XML 121 R101.htm IDEA: XBRL DOCUMENT v3.10.0.1
Schedule III - Real Estate and Accumulated Depreciation (Triple-net) (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 2,485,711      
Initial Cost of Land 3,141,623      
Initial Cost of Buildings & Improvements 28,882,284      
Cost Capitalized Subsequent to Acquisition 1,868,125      
Carrying Amount of Land 3,205,091      
Carrying Amount of Buildings and Improvements 30,385,297      
Accumulated Depreciation 5,499,958 $ 4,838,370 $ 4,093,494 $ 3,796,297
Triple-net        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 288,387      
Initial Cost of Land 1,096,169      
Initial Cost of Buildings & Improvements 8,585,481      
Cost Capitalized Subsequent to Acquisition 301,960      
Carrying Amount of Land 1,119,576      
Carrying Amount of Buildings and Improvements 8,864,034      
Accumulated Depreciation 1,261,486      
Triple-net | Abilene, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 950      
Initial Cost of Buildings & Improvements 20,987      
Cost Capitalized Subsequent to Acquisition 11,660      
Carrying Amount of Land 950      
Carrying Amount of Buildings and Improvements 32,647      
Accumulated Depreciation 2,632      
Triple-net | Abilene, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 990      
Initial Cost of Buildings & Improvements 8,187      
Cost Capitalized Subsequent to Acquisition 1,089      
Carrying Amount of Land 990      
Carrying Amount of Buildings and Improvements 9,276      
Accumulated Depreciation 1,000      
Triple-net | Aboite Twp, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,770      
Initial Cost of Buildings & Improvements 19,930      
Cost Capitalized Subsequent to Acquisition 1,601      
Carrying Amount of Land 1,770      
Carrying Amount of Buildings and Improvements 21,531      
Accumulated Depreciation 4,613      
Triple-net | Adelphi, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,429      
Initial Cost of Buildings & Improvements 4,312      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,429      
Carrying Amount of Buildings and Improvements 4,312      
Accumulated Depreciation 56      
Triple-net | Agawam, MA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 880      
Initial Cost of Buildings & Improvements 16,112      
Cost Capitalized Subsequent to Acquisition 2,134      
Carrying Amount of Land 880      
Carrying Amount of Buildings and Improvements 18,246      
Accumulated Depreciation 8,048      
Triple-net | Akron, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 633      
Initial Cost of Buildings & Improvements 3,003      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 633      
Carrying Amount of Buildings and Improvements 3,003      
Accumulated Depreciation 37      
Triple-net | Albertville, AL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 170      
Initial Cost of Buildings & Improvements 6,203      
Cost Capitalized Subsequent to Acquisition 353      
Carrying Amount of Land 176      
Carrying Amount of Buildings and Improvements 6,550      
Accumulated Depreciation 1,796      
Triple-net | Alexandria, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,452      
Initial Cost of Buildings & Improvements 6,829      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,452      
Carrying Amount of Buildings and Improvements 6,829      
Accumulated Depreciation 81      
Triple-net | Allen Park, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,767      
Initial Cost of Buildings & Improvements 5,027      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,767      
Carrying Amount of Buildings and Improvements 5,027      
Accumulated Depreciation 60      
Triple-net | Allentown, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 494      
Initial Cost of Buildings & Improvements 11,849      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 494      
Carrying Amount of Buildings and Improvements 11,849      
Accumulated Depreciation 138      
Triple-net | Allentown, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,491      
Initial Cost of Buildings & Improvements 4,823      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,491      
Carrying Amount of Buildings and Improvements 4,823      
Accumulated Depreciation 59      
Triple-net | Ames, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 330      
Initial Cost of Buildings & Improvements 8,870      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 330      
Carrying Amount of Buildings and Improvements 8,870      
Accumulated Depreciation 2,075      
Triple-net | Ankeny, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,129      
Initial Cost of Buildings & Improvements 10,270      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,129      
Carrying Amount of Buildings and Improvements 10,270      
Accumulated Depreciation 813      
Triple-net | Ann Arbor, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,172      
Initial Cost of Buildings & Improvements 11,127      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,172      
Carrying Amount of Buildings and Improvements 11,127      
Accumulated Depreciation 140      
Triple-net | Annandale, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,687      
Initial Cost of Buildings & Improvements 18,980      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,687      
Carrying Amount of Buildings and Improvements 18,980      
Accumulated Depreciation 216      
Triple-net | Arlington, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,660      
Initial Cost of Buildings & Improvements 37,395      
Cost Capitalized Subsequent to Acquisition 1,825      
Carrying Amount of Land 1,660      
Carrying Amount of Buildings and Improvements 39,220      
Accumulated Depreciation 9,668      
Triple-net | Arlington, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,016      
Initial Cost of Buildings & Improvements 8,805      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,016      
Carrying Amount of Buildings and Improvements 8,805      
Accumulated Depreciation 102      
Triple-net | Asheboro, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Buildings & Improvements 5,032      
Cost Capitalized Subsequent to Acquisition 165      
Carrying Amount of Land 290      
Carrying Amount of Buildings and Improvements 5,197      
Accumulated Depreciation 2,142      
Triple-net | Asheville, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 204      
Initial Cost of Buildings & Improvements 3,489      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 204      
Carrying Amount of Buildings and Improvements 3,489      
Accumulated Depreciation 1,858      
Triple-net | Asheville, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 280      
Initial Cost of Buildings & Improvements 1,955      
Cost Capitalized Subsequent to Acquisition 351      
Carrying Amount of Land 280      
Carrying Amount of Buildings and Improvements 2,306      
Accumulated Depreciation 1,034      
Triple-net | Atchison, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 140      
Initial Cost of Buildings & Improvements 5,610      
Cost Capitalized Subsequent to Acquisition 23      
Carrying Amount of Land 140      
Carrying Amount of Buildings and Improvements 5,633      
Accumulated Depreciation 475      
Triple-net | Atlanta, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,058      
Initial Cost of Buildings & Improvements 14,914      
Cost Capitalized Subsequent to Acquisition 1,214      
Carrying Amount of Land 2,080      
Carrying Amount of Buildings and Improvements 16,106      
Accumulated Depreciation 11,826      
Triple-net | Aurora, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,760      
Initial Cost of Buildings & Improvements 14,148      
Cost Capitalized Subsequent to Acquisition 106      
Carrying Amount of Land 1,760      
Carrying Amount of Buildings and Improvements 14,254      
Accumulated Depreciation 3,369      
Triple-net | Aurora, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,440      
Initial Cost of Buildings & Improvements 28,172      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,440      
Carrying Amount of Buildings and Improvements 28,172      
Accumulated Depreciation 11,394      
Triple-net | Austin, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 880      
Initial Cost of Buildings & Improvements 9,520      
Cost Capitalized Subsequent to Acquisition 1,299      
Carrying Amount of Land 885      
Carrying Amount of Buildings and Improvements 10,814      
Accumulated Depreciation 5,784      
Triple-net | Austin, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,691      
Initial Cost of Buildings & Improvements 5,006      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,691      
Carrying Amount of Buildings and Improvements 5,006      
Accumulated Depreciation 78      
Triple-net | Avon, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,830      
Initial Cost of Buildings & Improvements 14,470      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,830      
Carrying Amount of Buildings and Improvements 14,470      
Accumulated Depreciation 3,534      
Triple-net | Avon, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 900      
Initial Cost of Buildings & Improvements 19,444      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 900      
Carrying Amount of Buildings and Improvements 19,444      
Accumulated Depreciation 2,329      
Triple-net | Avon, CT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,132      
Initial Cost of Buildings & Improvements 7,627      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,132      
Carrying Amount of Buildings and Improvements 7,627      
Accumulated Depreciation 109      
Triple-net | Avon Lake, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 790      
Initial Cost of Buildings & Improvements 10,421      
Cost Capitalized Subsequent to Acquisition 5,822      
Carrying Amount of Land 790      
Carrying Amount of Buildings and Improvements 16,243      
Accumulated Depreciation 3,136      
Triple-net | Baldwin City, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 190      
Initial Cost of Buildings & Improvements 4,810      
Cost Capitalized Subsequent to Acquisition 55      
Carrying Amount of Land 190      
Carrying Amount of Buildings and Improvements 4,865      
Accumulated Depreciation 420      
Triple-net | Baltimore, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,306      
Initial Cost of Buildings & Improvements 4,305      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,306      
Carrying Amount of Buildings and Improvements 4,305      
Accumulated Depreciation 55      
Triple-net | Baltimore, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,069      
Initial Cost of Buildings & Improvements 3,150      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,069      
Carrying Amount of Buildings and Improvements 3,150      
Accumulated Depreciation 43      
Triple-net | Barberton, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,307      
Initial Cost of Buildings & Improvements 9,313      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,307      
Carrying Amount of Buildings and Improvements 9,313      
Accumulated Depreciation 108      
Triple-net | Bartlesville, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 100      
Initial Cost of Buildings & Improvements 1,380      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 100      
Carrying Amount of Buildings and Improvements 1,380      
Accumulated Depreciation 828      
Triple-net | Battle Creek, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 857      
Initial Cost of Buildings & Improvements 1,822      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 857      
Carrying Amount of Buildings and Improvements 1,822      
Accumulated Depreciation 30      
Triple-net | Bay City, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 633      
