Accumulated Depreciation 12/31/2016 $ 711      
47461 Clipper [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Plymouth Township, MI      
Land $ 122      
Buildings and Improvements 723      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 103      
Land 122      
Buildings and Improvements 826      
Total 948      
Accumulated Depreciation 12/31/2016 $ 448      
449 Executive Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 125      
Buildings and Improvements 425      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 974      
Land 218      
Buildings and Improvements 1,306      
Total 1,524      
Accumulated Depreciation 12/31/2016 $ 1,207      
1416 Meijer Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 94      
Buildings and Improvements 394      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 399      
Land 121      
Buildings and Improvements 766      
Total 887      
Accumulated Depreciation 12/31/2016 $ 714      
1624 Meijer Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 236      
Buildings and Improvements 1,406      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,093      
Land 373      
Buildings and Improvements 2,362      
Total 2,735      
Accumulated Depreciation 12/31/2016 $ 2,138      
1972 Meijer Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 315      
Buildings and Improvements 1,301      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 787      
Land 372      
Buildings and Improvements 2,031      
Total 2,403      
Accumulated Depreciation 12/31/2016 $ 1,698      
1707 Northwood Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 95      
Buildings and Improvements 262      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,724      
Land 239      
Buildings and Improvements 1,842      
Total 2,081      
Accumulated Depreciation 12/31/2016 $ 1,617      
1788 Northwood Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 50      
Buildings and Improvements 196      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 486      
Land 103      
Buildings and Improvements 629      
Total 732      
Accumulated Depreciation 12/31/2016 $ 571      
1826 Northwood Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 55      
Buildings and Improvements 208      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 472      
Land 103      
Buildings and Improvements 632      
Total 735      
Accumulated Depreciation 12/31/2016 $ 561      
1864 Northwood Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 57      
Buildings and Improvements 190      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 489      
Land 107      
Buildings and Improvements 629      
Total 736      
Accumulated Depreciation 12/31/2016 $ 576      
2730 Research Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 903      
Buildings and Improvements 4,215      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 829      
Land 903      
Buildings and Improvements 5,044      
Total 5,947      
Accumulated Depreciation 12/31/2016 $ 4,400      
2791 Research Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 557      
Buildings and Improvements 2,731      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,020      
Land 560      
Buildings and Improvements 3,748      
Total 4,308      
Accumulated Depreciation 12/31/2016 $ 2,892      
2871 Research Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 324      
Buildings and Improvements 1,487      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 412      
Land 327      
Buildings and Improvements 1,896      
Total 2,223      
Accumulated Depreciation 12/31/2016 $ 1,503      
2870 Technology Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 275      
Buildings and Improvements 1,262      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 356      
Land 279      
Buildings and Improvements 1,614      
Total 1,893      
Accumulated Depreciation 12/31/2016 $ 1,383      
2900 Technology Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 214      
Buildings and Improvements 977      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 513      
Land 219      
Buildings and Improvements 1,485      
Total 1,704      
Accumulated Depreciation 12/31/2016 $ 1,051      
2930 Technology Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 131      
Buildings and Improvements 594      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 452      
Land 138      
Buildings and Improvements 1,039      
Total 1,177      
Accumulated Depreciation 12/31/2016 $ 762      
2950 Technology Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 178      
Buildings and Improvements 819      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 368      
Land 185      
Buildings and Improvements 1,180      
Total 1,365      
Accumulated Depreciation 12/31/2016 $ 894      
23014 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 39      
Buildings and Improvements 203      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 191      
Land 56      
Buildings and Improvements 377      
Total 433      
Accumulated Depreciation 12/31/2016 $ 340      
23028 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 98      
Buildings and Improvements 507      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 262      
Land 125      
Buildings and Improvements 742      
Total 867      
Accumulated Depreciation 12/31/2016 $ 696      
23035 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 71      
Buildings and Improvements 355      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 290      
Land 93      
Buildings and Improvements 623      
Total 716      
Accumulated Depreciation 12/31/2016 $ 536      
23065 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 71      
Buildings and Improvements 408      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 254      
Land 93      
Buildings and Improvements 640      
Total 733      
Accumulated Depreciation 12/31/2016 $ 554      
23093 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 211      
Buildings and Improvements 1,024      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,337      
Land 295      
Buildings and Improvements 2,277      
Total 2,572      
Accumulated Depreciation 12/31/2016 $ 1,866      
23135 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 146      
Buildings and Improvements 701      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 310      
Land 158      
Buildings and Improvements 999      
Total 1,157      
Accumulated Depreciation 12/31/2016 $ 895      
23163 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 111      
Buildings and Improvements 513      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 393      
Land 138      
Buildings and Improvements 879      
Total 1,017      
Accumulated Depreciation 12/31/2016 $ 769      
23177 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 175      
Buildings and Improvements 1,007      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 689      
Land 254      
Buildings and Improvements 1,617      
Total 1,871      
Accumulated Depreciation 12/31/2016 $ 1,409      
23206 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 125      
Buildings and Improvements 531      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 371      
Land 137      
Buildings and Improvements 890      
Total 1,027      
Accumulated Depreciation 12/31/2016 $ 795      
23370 Commerce Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Farmington Hills, MI      
Land $ 59      
Buildings and Improvements 233      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 209      
Land 66      
Buildings and Improvements 435      
Total 501      
Accumulated Depreciation 12/31/2016 $ 379      
1451 East Lincoln Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Madison Heights, MI      
Land $ 299      
Buildings and Improvements 1,703      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (179)      
Land 148      
Buildings and Improvements 1,675      
Total 1,823      
Accumulated Depreciation 12/31/2016 $ 949      
4400 Purks Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Auburn Hills, MI      
Land $ 602      
Buildings and Improvements 3,410      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,982      
Land 612      
Buildings and Improvements 7,382      
Total 7,994      
Accumulated Depreciation 12/31/2016 $ 3,447      
12707 Eckles Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Plymouth Township, MI      
Land $ 255      
Buildings and Improvements 1,445      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 235      
Land 267      
Buildings and Improvements 1,668      
Total 1,935      
Accumulated Depreciation 12/31/2016 $ 812      
32975 Capitol Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Livonia, MI      
Land $ 135      
Buildings and Improvements 748      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (188)      
Land 77      
Buildings and Improvements 618      
Total 695      
Accumulated Depreciation 12/31/2016 $ 331      
32920 Capitol Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Livonia, MI      
Land $ 76      
Buildings and Improvements 422      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (62)      
Land 27      
Buildings and Improvements 409      
Total 436      
Accumulated Depreciation 12/31/2016 $ 257      
11923 Brookfield Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Livonia, MI      
Land $ 120      
Buildings and Improvements 665      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (314)      
Land 32      
Buildings and Improvements 439      
Total 471      
Accumulated Depreciation 12/31/2016 $ 288      
12886 Westmore Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Livonia, MI      
Land $ 190      
Buildings and Improvements 1,050      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (351)      
Land 86      
Buildings and Improvements 803      
Total 889      
Accumulated Depreciation 12/31/2016 $ 478      
47711 Clipper Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Plymouth Township, MI      
Land $ 539      
Buildings and Improvements 2,983      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 540      
Land 575      
Buildings and Improvements 3,487      
Total 4,062      
Accumulated Depreciation 12/31/2016 $ 1,517      
32975 Industrial Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Livonia, MI      
Land $ 160      
Buildings and Improvements 887      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (175)      
Land 92      
Buildings and Improvements 780      
Total 872      
Accumulated Depreciation 12/31/2016 $ 424      
12874 Westmore Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Livonia, MI      
Land $ 137      
Buildings and Improvements 761      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (241)      
Land 58      
Buildings and Improvements 599      
Total 657      
Accumulated Depreciation 12/31/2016 $ 324      
1775 Bellingham [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 344      
Buildings and Improvements 1,902      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 329      
Land 367      
Buildings and Improvements 2,208      
Total 2,575      
Accumulated Depreciation 12/31/2016 $ 1,008      
1785 East Maple [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 92      
Buildings and Improvements 507      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 200      
Land 98      
Buildings and Improvements 701      
Total 799      
Accumulated Depreciation 12/31/2016 $ 298      
980 Chicago [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 206      
Buildings and Improvements 1,141      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 333      
Land 220      
Buildings and Improvements 1,460      
Total 1,680      
Accumulated Depreciation 12/31/2016 $ 621      
1885 Enterprise Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 209      
Buildings and Improvements 1,158      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 589      
Land 223      
Buildings and Improvements 1,733      
Total 1,956      
Accumulated Depreciation 12/31/2016 $ 752      
1935-55 Enterprise Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rochester Hills, MI      
Land $ 1,285      
