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Schedule III - Real Estate and Accumulated Depreciation (Triple-net) (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 2,378,073      
Initial Cost of Land 3,142,850      
Initial Cost of Building & Improvements 26,915,633      
Cost Capitalized Subsequent to Acquisition 3,649,943      
Carrying Amount of Land 3,440,650      
Carrying Amount of Building and Improvements 30,229,356      
Accumulated Depreciation 6,104,297 $ 5,715,459 $ 5,499,958 $ 4,838,370
Triple-net        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 123,652      
Initial Cost of Land 905,073      
Initial Cost of Building & Improvements 7,397,004      
Cost Capitalized Subsequent to Acquisition 596,731      
Carrying Amount of Land 957,163      
Carrying Amount of Building and Improvements 7,941,645      
Accumulated Depreciation 1,432,228      
Triple-net | Abilene, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 950      
Initial Cost of Building & Improvements 20,987      
Cost Capitalized Subsequent to Acquisition 11,660      
Carrying Amount of Land 950      
Carrying Amount of Building and Improvements 32,647      
Accumulated Depreciation 4,299      
Triple-net | Abilene, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 990      
Initial Cost of Building & Improvements 8,187      
Cost Capitalized Subsequent to Acquisition 1,089      
Carrying Amount of Land 990      
Carrying Amount of Building and Improvements 9,276      
Accumulated Depreciation 1,523      
Triple-net | Aboite Twp, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,770      
Initial Cost of Building & Improvements 19,930      
Cost Capitalized Subsequent to Acquisition 1,601      
Carrying Amount of Land 1,770      
Carrying Amount of Building and Improvements 21,531      
Accumulated Depreciation 5,743      
Triple-net | Agawam, MA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 880      
Initial Cost of Building & Improvements 16,112      
Cost Capitalized Subsequent to Acquisition 2,134      
Carrying Amount of Land 880      
Carrying Amount of Building and Improvements 18,246      
Accumulated Depreciation 8,903      
Triple-net | Akron, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 633      
Initial Cost of Building & Improvements 3,002      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 633      
Carrying Amount of Building and Improvements 3,002      
Accumulated Depreciation 206      
Triple-net | Alexandria, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,452      
Initial Cost of Building & Improvements 6,826      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,452      
Carrying Amount of Building and Improvements 6,826      
Accumulated Depreciation 453      
Triple-net | Alhambra, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 600      
Initial Cost of Building & Improvements 6,305      
Cost Capitalized Subsequent to Acquisition 8,847      
Carrying Amount of Land 600      
Carrying Amount of Building and Improvements 15,152      
Accumulated Depreciation 2,752      
Triple-net | Allen Park, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,767      
Initial Cost of Building & Improvements 5,025      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,767      
Carrying Amount of Building and Improvements 5,025      
Accumulated Depreciation 337      
Triple-net | Allentown, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 494      
Initial Cost of Building & Improvements 11,845      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 494      
Carrying Amount of Building and Improvements 11,845      
Accumulated Depreciation 775      
Triple-net | Allentown, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,491      
Initial Cost of Building & Improvements 4,822      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,491      
Carrying Amount of Building and Improvements 4,822      
Accumulated Depreciation 331      
Triple-net | Alma, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 7,810      
Carrying Amount of Land 1,267      
Carrying Amount of Building and Improvements 6,543      
Accumulated Depreciation 47      
Triple-net | Ames, IA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 330      
Initial Cost of Building & Improvements 8,870      
Cost Capitalized Subsequent to Acquisition 7      
Carrying Amount of Land 330      
Carrying Amount of Building and Improvements 8,877      
Accumulated Depreciation 2,553      
Triple-net | Ann Arbor, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,172      
Initial Cost of Building & Improvements 11,123      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,172      
Carrying Amount of Building and Improvements 11,123      
Accumulated Depreciation 786      
Triple-net | Annandale, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,687      
Initial Cost of Building & Improvements 18,974      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,687      
Carrying Amount of Building and Improvements 18,974      
Accumulated Depreciation 1,215      
Triple-net | Arlington, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,016      
Initial Cost of Building & Improvements 8,801      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,016      
Carrying Amount of Building and Improvements 8,801      
Accumulated Depreciation 575      
Triple-net | Asheboro, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Building & Improvements 5,032      
Cost Capitalized Subsequent to Acquisition 312      
Carrying Amount of Land 290      
Carrying Amount of Building and Improvements 5,344      
Accumulated Depreciation 2,388      
Triple-net | Asheville, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 204      
Initial Cost of Building & Improvements 3,489      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 204      
Carrying Amount of Building and Improvements 3,489      
Accumulated Depreciation 2,019      
Triple-net | Asheville, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 280      
Initial Cost of Building & Improvements 1,955      
Cost Capitalized Subsequent to Acquisition 532      
Carrying Amount of Land 280      
Carrying Amount of Building and Improvements 2,487      
Accumulated Depreciation 1,137      
Triple-net | Atchison, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 140      
Initial Cost of Building & Improvements 5,610      
Cost Capitalized Subsequent to Acquisition 23      
Carrying Amount of Land 140      
Carrying Amount of Building and Improvements 5,633      
Accumulated Depreciation 792      
Triple-net | Austin, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,691      
Initial Cost of Building & Improvements 5,005      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,691      
Carrying Amount of Building and Improvements 5,005      
Accumulated Depreciation 436      
Triple-net | Avon, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,830      
Initial Cost of Building & Improvements 14,470      
Cost Capitalized Subsequent to Acquisition 34      
Carrying Amount of Land 1,830      
Carrying Amount of Building and Improvements 14,504      
Accumulated Depreciation 4,349      
Triple-net | Avon, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 900      
Initial Cost of Building & Improvements 19,444      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 900      
Carrying Amount of Building and Improvements 19,444      
Accumulated Depreciation 3,464      
Triple-net | Avon, CT        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,132      
Initial Cost of Building & Improvements 7,624      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,132      
Carrying Amount of Building and Improvements 7,624      
Accumulated Depreciation 610      
Triple-net | Azusa, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 570      
Initial Cost of Building & Improvements 3,141      
Cost Capitalized Subsequent to Acquisition 7,430      
Carrying Amount of Land 570      
Carrying Amount of Building and Improvements 10,571      
Accumulated Depreciation 3,607      
Triple-net | Bad Axe, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 7,289      
Carrying Amount of Land 1,317      
Carrying Amount of Building and Improvements 5,972      
Accumulated Depreciation 48      
Triple-net | Baldwin City, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 190      
Initial Cost of Building & Improvements 4,810      
Cost Capitalized Subsequent to Acquisition 55      
Carrying Amount of Land 190      
Carrying Amount of Building and Improvements 4,865      
Accumulated Depreciation 701      
Triple-net | Baltimore, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,306      
Initial Cost of Building & Improvements 4,303      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,306      
Carrying Amount of Building and Improvements 4,303      
Accumulated Depreciation 308      
Triple-net | Baltimore, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,069      
Initial Cost of Building & Improvements 3,148      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,069      
Carrying Amount of Building and Improvements 3,148      
Accumulated Depreciation 240      
Triple-net | Barberton, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,307      
Initial Cost of Building & Improvements 9,310      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,307      
Carrying Amount of Building and Improvements 9,310      
Accumulated Depreciation 605      
Triple-net | Bartlesville, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 100      
Initial Cost of Building & Improvements 1,380      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 100      
Carrying Amount of Building and Improvements 1,380      
Accumulated Depreciation 892      
Triple-net | Battle Creek, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 857      
Initial Cost of Building & Improvements 1,821      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 857      
Carrying Amount of Building and Improvements 1,821      
Accumulated Depreciation 168      
Triple-net | Bay City, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 633      
Initial Cost of Building & Improvements 2,619      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 633      
Carrying Amount of Building and Improvements 2,619      
Accumulated Depreciation 194      
Triple-net | Bedford, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 637      
Initial Cost of Building & Improvements 4,432      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 637      
Carrying Amount of Building and Improvements 4,432      
Accumulated Depreciation 341      
Triple-net | Belmont, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,000      
Initial Cost of Building & Improvements 23,526      
Cost Capitalized Subsequent to Acquisition 1,728      
Carrying Amount of Land 3,000      
Carrying Amount of Building and Improvements 25,254      
Accumulated Depreciation 7,611      
Triple-net | Belvidere, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,001      
Initial Cost of Building & Improvements 26,191      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,001      
Carrying Amount of Building and Improvements 26,191      
Accumulated Depreciation 1,614      
Triple-net | Benbrook, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,550      
Initial Cost of Building & Improvements 13,553      
Cost Capitalized Subsequent to Acquisition 2,747      
Carrying Amount of Land 1,550      
Carrying Amount of Building and Improvements 16,300      
Accumulated Depreciation 3,667      
Triple-net | Berkeley, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 11,689      
Initial Cost of Land 3,050      
Initial Cost of Building & Improvements 32,677      
Cost Capitalized Subsequent to Acquisition 5,008      
Carrying Amount of Land 3,050      
Carrying Amount of Building and Improvements 37,685      
Accumulated Depreciation 6,816      
Triple-net | Bethel Park, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,700      
Initial Cost of Building & Improvements 16,007      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,700      
Carrying Amount of Building and Improvements 16,007      
Accumulated Depreciation 5,149      
Triple-net | Bethel Park, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,008      
Initial Cost of Building & Improvements 6,740      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,008      
Carrying Amount of Building and Improvements 6,740      
Accumulated Depreciation 469      
Triple-net | Bethesda, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,218      
Initial Cost of Building & Improvements 6,869      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,218      
Carrying Amount of Building and Improvements 6,869      
Accumulated Depreciation 440      
Triple-net | Bethlehem, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,191      
Initial Cost of Building & Improvements 16,887      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,191      
Carrying Amount of Building and Improvements 16,887      
Accumulated Depreciation 1,053      
Triple-net | Bethlehem, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,143      
Initial Cost of Building & Improvements 13,588      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,143      
Carrying Amount of Building and Improvements 13,588      
Accumulated Depreciation 852      
Triple-net | Beverly Hills, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,000      
Initial Cost of Building & Improvements 13,385      
Cost Capitalized Subsequent to Acquisition 203      
Carrying Amount of Land 6,000      
Carrying Amount of Building and Improvements 13,588      
Accumulated Depreciation 2,101      
Triple-net | Bexleyheath, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,750      
Initial Cost of Building & Improvements 10,807      
Cost Capitalized Subsequent to Acquisition 1,564      
Carrying Amount of Land 4,153      
Carrying Amount of Building and Improvements 11,968      
Accumulated Depreciation 1,931      
Triple-net | Bingham Farms, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 781      
Initial Cost of Building & Improvements 15,671      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 781      
Carrying Amount of Building and Improvements 15,671      
Accumulated Depreciation 1,013      
Triple-net | Birmingham, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,647      
Initial Cost of Building & Improvements 14,853      
Cost Capitalized Subsequent to Acquisition 1,772      
Carrying Amount of Land 1,824      
Carrying Amount of Building and Improvements 16,448      
Accumulated Depreciation 2,447      
Triple-net | Birmingham, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,591      
Initial Cost of Building & Improvements 19,092      
Cost Capitalized Subsequent to Acquisition 2,222      
Carrying Amount of Land 1,762      
Carrying Amount of Building and Improvements 21,143      
Accumulated Depreciation 3,100      
Triple-net | Birmingham, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,462      
Initial Cost of Building & Improvements 9,056      
Cost Capitalized Subsequent to Acquisition 1,129      
Carrying Amount of Land 1,619      
Carrying Amount of Building and Improvements 10,028      
Accumulated Depreciation 1,515      
Triple-net | Birmingham, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,184      
Initial Cost of Building & Improvements 10,085      
Cost Capitalized Subsequent to Acquisition 1,211      
Carrying Amount of Land 1,312      
Carrying Amount of Building and Improvements 11,168      
Accumulated Depreciation 1,650      
Triple-net | Bloomington, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 670      
Initial Cost of Building & Improvements 17,423      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 670      
Carrying Amount of Building and Improvements 17,423      
Accumulated Depreciation 2,641      
Triple-net | Boca Raton, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,200      
Initial Cost of Building & Improvements 4,974      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,200      
Carrying Amount of Building and Improvements 4,974      
Accumulated Depreciation 419      
Triple-net | Boca Raton, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,826      
Initial Cost of Building & Improvements 4,061      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,826      
Carrying Amount of Building and Improvements 4,061      
Accumulated Depreciation 306      
Triple-net | Boulder, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,601      
Initial Cost of Building & Improvements 21,364      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,601      
Carrying Amount of Building and Improvements 21,364      
Accumulated Depreciation 1,477      
Triple-net | Bournemouth, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,668      
Initial Cost of Building & Improvements 16,470      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,668      
Carrying Amount of Building and Improvements 16,470      
Accumulated Depreciation 576      
Triple-net | Boynton Beach, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,138      
Initial Cost of Building & Improvements 10,201      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,138      
Carrying Amount of Building and Improvements 10,201      
Accumulated Depreciation 721      
Triple-net | Boynton Beach, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,804      
Initial Cost of Building & Improvements 14,222      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,804      
Carrying Amount of Building and Improvements 14,222      
Accumulated Depreciation 918      
Triple-net | Bracknell, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,081      
Initial Cost of Building & Improvements 11,470      
Cost Capitalized Subsequent to Acquisition 684      
Carrying Amount of Land 4,372      
Carrying Amount of Building and Improvements 11,863      
Accumulated Depreciation 1,048      
Triple-net | Bradenton, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 252      
Initial Cost of Building & Improvements 3,298      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 252      
Carrying Amount of Building and Improvements 3,298      
Accumulated Depreciation 2,145      
Triple-net | Bradenton, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 480      
Initial Cost of Building & Improvements 9,953      
Cost Capitalized Subsequent to Acquisition 113      
Carrying Amount of Land 480      
Carrying Amount of Building and Improvements 10,066      
Accumulated Depreciation 2,244      
Triple-net | Braintree, MA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 170      
Initial Cost of Building & Improvements 7,157      
Cost Capitalized Subsequent to Acquisition 1,290      
Carrying Amount of Land 170      
Carrying Amount of Building and Improvements 8,447      
Accumulated Depreciation 8,447      
Triple-net | Braintree, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 13,296      
Cost Capitalized Subsequent to Acquisition 1,428      
Carrying Amount of Land 0      
Carrying Amount of Building and Improvements 14,724      
Accumulated Depreciation 2,458      
Triple-net | Brecksville, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 990      
Initial Cost of Building & Improvements 19,353      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 990      
Carrying Amount of Building and Improvements 19,353      
Accumulated Depreciation 3,434      
Triple-net | Brick, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,290      
Initial Cost of Building & Improvements 25,247      
Cost Capitalized Subsequent to Acquisition 1,330      
Carrying Amount of Land 1,290      
Carrying Amount of Building and Improvements 26,577      
Accumulated Depreciation 6,627      
Triple-net | Bridgewater, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,800      
Initial Cost of Building & Improvements 31,810      
Cost Capitalized Subsequent to Acquisition 1,678      
Carrying Amount of Land 1,800      
Carrying Amount of Building and Improvements 33,488      
Accumulated Depreciation 8,322      
Triple-net | Bristol, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 22,876      
Carrying Amount of Land 4,382      
Carrying Amount of Building and Improvements 18,494      
Accumulated Depreciation 1,433      
Triple-net | Bristol, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,337      
Initial Cost of Building & Improvements 13,416      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,337      
Carrying Amount of Building and Improvements 13,416      
Accumulated Depreciation 639      
Triple-net | Brooks, AB        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 1,662      
Initial Cost of Land 376      
Initial Cost of Building & Improvements 4,951      
Cost Capitalized Subsequent to Acquisition 464      
Carrying Amount of Land 408      
Carrying Amount of Building and Improvements 5,383      
Accumulated Depreciation 934      
Triple-net | Bucyrus, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,119      
Initial Cost of Building & Improvements 2,611      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,119      
Carrying Amount of Building and Improvements 2,611      
Accumulated Depreciation 207      
Triple-net | Burleson, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 670      
Initial Cost of Building & Improvements 13,985      
Cost Capitalized Subsequent to Acquisition 2,457      
Carrying Amount of Land 670      
Carrying Amount of Building and Improvements 16,442      
Accumulated Depreciation 3,898      
Triple-net | Burlington, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 280      
Initial Cost of Building & Improvements 4,297      
Cost Capitalized Subsequent to Acquisition 849      
Carrying Amount of Land 280      
Carrying Amount of Building and Improvements 5,146      
Accumulated Depreciation 2,277      
Triple-net | Burlington, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 460      
Initial Cost of Building & Improvements 5,467      
Cost Capitalized Subsequent to Acquisition 110      
Carrying Amount of Land 460      
Carrying Amount of Building and Improvements 5,577      
Accumulated Depreciation 2,530      
Triple-net | Burlington, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,700      
Initial Cost of Building & Improvements 12,554      
Cost Capitalized Subsequent to Acquisition 501      
Carrying Amount of Land 1,700      
Carrying Amount of Building and Improvements 13,055      
Accumulated Depreciation 4,074      
Triple-net | Burlington, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,170      
Initial Cost of Building & Improvements 19,205      
Cost Capitalized Subsequent to Acquisition 172      
Carrying Amount of Land 1,170      
Carrying Amount of Building and Improvements 19,377      
Accumulated Depreciation 5,206      
Triple-net | Burnaby, BC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 7,069      
Initial Cost of Land 7,623      
Initial Cost of Building & Improvements 13,844      
Cost Capitalized Subsequent to Acquisition 1,839      
Carrying Amount of Land 8,273      
Carrying Amount of Building and Improvements 15,033      
Accumulated Depreciation 2,646      
Triple-net | Calgary, AB        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 14,118      
Initial Cost of Land 2,341      
Initial Cost of Building & Improvements 42,768      
Cost Capitalized Subsequent to Acquisition 3,912      
Carrying Amount of Land 2,541      
Carrying Amount of Building and Improvements 46,480      
Accumulated Depreciation 7,760      