Initial Cost of Buildings & Improvements 2,620      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 633      
Carrying Amount of Buildings and Improvements 2,620      
Accumulated Depreciation 35      
Triple-net | Bedford, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 637      
Initial Cost of Buildings & Improvements 4,434      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 637      
Carrying Amount of Buildings and Improvements 4,434      
Accumulated Depreciation 61      
Triple-net | Bellingham, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,500      
Initial Cost of Buildings & Improvements 19,861      
Cost Capitalized Subsequent to Acquisition 396      
Carrying Amount of Land 1,507      
Carrying Amount of Buildings and Improvements 20,250      
Accumulated Depreciation 5,450      
Triple-net | Benbrook, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,550      
Initial Cost of Buildings & Improvements 13,553      
Cost Capitalized Subsequent to Acquisition 2,657      
Carrying Amount of Land 1,550      
Carrying Amount of Buildings and Improvements 16,210      
Accumulated Depreciation 3,016      
Triple-net | Bethel Park, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,700      
Initial Cost of Buildings & Improvements 16,007      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,700      
Carrying Amount of Buildings and Improvements 16,007      
Accumulated Depreciation 4,274      
Triple-net | Bethel Park, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,008      
Initial Cost of Buildings & Improvements 6,742      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,008      
Carrying Amount of Buildings and Improvements 6,742      
Accumulated Depreciation 83      
Triple-net | Bethesda, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,218      
Initial Cost of Buildings & Improvements 6,871      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,218      
Carrying Amount of Buildings and Improvements 6,871      
Accumulated Depreciation 78      
Triple-net | Bethlehem, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,191      
Initial Cost of Buildings & Improvements 16,892      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,191      
Carrying Amount of Buildings and Improvements 16,892      
Accumulated Depreciation 187      
Triple-net | Bethlehem, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,143      
Initial Cost of Buildings & Improvements 13,592      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,143      
Carrying Amount of Buildings and Improvements 13,592      
Accumulated Depreciation 152      
Triple-net | Beverly Hills, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,000      
Initial Cost of Buildings & Improvements 13,385      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 6,000      
Carrying Amount of Buildings and Improvements 13,385      
Accumulated Depreciation 1,420      
Triple-net | Bexleyheath, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,750      
Initial Cost of Buildings & Improvements 10,807      
Cost Capitalized Subsequent to Acquisition 493      
Carrying Amount of Land 3,877      
Carrying Amount of Buildings and Improvements 11,173      
Accumulated Depreciation 1,210      
Triple-net | Bingham Farms, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 781      
Initial Cost of Buildings & Improvements 15,676      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 781      
Carrying Amount of Buildings and Improvements 15,676      
Accumulated Depreciation 180      
Triple-net | Birmingham, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,647      
Initial Cost of Buildings & Improvements 14,853      
Cost Capitalized Subsequent to Acquisition 558      
Carrying Amount of Land 1,703      
Carrying Amount of Buildings and Improvements 15,355      
Accumulated Depreciation 1,491      
Triple-net | Birmingham, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,591      
Initial Cost of Buildings & Improvements 19,092      
Cost Capitalized Subsequent to Acquisition 700      
Carrying Amount of Land 1,645      
Carrying Amount of Buildings and Improvements 19,738      
Accumulated Depreciation 1,888      
Triple-net | Birmingham, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,462      
Initial Cost of Buildings & Improvements 9,056      
Cost Capitalized Subsequent to Acquisition 355      
Carrying Amount of Land 1,511      
Carrying Amount of Buildings and Improvements 9,362      
Accumulated Depreciation 923      
Triple-net | Birmingham, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,184      
Initial Cost of Buildings & Improvements 10,085      
Cost Capitalized Subsequent to Acquisition 381      
Carrying Amount of Land 1,224      
Carrying Amount of Buildings and Improvements 10,426      
Accumulated Depreciation 1,005      
Triple-net | Bloomington, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 670      
Initial Cost of Buildings & Improvements 17,423      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 670      
Carrying Amount of Buildings and Improvements 17,423      
Accumulated Depreciation 1,651      
Triple-net | Boardman, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,200      
Initial Cost of Buildings & Improvements 12,800      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,200      
Carrying Amount of Buildings and Improvements 12,800      
Accumulated Depreciation 4,308      
Triple-net | Boca Raton, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,200      
Initial Cost of Buildings & Improvements 4,976      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,200      
Carrying Amount of Buildings and Improvements 4,976      
Accumulated Depreciation 74      
Triple-net | Boca Raton, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,826      
Initial Cost of Buildings & Improvements 4,063      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,826      
Carrying Amount of Buildings and Improvements 4,063      
Accumulated Depreciation 54      
Triple-net | Boulder, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,601      
Initial Cost of Buildings & Improvements 21,371      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,601      
Carrying Amount of Buildings and Improvements 21,371      
Accumulated Depreciation 263      
Triple-net | Bowling Green, KY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,800      
Initial Cost of Buildings & Improvements 26,700      
Cost Capitalized Subsequent to Acquisition 149      
Carrying Amount of Land 3,800      
Carrying Amount of Buildings and Improvements 26,849      
Accumulated Depreciation 7,094      
Triple-net | Boynton Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,138      
Initial Cost of Buildings & Improvements 10,204      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,138      
Carrying Amount of Buildings and Improvements 10,204      
Accumulated Depreciation 128      
Triple-net | Boynton Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,804      
Initial Cost of Buildings & Improvements 14,226      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,804      
Carrying Amount of Buildings and Improvements 14,226      
Accumulated Depreciation 163      
Triple-net | Bracknell, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,081      
Initial Cost of Buildings & Improvements 11,470      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,081      
Carrying Amount of Buildings and Improvements 11,470      
Accumulated Depreciation 405      
Triple-net | Bradenton, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 252      
Initial Cost of Buildings & Improvements 3,298      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 252      
Carrying Amount of Buildings and Improvements 3,298      
Accumulated Depreciation 1,991      
Triple-net | Bradenton, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 480      
Initial Cost of Buildings & Improvements 9,953      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 480      
Carrying Amount of Buildings and Improvements 9,953      
Accumulated Depreciation 1,714      
Triple-net | Braintree, MA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 170      
Initial Cost of Buildings & Improvements 7,157      
Cost Capitalized Subsequent to Acquisition 1,290      
Carrying Amount of Land 170      
Carrying Amount of Buildings and Improvements 8,447      
Accumulated Depreciation 8,433      
Triple-net | Braintree, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 13,296      
Cost Capitalized Subsequent to Acquisition 450      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 13,746      
Accumulated Depreciation 1,570      
Triple-net | Brandon, MS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,220      
Initial Cost of Buildings & Improvements 10,241      
Cost Capitalized Subsequent to Acquisition 8      
Carrying Amount of Land 1,220      
Carrying Amount of Buildings and Improvements 10,249      
Accumulated Depreciation 2,291      
Triple-net | Brecksville, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 990      
Initial Cost of Buildings & Improvements 19,353      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 990      
Carrying Amount of Buildings and Improvements 19,353      
Accumulated Depreciation 2,309      
Triple-net | Brentwood, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 36,589      
Initial Cost of Land 8,537      
Initial Cost of Buildings & Improvements 45,869      
Cost Capitalized Subsequent to Acquisition 1,998      
Carrying Amount of Land 8,826      
Carrying Amount of Buildings and Improvements 47,578      
Accumulated Depreciation 2,534      
Triple-net | Brick, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,290      
Initial Cost of Buildings & Improvements 25,247      
Cost Capitalized Subsequent to Acquisition 996      
Carrying Amount of Land 1,290      
Carrying Amount of Buildings and Improvements 26,243      
Accumulated Depreciation 5,086      
Triple-net | Bridgewater, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,800      
Initial Cost of Buildings & Improvements 31,810      
Cost Capitalized Subsequent to Acquisition 1,397      
Carrying Amount of Land 1,800      
Carrying Amount of Buildings and Improvements 33,207      
Accumulated Depreciation 6,365      
Triple-net | Brookfield, WI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,300      
Initial Cost of Buildings & Improvements 12,830      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,300      
Carrying Amount of Buildings and Improvements 12,830      
Accumulated Depreciation 1,779      
Triple-net | Brooks, AB        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 1,757      
Initial Cost of Land 376      
Initial Cost of Buildings & Improvements 4,951      
Cost Capitalized Subsequent to Acquisition 80      
Carrying Amount of Land 381      
Carrying Amount of Buildings and Improvements 5,026      
Accumulated Depreciation 586      
Triple-net | Bucyrus, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,119      
Initial Cost of Buildings & Improvements 2,612      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,119      
Carrying Amount of Buildings and Improvements 2,612      
Accumulated Depreciation 37      
Triple-net | Burleson, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 670      
Initial Cost of Buildings & Improvements 13,985      
Cost Capitalized Subsequent to Acquisition 2,105      
Carrying Amount of Land 670      
Carrying Amount of Buildings and Improvements 16,090      
Accumulated Depreciation 3,142      
Triple-net | Burlington, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 280      
Initial Cost of Buildings & Improvements 4,297      
Cost Capitalized Subsequent to Acquisition 707      
Carrying Amount of Land 280      
Carrying Amount of Buildings and Improvements 5,004      