Buildings and Improvements 7,144      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,322      
Land 1,371      
Buildings and Improvements 8,380      
Total 9,751      
Accumulated Depreciation 12/31/2016 $ 3,712      
5500 Enterprise Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Warren, MI      
Land $ 675      
Buildings and Improvements 3,737      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 750      
Land 721      
Buildings and Improvements 4,441      
Total 5,162      
Accumulated Depreciation 12/31/2016 $ 1,987      
750 Chicago Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 323      
Buildings and Improvements 1,790      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 392      
Land 345      
Buildings and Improvements 2,160      
Total 2,505      
Accumulated Depreciation 12/31/2016 $ 993      
800 Chicago Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 283      
Buildings and Improvements 1,567      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 380      
Land 302      
Buildings and Improvements 1,928      
Total 2,230      
Accumulated Depreciation 12/31/2016 $ 863      
850 Chicago Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 183      
Buildings and Improvements 1,016      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 218      
Land 196      
Buildings and Improvements 1,221      
Total 1,417      
Accumulated Depreciation 12/31/2016 $ 555      
1100 East Mandoline Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Madison Heights, MI      
Land $ 888      
Buildings and Improvements 4,915      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (1,257)      
Land 332      
Buildings and Improvements 4,214      
Total 4,546      
Accumulated Depreciation 12/31/2016 $ 2,703      
4872 S. Lapeer Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lake Orion Twsp, MI      
Land $ 1,342      
Buildings and Improvements 5,441      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,214      
Land 1,412      
Buildings and Improvements 6,585      
Total 7,997      
Accumulated Depreciation 12/31/2016 $ 3,129      
1400 Allen Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 209      
Buildings and Improvements 1,154      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 380      
Land 212      
Buildings and Improvements 1,531      
Total 1,743      
Accumulated Depreciation 12/31/2016 $ 552      
1408 Allen Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 151      
Buildings and Improvements 834      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 121      
Land 153      
Buildings and Improvements 953      
Total 1,106      
Accumulated Depreciation 12/31/2016 $ 375      
28435 Automation Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Wixom, MI      
Land $ 621      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,664      
Land 628      
Buildings and Improvements 3,657      
Total 4,285      
Accumulated Depreciation 12/31/2016 $ 1,103      
32200 N Avis Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Madison Heights, MI      
Land $ 503      
Buildings and Improvements 3,367      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (1,452)      
Land 195      
Buildings and Improvements 2,223      
Total 2,418      
Accumulated Depreciation 12/31/2016 $ 802      
100 Kay Industrial Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orion Township, MI      
Land $ 677      
Buildings and Improvements 2,018      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 156      
Land 685      
Buildings and Improvements 2,166      
Total 2,851      
Accumulated Depreciation 12/31/2016 $ 1,032      
11800 Sears Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Livonia, MI      
Land $ 693      
Buildings and Improvements 1,507      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,212      
Land 476      
Buildings and Improvements 2,936      
Total 3,412      
Accumulated Depreciation 12/31/2016 $ 1,723      
1099 Chicago Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Troy, MI      
Land $ 1,277      
Buildings and Improvements 1,332      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (1,134)      
Land 303      
Buildings and Improvements 1,172      
Total 1,475      
Accumulated Depreciation 12/31/2016 $ 618      
42555 Merrill Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Sterling Heights, MI      
Land $ 1,080      
Buildings and Improvements 2,300      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,487      
Land 1,090      
Buildings and Improvements 5,777      
Total 6,867      
Accumulated Depreciation 12/31/2016 $ 2,456      
200 Northpointe Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orion Township, MI      
Land $ 723      
Buildings and Improvements 2,063      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (95)      
Land 734      
Buildings and Improvements 1,957      
Total 2,691      
Accumulated Depreciation 12/31/2016 $ 962      
3351 Rauch St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 272      
Buildings and Improvements 1,541      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 576      
Land 278      
Buildings and Improvements 2,111      
Total 2,389      
Accumulated Depreciation 12/31/2016 $ 882      
3801-3851 Yale St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Encumbrances $ 2,510      
Land 413      
Buildings and Improvements 2,343      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,292      
Land 425      
Buildings and Improvements 3,623      
Total 4,048      
Accumulated Depreciation 12/31/2016 $ 1,353      
3337-3347 Rauch Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 227      
Buildings and Improvements 1,287      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 433      
Land 233      
Buildings and Improvements 1,714      
Total 1,947      
Accumulated Depreciation 12/31/2016 $ 730      
8505 N Loop East [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 439      
Buildings and Improvements 2,489      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 575      
Land 449      
Buildings and Improvements 3,054      
Total 3,503      
Accumulated Depreciation 12/31/2016 $ 1,381      
4749-4799 Eastpark Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 594      
Buildings and Improvements 3,368      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,208      
Land 611      
Buildings and Improvements 4,559      
Total 5,170      
Accumulated Depreciation 12/31/2016 $ 2,062      
4851 Homestead Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Encumbrances $ 2,384      
Land 491      
Buildings and Improvements 2,782      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,485      
Land 504      
Buildings and Improvements 4,254      
Total 4,758      
Accumulated Depreciation 12/31/2016 $ 1,940      
3365-3385 Rauch Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Encumbrances $ 1,477      
Land 284      
Buildings and Improvements 1,611      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 487      
Land 290      
Buildings and Improvements 2,092      
Total 2,382      
Accumulated Depreciation 12/31/2016 $ 884      
5050 Campbell Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 461      
Buildings and Improvements 2,610      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,045      
Land 470      
Buildings and Improvements 3,646      
Total 4,116      
Accumulated Depreciation 12/31/2016 $ 1,551      
4300 Pine Timbers [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Encumbrances $ 2,218      
Land 489      
Buildings and Improvements 2,769      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 690      
Land 499      
Buildings and Improvements 3,449      
Total 3,948      
Accumulated Depreciation 12/31/2016 $ 1,619      
2500-2530 Fairway Park Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 766      
Buildings and Improvements 4,342      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,925      
Land 792      
Buildings and Improvements 6,241      
Total 7,033      
Accumulated Depreciation 12/31/2016 $ 2,640      
6550 Longpointe [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 362      
Buildings and Improvements 2,050      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 994      
Land 370      
Buildings and Improvements 3,036      
Total 3,406      
Accumulated Depreciation 12/31/2016 $ 1,319      
1815 Turning Basin Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 487      
Buildings and Improvements 2,761      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,626      
Land 531      
Buildings and Improvements 4,343      
Total 4,874      
Accumulated Depreciation 12/31/2016 $ 1,722      
1819 Turning Basin Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 231      
Buildings and Improvements 1,308      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 854      
Land 251      
Buildings and Improvements 2,142      
Total 2,393      
Accumulated Depreciation 12/31/2016 $ 881      
1805 Turning Basin Dr [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 564      
Buildings and Improvements 3,197      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,428      
Land 616      
Buildings and Improvements 5,573      
Total 6,189      
Accumulated Depreciation 12/31/2016 $ 2,170      
9835A Genard Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 1,505      
Buildings and Improvements 8,333      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,795      
Land 1,581      
Buildings and Improvements 13,052      
Total 14,633      
Accumulated Depreciation 12/31/2016 $ 4,654      
9835B Genard Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 245      
Buildings and Improvements 1,357      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 644      
Land 256      
Buildings and Improvements 1,990      
Total 2,246      
Accumulated Depreciation 12/31/2016 $ 793      
11505 State Highway 225 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) La Porte, TX      
Land $ 940      
Buildings and Improvements 4,675      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 63      
Land 940      
Buildings and Improvements 4,738      
Total 5,678      
Accumulated Depreciation 12/31/2016 $ 1,640      
1500 E. Main Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) La Porte, TX      
Land $ 201      
Buildings and Improvements 1,328      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (91)      
Land 204      
Buildings and Improvements 1,234      
Total 1,438      
Accumulated Depreciation 12/31/2016 $ 973      
7230-7238 Wynnwood [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 254      
Buildings and Improvements 764      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 200      
Land 259      
Buildings and Improvements 959      
Total 1,218      
Accumulated Depreciation 12/31/2016 $ 468      
7240-7248 Wynnwood [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 271      
Buildings and Improvements 726      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 320      
Land 276      
Buildings and Improvements 1,041      
Total 1,317      
Accumulated Depreciation 12/31/2016 $ 436      
7250-7260 Wynnwood [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 200      
Buildings and Improvements 481      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,471      
Land 203      
Buildings and Improvements 1,949      
Total 2,152      
Accumulated Depreciation 12/31/2016 $ 368      
6400 Long Point [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 188      
Buildings and Improvements 898      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 226      
Land 188      
Buildings and Improvements 1,124      
Total 1,312      
Accumulated Depreciation 12/31/2016 $ 410      
7967 Blankenship [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 307      
Buildings and Improvements 1,166      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 337      
Land 307      
Buildings and Improvements 1,503      
Total 1,810      
Accumulated Depreciation 12/31/2016 $ 535      
8800 City Park Look East [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 3,717      
Buildings and Improvements 19,237      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (784)      
Land 3,717      
Buildings and Improvements 18,453      