Triple-net | Calgary, AB        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 23,452      
Initial Cost of Land 4,569      
Initial Cost of Building & Improvements 70,199      
Cost Capitalized Subsequent to Acquisition 6,378      
Carrying Amount of Land 4,958      
Carrying Amount of Building and Improvements 76,188      
Accumulated Depreciation 12,605      
Triple-net | Camp Hill, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 517      
Initial Cost of Building & Improvements 3,596      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 517      
Carrying Amount of Building and Improvements 3,596      
Accumulated Depreciation 240      
Triple-net | Canonsburg, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 911      
Initial Cost of Building & Improvements 4,828      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 911      
Carrying Amount of Building and Improvements 4,828      
Accumulated Depreciation 352      
Triple-net | Canton, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 300      
Initial Cost of Building & Improvements 2,098      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 300      
Carrying Amount of Building and Improvements 2,098      
Accumulated Depreciation 1,214      
Triple-net | Canton, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,399      
Initial Cost of Building & Improvements 16,966      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,399      
Carrying Amount of Building and Improvements 16,966      
Accumulated Depreciation 1,093      
Triple-net | Cape Coral, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 530      
Initial Cost of Building & Improvements 3,281      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 530      
Carrying Amount of Building and Improvements 3,281      
Accumulated Depreciation 1,629      
Triple-net | Cape Coral, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 7,925      
Initial Cost of Land 760      
Initial Cost of Building & Improvements 18,868      
Cost Capitalized Subsequent to Acquisition 110      
Carrying Amount of Land 760      
Carrying Amount of Building and Improvements 18,978      
Accumulated Depreciation 4,296      
Triple-net | Cape May Court House, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,440      
Initial Cost of Building & Improvements 17,002      
Cost Capitalized Subsequent to Acquisition 1,775      
Carrying Amount of Land 1,440      
Carrying Amount of Building and Improvements 18,777      
Accumulated Depreciation 3,303      
Triple-net | Carlisle, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 978      
Initial Cost of Building & Improvements 8,204      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 978      
Carrying Amount of Building and Improvements 8,204      
Accumulated Depreciation 562      
Triple-net | Carmel, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,700      
Initial Cost of Building & Improvements 19,491      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 1,700      
Carrying Amount of Building and Improvements 19,492      
Accumulated Depreciation 3,070      
Triple-net | Carmel, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,583      
Initial Cost of Building & Improvements 6,069      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,583      
Carrying Amount of Building and Improvements 6,069      
Accumulated Depreciation 447      
Triple-net | Carmel, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 2,296      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Building and Improvements 2,296      
Accumulated Depreciation 140      
Triple-net | Carrollton, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,010      
Initial Cost of Building & Improvements 19,549      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,010      
Carrying Amount of Building and Improvements 19,549      
Accumulated Depreciation 2,254      
Triple-net | Cary, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,500      
Initial Cost of Building & Improvements 4,350      
Cost Capitalized Subsequent to Acquisition 1,366      
Carrying Amount of Land 1,500      
Carrying Amount of Building and Improvements 5,716      
Accumulated Depreciation 2,956      
Triple-net | Castleton, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 920      
Initial Cost of Building & Improvements 15,137      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 920      
Carrying Amount of Building and Improvements 15,137      
Accumulated Depreciation 2,801      
Triple-net | Cedar Grove, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,850      
Initial Cost of Building & Improvements 27,737      
Cost Capitalized Subsequent to Acquisition 20      
Carrying Amount of Land 2,850      
Carrying Amount of Building and Improvements 27,757      
Accumulated Depreciation 7,524      
Triple-net | Cedar Rapids, IA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 596      
Initial Cost of Building & Improvements 9,352      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 596      
Carrying Amount of Building and Improvements 9,352      
Accumulated Depreciation 592      
Triple-net | Centerville, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 920      
Initial Cost of Building & Improvements 3,958      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 920      
Carrying Amount of Building and Improvements 3,958      
Accumulated Depreciation 388      
Triple-net | Chagrin Falls, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 832      
Initial Cost of Building & Improvements 10,837      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 832      
Carrying Amount of Building and Improvements 10,837      
Accumulated Depreciation 731      
Triple-net | Chambersburg, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,373      
Initial Cost of Building & Improvements 8,862      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,373      
Carrying Amount of Building and Improvements 8,862      
Accumulated Depreciation 629      
Triple-net | Chapel Hill, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 354      
Initial Cost of Building & Improvements 2,646      
Cost Capitalized Subsequent to Acquisition 1,201      
Carrying Amount of Land 354      
Carrying Amount of Building and Improvements 3,847      
Accumulated Depreciation 1,667      
Triple-net | Charleston, SC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,333      
Initial Cost of Building & Improvements 5,554      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,333      
Carrying Amount of Building and Improvements 5,554      
Accumulated Depreciation 374      
Triple-net | Charleston, WV        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 440      
Initial Cost of Building & Improvements 17,575      
Cost Capitalized Subsequent to Acquisition 306      
Carrying Amount of Land 440      
Carrying Amount of Building and Improvements 17,881      
Accumulated Depreciation 4,635      
Triple-net | Chatham, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 320      
Initial Cost of Building & Improvements 14,039      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 320      
Carrying Amount of Building and Improvements 14,039      
Accumulated Depreciation 2,595      
Triple-net | Cherry Hill, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,416      
Initial Cost of Building & Improvements 9,871      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,416      
Carrying Amount of Building and Improvements 9,871      
Accumulated Depreciation 693      
Triple-net | Chester, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,320      
Initial Cost of Building & Improvements 18,127      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,320      
Carrying Amount of Building and Improvements 18,127      
Accumulated Depreciation 3,318      
Triple-net | Chevy Chase, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,515      
Initial Cost of Building & Improvements 8,685      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,515      
Carrying Amount of Building and Improvements 8,685      
Accumulated Depreciation 574      
Triple-net | Chickasha, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 85      
Initial Cost of Building & Improvements 1,395      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 85      
Carrying Amount of Building and Improvements 1,395      
Accumulated Depreciation 896      
Triple-net | Chillicothe, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,145      
Initial Cost of Building & Improvements 8,994      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,145      
Carrying Amount of Building and Improvements 8,994      
Accumulated Depreciation 590      
Triple-net | Cincinnati, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 912      
Initial Cost of Building & Improvements 14,010      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 912      
Carrying Amount of Building and Improvements 14,010      
Accumulated Depreciation 934      
Triple-net | Citrus Heights, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 5,207      
Initial Cost of Building & Improvements 31,715      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 5,207      
Carrying Amount of Building and Improvements 31,715      
Accumulated Depreciation 1,989      
Triple-net | Claremore, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 155      
Initial Cost of Building & Improvements 1,427      
Cost Capitalized Subsequent to Acquisition 6,130      
Carrying Amount of Land 155      
Carrying Amount of Building and Improvements 7,557      
Accumulated Depreciation 1,970      
Triple-net | Clarksville, TN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 330      
Initial Cost of Building & Improvements 2,292      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 330      
Carrying Amount of Building and Improvements 2,292      
Accumulated Depreciation 1,322      
Triple-net | Clayton, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 520      
Initial Cost of Building & Improvements 15,733      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 520      
Carrying Amount of Building and Improvements 15,733      
Accumulated Depreciation 2,636      
Triple-net | Clevedon, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,838      
Initial Cost of Building & Improvements 16,927      
Cost Capitalized Subsequent to Acquisition 2,122      
Carrying Amount of Land 3,142      
Carrying Amount of Building and Improvements 18,745      
Accumulated Depreciation 3,128      
Triple-net | Cloquet, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 340      
Initial Cost of Building & Improvements 4,660      
Cost Capitalized Subsequent to Acquisition 120      
Carrying Amount of Land 340      
Carrying Amount of Building and Improvements 4,780      
Accumulated Depreciation 1,239      
Triple-net | Cobham, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 9,808      
Initial Cost of Building & Improvements 24,991      
Cost Capitalized Subsequent to Acquisition 3,737      
Carrying Amount of Land 10,861      
Carrying Amount of Building and Improvements 27,675      
Accumulated Depreciation 5,364      
Triple-net | Colchester, CT        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 980      
Initial Cost of Building & Improvements 4,860      
Cost Capitalized Subsequent to Acquisition 544      
Carrying Amount of Land 980      
Carrying Amount of Building and Improvements 5,404      
Accumulated Depreciation 1,828      
Triple-net | Colorado Springs, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,280      
Initial Cost of Building & Improvements 62,168      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,280      
Carrying Amount of Building and Improvements 62,168      
Accumulated Depreciation 8,523      
Triple-net | Colorado Springs, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,730      
Initial Cost of Building & Improvements 25,493      
Cost Capitalized Subsequent to Acquisition 693      
Carrying Amount of Land 1,730      
Carrying Amount of Building and Improvements 26,186      
Accumulated Depreciation 3,548      
Triple-net | Columbia, TN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 341      
Initial Cost of Building & Improvements 2,295      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 341      
Carrying Amount of Building and Improvements 2,295      
Accumulated Depreciation 1,324      
Triple-net | Columbia, SC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,699      
Initial Cost of Building & Improvements 2,319      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,699      
Carrying Amount of Building and Improvements 2,319      
Accumulated Depreciation 170      
Triple-net | Columbia Heights, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 825      
Initial Cost of Building & Improvements 14,175      
Cost Capitalized Subsequent to Acquisition 163      
Carrying Amount of Land 825      
Carrying Amount of Building and Improvements 14,338      
Accumulated Depreciation 3,496      
Triple-net | Concord, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 550      
Initial Cost of Building & Improvements 3,921      
Cost Capitalized Subsequent to Acquisition 416      
Carrying Amount of Land 550      
Carrying Amount of Building and Improvements 4,337      
Accumulated Depreciation 1,959      
Triple-net | Concord, NH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,760      
Initial Cost of Building & Improvements 43,179      
Cost Capitalized Subsequent to Acquisition 634      
Carrying Amount of Land 1,760      
Carrying Amount of Building and Improvements 43,813      
Accumulated Depreciation 11,371      
Triple-net | Concord, NH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 720      
Initial Cost of Building & Improvements 3,041      
Cost Capitalized Subsequent to Acquisition 340      
Carrying Amount of Land 720      
Carrying Amount of Building and Improvements 3,381      
Accumulated Depreciation 1,099      
Triple-net | Congleton, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,036      
Initial Cost of Building & Improvements 5,120      
Cost Capitalized Subsequent to Acquisition 768      
Carrying Amount of Land 2,254      
Carrying Amount of Building and Improvements 5,670      
Accumulated Depreciation 917      
Triple-net | Coppell, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,550      
Initial Cost of Building & Improvements 8,386      
Cost Capitalized Subsequent to Acquisition 228      
Carrying Amount of Land 1,550      
Carrying Amount of Building and Improvements 8,614      
Accumulated Depreciation 1,872      
Triple-net | Corby, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,228      
Initial Cost of Building & Improvements 5,144      
Cost Capitalized Subsequent to Acquisition 881      
Carrying Amount of Land 1,240      
Carrying Amount of Building and Improvements 6,013      
Accumulated Depreciation 595      
Triple-net | Costa Mesa, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,050      
Initial Cost of Building & Improvements 19,969      
Cost Capitalized Subsequent to Acquisition 969      
Carrying Amount of Land 2,050      
Carrying Amount of Building and Improvements 20,938      
Accumulated Depreciation 6,446      
Triple-net | Coventry, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,962      
Initial Cost of Building & Improvements 13,830      
Cost Capitalized Subsequent to Acquisition 1,695      
Carrying Amount of Land 2,172      
Carrying Amount of Building and Improvements 15,315      
Accumulated Depreciation 2,349      
Triple-net | Crawfordsville, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 720      
Initial Cost of Building & Improvements 17,239      
Cost Capitalized Subsequent to Acquisition 1,426      
Carrying Amount of Land 720      
Carrying Amount of Building and Improvements 18,665      
Accumulated Depreciation 3,344      
Triple-net | Dallastown, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,377      
Initial Cost of Building & Improvements 16,797      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,377      
Carrying Amount of Building and Improvements 16,797      
Accumulated Depreciation 1,121      
Triple-net | Danville, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 410      
Initial Cost of Building & Improvements 3,954      
Cost Capitalized Subsequent to Acquisition 1,032      
Carrying Amount of Land 410      
Carrying Amount of Building and Improvements 4,986      
Accumulated Depreciation 2,182      
Triple-net | Danville, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 240      
Initial Cost of Building & Improvements 8,436      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 240      
Carrying Amount of Building and Improvements 8,436      
Accumulated Depreciation 1,577      
Triple-net | Daphne, AL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,880      
Initial Cost of Building & Improvements 8,670      
Cost Capitalized Subsequent to Acquisition 384      
Carrying Amount of Land 2,880      
Carrying Amount of Building and Improvements 9,054      
Accumulated Depreciation 2,143      
Triple-net | Davenport, IA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 566      
Initial Cost of Building & Improvements 2,017      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 566      
Carrying Amount of Building and Improvements 2,017      
Accumulated Depreciation 138      
Triple-net | Davenport, IA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 910      
Initial Cost of Building & Improvements 20,038      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 910      
Carrying Amount of Building and Improvements 20,038      
Accumulated Depreciation 1,300      
Triple-net | Dayton, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,188      
Initial Cost of Building & Improvements 5,412      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,188      
Carrying Amount of Building and Improvements 5,412      
Accumulated Depreciation 385      
Triple-net | Dearborn Heights, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,197      
Initial Cost of Building & Improvements 3,394      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,197      
Carrying Amount of Building and Improvements 3,394      
Accumulated Depreciation 266      
Triple-net | Decatur, GA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,413      
Initial Cost of Building & Improvements 13,796      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,413      
Carrying Amount of Building and Improvements 13,796      
Accumulated Depreciation 857      
Triple-net | Delray Beach, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,158      
Initial Cost of Building & Improvements 13,572      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,158      
Carrying Amount of Building and Improvements 13,572      
Accumulated Depreciation 912      
Triple-net | Delray Beach, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,125      
Initial Cost of Building & Improvements 11,840      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,125      
Carrying Amount of Building and Improvements 11,840      
Accumulated Depreciation 818      
Triple-net | Denton, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,760      
Initial Cost of Building & Improvements 8,305      
Cost Capitalized Subsequent to Acquisition 216      
Carrying Amount of Land 1,760      
Carrying Amount of Building and Improvements 8,521      
Accumulated Depreciation 2,320      
Triple-net | Denver, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,222      
Initial Cost of Building & Improvements 24,804      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,222      
Carrying Amount of Building and Improvements 24,804      
Accumulated Depreciation 1,547      
Triple-net | Derby, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,359      
Initial Cost of Building & Improvements 8,539      
Cost Capitalized Subsequent to Acquisition 776      
Carrying Amount of Land 2,527      
Carrying Amount of Building and Improvements 9,147      
Accumulated Depreciation 1,220      
Triple-net | Dover, DE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 600      
Initial Cost of Building & Improvements 22,266      
Cost Capitalized Subsequent to Acquisition 141      
Carrying Amount of Land 600      
Carrying Amount of Building and Improvements 22,407      
Accumulated Depreciation 5,944      
Triple-net | Dowagiac, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 2,603      
Carrying Amount of Land 825      
Carrying Amount of Building and Improvements 1,778      
Accumulated Depreciation 21      
Triple-net | Droitwich, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 16,380      
Carrying Amount of Land 3,895      
Carrying Amount of Building and Improvements 12,485      
Accumulated Depreciation 0      
Triple-net | Dublin, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,393      
Initial Cost of Building & Improvements 2,911      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,393      
Carrying Amount of Building and Improvements 2,911      
Accumulated Depreciation 237      
Triple-net | Dubuque, IA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 568      
Initial Cost of Building & Improvements 8,902      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 568      
Carrying Amount of Building and Improvements 8,902      
Accumulated Depreciation 564      
Triple-net | Dunedin, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,883      
Initial Cost of Building & Improvements 13,325      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,883      
Carrying Amount of Building and Improvements 13,325      
Accumulated Depreciation 849      
Triple-net | Durham, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,476      
Initial Cost of Building & Improvements 10,659      
Cost Capitalized Subsequent to Acquisition 3,085      
Carrying Amount of Land 1,476      
Carrying Amount of Building and Improvements 13,744      
Accumulated Depreciation 12,561      
Triple-net | Eagan, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 15,890      
Initial Cost of Land 2,260      
Initial Cost of Building & Improvements 31,643      
Cost Capitalized Subsequent to Acquisition 300      
Carrying Amount of Land 2,260      
Carrying Amount of Building and Improvements 31,943      
Accumulated Depreciation 4,397      
Triple-net | East Brunswick, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,380      
Initial Cost of Building & Improvements 34,229      
Cost Capitalized Subsequent to Acquisition 1,093      
Carrying Amount of Land 1,380      
Carrying Amount of Building and Improvements 35,322      
Accumulated Depreciation 8,636      
Triple-net | Eastbourne, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,071      
Initial Cost of Building & Improvements 24,438      
Cost Capitalized Subsequent to Acquisition 3,062      
Carrying Amount of Land 4,508      
Carrying Amount of Building and Improvements 27,063      
Accumulated Depreciation 4,457      
Triple-net | Easton, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,109      
Initial Cost of Building & Improvements 7,500      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,109      
Carrying Amount of Building and Improvements 7,500      
Accumulated Depreciation 651      
Triple-net | Easton, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,430      
Initial Cost of Building & Improvements 13,396      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,430      
Carrying Amount of Building and Improvements 13,396      
Accumulated Depreciation 898      
Triple-net | Easton, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,620      