Accumulated Depreciation 2,037      
Triple-net | Burlington, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 460      
Initial Cost of Buildings & Improvements 5,467      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 460      
Carrying Amount of Buildings and Improvements 5,467      
Accumulated Depreciation 2,271      
Triple-net | Burlington, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,700      
Initial Cost of Buildings & Improvements 12,554      
Cost Capitalized Subsequent to Acquisition 501      
Carrying Amount of Land 1,700      
Carrying Amount of Buildings and Improvements 13,055      
Accumulated Depreciation 3,231      
Triple-net | Burlington, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,170      
Initial Cost of Buildings & Improvements 19,205      
Cost Capitalized Subsequent to Acquisition 172      
Carrying Amount of Land 1,170      
Carrying Amount of Buildings and Improvements 19,377      
Accumulated Depreciation 4,109      
Triple-net | Burnaby, BC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 7,326      
Initial Cost of Land 7,623      
Initial Cost of Buildings & Improvements 13,844      
Cost Capitalized Subsequent to Acquisition 320      
Carrying Amount of Land 7,736      
Carrying Amount of Buildings and Improvements 14,051      
Accumulated Depreciation 1,664      
Triple-net | Calgary, AB        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 14,921      
Initial Cost of Land 2,341      
Initial Cost of Buildings & Improvements 42,768      
Cost Capitalized Subsequent to Acquisition 726      
Carrying Amount of Land 2,376      
Carrying Amount of Buildings and Improvements 43,459      
Accumulated Depreciation 4,882      
Triple-net | Calgary, AB        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 24,745      
Initial Cost of Land 4,569      
Initial Cost of Buildings & Improvements 70,199      
Cost Capitalized Subsequent to Acquisition 1,109      
Carrying Amount of Land 4,636      
Carrying Amount of Buildings and Improvements 71,241      
Accumulated Depreciation 7,933      
Triple-net | Camberley, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 9,974      
Initial Cost of Buildings & Improvements 39,168      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 9,974      
Carrying Amount of Buildings and Improvements 39,168      
Accumulated Depreciation 1,574      
Triple-net | Camp Hill, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 517      
Initial Cost of Buildings & Improvements 3,597      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 517      
Carrying Amount of Buildings and Improvements 3,597      
Accumulated Depreciation 43      
Triple-net | Canonsburg, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 911      
Initial Cost of Buildings & Improvements 4,830      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 911      
Carrying Amount of Buildings and Improvements 4,830      
Accumulated Depreciation 63      
Triple-net | Canton, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 300      
Initial Cost of Buildings & Improvements 2,098      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 300      
Carrying Amount of Buildings and Improvements 2,098      
Accumulated Depreciation 1,115      
Triple-net | Canton, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,399      
Initial Cost of Buildings & Improvements 16,971      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,399      
Carrying Amount of Buildings and Improvements 16,971      
Accumulated Depreciation 195      
Triple-net | Cape Coral, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 530      
Initial Cost of Buildings & Improvements 3,281      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 530      
Carrying Amount of Buildings and Improvements 3,281      
Accumulated Depreciation 1,473      
Triple-net | Cape Coral, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 8,337      
Initial Cost of Land 760      
Initial Cost of Buildings & Improvements 18,868      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 760      
Carrying Amount of Buildings and Improvements 18,868      
Accumulated Depreciation 3,282      
Triple-net | Cape May Court House, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,440      
Initial Cost of Buildings & Improvements 17,002      
Cost Capitalized Subsequent to Acquisition 1,775      
Carrying Amount of Land 1,440      
Carrying Amount of Buildings and Improvements 18,777      
Accumulated Depreciation 2,265      
Triple-net | Carlisle, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 978      
Initial Cost of Buildings & Improvements 8,207      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 978      
Carrying Amount of Buildings and Improvements 8,207      
Accumulated Depreciation 100      
Triple-net | Carmel, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,700      
Initial Cost of Buildings & Improvements 19,491      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 1,700      
Carrying Amount of Buildings and Improvements 19,492      
Accumulated Depreciation 1,971      
Triple-net | Carmel, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,583      
Initial Cost of Buildings & Improvements 6,071      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,583      
Carrying Amount of Buildings and Improvements 6,071      
Accumulated Depreciation 80      
Triple-net | Carmel, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 2,296      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 2,296      
Accumulated Depreciation 25      
Triple-net | Carrollton, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,010      
Initial Cost of Buildings & Improvements 19,549      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,010      
Carrying Amount of Buildings and Improvements 19,549      
Accumulated Depreciation 1,194      
Triple-net | Cary, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,500      
Initial Cost of Buildings & Improvements 4,350      
Cost Capitalized Subsequent to Acquisition 986      
Carrying Amount of Land 1,500      
Carrying Amount of Buildings and Improvements 5,336      
Accumulated Depreciation 2,698      
Triple-net | Castleton, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 920      
Initial Cost of Buildings & Improvements 15,137      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 920      
Carrying Amount of Buildings and Improvements 15,137      
Accumulated Depreciation 1,885      
Triple-net | Cedar Grove, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,850      
Initial Cost of Buildings & Improvements 27,737      
Cost Capitalized Subsequent to Acquisition 20      
Carrying Amount of Land 2,850      
Carrying Amount of Buildings and Improvements 27,757      
Accumulated Depreciation 5,981      
Triple-net | Cedar Rapids, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 596      
Initial Cost of Buildings & Improvements 9,354      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 596      
Carrying Amount of Buildings and Improvements 9,354      
Accumulated Depreciation 105      
Triple-net | Centerville, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 920      
Initial Cost of Buildings & Improvements 3,960      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 920      
Carrying Amount of Buildings and Improvements 3,960      
Accumulated Depreciation 69      
Triple-net | Centreville, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 600      
Initial Cost of Buildings & Improvements 14,602      
Cost Capitalized Subsequent to Acquisition 241      
Carrying Amount of Land 600      
Carrying Amount of Buildings and Improvements 14,843      
Accumulated Depreciation 3,242      
Triple-net | Chagrin Falls, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 832      
Initial Cost of Buildings & Improvements 10,841      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 832      
Carrying Amount of Buildings and Improvements 10,841      
Accumulated Depreciation 130      
Triple-net | Chambersburg, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,373      
Initial Cost of Buildings & Improvements 8,864      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,373      
Carrying Amount of Buildings and Improvements 8,864      
Accumulated Depreciation 112      
Triple-net | Chapel Hill, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 354      
Initial Cost of Buildings & Improvements 2,646      
Cost Capitalized Subsequent to Acquisition 783      
Carrying Amount of Land 354      
Carrying Amount of Buildings and Improvements 3,429      
Accumulated Depreciation 1,508      
Triple-net | Charleston, SC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,333      
Initial Cost of Buildings & Improvements 5,556      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,333      
Carrying Amount of Buildings and Improvements 5,556      
Accumulated Depreciation 67      
Triple-net | Charleston, WV        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 440      
Initial Cost of Buildings & Improvements 17,575      
Cost Capitalized Subsequent to Acquisition 306      
Carrying Amount of Land 440      
Carrying Amount of Buildings and Improvements 17,881      
Accumulated Depreciation 3,680      
Triple-net | Chatham, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 320      
Initial Cost of Buildings & Improvements 14,039      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 320      
Carrying Amount of Buildings and Improvements 14,039      
Accumulated Depreciation 1,814      
Triple-net | Cherry Hill, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,416      
Initial Cost of Buildings & Improvements 9,874      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,416      
Carrying Amount of Buildings and Improvements 9,874      
Accumulated Depreciation 123      
Triple-net | Chester, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,320      
Initial Cost of Buildings & Improvements 18,127      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,320      
Carrying Amount of Buildings and Improvements 18,127      
Accumulated Depreciation 2,292      
Triple-net | Chevy Chase, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,515      
Initial Cost of Buildings & Improvements 8,688      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,515      
Carrying Amount of Buildings and Improvements 8,688      
Accumulated Depreciation 102      
Triple-net | Chickasha, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 85      
Initial Cost of Buildings & Improvements 1,395      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 85      
Carrying Amount of Buildings and Improvements 1,395      
Accumulated Depreciation 831      
Triple-net | Chillicothe, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,145      
Initial Cost of Buildings & Improvements 8,997      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,145      
Carrying Amount of Buildings and Improvements 8,997      
Accumulated Depreciation 105      
Triple-net | Cincinnati, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 912      
Initial Cost of Buildings & Improvements 14,014      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 912      
Carrying Amount of Buildings and Improvements 14,014      
Accumulated Depreciation 166      
Triple-net | Citrus Heights, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 5,207      
Initial Cost of Buildings & Improvements 31,725      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 5,207      
Carrying Amount of Buildings and Improvements 31,725      
Accumulated Depreciation 354      
Triple-net | Claremore, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 155      
Initial Cost of Buildings & Improvements 1,427      
Cost Capitalized Subsequent to Acquisition 6,130      
Carrying Amount of Land 155      