Total 22,170      
Accumulated Depreciation 12/31/2016 $ 4,022      
4800 West Greens Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Houston, TX      
Land $ 3,350      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 17,763      
Land 3,312      
Buildings and Improvements 17,801      
Total 21,113      
Accumulated Depreciation 12/31/2016 $ 1,166      
611 East Sam Houston Parkway S [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pasadena, TX      
Land $ 1,970      
Buildings and Improvements 7,431      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 439      
Land 2,011      
Buildings and Improvements 7,829      
Total 9,840      
Accumulated Depreciation 12/31/2016 $ 210      
619 East Sam Houston Parkway S [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pasadena, TX      
Land $ 2,879      
Buildings and Improvements 11,713      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 138      
Land 2,872      
Buildings and Improvements 11,858      
Total 14,730      
Accumulated Depreciation 12/31/2016 $ 349      
2900 N Shadeland Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 2,057      
Buildings and Improvements 13,565      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,118      
Land 2,057      
Buildings and Improvements 19,683      
Total 21,740      
Accumulated Depreciation 12/31/2016 $ 8,743      
1445 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 459      
Buildings and Improvements 2,603      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,350      
Land 476      
Buildings and Improvements 3,936      
Total 4,412      
Accumulated Depreciation 12/31/2016 $ 1,709      
1440 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Encumbrances $ 3,035      
Land 665      
Buildings and Improvements 3,770      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 968      
Land 685      
Buildings and Improvements 4,718      
Total 5,403      
Accumulated Depreciation 12/31/2016 $ 2,306      
1240 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 247      
Buildings and Improvements 1,402      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 360      
Land 258      
Buildings and Improvements 1,751      
Total 2,009      
Accumulated Depreciation 12/31/2016 $ 870      
1345 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 586      
Buildings and Improvements 3,321      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,512      
Land 601      
Buildings and Improvements 4,818      
Total 5,419      
Accumulated Depreciation 12/31/2016 $ 2,258      
1350 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 205      
Buildings and Improvements 1,161      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 222      
Land 212      
Buildings and Improvements 1,376      
Total 1,588      
Accumulated Depreciation 12/31/2016 $ 690      
1341 Sadlier Circle South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 131      
Buildings and Improvements 743      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 229      
Land 136      
Buildings and Improvements 967      
Total 1,103      
Accumulated Depreciation 12/31/2016 $ 470      
1322-1438 Sadlier Circle East [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 145      
Buildings and Improvements 822      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 341      
Land 152      
Buildings and Improvements 1,156      
Total 1,308      
Accumulated Depreciation 12/31/2016 $ 557      
1327-1441 Sadlier Circle West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 218      
Buildings and Improvements 1,234      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 876      
Land 225      
Buildings and Improvements 2,103      
Total 2,328      
Accumulated Depreciation 12/31/2016 $ 852      
1402-1430 Sadlier Circle West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 165      
Buildings and Improvements 934      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 397      
Land 171      
Buildings and Improvements 1,325      
Total 1,496      
Accumulated Depreciation 12/31/2016 $ 623      
1504 Sadlier Circle South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 219      
Buildings and Improvements 1,238      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 58      
Land 115      
Buildings and Improvements 1,400      
Total 1,515      
Accumulated Depreciation 12/31/2016 $ 662      
1365-1367 Sadlier Way Circle East [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 121      
Buildings and Improvements 688      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 208      
Land 91      
Buildings and Improvements 926      
Total 1,017      
Accumulated Depreciation 12/31/2016 $ 476      
1352-1354 Sadlier Circle West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 178      
Buildings and Improvements 1,008      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 236      
Land 166      
Buildings and Improvements 1,256      
Total 1,422      
Accumulated Depreciation 12/31/2016 $ 610      
1335 Sadlier Circle East [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 81      
Buildings and Improvements 460      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 206      
Land 85      
Buildings and Improvements 662      
Total 747      
Accumulated Depreciation 12/31/2016 $ 340      
1425 Sadlier Circle West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 21      
Buildings and Improvements 117      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 57      
Land 23      
Buildings and Improvements 172      
Total 195      
Accumulated Depreciation 12/31/2016 $ 77      
6951 East 30th St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Encumbrances $ 2,510      
Land 256      
Buildings and Improvements 1,449      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 258      
Land 265      
Buildings and Improvements 1,698      
Total 1,963      
Accumulated Depreciation 12/31/2016 $ 847      
6701 East 30th St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 78      
Buildings and Improvements 443      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 91      
Land 82      
Buildings and Improvements 530      
Total 612      
Accumulated Depreciation 12/31/2016 $ 269      
6737 East 30th St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Encumbrances $ 2,029      
Land 385      
Buildings and Improvements 2,181      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 641      
Land 398      
Buildings and Improvements 2,809      
Total 3,207      
Accumulated Depreciation 12/31/2016 $ 1,249      
6555 East 30th St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 484      
Buildings and Improvements 4,760      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,248      
Land 484      
Buildings and Improvements 7,008      
Total 7,492      
Accumulated Depreciation 12/31/2016 $ 3,094      
7901 West 21st St. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 1,048      
Buildings and Improvements 6,027      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 340      
Land 1,048      
Buildings and Improvements 6,367      
Total 7,415      
Accumulated Depreciation 12/31/2016 $ 2,989      
1225 Brookville Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 60      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 420      
Land 68      
Buildings and Improvements 412      
Total 480      
Accumulated Depreciation 12/31/2016 $ 195      
6751 E 30th St [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 728      
Buildings and Improvements 2,837      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 401      
Land 741      
Buildings and Improvements 3,225      
Total 3,966      
Accumulated Depreciation 12/31/2016 $ 1,497      
6575 East 30th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Encumbrances $ 1,337      
Land 118      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,994      
Land 128      
Buildings and Improvements 1,984      
Total 2,112      
Accumulated Depreciation 12/31/2016 $ 875      
6585 East 30th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Encumbrances $ 2,172      
Land 196      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,236      
Land 196      
Buildings and Improvements 3,236      
Total 3,432      
Accumulated Depreciation 12/31/2016 $ 1,454      
1133 Northwest L Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richmond, IN      
Land $ 201      
Buildings and Improvements 1,358      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (128)      
Land 208      
Buildings and Improvements 1,223      
Total 1,431      
Accumulated Depreciation 12/31/2016 $ 788      
14425 Bergen Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Noblesville, IN      
Land $ 647      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,693      
Land 743      
Buildings and Improvements 3,597      
Total 4,340      
Accumulated Depreciation 12/31/2016 $ 917      
6635 E 30th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Indianapolis, IN      
Land $ 466      
Buildings and Improvements 3,093      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 466      
Buildings and Improvements 3,093      
Total 3,559      
Accumulated Depreciation 12/31/2016 $ 16      
4700 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 908      
Buildings and Improvements 1,883      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 21      
Land 912      
Buildings and Improvements 1,900      
Total 2,812      
Accumulated Depreciation 12/31/2016 $ 687      
4710 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 830      
Buildings and Improvements 2,722      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 73      
Land 834      
Buildings and Improvements 2,791      
Total 3,625      
Accumulated Depreciation 12/31/2016 $ 773      
4720 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 937      
Buildings and Improvements 2,455      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 340      
Land 942      
Buildings and Improvements 2,790      
Total 3,732      
Accumulated Depreciation 12/31/2016 $ 929      
4740 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 1,107      
Buildings and Improvements 3,111      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 16      
Land 1,112      
Buildings and Improvements 3,122      
Total 4,234      
Accumulated Depreciation 12/31/2016 $ 869      
4750 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 947      
Buildings and Improvements 3,079      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 353      
Land 951      
Buildings and Improvements 3,428      
Total 4,379      
Accumulated Depreciation 12/31/2016 $ 900      
4800 NW 15th Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ft. Lauderdale, FL      
Land $ 1,092      
Buildings and Improvements 3,308      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 179      
Land 1,097      
Buildings and Improvements 3,482      
Total 4,579      
Accumulated Depreciation 12/31/2016 $ 1,006      
6891 NW 74th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Medley, FL      
Land $ 857      
Buildings and Improvements 3,428      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,288      
Land 864      
Buildings and Improvements 7,709      
Total 8,573      
Accumulated Depreciation 12/31/2016 $ 2,427      
12601 &12605 NW 115th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Medley, FL      
Land $ 2,316      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 434      
Land 762      
Buildings and Improvements 1,988      
Total 2,750      
Accumulated Depreciation 12/31/2016 $ 369      
1351 NW 78th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Doral, FL      
Land $ 3,111      
Buildings and Improvements 4,634      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13      
Land 3,111      
Buildings and Improvements 4,647      
Total 7,758      
Accumulated Depreciation 12/31/2016 $ 51      
5355 South Westridge Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) New Berlin, WI      
Encumbrances $ 4,328      
Land 1,630      
Buildings and Improvements 7,058      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (105)      
Land 1,646      
Buildings and Improvements 6,937      
Total 8,583      