Initial Cost of Building & Improvements 10,049      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,620      
Carrying Amount of Building and Improvements 10,049      
Accumulated Depreciation 796      
Triple-net | Eden, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 390      
Initial Cost of Building & Improvements 4,877      
Cost Capitalized Subsequent to Acquisition 86      
Carrying Amount of Land 390      
Carrying Amount of Building and Improvements 4,963      
Accumulated Depreciation 2,277      
Triple-net | Edmond, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 410      
Initial Cost of Building & Improvements 8,388      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 410      
Carrying Amount of Building and Improvements 8,388      
Accumulated Depreciation 1,988      
Triple-net | Edmond, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,810      
Initial Cost of Building & Improvements 14,849      
Cost Capitalized Subsequent to Acquisition 3,260      
Carrying Amount of Land 1,810      
Carrying Amount of Building and Improvements 18,109      
Accumulated Depreciation 2,931      
Triple-net | Edmond, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,650      
Initial Cost of Building & Improvements 25,167      
Cost Capitalized Subsequent to Acquisition 1,700      
Carrying Amount of Land 1,650      
Carrying Amount of Building and Improvements 26,867      
Accumulated Depreciation 2,824      
Triple-net | Elizabeth City, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Building & Improvements 2,760      
Cost Capitalized Subsequent to Acquisition 2,197      
Carrying Amount of Land 200      
Carrying Amount of Building and Improvements 4,957      
Accumulated Depreciation 2,487      
Triple-net | Elk Grove Village, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,344      
Initial Cost of Building & Improvements 7,073      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,344      
Carrying Amount of Building and Improvements 7,073      
Accumulated Depreciation 496      
Triple-net | Elk Grove Village, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,733      
Initial Cost of Building & Improvements 18,745      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,733      
Carrying Amount of Building and Improvements 18,745      
Accumulated Depreciation 1,163      
Triple-net | Encinitas, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,460      
Initial Cost of Building & Improvements 7,721      
Cost Capitalized Subsequent to Acquisition 1,987      
Carrying Amount of Land 1,460      
Carrying Amount of Building and Improvements 9,708      
Accumulated Depreciation 4,656      
Triple-net | Englewood, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 930      
Initial Cost of Building & Improvements 4,514      
Cost Capitalized Subsequent to Acquisition 26      
Carrying Amount of Land 930      
Carrying Amount of Building and Improvements 4,540      
Accumulated Depreciation 1,354      
Triple-net | Escondido, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,520      
Initial Cost of Building & Improvements 24,024      
Cost Capitalized Subsequent to Acquisition 785      
Carrying Amount of Land 1,520      
Carrying Amount of Building and Improvements 24,809      
Accumulated Depreciation 7,574      
Triple-net | Eureka, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 50      
Initial Cost of Building & Improvements 3,950      
Cost Capitalized Subsequent to Acquisition 71      
Carrying Amount of Land 50      
Carrying Amount of Building and Improvements 4,021      
Accumulated Depreciation 568      
Triple-net | Everett, WA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,400      
Initial Cost of Building & Improvements 5,476      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,400      
Carrying Amount of Building and Improvements 5,476      
Accumulated Depreciation 3,080      
Triple-net | Exton, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,600      
Initial Cost of Building & Improvements 27,267      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,600      
Carrying Amount of Building and Improvements 27,267      
Accumulated Depreciation 2,086      
Triple-net | Fairfax, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,827      
Initial Cost of Building & Improvements 17,304      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,827      
Carrying Amount of Building and Improvements 17,304      
Accumulated Depreciation 1,171      
Triple-net | Fairfax, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,099      
Initial Cost of Building & Improvements 17,614      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,099      
Carrying Amount of Building and Improvements 17,614      
Accumulated Depreciation 1,166      
Triple-net | Fairhope, AL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 570      
Initial Cost of Building & Improvements 9,119      
Cost Capitalized Subsequent to Acquisition 112      
Carrying Amount of Land 570      
Carrying Amount of Building and Improvements 9,231      
Accumulated Depreciation 2,164      
Triple-net | Fall River, MA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 620      
Initial Cost of Building & Improvements 5,829      
Cost Capitalized Subsequent to Acquisition 4,856      
Carrying Amount of Land 620      
Carrying Amount of Building and Improvements 10,685      
Accumulated Depreciation 5,967      
Triple-net | Fanwood, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,850      
Initial Cost of Building & Improvements 55,175      
Cost Capitalized Subsequent to Acquisition 1,467      
Carrying Amount of Land 2,850      
Carrying Amount of Building and Improvements 56,642      
Accumulated Depreciation 13,649      
Triple-net | Faribault, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 780      
Initial Cost of Building & Improvements 11,539      
Cost Capitalized Subsequent to Acquisition 300      
Carrying Amount of Land 780      
Carrying Amount of Building and Improvements 11,839      
Accumulated Depreciation 1,578      
Triple-net | Farmington, CT        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,693      
Initial Cost of Building & Improvements 10,455      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,693      
Carrying Amount of Building and Improvements 10,455      
Accumulated Depreciation 722      
Triple-net | Farnborough, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,036      
Initial Cost of Building & Improvements 5,737      
Cost Capitalized Subsequent to Acquisition 834      
Carrying Amount of Land 2,254      
Carrying Amount of Building and Improvements 6,353      
Accumulated Depreciation 998      
Triple-net | Fayetteville, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,150      
Initial Cost of Building & Improvements 20,173      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,150      
Carrying Amount of Building and Improvements 20,173      
Accumulated Depreciation 4,633      
Triple-net | Fayetteville, NY        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 410      
Initial Cost of Building & Improvements 3,962      
Cost Capitalized Subsequent to Acquisition 500      
Carrying Amount of Land 410      
Carrying Amount of Building and Improvements 4,462      
Accumulated Depreciation 2,187      
Triple-net | Findlay, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Building & Improvements 1,800      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 200      
Carrying Amount of Building and Improvements 1,800      
Accumulated Depreciation 1,104      
Triple-net | Fishers, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,500      
Initial Cost of Building & Improvements 14,500      
Cost Capitalized Subsequent to Acquisition 21      
Carrying Amount of Land 1,500      
Carrying Amount of Building and Improvements 14,521      
Accumulated Depreciation 4,357      
Triple-net | Fishersville, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 788      
Initial Cost of Building & Improvements 2,101      
Cost Capitalized Subsequent to Acquisition 3      
Carrying Amount of Land 788      
Carrying Amount of Building and Improvements 2,104      
Accumulated Depreciation 908      
Triple-net | Flint, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,271      
Initial Cost of Building & Improvements 18,050      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,271      
Carrying Amount of Building and Improvements 18,050      
Accumulated Depreciation 1,135      
Triple-net | Florence, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 300      
Initial Cost of Building & Improvements 2,978      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 300      
Carrying Amount of Building and Improvements 2,978      
Accumulated Depreciation 1,474      
Triple-net | Flourtown, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,800      
Initial Cost of Building & Improvements 14,830      
Cost Capitalized Subsequent to Acquisition 266      
Carrying Amount of Land 1,800      
Carrying Amount of Building and Improvements 15,096      
Accumulated Depreciation 4,159      
Triple-net | Flower Mound, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,800      
Initial Cost of Building & Improvements 8,414      
Cost Capitalized Subsequent to Acquisition 253      
Carrying Amount of Land 1,800      
Carrying Amount of Building and Improvements 8,667      
Accumulated Depreciation 2,066      
Triple-net | Floyd, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 680      
Initial Cost of Building & Improvements 3,618      
Cost Capitalized Subsequent to Acquisition 4      
Carrying Amount of Land 680      
Carrying Amount of Building and Improvements 3,622      
Accumulated Depreciation 679      
Triple-net | Flushing, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 690      
Initial Cost of Building & Improvements 1,701      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 690      
Carrying Amount of Building and Improvements 1,701      
Accumulated Depreciation 178      
Triple-net | Flushing, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,415      
Initial Cost of Building & Improvements 8,533      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,415      
Carrying Amount of Building and Improvements 8,533      
Accumulated Depreciation 588      
Triple-net | Forest City, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 320      
Initial Cost of Building & Improvements 4,497      
Cost Capitalized Subsequent to Acquisition 208      
Carrying Amount of Land 320      
Carrying Amount of Building and Improvements 4,705      
Accumulated Depreciation 2,113      
Triple-net | Fort Ashby, WV        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 330      
Initial Cost of Building & Improvements 19,566      
Cost Capitalized Subsequent to Acquisition 356      
Carrying Amount of Land 330      
Carrying Amount of Building and Improvements 19,922      
Accumulated Depreciation 5,139      
Triple-net | Fort Collins, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,680      
Initial Cost of Building & Improvements 58,608      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,680      
Carrying Amount of Building and Improvements 58,608      
Accumulated Depreciation 8,009      
Triple-net | Fort Collins, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 890      
Initial Cost of Building & Improvements 4,532      
Cost Capitalized Subsequent to Acquisition 4      
Carrying Amount of Land 890      
Carrying Amount of Building and Improvements 4,536      
Accumulated Depreciation 561      
Triple-net | Fort Worth, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 450      
Initial Cost of Building & Improvements 13,615      
Cost Capitalized Subsequent to Acquisition 5,086      
Carrying Amount of Land 450      
Carrying Amount of Building and Improvements 18,701      
Accumulated Depreciation 5,411      
Triple-net | Fountain Valley, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 5,259      
Initial Cost of Building & Improvements 9,375      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 5,259      
Carrying Amount of Building and Improvements 9,375      
Accumulated Depreciation 619      
Triple-net | Franconia, NH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 360      
Initial Cost of Building & Improvements 11,320      
Cost Capitalized Subsequent to Acquisition 70      
Carrying Amount of Land 360      
Carrying Amount of Building and Improvements 11,390      
Accumulated Depreciation 3,062      
Triple-net | Fredericksburg, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,000      
Initial Cost of Building & Improvements 20,000      
Cost Capitalized Subsequent to Acquisition 2,161      
Carrying Amount of Land 1,000      
Carrying Amount of Building and Improvements 22,161      
Accumulated Depreciation 8,448      
Triple-net | Fredericksburg, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,130      
Initial Cost of Building & Improvements 23,202      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,130      
Carrying Amount of Building and Improvements 23,202      
Accumulated Depreciation 4,022      
Triple-net | Ft. Myers, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,110      
Initial Cost of Building & Improvements 10,559      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,110      
Carrying Amount of Building and Improvements 10,559      
Accumulated Depreciation 717      
Triple-net | Ft. Myers, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,139      
Initial Cost of Building & Improvements 18,235      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,139      
Carrying Amount of Building and Improvements 18,235      
Accumulated Depreciation 1,210      
Triple-net | Ft. Myers, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,502      
Initial Cost of Building & Improvements 9,741      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,502      
Carrying Amount of Building and Improvements 9,741      
Accumulated Depreciation 782      
Triple-net | Gainesville, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 31,462      
Carrying Amount of Land 2,374      
Carrying Amount of Building and Improvements 29,088      
Accumulated Depreciation 964      
Triple-net | Galesburg, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,708      
Initial Cost of Building & Improvements 3,839      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,708      
Carrying Amount of Building and Improvements 3,839      
Accumulated Depreciation 258      
Triple-net | Gardner, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Building & Improvements 2,800      
Cost Capitalized Subsequent to Acquisition 93      
Carrying Amount of Land 200      
Carrying Amount of Building and Improvements 2,893      
Accumulated Depreciation 433      
Triple-net | Gastonia, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 470      
Initial Cost of Building & Improvements 6,129      
Cost Capitalized Subsequent to Acquisition 55      
Carrying Amount of Land 470      
Carrying Amount of Building and Improvements 6,184      
Accumulated Depreciation 2,826      
Triple-net | Gastonia, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 310      
Initial Cost of Building & Improvements 3,096      
Cost Capitalized Subsequent to Acquisition 85      
Carrying Amount of Land 310      
Carrying Amount of Building and Improvements 3,181      
Accumulated Depreciation 1,497      
Triple-net | Gastonia, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 400      
Initial Cost of Building & Improvements 5,029      
Cost Capitalized Subsequent to Acquisition 624      
Carrying Amount of Land 400      
Carrying Amount of Building and Improvements 5,653      
Accumulated Depreciation 2,385      
Triple-net | Geneva, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,502      
Initial Cost of Building & Improvements 16,193      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,502      
Carrying Amount of Building and Improvements 16,193      
Accumulated Depreciation 1,071      
Triple-net | Georgetown, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Building & Improvements 2,100      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 200      
Carrying Amount of Building and Improvements 2,100      
Accumulated Depreciation 1,278      
Triple-net | Gig Harbor, WA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,000      
Initial Cost of Building & Improvements 4,461      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,000      
Carrying Amount of Building and Improvements 4,461      
Accumulated Depreciation 362      
Triple-net | Glen Ellyn, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,496      
Initial Cost of Building & Improvements 6,634      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,496      
Carrying Amount of Building and Improvements 6,634      
Accumulated Depreciation 488      
Triple-net | Granbury, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,550      
Initial Cost of Building & Improvements 2,940      
Cost Capitalized Subsequent to Acquisition 777      
Carrying Amount of Land 2,550      
Carrying Amount of Building and Improvements 3,717      
Accumulated Depreciation 1,015      
Triple-net | Granger, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,670      
Initial Cost of Building & Improvements 21,280      
Cost Capitalized Subsequent to Acquisition 2,401      
Carrying Amount of Land 1,670      
Carrying Amount of Building and Improvements 23,681      
Accumulated Depreciation 6,248      
Triple-net | Grapevine, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,220      
Initial Cost of Building & Improvements 17,648      
Cost Capitalized Subsequent to Acquisition 112      
Carrying Amount of Land 2,220      
Carrying Amount of Building and Improvements 17,760      
Accumulated Depreciation 2,451      
Triple-net | Greeley, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,077      
Initial Cost of Building & Improvements 18,051      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,077      
Carrying Amount of Building and Improvements 18,051      
Accumulated Depreciation 1,877      
Triple-net | Greensboro, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 330      
Initial Cost of Building & Improvements 2,970      
Cost Capitalized Subsequent to Acquisition 643      
Carrying Amount of Land 330      
Carrying Amount of Building and Improvements 3,613      
Accumulated Depreciation 1,669      
Triple-net | Greensboro, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 560      
Initial Cost of Building & Improvements 5,507      
Cost Capitalized Subsequent to Acquisition 1,390      
Carrying Amount of Land 560      
Carrying Amount of Building and Improvements 6,897      
Accumulated Depreciation 3,072      
Triple-net | Greenville, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 5,831      
Carrying Amount of Land 1,490      
Carrying Amount of Building and Improvements 4,341      
Accumulated Depreciation 41      
Triple-net | Greenville, SC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 310      
Initial Cost of Building & Improvements 4,750      
Cost Capitalized Subsequent to Acquisition 252      
Carrying Amount of Land 310      
Carrying Amount of Building and Improvements 5,002      
Accumulated Depreciation 2,143      
Triple-net | Greenville, SC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,751      
Initial Cost of Building & Improvements 8,771      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,751      
Carrying Amount of Building and Improvements 8,771      
Accumulated Depreciation 596      
Triple-net | Greenville, SC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 947      
Initial Cost of Building & Improvements 1,445      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 947      
Carrying Amount of Building and Improvements 1,445      
Accumulated Depreciation 164      
Triple-net | Greenville, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Building & Improvements 4,393      
Cost Capitalized Subsequent to Acquisition 328      
Carrying Amount of Land 290      
Carrying Amount of Building and Improvements 4,721      
Accumulated Depreciation 2,097      
Triple-net | Greenwood, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,550      
Initial Cost of Building & Improvements 22,770      
Cost Capitalized Subsequent to Acquisition 81      
Carrying Amount of Land 1,550      
Carrying Amount of Building and Improvements 22,851      
Accumulated Depreciation 6,128      
Triple-net | Grosse Pointe, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 867      
Initial Cost of Building & Improvements 2,385      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 867      
Carrying Amount of Building and Improvements 2,385      
Accumulated Depreciation 170      
Triple-net | Groton, CT        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,430      
Initial Cost of Building & Improvements 19,941      
Cost Capitalized Subsequent to Acquisition 968      
Carrying Amount of Land 2,430      
Carrying Amount of Building and Improvements 20,909      
Accumulated Depreciation 6,038      
Triple-net | Hamilton, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 440      
Initial Cost of Building & Improvements 4,469      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 440      
Carrying Amount of Building and Improvements 4,469      
Accumulated Depreciation 2,206      
Triple-net | Hanahan, SC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,934      
Initial Cost of Building & Improvements 3,986      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,934      
Carrying Amount of Building and Improvements 3,986      
Accumulated Depreciation 322      
Triple-net | Hanford, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,382      
Initial Cost of Building & Improvements 9,829      
Cost Capitalized Subsequent to Acquisition 1,204      
Carrying Amount of Land 1,530      
Carrying Amount of Building and Improvements 10,885      
Accumulated Depreciation 2,131      
Triple-net | Harrisburg, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 569      
Initial Cost of Building & Improvements 12,822      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 569      
Carrying Amount of Building and Improvements 12,822      
Accumulated Depreciation 844      
Triple-net | Harrow, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 7,402      
Initial Cost of Building & Improvements 8,266      
Cost Capitalized Subsequent to Acquisition 1,683      
Carrying Amount of Land 8,197      
Carrying Amount of Building and Improvements 9,154      
Accumulated Depreciation 1,538      
Triple-net | Hastings, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 8,122      
Carrying Amount of Land 1,603      
Carrying Amount of Building and Improvements 6,519      
Accumulated Depreciation 51      
Triple-net | Hatboro, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 28,112      
Cost Capitalized Subsequent to Acquisition 1,771      
Carrying Amount of Land 0      
Carrying Amount of Building and Improvements 29,883      
Accumulated Depreciation 7,692      
Triple-net | Hatboro, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,192      
Initial Cost of Building & Improvements 7,608      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,192      
Carrying Amount of Building and Improvements 7,608      
Accumulated Depreciation 683      
Triple-net | Hatfield, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,924      
Initial Cost of Building & Improvements 7,527      
Cost Capitalized Subsequent to Acquisition 1,122      