Carrying Amount of Buildings and Improvements 7,557      
Accumulated Depreciation 1,597      
Triple-net | Clarksville, TN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 330      
Initial Cost of Buildings & Improvements 2,292      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 330      
Carrying Amount of Buildings and Improvements 2,292      
Accumulated Depreciation 1,213      
Triple-net | Clayton, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 520      
Initial Cost of Buildings & Improvements 15,733      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 520      
Carrying Amount of Buildings and Improvements 15,733      
Accumulated Depreciation 1,771      
Triple-net | Cleburne, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 520      
Initial Cost of Buildings & Improvements 5,369      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 520      
Carrying Amount of Buildings and Improvements 5,369      
Accumulated Depreciation 1,669      
Triple-net | Clevedon, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,838      
Initial Cost of Buildings & Improvements 16,927      
Cost Capitalized Subsequent to Acquisition 667      
Carrying Amount of Land 2,933      
Carrying Amount of Buildings and Improvements 17,499      
Accumulated Depreciation 1,998      
Triple-net | Cobham, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 9,808      
Initial Cost of Buildings & Improvements 24,991      
Cost Capitalized Subsequent to Acquisition 1,176      
Carrying Amount of Land 10,139      
Carrying Amount of Buildings and Improvements 25,836      
Accumulated Depreciation 3,657      
Triple-net | Colchester, CT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 980      
Initial Cost of Buildings & Improvements 4,860      
Cost Capitalized Subsequent to Acquisition 544      
Carrying Amount of Land 980      
Carrying Amount of Buildings and Improvements 5,404      
Accumulated Depreciation 1,444      
Triple-net | Colorado Springs, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,280      
Initial Cost of Buildings & Improvements 62,168      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,280      
Carrying Amount of Buildings and Improvements 62,168      
Accumulated Depreciation 5,328      
Triple-net | Colorado Springs, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,730      
Initial Cost of Buildings & Improvements 25,493      
Cost Capitalized Subsequent to Acquisition 693      
Carrying Amount of Land 1,730      
Carrying Amount of Buildings and Improvements 26,186      
Accumulated Depreciation 1,972      
Triple-net | Columbia, TN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 341      
Initial Cost of Buildings & Improvements 2,295      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 341      
Carrying Amount of Buildings and Improvements 2,295      
Accumulated Depreciation 1,218      
Triple-net | Columbia, SC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,699      
Initial Cost of Buildings & Improvements 2,320      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,699      
Carrying Amount of Buildings and Improvements 2,320      
Accumulated Depreciation 30      
Triple-net | Columbia Heights, MN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 825      
Initial Cost of Buildings & Improvements 14,175      
Cost Capitalized Subsequent to Acquisition 163      
Carrying Amount of Land 825      
Carrying Amount of Buildings and Improvements 14,338      
Accumulated Depreciation 2,738      
Triple-net | Columbus, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 610      
Initial Cost of Buildings & Improvements 3,190      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 610      
Carrying Amount of Buildings and Improvements 3,190      
Accumulated Depreciation 764      
Triple-net | Concord, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 550      
Initial Cost of Buildings & Improvements 3,921      
Cost Capitalized Subsequent to Acquisition 55      
Carrying Amount of Land 550      
Carrying Amount of Buildings and Improvements 3,976      
Accumulated Depreciation 1,782      
Triple-net | Concord, NH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,760      
Initial Cost of Buildings & Improvements 43,179      
Cost Capitalized Subsequent to Acquisition 634      
Carrying Amount of Land 1,760      
Carrying Amount of Buildings and Improvements 43,813      
Accumulated Depreciation 9,027      
Triple-net | Congleton, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,036      
Initial Cost of Buildings & Improvements 5,120      
Cost Capitalized Subsequent to Acquisition 241      
Carrying Amount of Land 2,104      
Carrying Amount of Buildings and Improvements 5,293      
Accumulated Depreciation 575      
Triple-net | Conroe, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 980      
Initial Cost of Buildings & Improvements 7,771      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 980      
Carrying Amount of Buildings and Improvements 7,771      
Accumulated Depreciation 1,965      
Triple-net | Coppell, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,550      
Initial Cost of Buildings & Improvements 8,386      
Cost Capitalized Subsequent to Acquisition 100      
Carrying Amount of Land 1,550      
Carrying Amount of Buildings and Improvements 8,486      
Accumulated Depreciation 1,347      
Triple-net | Corby, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,228      
Initial Cost of Buildings & Improvements 5,144      
Cost Capitalized Subsequent to Acquisition 398      
Carrying Amount of Land 1,157      
Carrying Amount of Buildings and Improvements 5,613      
Accumulated Depreciation 248      
Triple-net | Coventry, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,962      
Initial Cost of Buildings & Improvements 13,830      
Cost Capitalized Subsequent to Acquisition 533      
Carrying Amount of Land 2,028      
Carrying Amount of Buildings and Improvements 14,297      
Accumulated Depreciation 1,430      
Triple-net | Crawfordsville, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 720      
Initial Cost of Buildings & Improvements 17,239      
Cost Capitalized Subsequent to Acquisition 1,426      
Carrying Amount of Land 720      
Carrying Amount of Buildings and Improvements 18,665      
Accumulated Depreciation 2,245      
Triple-net | Dallastown, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,377      
Initial Cost of Buildings & Improvements 16,802      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,377      
Carrying Amount of Buildings and Improvements 16,802      
Accumulated Depreciation 200      
Triple-net | Danville, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 410      
Initial Cost of Buildings & Improvements 3,954      
Cost Capitalized Subsequent to Acquisition 722      
Carrying Amount of Land 410      
Carrying Amount of Buildings and Improvements 4,676      
Accumulated Depreciation 1,963      
Triple-net | Danville, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 240      
Initial Cost of Buildings & Improvements 8,436      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 240      
Carrying Amount of Buildings and Improvements 8,436      
Accumulated Depreciation 1,087      
Triple-net | Daphne, AL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,880      
Initial Cost of Buildings & Improvements 8,670      
Cost Capitalized Subsequent to Acquisition 384      
Carrying Amount of Land 2,880      
Carrying Amount of Buildings and Improvements 9,054      
Accumulated Depreciation 1,625      
Triple-net | Davenport, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 566      
Initial Cost of Buildings & Improvements 2,017      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 566      
Carrying Amount of Buildings and Improvements 2,017      
Accumulated Depreciation 25      
Triple-net | Davenport, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 910      
Initial Cost of Buildings & Improvements 20,043      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 910      
Carrying Amount of Buildings and Improvements 20,043      
Accumulated Depreciation 231      
Triple-net | Dayton, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,188      
Initial Cost of Buildings & Improvements 5,414      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,188      
Carrying Amount of Buildings and Improvements 5,414      
Accumulated Depreciation 69      
Triple-net | Dearborn Heights, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,197      
Initial Cost of Buildings & Improvements 3,396      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,197      
Carrying Amount of Buildings and Improvements 3,396      
Accumulated Depreciation 47      
Triple-net | Delray Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,413      
Initial Cost of Buildings & Improvements 13,800      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,413      
Carrying Amount of Buildings and Improvements 13,800      
Accumulated Depreciation 152      
Triple-net | Delray Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,158      
Initial Cost of Buildings & Improvements 13,576      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,158      
Carrying Amount of Buildings and Improvements 13,576      
Accumulated Depreciation 162      
Triple-net | Delray Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,125      
Initial Cost of Buildings & Improvements 11,844      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,125      
Carrying Amount of Buildings and Improvements 11,844      
Accumulated Depreciation 146      
Triple-net | Denton, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,760      
Initial Cost of Buildings & Improvements 8,305      
Cost Capitalized Subsequent to Acquisition 100      
Carrying Amount of Land 1,760      
Carrying Amount of Buildings and Improvements 8,405      
Accumulated Depreciation 1,799      
Triple-net | Denver, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,450      
Initial Cost of Buildings & Improvements 19,389      
Cost Capitalized Subsequent to Acquisition 3,133      
Carrying Amount of Land 1,450      
Carrying Amount of Buildings and Improvements 22,522      
Accumulated Depreciation 4,292      
Triple-net | Denver, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,222      
Initial Cost of Buildings & Improvements 24,811      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,222      
Carrying Amount of Buildings and Improvements 24,811      
Accumulated Depreciation 275      
Triple-net | Derby, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,359      
Initial Cost of Buildings & Improvements 8,539      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,359      
Carrying Amount of Buildings and Improvements 8,539      
Accumulated Depreciation 712      
Triple-net | Dover, DE        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 600      
Initial Cost of Buildings & Improvements 22,266      
Cost Capitalized Subsequent to Acquisition 141      
Carrying Amount of Land 600      
Carrying Amount of Buildings and Improvements 22,407      
Accumulated Depreciation 4,718      
Triple-net | Dublin, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,393      
Initial Cost of Buildings & Improvements 2,912      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,393      
Carrying Amount of Buildings and Improvements 2,912      
Accumulated Depreciation 42      
Triple-net | Dubuque, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 568      
Initial Cost of Buildings & Improvements 8,904      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 568      
Carrying Amount of Buildings and Improvements 8,904      
Accumulated Depreciation 100      
Triple-net | Dundalk, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,770      
Initial Cost of Buildings & Improvements 32,047      