Accumulated Depreciation 12/31/2016 $ 1,967      
17005 W. Ryerson Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) New Berlin, WI      
Encumbrances $ 2,454      
Land 403      
Buildings and Improvements 3,647      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 317      
Land 405      
Buildings and Improvements 3,962      
Total 4,367      
Accumulated Depreciation 12/31/2016 $ 1,958      
W140 N9059 Lilly Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Menomonee Falls, WI      
Land $ 343      
Buildings and Improvements 1,153      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 106      
Land 366      
Buildings and Improvements 1,236      
Total 1,602      
Accumulated Depreciation 12/31/2016 $ 507      
1500 Peebles Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Richland Center, WI      
Land $ 1,577      
Buildings and Improvements 1,018      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (441)      
Land 1,528      
Buildings and Improvements 626      
Total 2,154      
Accumulated Depreciation 12/31/2016 $ 563      
16600 West Glendale Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) New Berlin, WI      
Encumbrances $ 1,782      
Land 704      
Buildings and Improvements 1,923      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 932      
Land 715      
Buildings and Improvements 2,844      
Total 3,559      
Accumulated Depreciation 12/31/2016 $ 1,911      
N58W15380 Shawn Circle [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Menomonee Falls, WI      
Land $ 1,188      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 16,931      
Land 1,204      
Buildings and Improvements 16,915      
Total 18,119      
Accumulated Depreciation 12/31/2016 $ 4,098      
6201 West 111th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Bloomington, MN      
Encumbrances $ 2,537      
Land 1,358      
Buildings and Improvements 8,622      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,466      
Land 1,519      
Buildings and Improvements 21,927      
Total 23,446      
Accumulated Depreciation 12/31/2016 $ 12,616      
7101 Winnetka Avenue South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Brooklyn Park, MN      
Land $ 2,195      
Buildings and Improvements 6,084      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,322      
Land 2,228      
Buildings and Improvements 10,373      
Total 12,601      
Accumulated Depreciation 12/31/2016 $ 7,693      
9901 West 74th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eden Prairie, MN      
Land $ 621      
Buildings and Improvements 3,289      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,603      
Land 639      
Buildings and Improvements 6,874      
Total 7,513      
Accumulated Depreciation 12/31/2016 $ 5,736      
1030 Lone Oak Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eagan, MN      
Encumbrances $ 1,966      
Land 456      
Buildings and Improvements 2,703      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 767      
Land 456      
Buildings and Improvements 3,470      
Total 3,926      
Accumulated Depreciation 12/31/2016 $ 1,797      
1060 Lone Oak Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eagan, MN      
Encumbrances $ 2,490      
Land 624      
Buildings and Improvements 3,700      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 645      
Land 624      
Buildings and Improvements 4,345      
Total 4,969      
Accumulated Depreciation 12/31/2016 $ 2,292      
5400 Nathan Lane [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Plymouth, MN      
Land $ 749      
Buildings and Improvements 4,461      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 835      
Land 757      
Buildings and Improvements 5,288      
Total 6,045      
Accumulated Depreciation 12/31/2016 $ 2,822      
6655 Wedgewood Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Maple Grove, MN      
Land $ 1,466      
Buildings and Improvements 8,342      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,615      
Land 1,466      
Buildings and Improvements 13,957      
Total 15,423      
Accumulated Depreciation 12/31/2016 $ 6,432      
10120 W 76th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eden Prairie, MN      
Land $ 315      
Buildings and Improvements 1,804      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 917      
Land 315      
Buildings and Improvements 2,721      
Total 3,036      
Accumulated Depreciation 12/31/2016 $ 1,375      
12155 Nicollet Ave. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Burnsville, MN      
Land $ 286      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,957      
Land 288      
Buildings and Improvements 1,955      
Total 2,243      
Accumulated Depreciation 12/31/2016 $ 924      
4100 Peavey Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Chaska, MN      
Land $ 277      
Buildings and Improvements 2,261      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 832      
Land 277      
Buildings and Improvements 3,093      
Total 3,370      
Accumulated Depreciation 12/31/2016 $ 1,477      
7100-7198 Shady Oak Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eden Prairie, MN      
Land $ 715      
Buildings and Improvements 4,054      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,177      
Land 736      
Buildings and Improvements 6,210      
Total 6,946      
Accumulated Depreciation 12/31/2016 $ 2,799      
5240-5300 Valley Industrial Blvd S [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Encumbrances $ 2,057      
Land 362      
Buildings and Improvements 2,049      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,249      
Land 371      
Buildings and Improvements 3,289      
Total 3,660      
Accumulated Depreciation 12/31/2016 $ 1,459      
5775 12th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Encumbrances $ 3,084      
Land 590      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,900      
Land 590      
Buildings and Improvements 4,900      
Total 5,490      
Accumulated Depreciation 12/31/2016 $ 1,736      
1157 Valley Park Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Encumbrances $ 4,055      
Land 760      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7,281      
Land 888      
Buildings and Improvements 7,153      
Total 8,041      
Accumulated Depreciation 12/31/2016 $ 2,797      
9600 West 76th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eden Prairie, MN      
Encumbrances $ 2,061      
Land 1,000      
Buildings and Improvements 2,450      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 181      
Land 1,034      
Buildings and Improvements 2,597      
Total 3,631      
Accumulated Depreciation 12/31/2016 $ 776      
9700 West 76th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eden Prairie, MN      
Encumbrances $ 2,768      
Land 1,000      
Buildings and Improvements 2,709      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 553      
Land 1,038      
Buildings and Improvements 3,224      
Total 4,262      
Accumulated Depreciation 12/31/2016 $ 1,029      
7600 69th Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Greenfield, MN      
Land $ 1,500      
Buildings and Improvements 8,328      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (468)      
Land 1,510      
Buildings and Improvements 7,850      
Total 9,360      
Accumulated Depreciation 12/31/2016 $ 1,976      
5017 Boone Avenue North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) New Hope, MN      
Land $ 1,000      
Buildings and Improvements 1,599      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 547      
Land 1,009      
Buildings and Improvements 2,137      
Total 3,146      
Accumulated Depreciation 12/31/2016 $ 1,058      
2300 West Highway 13 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Burnsville, MN      
Land $ 2,517      
Buildings and Improvements 6,069      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (1,651)      
Land 1,296      
Buildings and Improvements 5,639      
Total 6,935      
Accumulated Depreciation 12/31/2016 $ 4,175      
1087 Park Place [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Encumbrances $ 3,281      
Land 1,195      
Buildings and Improvements 4,891      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (246)      
Land 1,198      
Buildings and Improvements 4,642      
Total 5,840      
Accumulated Depreciation 12/31/2016 $ 1,365      
5391 12th Avenue SE [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Land $ 1,392      
Buildings and Improvements 8,149      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (259)      
Land 1,395      
Buildings and Improvements 7,887      
Total 9,282      
Accumulated Depreciation 12/31/2016 $ 2,278      
4701 Valley Industrial Blvd S [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Shakopee, MN      
Encumbrances $ 4,652      
Land 1,296      
Buildings and Improvements 7,157      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (172)      
Land 1,299      
Buildings and Improvements 6,982      
Total 8,281      
Accumulated Depreciation 12/31/2016 $ 3,068      
6455 City West Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eden Prairie, MN      
Land $ 659      
Buildings and Improvements 3,189      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,068      
Land 665      
Buildings and Improvements 4,251      
Total 4,916      
Accumulated Depreciation 12/31/2016 $ 1,524      
7035 Winnetka Avene North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Brooklyn Park, MN      
Encumbrances $ 4,329      
Land 1,275      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7,309      
Land 1,343      
Buildings and Improvements 7,241      
Total 8,584      
Accumulated Depreciation 12/31/2016 $ 1,729      
139 Eva Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Paul, MN      
Land $ 2,132      
Buildings and Improvements 3,105      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (286)      
Land 2,175      
Buildings and Improvements 2,776      
Total 4,951      
Accumulated Depreciation 12/31/2016 $ 737      
21900 Dodd Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Lakeville, MN      
Encumbrances $ 9,255      
Land 2,289      
Buildings and Improvements 7,952      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 2,289      
Buildings and Improvements 7,952      
Total 10,241      
Accumulated Depreciation 12/31/2016 $ 2,377      
375 Rivertown Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Woodbury, MN      
Encumbrances $ 7,343      
Land 2,635      
Buildings and Improvements 8,157      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,161      
Land 2,635      
Buildings and Improvements 9,318      
Total 11,953      
Accumulated Depreciation 12/31/2016 $ 1,245      
935 Aldrin Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eagan, MN      
Encumbrances $ 5,403      
Land 2,096      
Buildings and Improvements 7,884      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 134      
Land 2,096      
Buildings and Improvements 8,018      
Total 10,114      
Accumulated Depreciation 12/31/2016 $ 793      
7050 Winnetka Avenue North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Brooklyn Park, MN      
Encumbrances $ 4,580      
Land 1,623      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7,520      
Land 1,634      
Buildings and Improvements 7,509      
Total 9,143      
Accumulated Depreciation 12/31/2016 $ 390      
7051 West Broadway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Brooklyn Park, MN      
Encumbrances $ 3,558      
Land 1,275      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,828      
Land 1,279      
Buildings and Improvements 5,824      
Total 7,103      
Accumulated Depreciation 12/31/2016 $ 301      
1931 Air Lane Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Nashville, TN      
Encumbrances $ 1,801      
Land 489      
Buildings and Improvements 2,785      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 322      
Land 493      
Buildings and Improvements 3,103      
Total 3,596      
Accumulated Depreciation 12/31/2016 $ 1,457      
4640 Cummings Park [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Nashville, TN      
Land $ 360      
Buildings and Improvements 2,040      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 583      