Carrying Amount of Land 3,238      
Carrying Amount of Building and Improvements 8,335      
Accumulated Depreciation 1,644      
Triple-net | Hattiesburg, MS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 450      
Initial Cost of Building & Improvements 13,469      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 450      
Carrying Amount of Building and Improvements 13,469      
Accumulated Depreciation 3,467      
Triple-net | Hemet, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,224      
Initial Cost of Building & Improvements 8,410      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 6,224      
Carrying Amount of Building and Improvements 8,410      
Accumulated Depreciation 575      
Triple-net | Henry, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,860      
Initial Cost of Building & Improvements 3,688      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,860      
Carrying Amount of Building and Improvements 3,688      
Accumulated Depreciation 239      
Triple-net | Hermitage, TN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,500      
Initial Cost of Building & Improvements 9,943      
Cost Capitalized Subsequent to Acquisition 540      
Carrying Amount of Land 1,500      
Carrying Amount of Building and Improvements 10,483      
Accumulated Depreciation 2,470      
Triple-net | Herne Bay, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,900      
Initial Cost of Building & Improvements 24,353      
Cost Capitalized Subsequent to Acquisition 3,585      
Carrying Amount of Land 2,104      
Carrying Amount of Building and Improvements 27,734      
Accumulated Depreciation 5,757      
Triple-net | Hiawatha, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 40      
Initial Cost of Building & Improvements 4,210      
Cost Capitalized Subsequent to Acquisition 29      
Carrying Amount of Land 40      
Carrying Amount of Building and Improvements 4,239      
Accumulated Depreciation 619      
Triple-net | Hickory, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Building & Improvements 987      
Cost Capitalized Subsequent to Acquisition 374      
Carrying Amount of Land 290      
Carrying Amount of Building and Improvements 1,361      
Accumulated Depreciation 696      
Triple-net | High Point, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 560      
Initial Cost of Building & Improvements 4,443      
Cost Capitalized Subsequent to Acquisition 894      
Carrying Amount of Land 560      
Carrying Amount of Building and Improvements 5,337      
Accumulated Depreciation 2,450      
Triple-net | High Point, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 370      
Initial Cost of Building & Improvements 2,185      
Cost Capitalized Subsequent to Acquisition 464      
Carrying Amount of Land 370      
Carrying Amount of Building and Improvements 2,649      
Accumulated Depreciation 1,265      
Triple-net | High Point, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 330      
Initial Cost of Building & Improvements 3,395      
Cost Capitalized Subsequent to Acquisition 126      
Carrying Amount of Land 330      
Carrying Amount of Building and Improvements 3,521      
Accumulated Depreciation 1,609      
Triple-net | High Point, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 430      
Initial Cost of Building & Improvements 4,143      
Cost Capitalized Subsequent to Acquisition 186      
Carrying Amount of Land 430      
Carrying Amount of Building and Improvements 4,329      
Accumulated Depreciation 1,937      
Triple-net | Highlands Ranch, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 940      
Initial Cost of Building & Improvements 3,721      
Cost Capitalized Subsequent to Acquisition 4,983      
Carrying Amount of Land 940      
Carrying Amount of Building and Improvements 8,704      
Accumulated Depreciation 2,728      
Triple-net | Hillsboro, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,792      
Initial Cost of Building & Improvements 6,339      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,792      
Carrying Amount of Building and Improvements 6,339      
Accumulated Depreciation 589      
Triple-net | Hinckley, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,159      
Initial Cost of Building & Improvements 4,194      
Cost Capitalized Subsequent to Acquisition 682      
Carrying Amount of Land 2,391      
Carrying Amount of Building and Improvements 4,644      
Accumulated Depreciation 1,003      
Triple-net | Hinsdale, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,033      
Initial Cost of Building & Improvements 24,280      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,033      
Carrying Amount of Building and Improvements 24,280      
Accumulated Depreciation 1,517      
Triple-net | Hockessin, DE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,120      
Initial Cost of Building & Improvements 6,308      
Cost Capitalized Subsequent to Acquisition 1,247      
Carrying Amount of Land 1,120      
Carrying Amount of Building and Improvements 7,555      
Accumulated Depreciation 1,385      
Triple-net | Holton, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 40      
Initial Cost of Building & Improvements 7,460      
Cost Capitalized Subsequent to Acquisition 13      
Carrying Amount of Land 40      
Carrying Amount of Building and Improvements 7,473      
Accumulated Depreciation 1,018      
Triple-net | Homewood, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,395      
Initial Cost of Building & Improvements 7,649      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,395      
Carrying Amount of Building and Improvements 7,649      
Accumulated Depreciation 489      
Triple-net | Howard, WI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 579      
Initial Cost of Building & Improvements 32,122      
Cost Capitalized Subsequent to Acquisition 3,072      
Carrying Amount of Land 633      
Carrying Amount of Building and Improvements 35,140      
Accumulated Depreciation 3,268      
Triple-net | Huntingdon Valley, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,150      
Initial Cost of Building & Improvements 3,728      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,150      
Carrying Amount of Building and Improvements 3,728      
Accumulated Depreciation 355      
Triple-net | Hutchinson, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 600      
Initial Cost of Building & Improvements 10,590      
Cost Capitalized Subsequent to Acquisition 397      
Carrying Amount of Land 600      
Carrying Amount of Building and Improvements 10,987      
Accumulated Depreciation 4,525      
Triple-net | Independence, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,082      
Initial Cost of Building & Improvements 6,767      
Cost Capitalized Subsequent to Acquisition 7      
Carrying Amount of Land 1,082      
Carrying Amount of Building and Improvements 6,774      
Accumulated Depreciation 1,221      
Triple-net | Indianapolis, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 870      
Initial Cost of Building & Improvements 14,688      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 870      
Carrying Amount of Building and Improvements 14,688      
Accumulated Depreciation 2,729      
Triple-net | Indianapolis, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,105      
Initial Cost of Building & Improvements 6,642      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,105      
Carrying Amount of Building and Improvements 6,642      
Accumulated Depreciation 428      
Triple-net | Jackson, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,500      
Initial Cost of Building & Improvements 26,405      
Cost Capitalized Subsequent to Acquisition 3,107      
Carrying Amount of Land 6,500      
Carrying Amount of Building and Improvements 29,512      
Accumulated Depreciation 6,091      
Triple-net | Jacksonville, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 750      
Initial Cost of Building & Improvements 25,231      
Cost Capitalized Subsequent to Acquisition 115      
Carrying Amount of Land 750      
Carrying Amount of Building and Improvements 25,346      
Accumulated Depreciation 2,963      
Triple-net | Jacksonville, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 26,381      
Cost Capitalized Subsequent to Acquisition 1,805      
Carrying Amount of Land 1,691      
Carrying Amount of Building and Improvements 26,495      
Accumulated Depreciation 3,092      
Triple-net | Jacksonville, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,752      
Initial Cost of Building & Improvements 2,552      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,752      
Carrying Amount of Building and Improvements 2,552      
Accumulated Depreciation 173      
Triple-net | Jacksonville, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,182      
Initial Cost of Building & Improvements 9,488      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,182      
Carrying Amount of Building and Improvements 9,488      
Accumulated Depreciation 689      
Triple-net | Jefferson Hills, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,265      
Initial Cost of Building & Improvements 13,614      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,265      
Carrying Amount of Building and Improvements 13,614      
Accumulated Depreciation 1,309      
Triple-net | Jersey Shore, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 600      
Initial Cost of Building & Improvements 8,104      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 600      
Carrying Amount of Building and Improvements 8,104      
Accumulated Depreciation 499      
Triple-net | Kansas City, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 700      
Initial Cost of Building & Improvements 20,115      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 700      
Carrying Amount of Building and Improvements 20,115      
Accumulated Depreciation 2,890      
Triple-net | Katy, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,778      
Initial Cost of Building & Improvements 22,622      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,778      
Carrying Amount of Building and Improvements 22,622      
Accumulated Depreciation 2,366      
Triple-net | Kensington, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,753      
Initial Cost of Building & Improvements 18,621      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,753      
Carrying Amount of Building and Improvements 18,621      
Accumulated Depreciation 1,186      
Triple-net | Kenwood, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 821      
Initial Cost of Building & Improvements 11,040      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 821      
Carrying Amount of Building and Improvements 11,040      
Accumulated Depreciation 727      
Triple-net | Kettering, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,229      
Initial Cost of Building & Improvements 4,701      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,229      
Carrying Amount of Building and Improvements 4,701      
Accumulated Depreciation 352      
Triple-net | King of Prussia, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 720      
Initial Cost of Building & Improvements 14,776      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 720      
Carrying Amount of Building and Improvements 14,776      
Accumulated Depreciation 1,009      
Triple-net | King of Prussia, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,205      
Initial Cost of Building & Improvements 4,725      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,205      
Carrying Amount of Building and Improvements 4,725      
Accumulated Depreciation 381      
Triple-net | Kingsford, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,362      
Initial Cost of Building & Improvements 10,594      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,362      
Carrying Amount of Building and Improvements 10,594      
Accumulated Depreciation 727      
Triple-net | Kingston, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 986      
Initial Cost of Building & Improvements 5,710      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 986      
Carrying Amount of Building and Improvements 5,710      
Accumulated Depreciation 382      
Triple-net | Kirkstall, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,437      
Initial Cost of Building & Improvements 9,414      
Cost Capitalized Subsequent to Acquisition 1,272      
Carrying Amount of Land 2,698      
Carrying Amount of Building and Improvements 10,425      
Accumulated Depreciation 2,047      
Triple-net | Kokomo, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 710      
Initial Cost of Building & Improvements 16,044      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 710      
Carrying Amount of Building and Improvements 16,044      
Accumulated Depreciation 2,974      
Triple-net | Lacey, WA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,582      
Initial Cost of Building & Improvements 18,175      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,582      
Carrying Amount of Building and Improvements 18,175      
Accumulated Depreciation 1,175      
Triple-net | Lafayette, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,420      
Initial Cost of Building & Improvements 20,192      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,420      
Carrying Amount of Building and Improvements 20,192      
Accumulated Depreciation 3,143      
Triple-net | Lafayette, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 670      
Initial Cost of Building & Improvements 16,833      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 670      
Carrying Amount of Building and Improvements 16,834      
Accumulated Depreciation 2,866      
Triple-net | Lakeway, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 5,142      
Initial Cost of Building & Improvements 23,203      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 5,142      
Carrying Amount of Building and Improvements 23,203      
Accumulated Depreciation 4,717      
Triple-net | Lakewood, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,160      
Initial Cost of Building & Improvements 28,091      
Cost Capitalized Subsequent to Acquisition 62      
Carrying Amount of Land 2,160      
Carrying Amount of Building and Improvements 28,153      
Accumulated Depreciation 5,037      
Triple-net | Lakewood Ranch, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 650      
Initial Cost of Building & Improvements 6,714      
Cost Capitalized Subsequent to Acquisition 1,988      
Carrying Amount of Land 650      
Carrying Amount of Building and Improvements 8,702      
Accumulated Depreciation 1,939      
Triple-net | Lakewood Ranch, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,000      
Initial Cost of Building & Improvements 22,388      
Cost Capitalized Subsequent to Acquisition 89      
Carrying Amount of Land 1,000      
Carrying Amount of Building and Improvements 22,477      
Accumulated Depreciation 5,000      
Triple-net | Lancaster, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,680      
Initial Cost of Building & Improvements 14,039      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,680      
Carrying Amount of Building and Improvements 14,039      
Accumulated Depreciation 1,557      
Triple-net | Lancaster, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,011      
Initial Cost of Building & Improvements 7,502      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,011      
Carrying Amount of Building and Improvements 7,502      
Accumulated Depreciation 502      
Triple-net | Lapeer, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 10,621      
Carrying Amount of Land 1,827      
Carrying Amount of Building and Improvements 8,794      
Accumulated Depreciation 65      
Triple-net | Largo, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,166      
Initial Cost of Building & Improvements 3,426      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,166      
Carrying Amount of Building and Improvements 3,426      
Accumulated Depreciation 296      
Triple-net | Las Vegas, NV        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 580      
Initial Cost of Building & Improvements 23,420      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 580      
Carrying Amount of Building and Improvements 23,420      
Accumulated Depreciation 5,846      
Triple-net | Laureldale, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,171      
Initial Cost of Building & Improvements 14,420      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,171      
Carrying Amount of Building and Improvements 14,420      
Accumulated Depreciation 931      
Triple-net | Lawrence, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 250      
Initial Cost of Building & Improvements 8,716      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 250      
Carrying Amount of Building and Improvements 8,716      
Accumulated Depreciation 1,923      
Triple-net | Lebanon, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 728      
Initial Cost of Building & Improvements 10,367      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 728      
Carrying Amount of Building and Improvements 10,367      
Accumulated Depreciation 733      
Triple-net | Lebanon, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,214      
Initial Cost of Building & Improvements 5,960      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,214      
Carrying Amount of Building and Improvements 5,960      
Accumulated Depreciation 473      
Triple-net | Lee, MA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Building & Improvements 18,135      
Cost Capitalized Subsequent to Acquisition 926      
Carrying Amount of Land 290      
Carrying Amount of Building and Improvements 19,061      
Accumulated Depreciation 9,316      
Triple-net | Leeds, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,974      
Initial Cost of Building & Improvements 13,239      
Cost Capitalized Subsequent to Acquisition 1,634      
Carrying Amount of Land 2,186      
Carrying Amount of Building and Improvements 14,661      
Accumulated Depreciation 2,160      
Triple-net | Leicester, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,060      
Initial Cost of Building & Improvements 24,410      
Cost Capitalized Subsequent to Acquisition 2,950      
Carrying Amount of Land 3,388      
Carrying Amount of Building and Improvements 27,032      
Accumulated Depreciation 5,645      
Triple-net | Lenoir, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 190      
Initial Cost of Building & Improvements 3,748      
Cost Capitalized Subsequent to Acquisition 920      
Carrying Amount of Land 190      
Carrying Amount of Building and Improvements 4,668      
Accumulated Depreciation 2,047      
Triple-net | Lethbridge, AB        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 1,245      
Initial Cost of Land 1,214      
Initial Cost of Building & Improvements 2,750      
Cost Capitalized Subsequent to Acquisition 347      
Carrying Amount of Land 1,317      
Carrying Amount of Building and Improvements 2,994      
Accumulated Depreciation 674      
Triple-net | Lexana, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 480      
Initial Cost of Building & Improvements 1,770      
Cost Capitalized Subsequent to Acquisition 152      
Carrying Amount of Land 480      
Carrying Amount of Building and Improvements 1,922      
Accumulated Depreciation 311      
Triple-net | Lexington, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Building & Improvements 3,900      
Cost Capitalized Subsequent to Acquisition 1,123      
Carrying Amount of Land 200      
Carrying Amount of Building and Improvements 5,023      
Accumulated Depreciation 2,359      
Triple-net | Libertyville, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,500      
Initial Cost of Building & Improvements 40,024      
Cost Capitalized Subsequent to Acquisition 75      
Carrying Amount of Land 6,500      
Carrying Amount of Building and Improvements 40,099      
Accumulated Depreciation 10,693      
Triple-net | Libertyville, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,993      
Initial Cost of Building & Improvements 11,546      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,993      
Carrying Amount of Building and Improvements 11,546      
Accumulated Depreciation 732      
Triple-net | Lichfield, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,382      
Initial Cost of Building & Improvements 30,324      
Cost Capitalized Subsequent to Acquisition 3,405      
Carrying Amount of Land 1,530      
Carrying Amount of Building and Improvements 33,581      
Accumulated Depreciation 4,959      
Triple-net | Lillington, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 470      
Initial Cost of Building & Improvements 17,579      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 470      
Carrying Amount of Building and Improvements 17,579      
Accumulated Depreciation 3,140      
Triple-net | Lillington, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 500      
Initial Cost of Building & Improvements 16,451      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 500      
Carrying Amount of Building and Improvements 16,451      
Accumulated Depreciation 2,759      
Triple-net | Lincoln, NE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 390      
Initial Cost of Building & Improvements 13,807      
Cost Capitalized Subsequent to Acquisition 95      
Carrying Amount of Land 390      
Carrying Amount of Building and Improvements 13,902      
Accumulated Depreciation 3,884      
Triple-net | Lititz, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,200      
Initial Cost of Building & Improvements 13,836      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,200      
Carrying Amount of Building and Improvements 13,836      
Accumulated Depreciation 1,537      
Triple-net | Livermore, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,100      
Initial Cost of Building & Improvements 24,996      
Cost Capitalized Subsequent to Acquisition 79      
Carrying Amount of Land 4,100      
Carrying Amount of Building and Improvements 25,075      
Accumulated Depreciation 3,910      
Triple-net | Livonia, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 985      
Initial Cost of Building & Improvements 13,555      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 985      
Carrying Amount of Building and Improvements 13,555      
Accumulated Depreciation 924      
Triple-net | Livonia, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,836      
Initial Cost of Building & Improvements 2,277      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,836      
Carrying Amount of Building and Improvements 2,277      
Accumulated Depreciation 185      
Triple-net | Longwood, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,260      
Initial Cost of Building & Improvements 6,445      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,260      
Carrying Amount of Building and Improvements 6,445      
Accumulated Depreciation 1,742      
Triple-net | Los Angeles, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 11,430      
Cost Capitalized Subsequent to Acquisition 1,058      
Carrying Amount of Land 0      
Carrying Amount of Building and Improvements 12,488      
Accumulated Depreciation 3,719      
Triple-net | Louisburg, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 280      
Initial Cost of Building & Improvements 4,320      
Cost Capitalized Subsequent to Acquisition 44      
Carrying Amount of Land 280      