Cost Capitalized Subsequent to Acquisition 784      
Carrying Amount of Land 1,770      
Carrying Amount of Buildings and Improvements 32,831      
Accumulated Depreciation 6,877      
Triple-net | Dunedin, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,883      
Initial Cost of Buildings & Improvements 13,329      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,883      
Carrying Amount of Buildings and Improvements 13,329      
Accumulated Depreciation 151      
Triple-net | Durham, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,476      
Initial Cost of Buildings & Improvements 10,659      
Cost Capitalized Subsequent to Acquisition 2,196      
Carrying Amount of Land 1,476      
Carrying Amount of Buildings and Improvements 12,855      
Accumulated Depreciation 11,898      
Triple-net | Eagan, MN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 16,470      
Initial Cost of Land 2,260      
Initial Cost of Buildings & Improvements 31,643      
Cost Capitalized Subsequent to Acquisition 300      
Carrying Amount of Land 2,260      
Carrying Amount of Buildings and Improvements 31,943      
Accumulated Depreciation 2,737      
Triple-net | East Brunswick, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,380      
Initial Cost of Buildings & Improvements 34,229      
Cost Capitalized Subsequent to Acquisition 849      
Carrying Amount of Land 1,380      
Carrying Amount of Buildings and Improvements 35,078      
Accumulated Depreciation 6,708      
Triple-net | Eastbourne, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,071      
Initial Cost of Buildings & Improvements 24,438      
Cost Capitalized Subsequent to Acquisition 964      
Carrying Amount of Land 4,209      
Carrying Amount of Buildings and Improvements 25,264      
Accumulated Depreciation 2,847      
Triple-net | Easton, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,109      
Initial Cost of Buildings & Improvements 7,502      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,109      
Carrying Amount of Buildings and Improvements 7,502      
Accumulated Depreciation 116      
Triple-net | Easton, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,430      
Initial Cost of Buildings & Improvements 13,400      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,430      
Carrying Amount of Buildings and Improvements 13,400      
Accumulated Depreciation 160      
Triple-net | Easton, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,620      
Initial Cost of Buildings & Improvements 10,052      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,620      
Carrying Amount of Buildings and Improvements 10,052      
Accumulated Depreciation 142      
Triple-net | Eden, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 390      
Initial Cost of Buildings & Improvements 4,877      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 390      
Carrying Amount of Buildings and Improvements 4,877      
Accumulated Depreciation 2,046      
Triple-net | Edmond, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 410      
Initial Cost of Buildings & Improvements 8,388      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 410      
Carrying Amount of Buildings and Improvements 8,388      
Accumulated Depreciation 1,543      
Triple-net | Edmond, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,810      
Initial Cost of Buildings & Improvements 14,849      
Cost Capitalized Subsequent to Acquisition 2,630      
Carrying Amount of Land 1,810      
Carrying Amount of Buildings and Improvements 17,479      
Accumulated Depreciation 2,118      
Triple-net | Edmond, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,650      
Initial Cost of Buildings & Improvements 25,167      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,650      
Carrying Amount of Buildings and Improvements 25,167      
Accumulated Depreciation 1,300      
Triple-net | Elizabeth City, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Buildings & Improvements 2,760      
Cost Capitalized Subsequent to Acquisition 2,011      
Carrying Amount of Land 200      
Carrying Amount of Buildings and Improvements 4,771      
Accumulated Depreciation 2,264      
Triple-net | Elk Grove Village, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,344      
Initial Cost of Buildings & Improvements 7,076      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,344      
Carrying Amount of Buildings and Improvements 7,076      
Accumulated Depreciation 88      
Triple-net | Elk Grove Village, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,733      
Initial Cost of Buildings & Improvements 18,751      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,733      
Carrying Amount of Buildings and Improvements 18,751      
Accumulated Depreciation 207      
Triple-net | Emeryville, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,560      
Initial Cost of Buildings & Improvements 57,491      
Cost Capitalized Subsequent to Acquisition 641      
Carrying Amount of Land 2,560      
Carrying Amount of Buildings and Improvements 58,132      
Accumulated Depreciation 6,734      
Triple-net | Englewood, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 930      
Initial Cost of Buildings & Improvements 4,514      
Cost Capitalized Subsequent to Acquisition 26      
Carrying Amount of Land 930      
Carrying Amount of Buildings and Improvements 4,540      
Accumulated Depreciation 1,075      
Triple-net | Epsom, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 36,932      
Initial Cost of Land 20,159      
Initial Cost of Buildings & Improvements 34,803      
Cost Capitalized Subsequent to Acquisition 2,053      
Carrying Amount of Land 20,840      
Carrying Amount of Buildings and Improvements 36,175      
Accumulated Depreciation 1,933      
Triple-net | Eureka, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 50      
Initial Cost of Buildings & Improvements 3,950      
Cost Capitalized Subsequent to Acquisition 71      
Carrying Amount of Land 50      
Carrying Amount of Buildings and Improvements 4,021      
Accumulated Depreciation 339      
Triple-net | Everett, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,400      
Initial Cost of Buildings & Improvements 5,476      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,400      
Carrying Amount of Buildings and Improvements 5,476      
Accumulated Depreciation 2,819      
Triple-net | Exton, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,600      
Initial Cost of Buildings & Improvements 27,267      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,600      
Carrying Amount of Buildings and Improvements 27,267      
Accumulated Depreciation 299      
Triple-net | Fairfax, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,827      
Initial Cost of Buildings & Improvements 17,309      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,827      
Carrying Amount of Buildings and Improvements 17,309      
Accumulated Depreciation 208      
Triple-net | Fairfax, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,099      
Initial Cost of Buildings & Improvements 17,620      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,099      
Carrying Amount of Buildings and Improvements 17,620      
Accumulated Depreciation 208      
Triple-net | Fairhope, AL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 570      
Initial Cost of Buildings & Improvements 9,119      
Cost Capitalized Subsequent to Acquisition 112      
Carrying Amount of Land 570      
Carrying Amount of Buildings and Improvements 9,231      
Accumulated Depreciation 1,656      
Triple-net | Fall River, MA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 620      
Initial Cost of Buildings & Improvements 5,829      
Cost Capitalized Subsequent to Acquisition 4,856      
Carrying Amount of Land 620      
Carrying Amount of Buildings and Improvements 10,685      
Accumulated Depreciation 5,463      
Triple-net | Fanwood, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,850      
Initial Cost of Buildings & Improvements 55,175      
Cost Capitalized Subsequent to Acquisition 1,123      
Carrying Amount of Land 2,850      
Carrying Amount of Buildings and Improvements 56,298      
Accumulated Depreciation 10,633      
Triple-net | Faribault, MN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 780      
Initial Cost of Buildings & Improvements 11,539      
Cost Capitalized Subsequent to Acquisition 300      
Carrying Amount of Land 780      
Carrying Amount of Buildings and Improvements 11,839      
Accumulated Depreciation 964      
Triple-net | Farmington, CT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,693      
Initial Cost of Buildings & Improvements 10,459      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,693      
Carrying Amount of Buildings and Improvements 10,459      
Accumulated Depreciation 128      
Triple-net | Farnborough, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,036      
Initial Cost of Buildings & Improvements 5,737      
Cost Capitalized Subsequent to Acquisition 262      
Carrying Amount of Land 2,104      
Carrying Amount of Buildings and Improvements 5,931      
Accumulated Depreciation 626      
Triple-net | Fayetteville, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,150      
Initial Cost of Buildings & Improvements 32,951      
Cost Capitalized Subsequent to Acquisition 2,013      
Carrying Amount of Land 2,150      
Carrying Amount of Buildings and Improvements 34,964      
Accumulated Depreciation 3,114      
Triple-net | Fayetteville, NY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 410      
Initial Cost of Buildings & Improvements 3,962      
Cost Capitalized Subsequent to Acquisition 500      
Carrying Amount of Land 410      
Carrying Amount of Buildings and Improvements 4,462      
Accumulated Depreciation 1,973      
Triple-net | Findlay, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Buildings & Improvements 1,800      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 200      
Carrying Amount of Buildings and Improvements 1,800      
Accumulated Depreciation 1,019      
Triple-net | Fishers, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,500      
Initial Cost of Buildings & Improvements 14,500      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,500      
Carrying Amount of Buildings and Improvements 14,500      
Accumulated Depreciation 3,540      
Triple-net | Fishersville, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 788      
Initial Cost of Buildings & Improvements 2,101      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 788      
Carrying Amount of Buildings and Improvements 2,101      
Accumulated Depreciation 437      
Triple-net | Flint, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,271      
Initial Cost of Buildings & Improvements 18,056      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,271      
Carrying Amount of Buildings and Improvements 18,056      
Accumulated Depreciation 202      
Triple-net | Florence, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 300      
Initial Cost of Buildings & Improvements 2,978      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 300      
Carrying Amount of Buildings and Improvements 2,978      
Accumulated Depreciation 1,332      
Triple-net | Florence, AL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 353      
Initial Cost of Buildings & Improvements 13,049      
Cost Capitalized Subsequent to Acquisition 223      
Carrying Amount of Land 385      
Carrying Amount of Buildings and Improvements 13,240      
Accumulated Depreciation 3,575      
Triple-net | Flourtown, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,800      
Initial Cost of Buildings & Improvements 14,830      
Cost Capitalized Subsequent to Acquisition 266      
Carrying Amount of Land 1,800      
Carrying Amount of Buildings and Improvements 15,096      