Land 365      
Buildings and Improvements 2,618      
Total 2,983      
Accumulated Depreciation 12/31/2016 $ 1,038      
1740 River Hills Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Nashville, TN      
Encumbrances $ 2,726      
Land 848      
Buildings and Improvements 4,383      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 685      
Land 888      
Buildings and Improvements 5,028      
Total 5,916      
Accumulated Depreciation 12/31/2016 $ 2,386      
211 Ellery Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Nashville, TN      
Encumbrances $ 1,948      
Land 606      
Buildings and Improvements 3,192      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 90      
Land 616      
Buildings and Improvements 3,272      
Total 3,888      
Accumulated Depreciation 12/31/2016 $ 1,129      
130 Maddox Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mount Juliet, TN      
Encumbrances $ 16,236      
Land 1,778      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 23,882      
Land 1,778      
Buildings and Improvements 23,882      
Total 25,660      
Accumulated Depreciation 12/31/2016 $ 4,693      
14 World's Fair Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Franklin, NJ      
Land $ 483      
Buildings and Improvements 2,735      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 752      
Land 503      
Buildings and Improvements 3,467      
Total 3,970      
Accumulated Depreciation 12/31/2016 $ 1,638      
12 World's Fair Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Franklin, NJ      
Land $ 572      
Buildings and Improvements 3,240      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,110      
Land 593      
Buildings and Improvements 4,329      
Total 4,922      
Accumulated Depreciation 12/31/2016 $ 2,134      
22 World's Fair Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Franklin, NJ      
Land $ 364      
Buildings and Improvements 2,064      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 545      
Land 375      
Buildings and Improvements 2,598      
Total 2,973      
Accumulated Depreciation 12/31/2016 $ 1,125      
26 World's Fair Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Franklin, NJ      
Land $ 361      
Buildings and Improvements 2,048      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 665      
Land 377      
Buildings and Improvements 2,697      
Total 3,074      
Accumulated Depreciation 12/31/2016 $ 1,161      
24 World's Fair Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Franklin, NJ      
Land $ 347      
Buildings and Improvements 1,968      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 586      
Land 362      
Buildings and Improvements 2,539      
Total 2,901      
Accumulated Depreciation 12/31/2016 $ 1,147      
2060 Springdale Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Cherry Hill, NJ      
Land $ 258      
Buildings and Improvements 1,436      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 602      
Land 258      
Buildings and Improvements 2,038      
Total 2,296      
Accumulated Depreciation 12/31/2016 $ 886      
20 World's Fair Drive Lot 13 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Somerset, NJ      
Land $ 9      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,559      
Land 691      
Buildings and Improvements 1,877      
Total 2,568      
Accumulated Depreciation 12/31/2016 $ 734      
45 Route 46 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 969      
Buildings and Improvements 5,491      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,005      
Land 978      
Buildings and Improvements 6,487      
Total 7,465      
Accumulated Depreciation 12/31/2016 $ 2,623      
43 Route 46 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 474      
Buildings and Improvements 2,686      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 432      
Land 479      
Buildings and Improvements 3,113      
Total 3,592      
Accumulated Depreciation 12/31/2016 $ 1,226      
39 Route 46 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 260      
Buildings and Improvements 1,471      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 293      
Land 262      
Buildings and Improvements 1,762      
Total 2,024      
Accumulated Depreciation 12/31/2016 $ 700      
26 Chapin Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 956      
Buildings and Improvements 5,415      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 653      
Land 965      
Buildings and Improvements 6,059      
Total 7,024      
Accumulated Depreciation 12/31/2016 $ 2,531      
30 Chapin Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 960      
Buildings and Improvements 5,440      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 477      
Land 970      
Buildings and Improvements 5,907      
Total 6,877      
Accumulated Depreciation 12/31/2016 $ 2,385      
20 Hook Mountain Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 1,507      
Buildings and Improvements 8,542      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,214      
Land 1,534      
Buildings and Improvements 11,729      
Total 13,263      
Accumulated Depreciation 12/31/2016 $ 5,524      
30 Hook Mountain Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 389      
Buildings and Improvements 2,206      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 526      
Land 396      
Buildings and Improvements 2,725      
Total 3,121      
Accumulated Depreciation 12/31/2016 $ 1,152      
16 Chapin Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 885      
Buildings and Improvements 5,015      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 623      
Land 901      
Buildings and Improvements 5,622      
Total 6,523      
Accumulated Depreciation 12/31/2016 $ 2,175      
20 Chapin Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pine Brook, NJ      
Land $ 1,134      
Buildings and Improvements 6,426      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 606      
Land 1,154      
Buildings and Improvements 7,012      
Total 8,166      
Accumulated Depreciation 12/31/2016 $ 2,778      
2500 Main Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Sayreville, NJ      
Land $ 944      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,576      
Land 944      
Buildings and Improvements 4,576      
Total 5,520      
Accumulated Depreciation 12/31/2016 $ 1,597      
2400 Main Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Sayreville, NJ      
Land $ 996      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,539      
Land 996      
Buildings and Improvements 5,539      
Total 6,535      
Accumulated Depreciation 12/31/2016 $ 1,789      
7851 Airport Highway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pennsauken, NJ      
Land $ 160      
Buildings and Improvements 508      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 328      
Land 162      
Buildings and Improvements 834      
Total 996      
Accumulated Depreciation 12/31/2016 $ 369      
103 Central Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Mt. Laurel, NJ      
Land $ 610      
Buildings and Improvements 1,847      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,617      
Land 619      
Buildings and Improvements 3,455      
Total 4,074      
Accumulated Depreciation 12/31/2016 $ 1,444      
309-319 Pierce Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Somerset, NJ      
Encumbrances $ 2,868      
Land 1,300      
Buildings and Improvements 4,628      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 296      
Land 1,309      
Buildings and Improvements 4,915      
Total 6,224      
Accumulated Depreciation 12/31/2016 $ 1,656      
7890 Airport Hwy/7015 Central [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pennsauken, NJ      
Land $ 300      
Buildings and Improvements 989      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 495      
Land 425      
Buildings and Improvements 1,359      
Total 1,784      
Accumulated Depreciation 12/31/2016 $ 1,013      
400 Cedar Lane [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Florence Township, NJ      
Land $ 9,730      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 21,394      
Land 9,730      
Buildings and Improvements 21,394      
Total 31,124      
Accumulated Depreciation 12/31/2016 $ 0      
6301 Hazeltine National Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orlando, FL      
Land $ 909      
Buildings and Improvements 4,613      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 113      
Land 920      
Buildings and Improvements 4,715      
Total 5,635      
Accumulated Depreciation 12/31/2016 $ 1,432      
8751 Skinner Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orlando, FL      
Encumbrances $ 4,784      
Land 1,691      
Buildings and Improvements 7,249      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1      
Land 1,692      
Buildings and Improvements 7,249      
Total 8,941      
Accumulated Depreciation 12/31/2016 $ 242      
4473 Shader Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Orlando, FL      
Land $ 2,094      
Buildings and Improvements 10,444      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 49      
Land 2,094      
Buildings and Improvements 10,493      
Total 12,587      
Accumulated Depreciation 12/31/2016 $ 250      
1045 South Edward Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tempe, AZ      
Land $ 390      
Buildings and Improvements 2,160      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 363      
Land 396      
Buildings and Improvements 2,517      
Total 2,913      
Accumulated Depreciation 12/31/2016 $ 1,061      
50 South 56th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Chandler, AZ      
Encumbrances $ 2,906      
Land 1,206      
Buildings and Improvements 3,218      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,379      
Land 1,252      
Buildings and Improvements 4,551      
Total 5,803      
Accumulated Depreciation 12/31/2016 $ 1,667      
4701 W. Jefferson [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Phoenix, AZ      
Encumbrances $ 2,390      
Land 926      
Buildings and Improvements 2,195      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 243      
Land 929      
Buildings and Improvements 2,435      
Total 3,364      
Accumulated Depreciation 12/31/2016 $ 1,492      
7102 W. Roosevelt [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Phoenix, AZ      
Encumbrances $ 4,779      
Land 1,613      
Buildings and Improvements 6,451      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 444      
Land 1,620      
Buildings and Improvements 6,888      
Total 8,508      
Accumulated Depreciation 12/31/2016 $ 2,770      
4137 West Adams Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Phoenix, AZ      
Encumbrances $ 1,949      
Land 990      
Buildings and Improvements 2,661      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 239      
Land 1,038      
Buildings and Improvements 2,852      
Total 3,890      
Accumulated Depreciation 12/31/2016 $ 1,092      
245 W. Lodge [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tempe, AZ      
Land $ 898      
Buildings and Improvements 3,066      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (2,252)      
Land 362      
Buildings and Improvements 1,350      
Total 1,712      
Accumulated Depreciation 12/31/2016 $ 465      
1590 E Riverview Dr. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Phoenix, AZ      
Encumbrances $ 4,632      
Land 1,293      
Buildings and Improvements 5,950      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 77      
Land 1,292      
Buildings and Improvements 6,028      
Total 7,320      
Accumulated Depreciation 12/31/2016 $ 1,474      
14131 N. Rio Vista Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Peoria, AZ      
Land $ 2,563      
Buildings and Improvements 9,388      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 165      
Land 2,563      
Buildings and Improvements 9,553      
Total 12,116      
Accumulated Depreciation 12/31/2016 $ 2,465      
8716 W. Ludlow Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Peoria, AZ      
Land $ 2,709      
Buildings and Improvements 10,970      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 770      