Carrying Amount of Building and Improvements 4,364      
Accumulated Depreciation 601      
Triple-net | Louisville, KY        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 490      
Initial Cost of Building & Improvements 10,010      
Cost Capitalized Subsequent to Acquisition 2,768      
Carrying Amount of Land 490      
Carrying Amount of Building and Improvements 12,778      
Accumulated Depreciation 5,419      
Triple-net | Loxley, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,369      
Initial Cost of Building & Improvements 15,668      
Cost Capitalized Subsequent to Acquisition 2,636      
Carrying Amount of Land 1,516      
Carrying Amount of Building and Improvements 18,157      
Accumulated Depreciation 3,551      
Triple-net | Lutherville, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,100      
Initial Cost of Building & Improvements 19,786      
Cost Capitalized Subsequent to Acquisition 1,744      
Carrying Amount of Land 1,100      
Carrying Amount of Building and Improvements 21,530      
Accumulated Depreciation 5,663      
Triple-net | Lynchburg, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 340      
Initial Cost of Building & Improvements 16,114      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 340      
Carrying Amount of Building and Improvements 16,114      
Accumulated Depreciation 2,923      
Triple-net | Lynchburg, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,904      
Initial Cost of Building & Improvements 3,696      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,904      
Carrying Amount of Building and Improvements 3,696      
Accumulated Depreciation 244      
Triple-net | Lynnwood, WA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,302      
Initial Cost of Building & Improvements 5,632      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,302      
Carrying Amount of Building and Improvements 5,632      
Accumulated Depreciation 378      
Triple-net | Macomb, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,586      
Initial Cost of Building & Improvements 4,058      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,586      
Carrying Amount of Building and Improvements 4,058      
Accumulated Depreciation 260      
Triple-net | Macungie, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 960      
Initial Cost of Building & Improvements 29,033      
Cost Capitalized Subsequent to Acquisition 84      
Carrying Amount of Land 960      
Carrying Amount of Building and Improvements 29,117      
Accumulated Depreciation 7,618      
Triple-net | Manalapan, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 900      
Initial Cost of Building & Improvements 22,624      
Cost Capitalized Subsequent to Acquisition 760      
Carrying Amount of Land 900      
Carrying Amount of Building and Improvements 23,384      
Accumulated Depreciation 5,745      
Triple-net | Manassas, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 750      
Initial Cost of Building & Improvements 7,446      
Cost Capitalized Subsequent to Acquisition 1,103      
Carrying Amount of Land 750      
Carrying Amount of Building and Improvements 8,549      
Accumulated Depreciation 3,484      
Triple-net | Mankato, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,460      
Initial Cost of Building & Improvements 32,104      
Cost Capitalized Subsequent to Acquisition 300      
Carrying Amount of Land 1,460      
Carrying Amount of Building and Improvements 32,404      
Accumulated Depreciation 4,285      
Triple-net | Marietta, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,149      
Initial Cost of Building & Improvements 9,373      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,149      
Carrying Amount of Building and Improvements 9,373      
Accumulated Depreciation 614      
Triple-net | Marietta, GA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,406      
Initial Cost of Building & Improvements 12,229      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,406      
Carrying Amount of Building and Improvements 12,229      
Accumulated Depreciation 784      
Triple-net | Marietta, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,050      
Initial Cost of Building & Improvements 13,633      
Cost Capitalized Subsequent to Acquisition 537      
Carrying Amount of Land 1,050      
Carrying Amount of Building and Improvements 14,170      
Accumulated Depreciation 1,944      
Triple-net | Marion, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 720      
Initial Cost of Building & Improvements 9,604      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 720      
Carrying Amount of Building and Improvements 9,604      
Accumulated Depreciation 2,465      
Triple-net | Marion, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 990      
Initial Cost of Building & Improvements 9,190      
Cost Capitalized Subsequent to Acquisition 824      
Carrying Amount of Land 990      
Carrying Amount of Building and Improvements 10,014      
Accumulated Depreciation 2,322      
Triple-net | Marion, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,768      
Initial Cost of Building & Improvements 17,415      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,768      
Carrying Amount of Building and Improvements 17,415      
Accumulated Depreciation 1,453      
Triple-net | Marlborough, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,677      
Initial Cost of Building & Improvements 6,822      
Cost Capitalized Subsequent to Acquisition 1,021      
Carrying Amount of Land 2,965      
Carrying Amount of Building and Improvements 7,555      
Accumulated Depreciation 1,240      
Triple-net | Martinsville, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 349      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 349      
Carrying Amount of Building and Improvements 0      
Accumulated Depreciation 0      
Triple-net | Matawan, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,830      
Initial Cost of Building & Improvements 20,618      
Cost Capitalized Subsequent to Acquisition 166      
Carrying Amount of Land 1,830      
Carrying Amount of Building and Improvements 20,784      
Accumulated Depreciation 5,370      
Triple-net | Matthews, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 560      
Initial Cost of Building & Improvements 4,738      
Cost Capitalized Subsequent to Acquisition 137      
Carrying Amount of Land 560      
Carrying Amount of Building and Improvements 4,875      
Accumulated Depreciation 2,252      
Triple-net | McHenry, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,576      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,576      
Carrying Amount of Building and Improvements 0      
Accumulated Depreciation 0      
Triple-net | McMurray, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,440      
Initial Cost of Building & Improvements 15,805      
Cost Capitalized Subsequent to Acquisition 3,894      
Carrying Amount of Land 1,440      
Carrying Amount of Building and Improvements 19,699      
Accumulated Depreciation 4,738      
Triple-net | Medicine Hat, AB        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 2,046      
Initial Cost of Land 932      
Initial Cost of Building & Improvements 5,566      
Cost Capitalized Subsequent to Acquisition 564      
Carrying Amount of Land 1,012      
Carrying Amount of Building and Improvements 6,050      
Accumulated Depreciation 1,082      
Triple-net | Mentor, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,827      
Initial Cost of Building & Improvements 9,938      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,827      
Carrying Amount of Building and Improvements 9,938      
Accumulated Depreciation 660      
Triple-net | Mercerville, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 860      
Initial Cost of Building & Improvements 9,929      
Cost Capitalized Subsequent to Acquisition 173      
Carrying Amount of Land 860      
Carrying Amount of Building and Improvements 10,102      
Accumulated Depreciation 2,922      
Triple-net | Meriden, CT        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,300      
Initial Cost of Building & Improvements 1,472      
Cost Capitalized Subsequent to Acquisition 233      
Carrying Amount of Land 1,300      
Carrying Amount of Building and Improvements 1,705      
Accumulated Depreciation 961      
Triple-net | Miamisburg, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 786      
Initial Cost of Building & Improvements 3,232      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 786      
Carrying Amount of Building and Improvements 3,232      
Accumulated Depreciation 303      
Triple-net | Middleburg Heights, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 960      
Initial Cost of Building & Improvements 7,780      
Cost Capitalized Subsequent to Acquisition 472      
Carrying Amount of Land 960      
Carrying Amount of Building and Improvements 8,252      
Accumulated Depreciation 3,326      
Triple-net | Middleton, WI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 420      
Initial Cost of Building & Improvements 4,006      
Cost Capitalized Subsequent to Acquisition 600      
Carrying Amount of Land 420      
Carrying Amount of Building and Improvements 4,606      
Accumulated Depreciation 2,141      
Triple-net | Milton Keynes, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,826      
Initial Cost of Building & Improvements 18,654      
Cost Capitalized Subsequent to Acquisition 2,199      
Carrying Amount of Land 2,022      
Carrying Amount of Building and Improvements 20,657      
Accumulated Depreciation 3,141      
Triple-net | Minnetonka, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,080      
Initial Cost of Building & Improvements 24,360      
Cost Capitalized Subsequent to Acquisition 1,806      
Carrying Amount of Land 2,080      
Carrying Amount of Building and Improvements 26,166      
Accumulated Depreciation 6,883      
Triple-net | Mishawaka, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 740      
Initial Cost of Building & Improvements 10,698      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 740      
Carrying Amount of Building and Improvements 10,698      
Accumulated Depreciation 3,023      
Triple-net | Moline, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,946      
Initial Cost of Building & Improvements 18,672      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,946      
Carrying Amount of Building and Improvements 18,672      
Accumulated Depreciation 1,158      
Triple-net | Monmouth Junction, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 720      
Initial Cost of Building & Improvements 6,209      
Cost Capitalized Subsequent to Acquisition 86      
Carrying Amount of Land 720      
Carrying Amount of Building and Improvements 6,295      
Accumulated Depreciation 1,919      
Triple-net | Monroe, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 470      
Initial Cost of Building & Improvements 3,681      
Cost Capitalized Subsequent to Acquisition 839      
Carrying Amount of Land 470      
Carrying Amount of Building and Improvements 4,520      
Accumulated Depreciation 2,050      
Triple-net | Monroe, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 310      
Initial Cost of Building & Improvements 4,799      
Cost Capitalized Subsequent to Acquisition 922      
Carrying Amount of Land 310      
Carrying Amount of Building and Improvements 5,721      
Accumulated Depreciation 2,585      
Triple-net | Monroe, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 450      
Initial Cost of Building & Improvements 4,021      
Cost Capitalized Subsequent to Acquisition 386      
Carrying Amount of Land 450      
Carrying Amount of Building and Improvements 4,407      
Accumulated Depreciation 1,955      
Triple-net | Monroe Township, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,250      
Initial Cost of Building & Improvements 27,771      
Cost Capitalized Subsequent to Acquisition 765      
Carrying Amount of Land 3,250      
Carrying Amount of Building and Improvements 28,536      
Accumulated Depreciation 3,767      
Triple-net | Monroeville, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,216      
Initial Cost of Building & Improvements 12,749      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,216      
Carrying Amount of Building and Improvements 12,749      
Accumulated Depreciation 1,006      
Triple-net | Monroeville, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,237      
Initial Cost of Building & Improvements 3,641      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,237      
Carrying Amount of Building and Improvements 3,641      
Accumulated Depreciation 383      
Triple-net | Montgomeryville, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,176      
Initial Cost of Building & Improvements 9,824      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,176      
Carrying Amount of Building and Improvements 9,824      
Accumulated Depreciation 686      
Triple-net | Montville, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,500      
Initial Cost of Building & Improvements 31,002      
Cost Capitalized Subsequent to Acquisition 1,699      
Carrying Amount of Land 3,500      
Carrying Amount of Building and Improvements 32,701      
Accumulated Depreciation 8,126      
Triple-net | Moorestown, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,143      
Initial Cost of Building & Improvements 23,902      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,143      
Carrying Amount of Building and Improvements 23,902      
Accumulated Depreciation 4,655      
Triple-net | Morehead City, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Building & Improvements 3,104      
Cost Capitalized Subsequent to Acquisition 1,787      
Carrying Amount of Land 200      
Carrying Amount of Building and Improvements 4,891      
Accumulated Depreciation 2,483      
Triple-net | Morrison, CO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,720      
Initial Cost of Building & Improvements 16,261      
Cost Capitalized Subsequent to Acquisition 17      
Carrying Amount of Land 2,720      
Carrying Amount of Building and Improvements 16,278      
Accumulated Depreciation 1,983      
Triple-net | Moulton, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,695      
Initial Cost of Building & Improvements 12,510      
Cost Capitalized Subsequent to Acquisition 2,079      
Carrying Amount of Land 1,711      
Carrying Amount of Building and Improvements 14,573      
Accumulated Depreciation 1,368      
Triple-net | Mountainside, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,097      
Initial Cost of Building & Improvements 7,807      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,097      
Carrying Amount of Building and Improvements 7,807      
Accumulated Depreciation 525      
Triple-net | Mt. Pleasant, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 8,330      
Carrying Amount of Land 1,863      
Carrying Amount of Building and Improvements 6,467      
Accumulated Depreciation 57      
Triple-net | Naperville, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,470      
Initial Cost of Building & Improvements 29,547      
Cost Capitalized Subsequent to Acquisition 62      
Carrying Amount of Land 3,470      
Carrying Amount of Building and Improvements 29,609      
Accumulated Depreciation 8,046      
Triple-net | Naples, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,222      
Initial Cost of Building & Improvements 10,639      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,222      
Carrying Amount of Building and Improvements 10,639      
Accumulated Depreciation 749      
Triple-net | Naples, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,672      
Initial Cost of Building & Improvements 23,119      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,672      
Carrying Amount of Building and Improvements 23,119      
Accumulated Depreciation 1,813      
Triple-net | Naples, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,854      
Initial Cost of Building & Improvements 12,398      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,854      
Carrying Amount of Building and Improvements 12,398      
Accumulated Depreciation 786      
Triple-net | Nashville, TN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,910      
Initial Cost of Building & Improvements 29,590      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,910      
Carrying Amount of Building and Improvements 29,590      
Accumulated Depreciation 9,905      
Triple-net | Naugatuck, CT        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,200      
Initial Cost of Building & Improvements 15,826      
Cost Capitalized Subsequent to Acquisition 199      
Carrying Amount of Land 1,200      
Carrying Amount of Building and Improvements 16,025      
Accumulated Depreciation 4,382      
Triple-net | Needham, MA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,610      
Initial Cost of Building & Improvements 12,667      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,610      
Carrying Amount of Building and Improvements 12,667      
Accumulated Depreciation 5,960      
Triple-net | New Lenox, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,225      
Initial Cost of Building & Improvements 21,575      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,225      
Carrying Amount of Building and Improvements 21,575      
Accumulated Depreciation 1,067      
Triple-net | New Moston, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,480      
Initial Cost of Building & Improvements 4,378      
Cost Capitalized Subsequent to Acquisition 630      
Carrying Amount of Land 1,639      
Carrying Amount of Building and Improvements 4,849      
Accumulated Depreciation 991      
Triple-net | Newark, DE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 560      
Initial Cost of Building & Improvements 21,220      
Cost Capitalized Subsequent to Acquisition 2,442      
Carrying Amount of Land 560      
Carrying Amount of Building and Improvements 23,662      
Accumulated Depreciation 9,189      
Triple-net | Newcastle Under Lyme, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,110      
Initial Cost of Building & Improvements 5,655      
Cost Capitalized Subsequent to Acquisition 728      
Carrying Amount of Land 1,230      
Carrying Amount of Building and Improvements 6,263      
Accumulated Depreciation 1,223      
Triple-net | Newcastle-under-Lyme, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,125      
Initial Cost of Building & Improvements 5,537      
Cost Capitalized Subsequent to Acquisition 716      
Carrying Amount of Land 1,246      
Carrying Amount of Building and Improvements 6,132      
Accumulated Depreciation 1,006      
Triple-net | Newport News, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 839      
Initial Cost of Building & Improvements 6,077      
Cost Capitalized Subsequent to Acquisition 6      
Carrying Amount of Land 839      
Carrying Amount of Building and Improvements 6,083      
Accumulated Depreciation 1,071      
Triple-net | Norman, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 55      
Initial Cost of Building & Improvements 1,484      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 55      
Carrying Amount of Building and Improvements 1,484      
Accumulated Depreciation 1,000      
Triple-net | Norman, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,480      
Initial Cost of Building & Improvements 33,330      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,480      
Carrying Amount of Building and Improvements 33,330      
Accumulated Depreciation 7,285      
Triple-net | North Augusta, SC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 332      
Initial Cost of Building & Improvements 2,558      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 332      
Carrying Amount of Building and Improvements 2,558      
Accumulated Depreciation 1,467      
Triple-net | North Cape May, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 77      
Initial Cost of Building & Improvements 151      
Cost Capitalized Subsequent to Acquisition 4,294      
Carrying Amount of Land 77      
Carrying Amount of Building and Improvements 4,445      
Accumulated Depreciation 328      
Triple-net | Northampton, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 5,182      
Initial Cost of Building & Improvements 17,348      
Cost Capitalized Subsequent to Acquisition 2,420      
Carrying Amount of Land 5,738      
Carrying Amount of Building and Improvements 19,212      
Accumulated Depreciation 3,900      
Triple-net | Northampton, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,013      
Initial Cost of Building & Improvements 6,257      
Cost Capitalized Subsequent to Acquisition 889      
Carrying Amount of Land 2,230      
Carrying Amount of Building and Improvements 6,929      
Accumulated Depreciation 1,068      
Triple-net | Northbrook, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,298      
Initial Cost of Building & Improvements 13,337      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,298      
Carrying Amount of Building and Improvements 13,337      
Accumulated Depreciation 866      
Triple-net | Nuneaton, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,325      
Initial Cost of Building & Improvements 8,983      
Cost Capitalized Subsequent to Acquisition 1,321      
Carrying Amount of Land 3,682      
Carrying Amount of Building and Improvements 9,947      
Accumulated Depreciation 1,944      
Triple-net | Nuthall, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,628      
Initial Cost of Building & Improvements 6,263      
Cost Capitalized Subsequent to Acquisition 848      
Carrying Amount of Land 1,803      
Carrying Amount of Building and Improvements 6,936      
Accumulated Depreciation 1,055      
Triple-net | Nuthall, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,498      
Initial Cost of Building & Improvements 10,436      
Cost Capitalized Subsequent to Acquisition 1,390      
Carrying Amount of Land 2,767      
Carrying Amount of Building and Improvements 11,557      
Accumulated Depreciation 2,282      
Triple-net | Oak Lawn, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,418      
Initial Cost of Building & Improvements 5,426      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,418      
Carrying Amount of Building and Improvements 5,426      
Accumulated Depreciation 350      
Triple-net | Oak Lawn, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,876      
Initial Cost of Building & Improvements 7,985      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,876      
Carrying Amount of Building and Improvements 7,985      
Accumulated Depreciation 534      
Triple-net | Oakland, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,760      
Initial Cost of Building & Improvements 16,143      
Cost Capitalized Subsequent to Acquisition 282      
Carrying Amount of Land 4,760      
Carrying Amount of Building and Improvements 16,425      
Accumulated Depreciation 2,808      
Triple-net | Ocala, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,340      
Initial Cost of Building & Improvements 10,564      
Cost Capitalized Subsequent to Acquisition 105      
Carrying Amount of Land 1,340      
Carrying Amount of Building and Improvements 10,669      
Accumulated Depreciation 3,369      
Triple-net | Oklahoma City, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 590      
Initial Cost of Building & Improvements 7,513      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 590      
Carrying Amount of Building and Improvements 7,513      