Accumulated Depreciation 3,297      
Triple-net | Flower Mound, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,800      
Initial Cost of Buildings & Improvements 8,414      
Cost Capitalized Subsequent to Acquisition 100      
Carrying Amount of Land 1,800      
Carrying Amount of Buildings and Improvements 8,514      
Accumulated Depreciation 1,539      
Triple-net | Floyd, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 680      
Initial Cost of Buildings & Improvements 3,618      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 680      
Carrying Amount of Buildings and Improvements 3,618      
Accumulated Depreciation 247      
Triple-net | Flushing, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 690      
Initial Cost of Buildings & Improvements 1,702      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 690      
Carrying Amount of Buildings and Improvements 1,702      
Accumulated Depreciation 32      
Triple-net | Flushing, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,415      
Initial Cost of Buildings & Improvements 8,536      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,415      
Carrying Amount of Buildings and Improvements 8,536      
Accumulated Depreciation 105      
Triple-net | Folsom, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 33,600      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,582      
Carrying Amount of Buildings and Improvements 32,018      
Accumulated Depreciation 5,004      
Triple-net | Forest City, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 320      
Initial Cost of Buildings & Improvements 4,497      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 320      
Carrying Amount of Buildings and Improvements 4,497      
Accumulated Depreciation 1,902      
Triple-net | Fort Ashby, WV        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 330      
Initial Cost of Buildings & Improvements 19,566      
Cost Capitalized Subsequent to Acquisition 356      
Carrying Amount of Land 330      
Carrying Amount of Buildings and Improvements 19,922      
Accumulated Depreciation 4,054      
Triple-net | Fort Collins, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,680      
Initial Cost of Buildings & Improvements 58,608      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,680      
Carrying Amount of Buildings and Improvements 58,608      
Accumulated Depreciation 5,006      
Triple-net | Fort Collins, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 890      
Initial Cost of Buildings & Improvements 4,532      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 890      
Carrying Amount of Buildings and Improvements 4,532      
Accumulated Depreciation 89      
Triple-net | Fort Wayne, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 170      
Initial Cost of Buildings & Improvements 8,232      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 170      
Carrying Amount of Buildings and Improvements 8,232      
Accumulated Depreciation 2,649      
Triple-net | Fort Worth, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 450      
Initial Cost of Buildings & Improvements 13,615      
Cost Capitalized Subsequent to Acquisition 5,086      
Carrying Amount of Land 450      
Carrying Amount of Buildings and Improvements 18,701      
Accumulated Depreciation 4,213      
Triple-net | Fort Worth, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,080      
Initial Cost of Buildings & Improvements 27,888      
Cost Capitalized Subsequent to Acquisition 2,401      
Carrying Amount of Land 2,080      
Carrying Amount of Buildings and Improvements 30,289      
Accumulated Depreciation 7,355      
Triple-net | Fountain Valley, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 5,259      
Initial Cost of Buildings & Improvements 9,379      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 5,259      
Carrying Amount of Buildings and Improvements 9,379      
Accumulated Depreciation 110      
Triple-net | Franconia, NH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 360      
Initial Cost of Buildings & Improvements 11,320      
Cost Capitalized Subsequent to Acquisition 70      
Carrying Amount of Land 360      
Carrying Amount of Buildings and Improvements 11,390      
Accumulated Depreciation 2,433      
Triple-net | Fredericksburg, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,000      
Initial Cost of Buildings & Improvements 20,000      
Cost Capitalized Subsequent to Acquisition 1,200      
Carrying Amount of Land 1,000      
Carrying Amount of Buildings and Improvements 21,200      
Accumulated Depreciation 7,399      
Triple-net | Fredericksburg, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,130      
Initial Cost of Buildings & Improvements 23,202      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,130      
Carrying Amount of Buildings and Improvements 23,202      
Accumulated Depreciation 2,704      
Triple-net | Fresno, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,500      
Initial Cost of Buildings & Improvements 35,800      
Cost Capitalized Subsequent to Acquisition 118      
Carrying Amount of Land 2,500      
Carrying Amount of Buildings and Improvements 35,918      
Accumulated Depreciation 9,497      
Triple-net | Ft. Myers, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,110      
Initial Cost of Buildings & Improvements 10,562      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,110      
Carrying Amount of Buildings and Improvements 10,562      
Accumulated Depreciation 128      
Triple-net | Ft. Myers, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,139      
Initial Cost of Buildings & Improvements 18,240      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,139      
Carrying Amount of Buildings and Improvements 18,240      
Accumulated Depreciation 215      
Triple-net | Ft. Myers, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,502      
Initial Cost of Buildings & Improvements 9,744      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,502      
Carrying Amount of Buildings and Improvements 9,744      
Accumulated Depreciation 139      
Triple-net | Galesburg, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,708      
Initial Cost of Buildings & Improvements 3,841      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,708      
Carrying Amount of Buildings and Improvements 3,841      
Accumulated Depreciation 46      
Triple-net | Gardner, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Buildings & Improvements 2,800      
Cost Capitalized Subsequent to Acquisition 93      
Carrying Amount of Land 200      
Carrying Amount of Buildings and Improvements 2,893      
Accumulated Depreciation 259      
Triple-net | Gardnerville, NV        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,143      
Initial Cost of Buildings & Improvements 10,831      
Cost Capitalized Subsequent to Acquisition 1,118      
Carrying Amount of Land 1,164      
Carrying Amount of Buildings and Improvements 11,928      
Accumulated Depreciation 8,904      
Triple-net | Gastonia, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 470      
Initial Cost of Buildings & Improvements 6,129      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 470      
Carrying Amount of Buildings and Improvements 6,129      
Accumulated Depreciation 2,535      
Triple-net | Gastonia, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 310      
Initial Cost of Buildings & Improvements 3,096      
Cost Capitalized Subsequent to Acquisition 22      
Carrying Amount of Land 310      
Carrying Amount of Buildings and Improvements 3,118      
Accumulated Depreciation 1,355      
Triple-net | Gastonia, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 400      
Initial Cost of Buildings & Improvements 5,029      
Cost Capitalized Subsequent to Acquisition 120      
Carrying Amount of Land 400      
Carrying Amount of Buildings and Improvements 5,149      
Accumulated Depreciation 2,143      
Triple-net | Geneva, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,502      
Initial Cost of Buildings & Improvements 16,198      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,502      
Carrying Amount of Buildings and Improvements 16,198      
Accumulated Depreciation 191      
Triple-net | Georgetown, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Buildings & Improvements 2,100      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 200      
Carrying Amount of Buildings and Improvements 2,100      
Accumulated Depreciation 1,177      
Triple-net | Gig Harbor, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,560      
Initial Cost of Buildings & Improvements 15,947      
Cost Capitalized Subsequent to Acquisition 275      
Carrying Amount of Land 1,583      
Carrying Amount of Buildings and Improvements 16,199      
Accumulated Depreciation 4,269      
Triple-net | Gig Harbor, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,000      
Initial Cost of Buildings & Improvements 4,463      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,000      
Carrying Amount of Buildings and Improvements 4,463      
Accumulated Depreciation 64      
Triple-net | Glen Ellyn, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,496      
Initial Cost of Buildings & Improvements 6,636      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,496      
Carrying Amount of Buildings and Improvements 6,636      
Accumulated Depreciation 87      
Triple-net | Granbury, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,550      
Initial Cost of Buildings & Improvements 2,940      
Cost Capitalized Subsequent to Acquisition 777      
Carrying Amount of Land 2,550      
Carrying Amount of Buildings and Improvements 3,717      
Accumulated Depreciation 737      
Triple-net | Grand Ledge, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,150      
Initial Cost of Buildings & Improvements 16,286      
Cost Capitalized Subsequent to Acquisition 5,119      
Carrying Amount of Land 1,150      
Carrying Amount of Buildings and Improvements 21,405      
Accumulated Depreciation 4,313      
Triple-net | Granger, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,670      
Initial Cost of Buildings & Improvements 21,280      
Cost Capitalized Subsequent to Acquisition 2,401      
Carrying Amount of Land 1,670      
Carrying Amount of Buildings and Improvements 23,681      
Accumulated Depreciation 5,011      
Triple-net | Grapevine, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,220      
Initial Cost of Buildings & Improvements 17,648      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,220      
Carrying Amount of Buildings and Improvements 17,648      
Accumulated Depreciation 1,554      
Triple-net | Great Falls, MT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 630      
Initial Cost of Buildings & Improvements 6,007      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 630      
Carrying Amount of Buildings and Improvements 6,007      
Accumulated Depreciation 357      
Triple-net | Greeley, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,077      
Initial Cost of Buildings & Improvements 18,051      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,077      
Carrying Amount of Buildings and Improvements 18,051      
Accumulated Depreciation 806      
Triple-net | Greenfield, WI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 15,204      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 890      
Carrying Amount of Buildings and Improvements 14,314      
Accumulated Depreciation 2,085      
Triple-net | Greensboro, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 330      
Initial Cost of Buildings & Improvements 2,970      
Cost Capitalized Subsequent to Acquisition 554      
Carrying Amount of Land 330      
Carrying Amount of Buildings and Improvements 3,524      
Accumulated Depreciation 1,506      