Land 2,709      
Buildings and Improvements 11,740      
Total 14,449      
Accumulated Depreciation 12/31/2016 $ 3,020      
3815 W. Washington St. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Phoenix, AZ      
Encumbrances $ 3,294      
Land 1,675      
Buildings and Improvements 4,514      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 149      
Land 1,719      
Buildings and Improvements 4,619      
Total 6,338      
Accumulated Depreciation 12/31/2016 $ 1,251      
9180 W. Buckeye Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tolleson, AZ      
Encumbrances $ 6,907      
Land 1,904      
Buildings and Improvements 6,805      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,428      
Land 1,923      
Buildings and Improvements 9,214      
Total 11,137      
Accumulated Depreciation 12/31/2016 $ 2,197      
8644 West Ludlow Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Peoria, AZ      
Land $ 1,726      
Buildings and Improvements 7,216      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 1,726      
Buildings and Improvements 7,216      
Total 8,942      
Accumulated Depreciation 12/31/2016 $ 557      
8606 West Ludlow Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Peoria, AZ      
Land $ 956      
Buildings and Improvements 2,668      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 123      
Land 956      
Buildings and Improvements 2,791      
Total 3,747      
Accumulated Depreciation 12/31/2016 $ 221      
8679 West Ludlow Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Peoria, AZ      
Land $ 672      
Buildings and Improvements 2,791      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 672      
Buildings and Improvements 2,791      
Total 3,463      
Accumulated Depreciation 12/31/2016 $ 220      
94th Avenue and Buckeye Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tolleson, AZ      
Land $ 4,315      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 15,698      
Land 4,315      
Buildings and Improvements 15,698      
Total 20,013      
Accumulated Depreciation 12/31/2016 $ 420      
1270 West 2320 South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 138      
Buildings and Improvements 784      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 193      
Land 143      
Buildings and Improvements 972      
Total 1,115      
Accumulated Depreciation 12/31/2016 $ 424      
1275 West 2240 South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 395      
Buildings and Improvements 2,241      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 352      
Land 408      
Buildings and Improvements 2,580      
Total 2,988      
Accumulated Depreciation 12/31/2016 $ 1,172      
1288 West 2240 South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 119      
Buildings and Improvements 672      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 138      
Land 123      
Buildings and Improvements 806      
Total 929      
Accumulated Depreciation 12/31/2016 $ 373      
2235 South 1300 West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 198      
Buildings and Improvements 1,120      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 249      
Land 204      
Buildings and Improvements 1,363      
Total 1,567      
Accumulated Depreciation 12/31/2016 $ 589      
1293 West 2200 South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 158      
Buildings and Improvements 896      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 224      
Land 163      
Buildings and Improvements 1,115      
Total 1,278      
Accumulated Depreciation 12/31/2016 $ 491      
1279 West 2200 South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 198      
Buildings and Improvements 1,120      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 172      
Land 204      
Buildings and Improvements 1,286      
Total 1,490      
Accumulated Depreciation 12/31/2016 $ 601      
1272 West 2240 South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 336      
Buildings and Improvements 1,905      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 428      
Land 347      
Buildings and Improvements 2,322      
Total 2,669      
Accumulated Depreciation 12/31/2016 $ 1,006      
1149 West 2240 South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 217      
Buildings and Improvements 1,232      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 284      
Land 225      
Buildings and Improvements 1,508      
Total 1,733      
Accumulated Depreciation 12/31/2016 $ 716      
1142 West 2320 South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 217      
Buildings and Improvements 1,232      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 372      
Land 225      
Buildings and Improvements 1,596      
Total 1,821      
Accumulated Depreciation 12/31/2016 $ 695      
2323 South 900 W [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Salt Lake City, UT      
Land $ 886      
Buildings and Improvements 2,995      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (84)      
Land 898      
Buildings and Improvements 2,899      
Total 3,797      
Accumulated Depreciation 12/31/2016 $ 1,665      
1815-1957 South 4650 West [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Salt Lake City, UT      
Encumbrances $ 6,460      
Land 1,707      
Buildings and Improvements 10,873      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 46      
Land 1,713      
Buildings and Improvements 10,913      
Total 12,626      
Accumulated Depreciation 12/31/2016 $ 3,268      
2100 Alexander Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 376      
Buildings and Improvements 1,670      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 390      
Land 376      
Buildings and Improvements 2,060      
Total 2,436      
Accumulated Depreciation 12/31/2016 $ 732      
2064 Alexander Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) West Valley, UT      
Land $ 864      
Buildings and Improvements 2,771      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (33)      
Land 869      
Buildings and Improvements 2,733      
Total 3,602      
Accumulated Depreciation 12/31/2016 $ 899      
1901 Raymond Ave SW [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Renton, WA      
Encumbrances $ 520      
Land 4,458      
Buildings and Improvements 2,659      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 480      
Land 4,594      
Buildings and Improvements 3,003      
Total 7,597      
Accumulated Depreciation 12/31/2016 $ 815      
19014 64th Avenue South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kent, WA      
Encumbrances $ 2,968      
Land 1,990      
Buildings and Improvements 3,979      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 471      
Land 2,042      
Buildings and Improvements 4,398      
Total 6,440      
Accumulated Depreciation 12/31/2016 $ 1,484      
18640 68th Avenue South [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kent, WA      
Encumbrances $ 208      
Land 1,218      
Buildings and Improvements 1,950      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 310      
Land 1,258      
Buildings and Improvements 2,220      
Total 3,478      
Accumulated Depreciation 12/31/2016 $ 772      
1944 Vista Bella Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Encumbrances $ 3,010      
Land 1,746      
Buildings and Improvements 3,148      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 465      
Land 1,822      
Buildings and Improvements 3,537      
Total 5,359      
Accumulated Depreciation 12/31/2016 $ 1,579      
2000 Vista Bella Way [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Encumbrances $ 1,282      
Land 817      
Buildings and Improvements 1,673      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 292      
Land 853      
Buildings and Improvements 1,929      
Total 2,782      
Accumulated Depreciation 12/31/2016 $ 904      
2835 East Ana Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Encumbrances $ 2,425      
Land 1,682      
Buildings and Improvements 2,750      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 409      
Land 1,772      
Buildings and Improvements 3,069      
Total 4,841      
Accumulated Depreciation 12/31/2016 $ 1,318      
16275 Technology Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) San Diego, CA      
Land $ 2,848      
Buildings and Improvements 8,641      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (40)      
Land 2,859      
Buildings and Improvements 8,590      
Total 11,449      
Accumulated Depreciation 12/31/2016 $ 2,724      
665 N. Baldwin Park Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) City of Industry, CA      
Encumbrances $ 4,127      
Land 2,124      
Buildings and Improvements 5,219      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,614      
Land 2,143      
Buildings and Improvements 6,814      
Total 8,957      
Accumulated Depreciation 12/31/2016 $ 3,143      
27801 Avenue Scott [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Santa Clarita, CA      
Encumbrances $ 6,010      
Land 2,890      
Buildings and Improvements 7,020      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 788      
Land 2,902      
Buildings and Improvements 7,796      
Total 10,698      
Accumulated Depreciation 12/31/2016 $ 2,963      
2610 & 2660 Columbia [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Torrance, CA      
Encumbrances $ 4,331      
Land 3,008      
Buildings and Improvements 5,826      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 565      
Land 3,031      
Buildings and Improvements 6,368      
Total 9,399      
Accumulated Depreciation 12/31/2016 $ 2,167      
433 Alaska Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Torrance, CA      
Land $ 681      
Buildings and Improvements 168      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3      
Land 684      
Buildings and Improvements 168      
Total 852      
Accumulated Depreciation 12/31/2016 $ 107      
4020 S. Compton Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Los Angeles, CA      
Land $ 3,800      
Buildings and Improvements 7,330      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (473)      
Land 3,825      
Buildings and Improvements 6,832      
Total 10,657      
Accumulated Depreciation 12/31/2016 $ 1,840      
6305 El Camino Real [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Land $ 1,590      
Buildings and Improvements 6,360      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 7,730      
Land 1,590      
Buildings and Improvements 14,090      
Total 15,680      
Accumulated Depreciation 12/31/2016 $ 4,329      
2325 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 1,890      
Land 1,441      
Buildings and Improvements 1,239      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 650      
Land 1,446      
Buildings and Improvements 1,884      
Total 3,330      
Accumulated Depreciation 12/31/2016 $ 614      
2335 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 965      
Land 817      
Buildings and Improvements 762      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 121      
Land 821      
Buildings and Improvements 879      
Total 1,700      
Accumulated Depreciation 12/31/2016 $ 356      
2345 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 631      
Land 562      
Buildings and Improvements 456      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 94      
Land 565      
Buildings and Improvements 547      
Total 1,112      
Accumulated Depreciation 12/31/2016 $ 185      
2355 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 616      
Land 481      
Buildings and Improvements 365      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 239      
Land 483      
Buildings and Improvements 602      
Total 1,085      
Accumulated Depreciation 12/31/2016 $ 273      
2365 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 1,171      
Land 1,098      
Buildings and Improvements 630      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 336      
Land 1,102      
Buildings and Improvements 962      
Total 2,064      
Accumulated Depreciation 12/31/2016 $ 450      
2375 Camino Vida Roble [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Encumbrances $ 1,283      