Accumulated Depreciation 2,589      
Triple-net | Oklahoma City, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 760      
Initial Cost of Building & Improvements 7,017      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 760      
Carrying Amount of Building and Improvements 7,017      
Accumulated Depreciation 2,401      
Triple-net | Oklahoma City, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 17,862      
Carrying Amount of Land 1,590      
Carrying Amount of Building and Improvements 16,272      
Accumulated Depreciation 563      
Triple-net | Olathe, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,930      
Initial Cost of Building & Improvements 19,765      
Cost Capitalized Subsequent to Acquisition 553      
Carrying Amount of Land 1,930      
Carrying Amount of Building and Improvements 20,318      
Accumulated Depreciation 2,998      
Triple-net | Omaha, NE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 370      
Initial Cost of Building & Improvements 10,230      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 370      
Carrying Amount of Building and Improvements 10,230      
Accumulated Depreciation 2,916      
Triple-net | Omaha, NE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 380      
Initial Cost of Building & Improvements 8,769      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 380      
Carrying Amount of Building and Improvements 8,769      
Accumulated Depreciation 2,641      
Triple-net | Ona, WV        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 950      
Initial Cost of Building & Improvements 7,460      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 950      
Carrying Amount of Building and Improvements 7,460      
Accumulated Depreciation 2,049      
Triple-net | Oneonta, NY        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 80      
Initial Cost of Building & Improvements 5,020      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 80      
Carrying Amount of Building and Improvements 5,020      
Accumulated Depreciation 1,697      
Triple-net | Orange Park, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,201      
Initial Cost of Building & Improvements 4,016      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,201      
Carrying Amount of Building and Improvements 4,016      
Accumulated Depreciation 361      
Triple-net | Orem, UT        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,150      
Initial Cost of Building & Improvements 24,107      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,150      
Carrying Amount of Building and Improvements 24,107      
Accumulated Depreciation 3,264      
Triple-net | Osage City, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 50      
Initial Cost of Building & Improvements 1,700      
Cost Capitalized Subsequent to Acquisition 142      
Carrying Amount of Land 50      
Carrying Amount of Building and Improvements 1,842      
Accumulated Depreciation 311      
Triple-net | Osawatomie, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 130      
Initial Cost of Building & Improvements 2,970      
Cost Capitalized Subsequent to Acquisition 136      
Carrying Amount of Land 130      
Carrying Amount of Building and Improvements 3,106      
Accumulated Depreciation 477      
Triple-net | Ottawa, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 160      
Initial Cost of Building & Improvements 6,590      
Cost Capitalized Subsequent to Acquisition 44      
Carrying Amount of Land 160      
Carrying Amount of Building and Improvements 6,634      
Accumulated Depreciation 928      
Triple-net | Overland Park, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,500      
Initial Cost of Building & Improvements 29,105      
Cost Capitalized Subsequent to Acquisition 38,441      
Carrying Amount of Land 8,230      
Carrying Amount of Building and Improvements 63,816      
Accumulated Depreciation 19,060      
Triple-net | Overland Park, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 410      
Initial Cost of Building & Improvements 2,840      
Cost Capitalized Subsequent to Acquisition 92      
Carrying Amount of Land 410      
Carrying Amount of Building and Improvements 2,932      
Accumulated Depreciation 469      
Triple-net | Overland Park, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,300      
Initial Cost of Building & Improvements 25,311      
Cost Capitalized Subsequent to Acquisition 677      
Carrying Amount of Land 1,300      
Carrying Amount of Building and Improvements 25,988      
Accumulated Depreciation 3,760      
Triple-net | Owasso, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 215      
Initial Cost of Building & Improvements 1,380      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 215      
Carrying Amount of Building and Improvements 1,380      
Accumulated Depreciation 866      
Triple-net | Owensboro, KY        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 225      
Initial Cost of Building & Improvements 13,275      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 225      
Carrying Amount of Building and Improvements 13,275      
Accumulated Depreciation 5,736      
Triple-net | Owenton, KY        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 100      
Initial Cost of Building & Improvements 2,400      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 100      
Carrying Amount of Building and Improvements 2,400      
Accumulated Depreciation 1,206      
Triple-net | Palm Beach Gardens, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,082      
Initial Cost of Building & Improvements 6,622      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,082      
Carrying Amount of Building and Improvements 6,622      
Accumulated Depreciation 490      
Triple-net | Palm Coast, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 870      
Initial Cost of Building & Improvements 10,957      
Cost Capitalized Subsequent to Acquisition 102      
Carrying Amount of Land 870      
Carrying Amount of Building and Improvements 11,059      
Accumulated Depreciation 3,352      
Triple-net | Palm Desert, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,195      
Initial Cost of Building & Improvements 8,918      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 6,195      
Carrying Amount of Building and Improvements 8,918      
Accumulated Depreciation 599      
Triple-net | Palm Harbor, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,306      
Initial Cost of Building & Improvements 13,807      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,306      
Carrying Amount of Building and Improvements 13,807      
Accumulated Depreciation 962      
Triple-net | Palm Harbor, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,281      
Initial Cost of Building & Improvements 22,450      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,281      
Carrying Amount of Building and Improvements 22,450      
Accumulated Depreciation 1,535      
Triple-net | Palos Heights, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,225      
Initial Cost of Building & Improvements 12,453      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,225      
Carrying Amount of Building and Improvements 12,453      
Accumulated Depreciation 795      
Triple-net | Palos Heights, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,431      
Initial Cost of Building & Improvements 28,803      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,431      
Carrying Amount of Building and Improvements 28,803      
Accumulated Depreciation 1,776      
Triple-net | Palos Heights, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,590      
Initial Cost of Building & Improvements 7,644      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,590      
Carrying Amount of Building and Improvements 7,644      
Accumulated Depreciation 490      
Triple-net | Panama City Beach, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 900      
Initial Cost of Building & Improvements 6,402      
Cost Capitalized Subsequent to Acquisition 734      
Carrying Amount of Land 900      
Carrying Amount of Building and Improvements 7,136      
Accumulated Depreciation 1,520      
Triple-net | Paola, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 190      
Initial Cost of Building & Improvements 5,610      
Cost Capitalized Subsequent to Acquisition 59      
Carrying Amount of Land 190      
Carrying Amount of Building and Improvements 5,669      
Accumulated Depreciation 809      
Triple-net | Parma, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 960      
Initial Cost of Building & Improvements 12,718      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 960      
Carrying Amount of Building and Improvements 12,718      
Accumulated Depreciation 870      
Triple-net | Parma, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,833      
Initial Cost of Building & Improvements 10,314      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,833      
Carrying Amount of Building and Improvements 10,314      
Accumulated Depreciation 794      
Triple-net | Paulsboro, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,264      
Initial Cost of Building & Improvements 8,023      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,264      
Carrying Amount of Building and Improvements 8,023      
Accumulated Depreciation 555      
Triple-net | Paw Paw, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 7,289      
Carrying Amount of Land 1,687      
Carrying Amount of Building and Improvements 5,602      
Accumulated Depreciation 51      
Triple-net | Perrysburg, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,456      
Initial Cost of Building & Improvements 5,431      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,456      
Carrying Amount of Building and Improvements 5,431      
Accumulated Depreciation 379      
Triple-net | Perrysburg, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,213      
Initial Cost of Building & Improvements 7,108      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,213      
Carrying Amount of Building and Improvements 7,108      
Accumulated Depreciation 460      
Triple-net | Philadelphia, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,930      
Initial Cost of Building & Improvements 10,433      
Cost Capitalized Subsequent to Acquisition 3,536      
Carrying Amount of Land 2,930      
Carrying Amount of Building and Improvements 13,969      
Accumulated Depreciation 4,088      
Triple-net | Phillipsburg, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 800      
Initial Cost of Building & Improvements 21,175      
Cost Capitalized Subsequent to Acquisition 238      
Carrying Amount of Land 800      
Carrying Amount of Building and Improvements 21,413      
Accumulated Depreciation 5,858      
Triple-net | Phillipsburg, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 300      
Initial Cost of Building & Improvements 8,114      
Cost Capitalized Subsequent to Acquisition 101      
Carrying Amount of Land 300      
Carrying Amount of Building and Improvements 8,215      
Accumulated Depreciation 2,249      
Triple-net | Pikesville, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 2,487      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Building and Improvements 2,487      
Accumulated Depreciation 151      
Triple-net | Pikesville, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,247      
Initial Cost of Building & Improvements 8,379      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,247      
Carrying Amount of Building and Improvements 8,379      
Accumulated Depreciation 605      
Triple-net | Pinehurst, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Building & Improvements 2,690      
Cost Capitalized Subsequent to Acquisition 521      
Carrying Amount of Land 290      
Carrying Amount of Building and Improvements 3,211      
Accumulated Depreciation 1,535      
Triple-net | Piqua, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 204      
Initial Cost of Building & Improvements 1,885      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 204      
Carrying Amount of Building and Improvements 1,885      
Accumulated Depreciation 1,114      
Triple-net | Piscataway, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,100      
Initial Cost of Building & Improvements 33,501      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,100      
Carrying Amount of Building and Improvements 33,501      
Accumulated Depreciation 3,315      
Triple-net | Pittsburgh, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 603      
Initial Cost of Building & Improvements 11,354      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 603      
Carrying Amount of Building and Improvements 11,354      
Accumulated Depreciation 772      
Triple-net | Pittsburgh, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,005      
Initial Cost of Building & Improvements 15,160      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,005      
Carrying Amount of Building and Improvements 15,160      
Accumulated Depreciation 992      
Triple-net | Pittsburgh, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,140      
Initial Cost of Building & Improvements 3,164      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,140      
Carrying Amount of Building and Improvements 3,164      
Accumulated Depreciation 209      
Triple-net | Pittsburgh, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 994      
Initial Cost of Building & Improvements 3,789      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 994      
Carrying Amount of Building and Improvements 3,789      
Accumulated Depreciation 356      
Triple-net | Pittsburgh, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 761      
Initial Cost of Building & Improvements 4,213      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 761      
Carrying Amount of Building and Improvements 4,213      
Accumulated Depreciation 267      
Triple-net | Pittsburgh, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,480      
Initial Cost of Building & Improvements 9,712      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,480      
Carrying Amount of Building and Improvements 9,712      
Accumulated Depreciation 718      
Triple-net | Pittsburgh, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,139      
Initial Cost of Building & Improvements 5,844      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,139      
Carrying Amount of Building and Improvements 5,844      
Accumulated Depreciation 423      
Triple-net | Pittsburgh, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,750      
Initial Cost of Building & Improvements 8,572      
Cost Capitalized Subsequent to Acquisition 6,320      
Carrying Amount of Land 1,750      
Carrying Amount of Building and Improvements 14,892      
Accumulated Depreciation 4,061      
Triple-net | Plainview, NY        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,990      
Initial Cost of Building & Improvements 11,969      
Cost Capitalized Subsequent to Acquisition 1,713      
Carrying Amount of Land 3,990      
Carrying Amount of Building and Improvements 13,682      
Accumulated Depreciation 3,719      
Triple-net | Plano, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,840      
Initial Cost of Building & Improvements 20,152      
Cost Capitalized Subsequent to Acquisition 560      
Carrying Amount of Land 1,840      
Carrying Amount of Building and Improvements 20,712      
Accumulated Depreciation 2,802      
Triple-net | Plattsmouth, NE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 250      
Initial Cost of Building & Improvements 5,650      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 250      
Carrying Amount of Building and Improvements 5,650      
Accumulated Depreciation 1,694      
Triple-net | Poole, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,520      
Initial Cost of Building & Improvements 17,691      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,520      
Carrying Amount of Building and Improvements 17,691      
Accumulated Depreciation 652      
Triple-net | Potomac, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,448      
Initial Cost of Building & Improvements 14,622      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,448      
Carrying Amount of Building and Improvements 14,622      
Accumulated Depreciation 939      
Triple-net | Potomac, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,119      
Initial Cost of Building & Improvements 14,916      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,119      
Carrying Amount of Building and Improvements 14,916      
Accumulated Depreciation 989      
Triple-net | Pottstown, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 984      
Initial Cost of Building & Improvements 4,563      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 984      
Carrying Amount of Building and Improvements 4,563      
Accumulated Depreciation 325      
Triple-net | Pottsville, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 171      
Initial Cost of Building & Improvements 3,559      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 171      
Carrying Amount of Building and Improvements 3,559      
Accumulated Depreciation 237      
Triple-net | Prior Lake, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 13,320      
Initial Cost of Land 1,870      
Initial Cost of Building & Improvements 29,849      
Cost Capitalized Subsequent to Acquisition 300      
Carrying Amount of Land 1,870      
Carrying Amount of Building and Improvements 30,149      
Accumulated Depreciation 3,983      
Triple-net | Raleigh, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 7,598      
Initial Cost of Building & Improvements 88,870      
Cost Capitalized Subsequent to Acquisition 904      
Carrying Amount of Land 7,598      
Carrying Amount of Building and Improvements 89,774      
Accumulated Depreciation 8,796      
Triple-net | Raleigh, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,530      
Initial Cost of Building & Improvements 59,589      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,530      
Carrying Amount of Building and Improvements 59,589      
Accumulated Depreciation 12,968      
Triple-net | Raleigh, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,580      
Initial Cost of Building & Improvements 16,837      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,580      
Carrying Amount of Building and Improvements 16,837      
Accumulated Depreciation 3,901      
Triple-net | Reading, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 980      
Initial Cost of Building & Improvements 19,906      
Cost Capitalized Subsequent to Acquisition 140      
Carrying Amount of Land 980      
Carrying Amount of Building and Improvements 20,046      
Accumulated Depreciation 5,407      
Triple-net | Red Bank, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,050      
Initial Cost of Building & Improvements 21,275      
Cost Capitalized Subsequent to Acquisition 1,158      
Carrying Amount of Land 1,050      
Carrying Amount of Building and Improvements 22,433      
Accumulated Depreciation 5,431      
Triple-net | Redondo Beach, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 9,557      
Cost Capitalized Subsequent to Acquisition 711      
Carrying Amount of Land 0      
Carrying Amount of Building and Improvements 10,268      
Accumulated Depreciation 7,787      
Triple-net | Reidsville, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 170      
Initial Cost of Building & Improvements 3,830      
Cost Capitalized Subsequent to Acquisition 1,383      
Carrying Amount of Land 170      
Carrying Amount of Building and Improvements 5,213      
Accumulated Depreciation 2,265      
Triple-net | Richardson, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,468      
Initial Cost of Building & Improvements 12,975      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,468      
Carrying Amount of Building and Improvements 12,975      
Accumulated Depreciation 867      
Triple-net | Richmond, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 700      
Initial Cost of Building & Improvements 14,222      
Cost Capitalized Subsequent to Acquisition 393      
Carrying Amount of Land 700      
Carrying Amount of Building and Improvements 14,615      
Accumulated Depreciation 2,142      
Triple-net | Richmond, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,261      
Initial Cost of Building & Improvements 17,974      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,261      
Carrying Amount of Building and Improvements 17,974      
Accumulated Depreciation 1,141      
Triple-net | Richmond, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,046      
Initial Cost of Building & Improvements 8,233      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,046      
Carrying Amount of Building and Improvements 8,233      
Accumulated Depreciation 559      
Triple-net | Roanoke, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 748      
Initial Cost of Building & Improvements 4,483      
Cost Capitalized Subsequent to Acquisition 5      
Carrying Amount of Land 748      
Carrying Amount of Building and Improvements 4,488      
Accumulated Depreciation 996      
Triple-net | Rockford, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 15,932      
Carrying Amount of Land 2,386      
Carrying Amount of Building and Improvements 13,546      
Accumulated Depreciation 85      
Triple-net | Rockville Centre, NY        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,290      
Initial Cost of Building & Improvements 20,310      
Cost Capitalized Subsequent to Acquisition 1,379      
Carrying Amount of Land 4,290      
Carrying Amount of Building and Improvements 21,689      
Accumulated Depreciation 5,552      
Triple-net | Rockwall, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,220      
Initial Cost of Building & Improvements 17,650      
Cost Capitalized Subsequent to Acquisition 112      
Carrying Amount of Land 2,220      
Carrying Amount of Building and Improvements 17,762      
Accumulated Depreciation 2,508      
Triple-net | Romeoville, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,895      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,895      
Carrying Amount of Building and Improvements 0      
Accumulated Depreciation 0      
Triple-net | Roseville, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,140      
Initial Cost of Building & Improvements 24,679      
Cost Capitalized Subsequent to Acquisition 100      
Carrying Amount of Land 2,140      
Carrying Amount of Building and Improvements 24,779      
Accumulated Depreciation 3,318      
Triple-net | Rugeley, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,900      
Initial Cost of Building & Improvements 10,262      
Cost Capitalized Subsequent to Acquisition 1,306      
Carrying Amount of Land 2,104      
Carrying Amount of Building and Improvements 11,364      
Accumulated Depreciation 2,351      
Triple-net | Ruston, LA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 710      
Initial Cost of Building & Improvements 9,790      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 710      
Carrying Amount of Building and Improvements 9,790      
Accumulated Depreciation 2,715      
Triple-net | S Holland, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,423      
Initial Cost of Building & Improvements 8,907      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,423      
Carrying Amount of Building and Improvements 8,907      
Accumulated Depreciation 609      
Triple-net | Salem, OR        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 449      