Triple-net | Greensboro, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 560      
Initial Cost of Buildings & Improvements 5,507      
Cost Capitalized Subsequent to Acquisition 1,013      
Carrying Amount of Land 560      
Carrying Amount of Buildings and Improvements 6,520      
Accumulated Depreciation 2,770      
Triple-net | Greenville, SC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,751      
Initial Cost of Buildings & Improvements 8,774      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,751      
Carrying Amount of Buildings and Improvements 8,774      
Accumulated Depreciation 106      
Triple-net | Greenville, SC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 947      
Initial Cost of Buildings & Improvements 1,445      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 947      
Carrying Amount of Buildings and Improvements 1,445      
Accumulated Depreciation 29      
Triple-net | Greenville, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Buildings & Improvements 4,393      
Cost Capitalized Subsequent to Acquisition 168      
Carrying Amount of Land 290      
Carrying Amount of Buildings and Improvements 4,561      
Accumulated Depreciation 1,882      
Triple-net | Greenwood, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,550      
Initial Cost of Buildings & Improvements 22,770      
Cost Capitalized Subsequent to Acquisition 81      
Carrying Amount of Land 1,550      
Carrying Amount of Buildings and Improvements 22,851      
Accumulated Depreciation 4,932      
Triple-net | Grosse Pointe, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 867      
Initial Cost of Buildings & Improvements 2,386      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 867      
Carrying Amount of Buildings and Improvements 2,386      
Accumulated Depreciation 30      
Triple-net | Groton, CT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,430      
Initial Cost of Buildings & Improvements 19,941      
Cost Capitalized Subsequent to Acquisition 968      
Carrying Amount of Land 2,430      
Carrying Amount of Buildings and Improvements 20,909      
Accumulated Depreciation 4,784      
Triple-net | Hamilton, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 440      
Initial Cost of Buildings & Improvements 4,469      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 440      
Carrying Amount of Buildings and Improvements 4,469      
Accumulated Depreciation 1,990      
Triple-net | Hanahan, SC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,944      
Initial Cost of Buildings & Improvements 3,988      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,944      
Carrying Amount of Buildings and Improvements 3,988      
Accumulated Depreciation 57      
Triple-net | Hanford, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,382      
Initial Cost of Buildings & Improvements 9,829      
Cost Capitalized Subsequent to Acquisition 378      
Carrying Amount of Land 1,428      
Carrying Amount of Buildings and Improvements 10,161      
Accumulated Depreciation 1,453      
Triple-net | Harrisburg, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 569      
Initial Cost of Buildings & Improvements 12,826      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 569      
Carrying Amount of Buildings and Improvements 12,826      
Accumulated Depreciation 150      
Triple-net | Harrow, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 7,402      
Initial Cost of Buildings & Improvements 8,266      
Cost Capitalized Subsequent to Acquisition 529      
Carrying Amount of Land 7,652      
Carrying Amount of Buildings and Improvements 8,545      
Accumulated Depreciation 964      
Triple-net | Hatboro, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 28,112      
Cost Capitalized Subsequent to Acquisition 1,771      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 29,883      
Accumulated Depreciation 6,096      
Triple-net | Hatboro, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,192      
Initial Cost of Buildings & Improvements 7,611      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,192      
Carrying Amount of Buildings and Improvements 7,611      
Accumulated Depreciation 122      
Triple-net | Hatfield, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,924      
Initial Cost of Buildings & Improvements 7,527      
Cost Capitalized Subsequent to Acquisition 353      
Carrying Amount of Land 3,023      
Carrying Amount of Buildings and Improvements 7,781      
Accumulated Depreciation 1,121      
Triple-net | Hattiesburg, MS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 450      
Initial Cost of Buildings & Improvements 13,469      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 450      
Carrying Amount of Buildings and Improvements 13,469      
Accumulated Depreciation 2,732      
Triple-net | Hemet, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,224      
Initial Cost of Buildings & Improvements 8,414      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 6,224      
Carrying Amount of Buildings and Improvements 8,414      
Accumulated Depreciation 102      
Triple-net | Henry, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,860      
Initial Cost of Buildings & Improvements 3,689      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,860      
Carrying Amount of Buildings and Improvements 3,689      
Accumulated Depreciation 43      
Triple-net | Hermitage, TN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,500      
Initial Cost of Buildings & Improvements 9,943      
Cost Capitalized Subsequent to Acquisition 188      
Carrying Amount of Land 1,500      
Carrying Amount of Buildings and Improvements 10,131      
Accumulated Depreciation 1,953      
Triple-net | Herne Bay, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,900      
Initial Cost of Buildings & Improvements 24,353      
Cost Capitalized Subsequent to Acquisition 1,602      
Carrying Amount of Land 1,964      
Carrying Amount of Buildings and Improvements 25,891      
Accumulated Depreciation 3,934      
Triple-net | Hiawatha, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 40      
Initial Cost of Buildings & Improvements 4,210      
Cost Capitalized Subsequent to Acquisition 29      
Carrying Amount of Land 40      
Carrying Amount of Buildings and Improvements 4,239      
Accumulated Depreciation 371      
Triple-net | Hickory, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Buildings & Improvements 987      
Cost Capitalized Subsequent to Acquisition 232      
Carrying Amount of Land 290      
Carrying Amount of Buildings and Improvements 1,219      
Accumulated Depreciation 650      
Triple-net | High Point, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 560      
Initial Cost of Buildings & Improvements 4,443      
Cost Capitalized Subsequent to Acquisition 793      
Carrying Amount of Land 560      
Carrying Amount of Buildings and Improvements 5,236      
Accumulated Depreciation 2,205      
Triple-net | High Point, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 370      
Initial Cost of Buildings & Improvements 2,185      
Cost Capitalized Subsequent to Acquisition 410      
Carrying Amount of Land 370      
Carrying Amount of Buildings and Improvements 2,595      
Accumulated Depreciation 1,149      
Triple-net | High Point, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 330      
Initial Cost of Buildings & Improvements 3,395      
Cost Capitalized Subsequent to Acquisition 28      
Carrying Amount of Land 330      
Carrying Amount of Buildings and Improvements 3,423      
Accumulated Depreciation 1,450      
Triple-net | High Point, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 430      
Initial Cost of Buildings & Improvements 4,143      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 430      
Carrying Amount of Buildings and Improvements 4,143      
Accumulated Depreciation 1,743      
Triple-net | Highland Park, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,820      
Initial Cost of Buildings & Improvements 15,832      
Cost Capitalized Subsequent to Acquisition 189      
Carrying Amount of Land 2,820      
Carrying Amount of Buildings and Improvements 16,021      
Accumulated Depreciation 2,557      
Triple-net | Highlands Ranch, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 940      
Initial Cost of Buildings & Improvements 3,721      
Cost Capitalized Subsequent to Acquisition 4,983      
Carrying Amount of Land 940      
Carrying Amount of Buildings and Improvements 8,704      
Accumulated Depreciation 2,303      
Triple-net | Hillsboro, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,792      
Initial Cost of Buildings & Improvements 6,341      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,792      
Carrying Amount of Buildings and Improvements 6,341      
Accumulated Depreciation 105      
Triple-net | Hinckley, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,159      
Initial Cost of Buildings & Improvements 4,194      
Cost Capitalized Subsequent to Acquisition 215      
Carrying Amount of Land 2,232      
Carrying Amount of Buildings and Improvements 4,336      
Accumulated Depreciation 684      
Triple-net | Hindhead, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 44,662      
Initial Cost of Land 17,852      
Initial Cost of Buildings & Improvements 48,645      
Cost Capitalized Subsequent to Acquisition 2,466      
Carrying Amount of Land 18,455      
Carrying Amount of Buildings and Improvements 50,508      
Accumulated Depreciation 2,649      
Triple-net | Hinsdale, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,033      
Initial Cost of Buildings & Improvements 24,287      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,033      
Carrying Amount of Buildings and Improvements 24,287      
Accumulated Depreciation 270      
Triple-net | Hockessin, DE        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,120      
Initial Cost of Buildings & Improvements 6,308      
Cost Capitalized Subsequent to Acquisition 1,247      
Carrying Amount of Land 1,120      
Carrying Amount of Buildings and Improvements 7,555      
Accumulated Depreciation 941      
Triple-net | Holton, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 40      
Initial Cost of Buildings & Improvements 7,460      
Cost Capitalized Subsequent to Acquisition 13      
Carrying Amount of Land 40      
Carrying Amount of Buildings and Improvements 7,473      
Accumulated Depreciation 611      
Triple-net | Homewood, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,395      
Initial Cost of Buildings & Improvements 7,652      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,395      
Carrying Amount of Buildings and Improvements 7,652      
Accumulated Depreciation 87      
Triple-net | Houston, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,040      
Initial Cost of Buildings & Improvements 31,965      
Cost Capitalized Subsequent to Acquisition 4,969      
Carrying Amount of Land 1,040      
Carrying Amount of Buildings and Improvements 36,934      
Accumulated Depreciation 7,493      
Triple-net | Howard, WI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 579      
Initial Cost of Buildings & Improvements 32,122      
Cost Capitalized Subsequent to Acquisition 10      
Carrying Amount of Land 579      
Carrying Amount of Buildings and Improvements 32,132      
Accumulated Depreciation 1,099      
Triple-net | Huntingdon Valley, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,150      
Initial Cost of Buildings & Improvements 3,730      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,150      
Carrying Amount of Buildings and Improvements 3,730      
Accumulated Depreciation 63      
Triple-net | Hyattsville, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,017      
Initial Cost of Buildings & Improvements 2,298      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,017      