Land 1,210      
Buildings and Improvements 874      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 113      
Land 1,214      
Buildings and Improvements 983      
Total 2,197      
Accumulated Depreciation 12/31/2016 $ 402      
6451 El Camino Real [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Carlsbad, CA      
Land $ 2,885      
Buildings and Improvements 1,931      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 766      
Land 2,895      
Buildings and Improvements 2,687      
Total 5,582      
Accumulated Depreciation 12/31/2016 $ 913      
13100 Gregg Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Poway, CA      
Encumbrances $ 2,977      
Land 1,040      
Buildings and Improvements 4,160      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 744      
Land 1,073      
Buildings and Improvements 4,871      
Total 5,944      
Accumulated Depreciation 12/31/2016 $ 1,840      
21730-21748 Marilla St. [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Chatsworth, CA      
Encumbrances $ 2,738      
Land 2,585      
Buildings and Improvements 3,210      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 146      
Land 2,608      
Buildings and Improvements 3,333      
Total 5,941      
Accumulated Depreciation 12/31/2016 $ 1,210      
8015 Paramount [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Pico Rivera, CA      
Land $ 3,616      
Buildings and Improvements 3,902      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 61      
Land 3,657      
Buildings and Improvements 3,922      
Total 7,579      
Accumulated Depreciation 12/31/2016 $ 1,755      
3365 E. Slauson [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Vernon, CA      
Land $ 2,367      
Buildings and Improvements 3,243      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 40      
Land 2,396      
Buildings and Improvements 3,254      
Total 5,650      
Accumulated Depreciation 12/31/2016 $ 1,534      
3015 East Ana [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Land $ 19,678      
Buildings and Improvements 9,321      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,305      
Land 20,144      
Buildings and Improvements 15,160      
Total 35,304      
Accumulated Depreciation 12/31/2016 $ 4,504      
19067 Reyes Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Land $ 9,281      
Buildings and Improvements 3,920      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 3,542      
Land 9,381      
Buildings and Improvements 7,362      
Total 16,743      
Accumulated Depreciation 12/31/2016 $ 34      
24870 Nandina Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 13,543      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 21,146      
Land 6,482      
Buildings and Improvements 28,207      
Total 34,689      
Accumulated Depreciation 12/31/2016 $ 3,196      
1250 Rancho Conejo Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Land $ 1,435      
Buildings and Improvements 779      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 46      
Land 1,441      
Buildings and Improvements 819      
Total 2,260      
Accumulated Depreciation 12/31/2016 $ 289      
1260 Rancho Conejo Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Land $ 1,353      
Buildings and Improvements 722      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (724)      
Land 675      
Buildings and Improvements 676      
Total 1,351      
Accumulated Depreciation 12/31/2016 $ 199      
1270 Rancho Conejo Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Land $ 1,224      
Buildings and Improvements 716      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (107)      
Land 1,229      
Buildings and Improvements 604      
Total 1,833      
Accumulated Depreciation 12/31/2016 $ 253      
1280 Rancho Conejo Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Encumbrances $ 2,396      
Land 2,043      
Buildings and Improvements 3,408      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (252)      
Land 2,051      
Buildings and Improvements 3,148      
Total 5,199      
Accumulated Depreciation 12/31/2016 $ 723      
1290 Rancho Conejo Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Encumbrances $ 2,015      
Land 1,754      
Buildings and Improvements 2,949      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (332)      
Land 1,761      
Buildings and Improvements 2,610      
Total 4,371      
Accumulated Depreciation 12/31/2016 $ 610      
100 West Sinclair Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Perris, CA      
Land $ 4,894      
Buildings and Improvements 3,481      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (5,233)      
Land 1,819      
Buildings and Improvements 1,323      
Total 3,142      
Accumulated Depreciation 12/31/2016 $ 630      
14050 Day Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Encumbrances $ 3,395      
Land 2,538      
Buildings and Improvements 2,538      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 291      
Land 2,565      
Buildings and Improvements 2,801      
Total 5,366      
Accumulated Depreciation 12/31/2016 $ 1,002      
12925 Marlay Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Fontana, CA      
Encumbrances $ 8,984      
Land 6,072      
Buildings and Improvements 7,891      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 235      
Land 6,090      
Buildings and Improvements 8,108      
Total 14,198      
Accumulated Depreciation 12/31/2016 $ 3,482      
18201-18291 Santa Fe [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Encumbrances $ 9,949      
Land 6,720      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 9,004      
Land 6,897      
Buildings and Improvements 8,827      
Total 15,724      
Accumulated Depreciation 12/31/2016 $ 2,148      
1011 Rancho Conejo [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Thousand Oaks, CA      
Encumbrances $ 4,638      
Land 7,717      
Buildings and Improvements 2,518      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (168)      
Land 7,752      
Buildings and Improvements 2,314      
Total 10,066      
Accumulated Depreciation 12/31/2016 $ 866      
20700 Denker Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Torrance, CA      
Encumbrances $ 5,445      
Land 5,767      
Buildings and Improvements 2,538      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,289      
Land 5,964      
Buildings and Improvements 3,631      
Total 9,595      
Accumulated Depreciation 12/31/2016 $ 1,902      
18408 Laurel Park Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Land $ 2,850      
Buildings and Improvements 2,850      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 659      
Land 2,874      
Buildings and Improvements 3,485      
Total 6,359      
Accumulated Depreciation 12/31/2016 $ 1,115      
19021 S. Reyes Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Rancho Dominguez, CA      
Land $ 8,183      
Buildings and Improvements 7,501      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 233      
Land 8,545      
Buildings and Improvements 7,372      
Total 15,917      
Accumulated Depreciation 12/31/2016 $ 1,399      
6185 Kimball Ave [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Chino, CA      
Land $ 6,385      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 12,343      
Land 6,382      
Buildings and Improvements 12,346      
Total 18,728      
Accumulated Depreciation 12/31/2016 $ 1,792      
5555 Bandini Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Bell, CA      
Land $ 32,536      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 21,620      
Land 32,540      
Buildings and Improvements 21,616      
Total 54,156      
Accumulated Depreciation 12/31/2016 $ 1,764      
16875 Heacock Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 0      
Buildings and Improvements 6,831      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 72      
Land 0      
Buildings and Improvements 6,903      
Total 6,903      
Accumulated Depreciation 12/31/2016 $ 1,006      
4710 Guasti Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Ontario, CA      
Encumbrances $ 5,662      
Land 2,846      
Buildings and Improvements 6,564      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 212      
Land 2,846      
Buildings and Improvements 6,776      
Total 9,622      
Accumulated Depreciation 12/31/2016 $ 494      
17100 Perris Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 6,388      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 25,843      
Land 6,395      
Buildings and Improvements 25,836      
Total 32,231      
Accumulated Depreciation 12/31/2016 $ 1,697      
13414 South Figueroa [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Los Angeles, CA      
Encumbrances $ 4,148      
Land 1,701      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,580      
Land 1,887      
Buildings and Improvements 6,394      
Total 8,281      
Accumulated Depreciation 12/31/2016 $ 408      
3841 Ocean Ranch Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Oceanside, CA      
Land $ 4,400      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 8,034      
Land 4,400      
Buildings and Improvements 8,034      
Total 12,434      
Accumulated Depreciation 12/31/2016 $ 349      
3831 Ocean Ranch Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Oceanside, CA      
Land $ 2,693      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,584      
Land 2,694      
Buildings and Improvements 4,583      
Total 7,277      
Accumulated Depreciation 12/31/2016 $ 193      
3821 Ocean Ranch Boulevard [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Oceanside, CA      
Land $ 2,792      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 4,470      
Land 2,792      
Buildings and Improvements 4,470      
Total 7,262      
Accumulated Depreciation 12/31/2016 $ 147      
One Four Five W. 134th Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Los Angeles, CA      
Land $ 2,901      
Buildings and Improvements 2,285      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 173      
Land 2,901      
Buildings and Improvements 2,458      
Total 5,359      
Accumulated Depreciation 12/31/2016 $ 162      
6150 Sycamore Canyon Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Riverside, CA      
Land $ 3,182      
Buildings and Improvements 10,643      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 3,182      
Buildings and Improvements 10,643      
Total 13,825      
Accumulated Depreciation 12/31/2016 $ 556      
17825 Indian Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 5,034      
Buildings and Improvements 22,095      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 0      
Land 5,034      
Buildings and Improvements 22,095      
Total 27,129      
Accumulated Depreciation 12/31/2016 $ 1,029      
24901 San Michele Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Moreno Valley, CA      
Land $ 1,274      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 11,482      
Land 1,274      
Buildings and Improvements 11,482      
Total 12,756      
Accumulated Depreciation 12/31/2016 $ 184      
1445 Engineer Street [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Vista, CA      
Land $ 6,816      
Buildings and Improvements 4,417      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1      
Land 6,816      
Buildings and Improvements 4,418      
Total 11,234      
Accumulated Depreciation 12/31/2016 $ 129      
1067-1083 Warson-Bldg A [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Louis, MO      
Encumbrances $ 1,429      
Land 246      
Buildings and Improvements 1,359      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 939      
Land 251      
Buildings and Improvements 2,293      
Total 2,544      
Accumulated Depreciation 12/31/2016 $ 710      
1093-1107 Warson-Bldg B [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Louis, MO      
Encumbrances $ 2,461      
Land 380      
Buildings and Improvements 2,103      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,898      
Land 388      
Buildings and Improvements 3,993      
Total 4,381      
Accumulated Depreciation 12/31/2016 $ 1,304      
1113-1129 Warson-Bldg C [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Louis, MO      
Encumbrances $ 1,661      
Land 303      