Initial Cost of Building & Improvements 5,171      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 449      
Carrying Amount of Building and Improvements 5,172      
Accumulated Depreciation 2,949      
Triple-net | Salisbury, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 370      
Initial Cost of Building & Improvements 5,697      
Cost Capitalized Subsequent to Acquisition 390      
Carrying Amount of Land 370      
Carrying Amount of Building and Improvements 6,087      
Accumulated Depreciation 2,700      
Triple-net | San Angelo, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 260      
Initial Cost of Building & Improvements 8,800      
Cost Capitalized Subsequent to Acquisition 425      
Carrying Amount of Land 260      
Carrying Amount of Building and Improvements 9,225      
Accumulated Depreciation 3,797      
Triple-net | San Angelo, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,050      
Initial Cost of Building & Improvements 24,689      
Cost Capitalized Subsequent to Acquisition 1,361      
Carrying Amount of Land 1,050      
Carrying Amount of Building and Improvements 26,050      
Accumulated Depreciation 4,374      
Triple-net | San Antonio, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,499      
Initial Cost of Building & Improvements 12,658      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,499      
Carrying Amount of Building and Improvements 12,658      
Accumulated Depreciation 836      
Triple-net | San Antonio, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 17,303      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Building and Improvements 17,303      
Accumulated Depreciation 9,129      
Triple-net | San Diego, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 22,003      
Cost Capitalized Subsequent to Acquisition 1,845      
Carrying Amount of Land 0      
Carrying Amount of Building and Improvements 23,848      
Accumulated Depreciation 7,260      
Triple-net | San Juan Capistrano, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,390      
Initial Cost of Building & Improvements 6,942      
Cost Capitalized Subsequent to Acquisition 1,506      
Carrying Amount of Land 1,390      
Carrying Amount of Building and Improvements 8,448      
Accumulated Depreciation 3,880      
Triple-net | Sand Springs, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 910      
Initial Cost of Building & Improvements 19,654      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 910      
Carrying Amount of Building and Improvements 19,654      
Accumulated Depreciation 4,376      
Triple-net | Sandusky, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 7,706      
Carrying Amount of Land 967      
Carrying Amount of Building and Improvements 6,739      
Accumulated Depreciation 45      
Triple-net | Sarasota, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 475      
Initial Cost of Building & Improvements 3,175      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 475      
Carrying Amount of Building and Improvements 3,175      
Accumulated Depreciation 2,064      
Triple-net | Sarasota, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,101      
Initial Cost of Building & Improvements 11,204      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,101      
Carrying Amount of Building and Improvements 11,204      
Accumulated Depreciation 1,190      
Triple-net | Sarasota, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,370      
Initial Cost of Building & Improvements 4,082      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,370      
Carrying Amount of Building and Improvements 4,082      
Accumulated Depreciation 278      
Triple-net | Sarasota, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,792      
Initial Cost of Building & Improvements 11,173      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,792      
Carrying Amount of Building and Improvements 11,173      
Accumulated Depreciation 737      
Triple-net | Sarasota, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,360      
Initial Cost of Building & Improvements 19,140      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,360      
Carrying Amount of Building and Improvements 19,140      
Accumulated Depreciation 4,684      
Triple-net | Sarasota, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 443      
Initial Cost of Building & Improvements 8,892      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 443      
Carrying Amount of Building and Improvements 8,892      
Accumulated Depreciation 649      
Triple-net | Scranton, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 440      
Initial Cost of Building & Improvements 17,609      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 440      
Carrying Amount of Building and Improvements 17,609      
Accumulated Depreciation 3,029      
Triple-net | Scranton, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 320      
Initial Cost of Building & Improvements 12,144      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 320      
Carrying Amount of Building and Improvements 12,145      
Accumulated Depreciation 2,082      
Triple-net | Seminole, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,165      
Initial Cost of Building & Improvements 8,975      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,165      
Carrying Amount of Building and Improvements 8,975      
Accumulated Depreciation 634      
Triple-net | Seven Fields, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 484      
Initial Cost of Building & Improvements 4,663      
Cost Capitalized Subsequent to Acquisition 59      
Carrying Amount of Land 484      
Carrying Amount of Building and Improvements 4,722      
Accumulated Depreciation 2,695      
Triple-net | Sewell, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,127      
Initial Cost of Building & Improvements 14,090      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,127      
Carrying Amount of Building and Improvements 14,090      
Accumulated Depreciation 1,059      
Triple-net | Shawnee, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 80      
Initial Cost of Building & Improvements 1,400      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 80      
Carrying Amount of Building and Improvements 1,400      
Accumulated Depreciation 903      
Triple-net | Shelbyville, KY        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 630      
Initial Cost of Building & Improvements 3,870      
Cost Capitalized Subsequent to Acquisition 630      
Carrying Amount of Land 630      
Carrying Amount of Building and Improvements 4,500      
Accumulated Depreciation 1,789      
Triple-net | Silver Spring, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,469      
Initial Cost of Building & Improvements 10,392      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,469      
Carrying Amount of Building and Improvements 10,392      
Accumulated Depreciation 687      
Triple-net | Silver Spring, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,678      
Initial Cost of Building & Improvements 11,679      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,678      
Carrying Amount of Building and Improvements 11,679      
Accumulated Depreciation 823      
Triple-net | Silvis, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 880      
Initial Cost of Building & Improvements 16,420      
Cost Capitalized Subsequent to Acquisition 139      
Carrying Amount of Land 880      
Carrying Amount of Building and Improvements 16,559      
Accumulated Depreciation 4,580      
Triple-net | Sinking Spring, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,393      
Initial Cost of Building & Improvements 19,842      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,393      
Carrying Amount of Building and Improvements 19,842      
Accumulated Depreciation 1,296      
Triple-net | Sittingbourne, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,357      
Initial Cost of Building & Improvements 6,539      
Cost Capitalized Subsequent to Acquisition 848      
Carrying Amount of Land 1,503      
Carrying Amount of Building and Improvements 7,241      
Accumulated Depreciation 1,142      
Triple-net | Smithfield, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Building & Improvements 5,680      
Cost Capitalized Subsequent to Acquisition 508      
Carrying Amount of Land 290      
Carrying Amount of Building and Improvements 6,188      
Accumulated Depreciation 2,632      
Triple-net | Smithfield, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 360      
Initial Cost of Building & Improvements 8,216      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 360      
Carrying Amount of Building and Improvements 8,216      
Accumulated Depreciation 1,408      
Triple-net | South Bend, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 670      
Initial Cost of Building & Improvements 17,770      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 670      
Carrying Amount of Building and Improvements 17,770      
Accumulated Depreciation 3,176      
Triple-net | South Point, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,135      
Initial Cost of Building & Improvements 9,387      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,135      
Carrying Amount of Building and Improvements 9,387      
Accumulated Depreciation 614      
Triple-net | Southampton, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,519      
Initial Cost of Building & Improvements 16,041      
Cost Capitalized Subsequent to Acquisition 1,250      
Carrying Amount of Land 1,627      
Carrying Amount of Building and Improvements 17,183      
Accumulated Depreciation 1,506      
Triple-net | Southbury, CT        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,860      
Initial Cost of Building & Improvements 23,613      
Cost Capitalized Subsequent to Acquisition 958      
Carrying Amount of Land 1,860      
Carrying Amount of Building and Improvements 24,571      
Accumulated Depreciation 6,218      
Triple-net | Spokane, WA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,649      
Initial Cost of Building & Improvements 11,699      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,649      
Carrying Amount of Building and Improvements 11,699      
Accumulated Depreciation 774      
Triple-net | Springfield, IL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 990      
Initial Cost of Building & Improvements 13,378      
Cost Capitalized Subsequent to Acquisition 1,085      
Carrying Amount of Land 990      
Carrying Amount of Building and Improvements 14,463      
Accumulated Depreciation 2,536      
Triple-net | St. Louis, MO        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,890      
Initial Cost of Building & Improvements 12,390      
Cost Capitalized Subsequent to Acquisition 837      
Carrying Amount of Land 1,890      
Carrying Amount of Building and Improvements 13,227      
Accumulated Depreciation 3,365      
Triple-net | St. Paul, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,100      
Initial Cost of Building & Improvements 33,019      
Cost Capitalized Subsequent to Acquisition 100      
Carrying Amount of Land 2,100      
Carrying Amount of Building and Improvements 33,119      
Accumulated Depreciation 4,396      
Triple-net | Stafford, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,009      
Initial Cost of Building & Improvements 8,238      
Cost Capitalized Subsequent to Acquisition 730      
Carrying Amount of Land 2,152      
Carrying Amount of Building and Improvements 8,825      
Accumulated Depreciation 1,009      
Triple-net | Stamford, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,820      
Initial Cost of Building & Improvements 3,238      
Cost Capitalized Subsequent to Acquisition 543      
Carrying Amount of Land 2,015      
Carrying Amount of Building and Improvements 3,586      
Accumulated Depreciation 603      
Triple-net | Statesville, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 150      
Initial Cost of Building & Improvements 1,447      
Cost Capitalized Subsequent to Acquisition 377      
Carrying Amount of Land 150      
Carrying Amount of Building and Improvements 1,824      
Accumulated Depreciation 827      
Triple-net | Statesville, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 310      
Initial Cost of Building & Improvements 6,183      
Cost Capitalized Subsequent to Acquisition 164      
Carrying Amount of Land 310      
Carrying Amount of Building and Improvements 6,347      
Accumulated Depreciation 2,811      
Triple-net | Statesville, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 140      
Initial Cost of Building & Improvements 3,627      
Cost Capitalized Subsequent to Acquisition 53      
Carrying Amount of Land 140      
Carrying Amount of Building and Improvements 3,680      
Accumulated Depreciation 1,676      
Triple-net | Staunton, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 899      
Initial Cost of Building & Improvements 6,391      
Cost Capitalized Subsequent to Acquisition 6      
Carrying Amount of Land 899      
Carrying Amount of Building and Improvements 6,397      
Accumulated Depreciation 1,153      
Triple-net | Sterling Heights, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 790      
Initial Cost of Building & Improvements 10,784      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 790      
Carrying Amount of Building and Improvements 10,784      
Accumulated Depreciation 718      
Triple-net | Sterling Heights, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,583      
Initial Cost of Building & Improvements 15,634      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,583      
Carrying Amount of Building and Improvements 15,634      
Accumulated Depreciation 1,057      
Triple-net | Stillwater, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 80      
Initial Cost of Building & Improvements 1,400      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 80      
Carrying Amount of Building and Improvements 1,400      
Accumulated Depreciation 905      
Triple-net | Stratford-upon-Avon, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 790      
Initial Cost of Building & Improvements 14,508      
Cost Capitalized Subsequent to Acquisition 1,643      
Carrying Amount of Land 874      
Carrying Amount of Building and Improvements 16,067      
Accumulated Depreciation 2,370      
Triple-net | Stroudsburg, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 340      
Initial Cost of Building & Improvements 16,313      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 340      
Carrying Amount of Building and Improvements 16,313      
Accumulated Depreciation 3,143      
Triple-net | Sunbury, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 695      
Initial Cost of Building & Improvements 7,244      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 695      
Carrying Amount of Building and Improvements 7,244      
Accumulated Depreciation 463      
Triple-net | Sunnyvale, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,946      
Initial Cost of Building & Improvements 22,123      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,946      
Carrying Amount of Building and Improvements 22,123      
Accumulated Depreciation 1,408      
Triple-net | Superior, WI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,020      
Initial Cost of Building & Improvements 13,735      
Cost Capitalized Subsequent to Acquisition 6,159      
Carrying Amount of Land 1,020      
Carrying Amount of Building and Improvements 19,894      
Accumulated Depreciation 4,005      
Triple-net | Tacoma, WA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,522      
Initial Cost of Building & Improvements 8,573      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,522      
Carrying Amount of Building and Improvements 8,573      
Accumulated Depreciation 558      
Triple-net | Tampa, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,315      
Initial Cost of Building & Improvements 6,911      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,315      
Carrying Amount of Building and Improvements 6,911      
Accumulated Depreciation 531      
Triple-net | Terre Haute, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,370      
Initial Cost of Building & Improvements 18,016      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,370      
Carrying Amount of Building and Improvements 18,016      
Accumulated Depreciation 2,990      
Triple-net | Texarkana, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 192      
Initial Cost of Building & Improvements 1,403      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 192      
Carrying Amount of Building and Improvements 1,403      
Accumulated Depreciation 880      
Triple-net | The Villages, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,035      
Initial Cost of Building & Improvements 7,446      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,035      
Carrying Amount of Building and Improvements 7,446      
Accumulated Depreciation 1,551      
Triple-net | Thomasville, GA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 530      
Initial Cost of Building & Improvements 12,520      
Cost Capitalized Subsequent to Acquisition 1,347      
Carrying Amount of Land 530      
Carrying Amount of Building and Improvements 13,867      
Accumulated Depreciation 2,766      
Triple-net | Three Rivers, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,255      
Initial Cost of Building & Improvements 2,760      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,255      
Carrying Amount of Building and Improvements 2,760      
Accumulated Depreciation 241      
Triple-net | Tomball, TX        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,050      
Initial Cost of Building & Improvements 13,300      
Cost Capitalized Subsequent to Acquisition 840      
Carrying Amount of Land 1,050      
Carrying Amount of Building and Improvements 14,140      
Accumulated Depreciation 3,538      
Triple-net | Toms River, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,466      
Initial Cost of Building & Improvements 23,311      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,466      
Carrying Amount of Building and Improvements 23,311      
Accumulated Depreciation 1,742      
Triple-net | Tonganoxie, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 310      
Initial Cost of Building & Improvements 3,690      
Cost Capitalized Subsequent to Acquisition 76      
Carrying Amount of Land 310      
Carrying Amount of Building and Improvements 3,766      
Accumulated Depreciation 593      
Triple-net | Topeka, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 260      
Initial Cost of Building & Improvements 12,712      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 260      
Carrying Amount of Building and Improvements 12,712      
Accumulated Depreciation 2,923      
Triple-net | Towson, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,715      
Initial Cost of Building & Improvements 13,111      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,715      
Carrying Amount of Building and Improvements 13,111      
Accumulated Depreciation 865      
Triple-net | Towson, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,100      
Initial Cost of Building & Improvements 6,465      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,100      
Carrying Amount of Building and Improvements 6,465      
Accumulated Depreciation 408      
Triple-net | Towson, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,527      
Initial Cost of Building & Improvements 3,126      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,527      
Carrying Amount of Building and Improvements 3,126      
Accumulated Depreciation 249      
Triple-net | Troy, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,381      
Initial Cost of Building & Improvements 24,445      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,381      
Carrying Amount of Building and Improvements 24,445      
Accumulated Depreciation 1,543      
Triple-net | Troy, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Building & Improvements 2,000      
Cost Capitalized Subsequent to Acquisition 4,254      
Carrying Amount of Land 200      
Carrying Amount of Building and Improvements 6,254      
Accumulated Depreciation 2,513      
Triple-net | Trumbull, CT        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,440      
Initial Cost of Building & Improvements 43,384      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,440      
Carrying Amount of Building and Improvements 43,384      
Accumulated Depreciation 11,166      
Triple-net | Tulsa, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,390      
Initial Cost of Building & Improvements 7,110      
Cost Capitalized Subsequent to Acquisition 1,102      
Carrying Amount of Land 1,390      
Carrying Amount of Building and Improvements 8,212      
Accumulated Depreciation 2,542      
Triple-net | Tulsa, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,320      
Initial Cost of Building & Improvements 10,087      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,320      
Carrying Amount of Building and Improvements 10,087      
Accumulated Depreciation 2,417      
Triple-net | Tulsa, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,100      
Initial Cost of Building & Improvements 27,007      
Cost Capitalized Subsequent to Acquisition 2,233      
Carrying Amount of Land 1,100      
Carrying Amount of Building and Improvements 29,240      
Accumulated Depreciation 3,182      
Triple-net | Tulsa, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 12,935      
Initial Cost of Land 1,752      
Initial Cost of Building & Improvements 28,421      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,752      
Carrying Amount of Building and Improvements 28,421      
Accumulated Depreciation 2,830      
Triple-net | Tulsa, OK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 890      
Initial Cost of Building & Improvements 9,410      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 890      
Carrying Amount of Building and Improvements 9,410      
Accumulated Depreciation 836      
Triple-net | Tustin, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 840      
Initial Cost of Building & Improvements 15,299      
Cost Capitalized Subsequent to Acquisition 537      
Carrying Amount of Land 840      
Carrying Amount of Building and Improvements 15,836      
Accumulated Depreciation 4,448      
Triple-net | Twinsburg, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,446      
Initial Cost of Building & Improvements 5,919      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,446      
Carrying Amount of Building and Improvements 5,919      
Accumulated Depreciation 432      
Triple-net | Union, KY        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 33,617      
Carrying Amount of Land 2,242      
Carrying Amount of Building and Improvements 31,375      
Accumulated Depreciation 558      
Triple-net | Union, SC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,932      
Initial Cost of Building & Improvements 2,372      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,932      
Carrying Amount of Building and Improvements 2,372      
Accumulated Depreciation 242      
Triple-net | Valparaiso, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 112      
Initial Cost of Building & Improvements 2,558      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 112      
Carrying Amount of Building and Improvements 2,558      
Accumulated Depreciation 1,326      