Buildings and Improvements 1,680      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 975      
Land 310      
Buildings and Improvements 2,648      
Total 2,958      
Accumulated Depreciation 12/31/2016 $ 862      
1131-1151 Warson-Bldg D [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Louis, MO      
Encumbrances $ 1,990      
Land 353      
Buildings and Improvements 1,952      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,237      
Land 360      
Buildings and Improvements 3,182      
Total 3,542      
Accumulated Depreciation 12/31/2016 $ 954      
6821-6857 Hazelwood Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Berkeley, MO      
Encumbrances $ 4,640      
Land 985      
Buildings and Improvements 6,205      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,069      
Land 985      
Buildings and Improvements 7,274      
Total 8,259      
Accumulated Depreciation 12/31/2016 $ 2,558      
13701 Rider Trail North [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Earth City, MO      
Land $ 800      
Buildings and Improvements 2,099      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 610      
Land 804      
Buildings and Improvements 2,705      
Total 3,509      
Accumulated Depreciation 12/31/2016 $ 1,201      
1908-2000 Innerbelt [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Overland, MO      
Encumbrances $ 6,781      
Land 1,590      
Buildings and Improvements 9,026      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,235      
Land 1,591      
Buildings and Improvements 10,260      
Total 11,851      
Accumulated Depreciation 12/31/2016 $ 4,432      
21-25 Gateway Commerce Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Edwardsville, IL      
Land $ 1,874      
Buildings and Improvements 31,958      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (38)      
Land 1,902      
Buildings and Improvements 31,892      
Total 33,794      
Accumulated Depreciation 12/31/2016 $ 9,064      
6647 Romiss Court [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) St. Louis, MO      
Land $ 230      
Buildings and Improvements 681      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (8)      
Land 241      
Buildings and Improvements 662      
Total 903      
Accumulated Depreciation 12/31/2016 $ 318      
5525 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 192      
Buildings and Improvements 1,086      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 280      
Land 200      
Buildings and Improvements 1,358      
Total 1,558      
Accumulated Depreciation 12/31/2016 $ 638      
5709 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 192      
Buildings and Improvements 1,086      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 196      
Land 200      
Buildings and Improvements 1,274      
Total 1,474      
Accumulated Depreciation 12/31/2016 $ 600      
5711 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 243      
Buildings and Improvements 1,376      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 171      
Land 255      
Buildings and Improvements 1,535      
Total 1,790      
Accumulated Depreciation 12/31/2016 $ 716      
5455 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 307      
Buildings and Improvements 1,742      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 769      
Land 326      
Buildings and Improvements 2,492      
Total 2,818      
Accumulated Depreciation 12/31/2016 $ 1,278      
5553 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 307      
Buildings and Improvements 1,742      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 427      
Land 326      
Buildings and Improvements 2,150      
Total 2,476      
Accumulated Depreciation 12/31/2016 $ 1,059      
5501 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 215      
Buildings and Improvements 871      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 291      
Land 242      
Buildings and Improvements 1,135      
Total 1,377      
Accumulated Depreciation 12/31/2016 $ 506      
5503 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 98      
Buildings and Improvements 402      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 150      
Land 110      
Buildings and Improvements 540      
Total 650      
Accumulated Depreciation 12/31/2016 $ 245      
5555 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 213      
Buildings and Improvements 1,206      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 222      
Land 221      
Buildings and Improvements 1,420      
Total 1,641      
Accumulated Depreciation 12/31/2016 $ 648      
5557 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 59      
Buildings and Improvements 335      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 60      
Land 62      
Buildings and Improvements 392      
Total 454      
Accumulated Depreciation 12/31/2016 $ 183      
5463 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 497      
Buildings and Improvements 2,751      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,261      
Land 560      
Buildings and Improvements 3,949      
Total 4,509      
Accumulated Depreciation 12/31/2016 $ 1,589      
5461 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 261      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 1,311      
Land 265      
Buildings and Improvements 1,307      
Total 1,572      
Accumulated Depreciation 12/31/2016 $ 584      
5481 W Waters Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 558      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 2,288      
Land 561      
Buildings and Improvements 2,285      
Total 2,846      
Accumulated Depreciation 12/31/2016 $ 946      
4515-4519 George Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 633      
Buildings and Improvements 3,587      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 861      
Land 640      
Buildings and Improvements 4,441      
Total 5,081      
Accumulated Depreciation 12/31/2016 $ 1,710      
6089 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 180      
Buildings and Improvements 987      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 134      
Land 186      
Buildings and Improvements 1,115      
Total 1,301      
Accumulated Depreciation 12/31/2016 $ 402      
6091 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 140      
Buildings and Improvements 730      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 45      
Land 144      
Buildings and Improvements 771      
Total 915      
Accumulated Depreciation 12/31/2016 $ 269      
6103 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 220      
Buildings and Improvements 1,160      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 38      
Land 226      
Buildings and Improvements 1,192      
Total 1,418      
Accumulated Depreciation 12/31/2016 $ 434      
6201 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 200      
Buildings and Improvements 1,107      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 34      
Land 205      
Buildings and Improvements 1,136      
Total 1,341      
Accumulated Depreciation 12/31/2016 $ 497      
6203 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 300      
Buildings and Improvements 1,460      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (287)      
Land 311      
Buildings and Improvements 1,162      
Total 1,473      
Accumulated Depreciation 12/31/2016 $ 426      
6205 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 270      
Buildings and Improvements 1,363      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 36      
Land 278      
Buildings and Improvements 1,391      
Total 1,669      
Accumulated Depreciation 12/31/2016 $ 385      
6101 Johns Road [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 210      
Buildings and Improvements 833      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 93      
Land 216      
Buildings and Improvements 920      
Total 1,136      
Accumulated Depreciation 12/31/2016 $ 385      
4908 Tampa West Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Tampa, FL      
Land $ 2,622      
Buildings and Improvements 8,643      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (820)      
Land 2,635      
Buildings and Improvements 7,810      
Total 10,445      
Accumulated Depreciation 12/31/2016 $ 3,322      
12626 Silicon Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) San Antonio, TX      
Land $ 768      
Buildings and Improvements 3,448      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (329)      
Land 779      
Buildings and Improvements 3,108      
Total 3,887      
Accumulated Depreciation 12/31/2016 $ 1,149      
3100 Pinson Valley Parkway [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Birmingham, AL      
Land $ 303      
Buildings and Improvements 742      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (304)      
Land 225      
Buildings and Improvements 516      
Total 741      
Accumulated Depreciation 12/31/2016 $ 230      
3730 Wheeler Avenue [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Fort Smith, AR      
Land $ 720      
Buildings and Improvements 2,800      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (589)      
Land 583      
Buildings and Improvements 2,348      
Total 2,931      
Accumulated Depreciation 12/31/2016 $ 1,008      
3200 Pond Station [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Jefferson County, KY      
Land $ 2,074      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 9,681      
Land 2,120      
Buildings and Improvements 9,635      
Total 11,755      
Accumulated Depreciation 12/31/2016 $ 2,340      
581 Welltown Road Tyson Blvd [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Winchester, VA      
Land $ 2,320      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 10,972      
Land 2,401      
Buildings and Improvements 10,891      
Total 13,292      
Accumulated Depreciation 12/31/2016 $ 2,589      
7501 NW 106th Terrace [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Kansas City, MO      
Encumbrances $ 11,285      
Land 4,152      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 13,684      
Land 4,228      
Buildings and Improvements 13,608      
Total 17,836      
Accumulated Depreciation 12/31/2016 $ 2,793      
600 Greene Drive [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Greenville, KY      
Land $ 294      
Buildings and Improvements 8,570      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision (727)      
Land 296      
Buildings and Improvements 7,841      
Total 8,137      
Accumulated Depreciation 12/31/2016 $ 5,270      
First Park 94 - Building II [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Somers, WI      
Land $ 2,133      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 19,846      
Land 2,134      
Buildings and Improvements 19,845      
Total 21,979      
Accumulated Depreciation 12/31/2016 $ 0      
The Ranch By First Industrial [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Eastvale, CA      
Land $ 22,857      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 5,895      
Land 22,857      
Buildings and Improvements 5,895      
Total 28,752      
Accumulated Depreciation 12/31/2016 $ 0      
First Park @ PV 303 [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Goodyear, AZ      
Land $ 6,998      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 14,740      
Land 6,998      
Buildings and Improvements 14,740      
Total 21,738      
Accumulated Depreciation 12/31/2016 $ 0      
First Sycamore 215 Logistics Center [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Location (City/State) Riverside, CA      
Land $ 4,900      
Buildings and Improvements 0      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 6,579      
Land 4,900      
Buildings and Improvements 6,579      
Total 11,479      
Accumulated Depreciation 12/31/2016 0      
Developments / Land Parcels [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Encumbrances 2,067      
Land 159,066      
Buildings and Improvements 3,227      
Costs Capitalized Subsequent to Acquisition or Completion and Valuation Provision 27,207      
Land 154,345      
Buildings and Improvements 35,155      
Total 189,500      
Accumulated Depreciation 12/31/2016 $ 3,146