Triple-net | Valparaiso, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 108      
Initial Cost of Building & Improvements 2,962      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 108      
Carrying Amount of Building and Improvements 2,962      
Accumulated Depreciation 1,519      
Triple-net | Vancouver, WA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,503      
Initial Cost of Building & Improvements 28,393      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,503      
Carrying Amount of Building and Improvements 28,393      
Accumulated Depreciation 1,777      
Triple-net | Venice, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,150      
Initial Cost of Building & Improvements 10,674      
Cost Capitalized Subsequent to Acquisition 111      
Carrying Amount of Land 1,150      
Carrying Amount of Building and Improvements 10,785      
Accumulated Depreciation 3,324      
Triple-net | Venice, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,246      
Initial Cost of Building & Improvements 10,094      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,246      
Carrying Amount of Building and Improvements 10,094      
Accumulated Depreciation 710      
Triple-net | Vero Beach, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 263      
Initial Cost of Building & Improvements 3,187      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 263      
Carrying Amount of Building and Improvements 3,187      
Accumulated Depreciation 1,626      
Triple-net | Vero Beach, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 297      
Initial Cost of Building & Improvements 3,263      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 297      
Carrying Amount of Building and Improvements 3,263      
Accumulated Depreciation 1,673      
Triple-net | Virginia Beach, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,540      
Initial Cost of Building & Improvements 22,593      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,540      
Carrying Amount of Building and Improvements 22,593      
Accumulated Depreciation 3,925      
Triple-net | Voorhees, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,800      
Initial Cost of Building & Improvements 37,299      
Cost Capitalized Subsequent to Acquisition 671      
Carrying Amount of Land 1,800      
Carrying Amount of Building and Improvements 37,970      
Accumulated Depreciation 10,209      
Triple-net | Voorhees, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,100      
Initial Cost of Building & Improvements 25,950      
Cost Capitalized Subsequent to Acquisition 26      
Carrying Amount of Land 3,100      
Carrying Amount of Building and Improvements 25,976      
Accumulated Depreciation 6,004      
Triple-net | Voorhees, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,193      
Initial Cost of Building & Improvements 6,990      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,193      
Carrying Amount of Building and Improvements 6,990      
Accumulated Depreciation 511      
Triple-net | W Palm Beach, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,175      
Initial Cost of Building & Improvements 8,294      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,175      
Carrying Amount of Building and Improvements 8,294      
Accumulated Depreciation 595      
Triple-net | W Palm Beach, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,921      
Initial Cost of Building & Improvements 5,731      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,921      
Carrying Amount of Building and Improvements 5,731      
Accumulated Depreciation 397      
Triple-net | Wabash, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 670      
Initial Cost of Building & Improvements 14,588      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 670      
Carrying Amount of Building and Improvements 14,589      
Accumulated Depreciation 2,713      
Triple-net | Waconia, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 890      
Initial Cost of Building & Improvements 14,726      
Cost Capitalized Subsequent to Acquisition 4,495      
Carrying Amount of Land 890      
Carrying Amount of Building and Improvements 19,221      
Accumulated Depreciation 4,592      
Triple-net | Wake Forest, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Building & Improvements 3,003      
Cost Capitalized Subsequent to Acquisition 2,084      
Carrying Amount of Land 200      
Carrying Amount of Building and Improvements 5,087      
Accumulated Depreciation 2,531      
Triple-net | Wallingford, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,356      
Initial Cost of Building & Improvements 6,487      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,356      
Carrying Amount of Building and Improvements 6,487      
Accumulated Depreciation 483      
Triple-net | Walnut Creek, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,358      
Initial Cost of Building & Improvements 18,407      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,358      
Carrying Amount of Building and Improvements 18,407      
Accumulated Depreciation 1,202      
Triple-net | Walnut Creek, CA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 5,394      
Initial Cost of Building & Improvements 39,084      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 5,394      
Carrying Amount of Building and Improvements 39,084      
Accumulated Depreciation 2,426      
Triple-net | Walsall, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,184      
Initial Cost of Building & Improvements 8,562      
Cost Capitalized Subsequent to Acquisition 1,047      
Carrying Amount of Land 1,312      
Carrying Amount of Building and Improvements 9,481      
Accumulated Depreciation 1,481      
Triple-net | Wamego, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 40      
Initial Cost of Building & Improvements 2,510      
Cost Capitalized Subsequent to Acquisition 57      
Carrying Amount of Land 40      
Carrying Amount of Building and Improvements 2,567      
Accumulated Depreciation 372      
Triple-net | Wareham, MA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 875      
Initial Cost of Building & Improvements 10,313      
Cost Capitalized Subsequent to Acquisition 1,701      
Carrying Amount of Land 875      
Carrying Amount of Building and Improvements 12,014      
Accumulated Depreciation 6,070      
Triple-net | Warren, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,000      
Initial Cost of Building & Improvements 30,810      
Cost Capitalized Subsequent to Acquisition 1,337      
Carrying Amount of Land 2,000      
Carrying Amount of Building and Improvements 32,147      
Accumulated Depreciation 7,798      
Triple-net | Waterloo, IA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 605      
Initial Cost of Building & Improvements 3,030      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 605      
Carrying Amount of Building and Improvements 3,030      
Accumulated Depreciation 218      
Triple-net | Wayne, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,427      
Initial Cost of Building & Improvements 15,674      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,427      
Carrying Amount of Building and Improvements 15,674      
Accumulated Depreciation 1,301      
Triple-net | Wellingborough, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,480      
Initial Cost of Building & Improvements 5,724      
Cost Capitalized Subsequent to Acquisition 774      
Carrying Amount of Land 1,639      
Carrying Amount of Building and Improvements 6,339      
Accumulated Depreciation 1,102      
Triple-net | West Bend, WI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 620      
Initial Cost of Building & Improvements 17,790      
Cost Capitalized Subsequent to Acquisition 38      
Carrying Amount of Land 620      
Carrying Amount of Building and Improvements 17,828      
Accumulated Depreciation 4,256      
Triple-net | West Des Moines, IA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 828      
Initial Cost of Building & Improvements 5,103      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 828      
Carrying Amount of Building and Improvements 5,103      
Accumulated Depreciation 372      
Triple-net | West Milford, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,960      
Initial Cost of Building & Improvements 24,614      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,960      
Carrying Amount of Building and Improvements 24,614      
Accumulated Depreciation 1,406      
Triple-net | West Orange, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,347      
Initial Cost of Building & Improvements 19,389      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,347      
Carrying Amount of Building and Improvements 19,389      
Accumulated Depreciation 1,507      
Triple-net | West Reading, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 890      
Initial Cost of Building & Improvements 12,118      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 890      
Carrying Amount of Building and Improvements 12,118      
Accumulated Depreciation 749      
Triple-net | Westerville, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 740      
Initial Cost of Building & Improvements 8,287      
Cost Capitalized Subsequent to Acquisition 4,146      
Carrying Amount of Land 740      
Carrying Amount of Building and Improvements 12,433      
Accumulated Depreciation 10,835      
Triple-net | Westerville, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 25,574      
Carrying Amount of Land 2,566      
Carrying Amount of Building and Improvements 23,008      
Accumulated Depreciation 194      
Triple-net | Westerville, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,420      
Initial Cost of Building & Improvements 5,371      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,420      
Carrying Amount of Building and Improvements 5,371      
Accumulated Depreciation 369      
Triple-net | Westerville, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,582      
Initial Cost of Building & Improvements 10,279      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,582      
Carrying Amount of Building and Improvements 10,279      
Accumulated Depreciation 719      
Triple-net | Westfield, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 890      
Initial Cost of Building & Improvements 15,964      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 890      
Carrying Amount of Building and Improvements 15,965      
Accumulated Depreciation 2,943      
Triple-net | Westlake, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 855      
Initial Cost of Building & Improvements 11,963      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 855      
Carrying Amount of Building and Improvements 11,963      
Accumulated Depreciation 805      
Triple-net | Weston Super Mare, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,517      
Initial Cost of Building & Improvements 7,054      
Cost Capitalized Subsequent to Acquisition 1,028      
Carrying Amount of Land 2,787      
Carrying Amount of Building and Improvements 7,812      
Accumulated Depreciation 1,535      
Triple-net | Wheaton, MD        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,864      
Initial Cost of Building & Improvements 3,788      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,864      
Carrying Amount of Building and Improvements 3,788      
Accumulated Depreciation 270      
Triple-net | Whippany, NJ        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,571      
Initial Cost of Building & Improvements 14,977      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,571      
Carrying Amount of Building and Improvements 14,977      
Accumulated Depreciation 1,014      
Triple-net | Whitehall, MI        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Building & Improvements 0      
Cost Capitalized Subsequent to Acquisition 8,434      
Carrying Amount of Land 1,645      
Carrying Amount of Building and Improvements 6,789      
Accumulated Depreciation 54      
Triple-net | Wichita, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,400      
Initial Cost of Building & Improvements 11,000      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,400      
Carrying Amount of Building and Improvements 11,000      
Accumulated Depreciation 5,732      
Triple-net | Wichita, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 860      
Initial Cost of Building & Improvements 8,873      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 860      
Carrying Amount of Building and Improvements 8,873      
Accumulated Depreciation 2,323      
Triple-net | Wichita, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 12,300      
Initial Cost of Land 630      
Initial Cost of Building & Improvements 19,747      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 630      
Carrying Amount of Building and Improvements 19,747      
Accumulated Depreciation 4,352      
Triple-net | Wichita, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 260      
Initial Cost of Building & Improvements 2,240      
Cost Capitalized Subsequent to Acquisition 129      
Carrying Amount of Land 260      
Carrying Amount of Building and Improvements 2,369      
Accumulated Depreciation 346      
Triple-net | Wichita, KS        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 900      
Initial Cost of Building & Improvements 10,134      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 900      
Carrying Amount of Building and Improvements 10,134      
Accumulated Depreciation 2,504      
Triple-net | Wilkes-Barre, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 570      
Initial Cost of Building & Improvements 2,301      
Cost Capitalized Subsequent to Acquisition 686      
Carrying Amount of Land 570      
Carrying Amount of Building and Improvements 2,987      
Accumulated Depreciation 1,035      
Triple-net | Wilkes-Barre, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 753      
Initial Cost of Building & Improvements 3,456      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 753      
Carrying Amount of Building and Improvements 3,456      
Accumulated Depreciation 272      
Triple-net | Williamsburg, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,187      
Initial Cost of Building & Improvements 5,728      
Cost Capitalized Subsequent to Acquisition 6      
Carrying Amount of Land 1,187      
Carrying Amount of Building and Improvements 5,734      
Accumulated Depreciation 1,069      
Triple-net | Williamsport, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 919      
Initial Cost of Building & Improvements 6,924      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 919      
Carrying Amount of Building and Improvements 6,924      
Accumulated Depreciation 468      
Triple-net | Williamsport, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 780      
Initial Cost of Building & Improvements 1,898      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 780      
Carrying Amount of Building and Improvements 1,898      
Accumulated Depreciation 170      
Triple-net | Williamstown, KY        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 70      
Initial Cost of Building & Improvements 6,430      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 70      
Carrying Amount of Building and Improvements 6,430      
Accumulated Depreciation 2,797      
Triple-net | Willoughby, OH        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,774      
Initial Cost of Building & Improvements 8,653      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,774      
Carrying Amount of Building and Improvements 8,653      
Accumulated Depreciation 592      
Triple-net | Wilmington, DE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 800      
Initial Cost of Building & Improvements 9,494      
Cost Capitalized Subsequent to Acquisition 114      
Carrying Amount of Land 800      
Carrying Amount of Building and Improvements 9,608      
Accumulated Depreciation 2,769      
Triple-net | Wilmington, DE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,376      
Initial Cost of Building & Improvements 13,450      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,376      
Carrying Amount of Building and Improvements 13,450      
Accumulated Depreciation 892      
Triple-net | Wilmington, DE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,843      
Initial Cost of Building & Improvements 36,948      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,843      
Carrying Amount of Building and Improvements 36,948      
Accumulated Depreciation 2,356      
Triple-net | Wilmington, DE        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,266      
Initial Cost of Building & Improvements 9,500      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,266      
Carrying Amount of Building and Improvements 9,500      
Accumulated Depreciation 647      
Triple-net | Wilmington, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 210      
Initial Cost of Building & Improvements 2,991      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 210      
Carrying Amount of Building and Improvements 2,991      
Accumulated Depreciation 1,701      
Triple-net | Wilmington, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 400      
Initial Cost of Building & Improvements 15,355      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 400      
Carrying Amount of Building and Improvements 15,355      
Accumulated Depreciation 2,759      
Triple-net | Windsor, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,148      
Initial Cost of Building & Improvements 6,514      
Cost Capitalized Subsequent to Acquisition 7      
Carrying Amount of Land 1,148      
Carrying Amount of Building and Improvements 6,521      
Accumulated Depreciation 1,213      
Triple-net | Winston-Salem, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 360      
Initial Cost of Building & Improvements 2,514      
Cost Capitalized Subsequent to Acquisition 509      
Carrying Amount of Land 360      
Carrying Amount of Building and Improvements 3,023      
Accumulated Depreciation 1,406      
Triple-net | Winter Garden, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,110      
Initial Cost of Building & Improvements 7,937      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,110      
Carrying Amount of Building and Improvements 7,937      
Accumulated Depreciation 1,855      
Triple-net | Winter Springs, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,152      
Initial Cost of Building & Improvements 14,822      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,152      
Carrying Amount of Building and Improvements 14,822      
Accumulated Depreciation 972      
Triple-net | Witherwack, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 944      
Initial Cost of Building & Improvements 6,915      
Cost Capitalized Subsequent to Acquisition 844      
Carrying Amount of Land 1,045      
Carrying Amount of Building and Improvements 7,658      
Accumulated Depreciation 1,506      
Triple-net | Wolverhampton, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,573      
Initial Cost of Building & Improvements 6,678      
Cost Capitalized Subsequent to Acquisition 886      
Carrying Amount of Land 1,742      
Carrying Amount of Building and Improvements 7,395      
Accumulated Depreciation 1,467      
Triple-net | Woodbury, MN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,317      
Initial Cost of Building & Improvements 20,935      
Cost Capitalized Subsequent to Acquisition 298      
Carrying Amount of Land 1,317      
Carrying Amount of Building and Improvements 21,233      
Accumulated Depreciation 2,275      
Triple-net | Woodstock, VA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 594      
Initial Cost of Building & Improvements 5,108      
Cost Capitalized Subsequent to Acquisition 5      
Carrying Amount of Land 594      
Carrying Amount of Building and Improvements 5,113      
Accumulated Depreciation 850      
Triple-net | Worcester, MA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,500      
Initial Cost of Building & Improvements 54,099      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,500      
Carrying Amount of Building and Improvements 54,099      
Accumulated Depreciation 15,931      
Triple-net | Worcester, MA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,300      
Initial Cost of Building & Improvements 9,060      
Cost Capitalized Subsequent to Acquisition 6,000      
Carrying Amount of Land 2,300      
Carrying Amount of Building and Improvements 15,060      
Accumulated Depreciation 5,708      
Triple-net | Yardley, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 773      
Initial Cost of Building & Improvements 14,914      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 773      
Carrying Amount of Building and Improvements 14,914      
Accumulated Depreciation 1,035      
Triple-net | Yardley, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,561      
Initial Cost of Building & Improvements 9,439      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,561      
Carrying Amount of Building and Improvements 9,439      
Accumulated Depreciation 779      
Triple-net | Yeadon, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,075      
Initial Cost of Building & Improvements 10,690      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,075      
Carrying Amount of Building and Improvements 10,690      
Accumulated Depreciation 681      
Triple-net | York, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 976      
Initial Cost of Building & Improvements 9,354      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 976      
Carrying Amount of Building and Improvements 9,354      
Accumulated Depreciation 631      
Triple-net | York, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,050      
Initial Cost of Building & Improvements 4,210      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,050      
Carrying Amount of Building and Improvements 4,210      
Accumulated Depreciation 336      
Triple-net | York, PA        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,121      
Initial Cost of Building & Improvements 7,584      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,121      
Carrying Amount of Building and Improvements 7,584      
Accumulated Depreciation 546      
Triple-net | York, UK        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,961      
Initial Cost of Building & Improvements 8,266      
Cost Capitalized Subsequent to Acquisition 1,206      
Carrying Amount of Land 3,279      
Carrying Amount of Building and Improvements 9,154      
Accumulated Depreciation 1,509      
Triple-net | Youngsville, NC        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 380      
Initial Cost of Building & Improvements 10,689      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 380      
Carrying Amount of Building and Improvements 10,689      
Accumulated Depreciation 1,870      
Triple-net | Zephyrhills, FL        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,131      
Initial Cost of Building & Improvements 6,669      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,131      
Carrying Amount of Building and Improvements 6,669      
Accumulated Depreciation 505      
Triple-net | Zionsville, IN        
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,610      
Initial Cost of Building & Improvements 22,400      
Cost Capitalized Subsequent to Acquisition 1,691      
Carrying Amount of Land 1,610      
Carrying Amount of Building and Improvements 24,091      
Accumulated Depreciation $ 6,410