Carrying Amount of Buildings and Improvements 2,298      
Accumulated Depreciation 33      
Triple-net | Independence, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,082      
Initial Cost of Buildings & Improvements 6,767      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,082      
Carrying Amount of Buildings and Improvements 6,767      
Accumulated Depreciation 438      
Triple-net | Indianapolis, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 870      
Initial Cost of Buildings & Improvements 14,688      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 870      
Carrying Amount of Buildings and Improvements 14,688      
Accumulated Depreciation 1,837      
Triple-net | Indianapolis, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,105      
Initial Cost of Buildings & Improvements 6,645      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,105      
Carrying Amount of Buildings and Improvements 6,645      
Accumulated Depreciation 76      
Triple-net | Jackson, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,500      
Initial Cost of Buildings & Improvements 26,405      
Cost Capitalized Subsequent to Acquisition 3,107      
Carrying Amount of Land 6,500      
Carrying Amount of Buildings and Improvements 29,512      
Accumulated Depreciation 4,577      
Triple-net | Jacksonville, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 750      
Initial Cost of Buildings & Improvements 25,231      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 750      
Carrying Amount of Buildings and Improvements 25,231      
Accumulated Depreciation 1,645      
Triple-net | Jacksonville, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 26,381      
Cost Capitalized Subsequent to Acquisition 1,691      
Carrying Amount of Land 1,691      
Carrying Amount of Buildings and Improvements 26,381      
Accumulated Depreciation 1,716      
Triple-net | Jacksonville, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,752      
Initial Cost of Buildings & Improvements 2,553      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,752      
Carrying Amount of Buildings and Improvements 2,553      
Accumulated Depreciation 31      
Triple-net | Jacksonville, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,182      
Initial Cost of Buildings & Improvements 9,491      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,182      
Carrying Amount of Buildings and Improvements 9,491      
Accumulated Depreciation 123      
Triple-net | Jefferson Hills, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,265      
Initial Cost of Buildings & Improvements 13,618      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,265      
Carrying Amount of Buildings and Improvements 13,618      
Accumulated Depreciation 233      
Triple-net | Jersey Shore, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 600      
Initial Cost of Buildings & Improvements 8,107      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 600      
Carrying Amount of Buildings and Improvements 8,107      
Accumulated Depreciation 89      
Triple-net | Kansas City, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 700      
Initial Cost of Buildings & Improvements 20,115      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 700      
Carrying Amount of Buildings and Improvements 20,115      
Accumulated Depreciation 1,646      
Triple-net | Katy, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,778      
Initial Cost of Buildings & Improvements 22,622      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,778      
Carrying Amount of Buildings and Improvements 22,622      
Accumulated Depreciation 1,047      
Triple-net | Kenner, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,100      
Initial Cost of Buildings & Improvements 10,036      
Cost Capitalized Subsequent to Acquisition 349      
Carrying Amount of Land 1,100      
Carrying Amount of Buildings and Improvements 10,385      
Accumulated Depreciation 9,529      
Triple-net | Kensington, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,753      
Initial Cost of Buildings & Improvements 18,626      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,753      
Carrying Amount of Buildings and Improvements 18,626      
Accumulated Depreciation 211      
Triple-net | Kenwood, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 821      
Initial Cost of Buildings & Improvements 11,043      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 821      
Carrying Amount of Buildings and Improvements 11,043      
Accumulated Depreciation 129      
Triple-net | Kettering, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,229      
Initial Cost of Buildings & Improvements 4,703      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,229      
Carrying Amount of Buildings and Improvements 4,703      
Accumulated Depreciation 63      
Triple-net | King of Prussia, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 720      
Initial Cost of Buildings & Improvements 14,780      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 720      
Carrying Amount of Buildings and Improvements 14,780      
Accumulated Depreciation 180      
Triple-net | King of Prussia, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,205      
Initial Cost of Buildings & Improvements 4,727      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,205      
Carrying Amount of Buildings and Improvements 4,727      
Accumulated Depreciation 68      
Triple-net | Kingsford, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,362      
Initial Cost of Buildings & Improvements 10,598      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,362      
Carrying Amount of Buildings and Improvements 10,598      
Accumulated Depreciation 129      
Triple-net | Kingston, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 986      
Initial Cost of Buildings & Improvements 5,711      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 986      
Carrying Amount of Buildings and Improvements 5,711      
Accumulated Depreciation 68      
Triple-net | Kingston upon Thames, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 53,595      
Initial Cost of Land 33,063      
Initial Cost of Buildings & Improvements 46,696      
Cost Capitalized Subsequent to Acquisition 2,926      
Carrying Amount of Land 34,181      
Carrying Amount of Buildings and Improvements 48,504      
Accumulated Depreciation 2,573      
Triple-net | Kirkland, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,880      
Initial Cost of Buildings & Improvements 4,315      
Cost Capitalized Subsequent to Acquisition 683      
Carrying Amount of Land 1,880      
Carrying Amount of Buildings and Improvements 4,998      
Accumulated Depreciation 1,911      
Triple-net | Kirkstall, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,437      
Initial Cost of Buildings & Improvements 9,414      
Cost Capitalized Subsequent to Acquisition 401      
Carrying Amount of Land 2,519      
Carrying Amount of Buildings and Improvements 9,733      
Accumulated Depreciation 1,396      
Triple-net | Kokomo, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 710      
Initial Cost of Buildings & Improvements 16,044      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 710      
Carrying Amount of Buildings and Improvements 16,044      
Accumulated Depreciation 2,001      
Triple-net | Lacey, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,582      
Initial Cost of Buildings & Improvements 18,180      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,582      
Carrying Amount of Buildings and Improvements 18,180      
Accumulated Depreciation 209      
Triple-net | Lafayette, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,928      
Initial Cost of Buildings & Improvements 10,483      
Cost Capitalized Subsequent to Acquisition 26      
Carrying Amount of Land 1,928      
Carrying Amount of Buildings and Improvements 10,509      
Accumulated Depreciation 4,581      
Triple-net | Lafayette, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,420      
Initial Cost of Buildings & Improvements 20,192      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,420      
Carrying Amount of Buildings and Improvements 20,192      
Accumulated Depreciation 2,001      
Triple-net | Lafayette, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 670      
Initial Cost of Buildings & Improvements 16,833      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 670      
Carrying Amount of Buildings and Improvements 16,834      
Accumulated Depreciation 1,870      
Triple-net | Lakeway, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 5,142      
Initial Cost of Buildings & Improvements 23,203      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 5,142      
Carrying Amount of Buildings and Improvements 23,203      
Accumulated Depreciation 3,272      
Triple-net | Lakewood, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,160      
Initial Cost of Buildings & Improvements 28,091      
Cost Capitalized Subsequent to Acquisition 62      
Carrying Amount of Land 2,160      
Carrying Amount of Buildings and Improvements 28,153      
Accumulated Depreciation 3,561      
Triple-net | Lakewood Ranch, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 650      
Initial Cost of Buildings & Improvements 6,714      
Cost Capitalized Subsequent to Acquisition 1,988      
Carrying Amount of Land 650      
Carrying Amount of Buildings and Improvements 8,702      
Accumulated Depreciation 1,484      
Triple-net | Lakewood Ranch, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,000      
Initial Cost of Buildings & Improvements 22,388      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,000      
Carrying Amount of Buildings and Improvements 22,388      
Accumulated Depreciation 3,822      
Triple-net | Lancaster, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,680      
Initial Cost of Buildings & Improvements 14,039      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,680      
Carrying Amount of Buildings and Improvements 14,039      
Accumulated Depreciation 761      
Triple-net | Lancaster, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,011      
Initial Cost of Buildings & Improvements 7,504      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,011      
Carrying Amount of Buildings and Improvements 7,504      
Accumulated Depreciation 89      
Triple-net | LaPlata, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 700      
Initial Cost of Buildings & Improvements 19,068      
Cost Capitalized Subsequent to Acquisition 466      
Carrying Amount of Land 700      
Carrying Amount of Buildings and Improvements 19,534      
Accumulated Depreciation 4,198      
Triple-net | Largo, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,361      
Initial Cost of Buildings & Improvements 3,623      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,361      
Carrying Amount of Buildings and Improvements 3,623      
Accumulated Depreciation 50      
Triple-net | Largo, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,166      
Initial Cost of Buildings & Improvements 3,427      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,166      
Carrying Amount of Buildings and Improvements 3,427      
Accumulated Depreciation 53      
Triple-net | Las Vegas, NV        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 580      
Initial Cost of Buildings & Improvements 23,420      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 580      
Carrying Amount of Buildings and Improvements 23,420      
Accumulated Depreciation 4,594      
Triple-net | Laureldale, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,171      
Initial Cost of Buildings & Improvements 14,424      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,171      
Carrying Amount of Buildings and Improvements 14,424      
Accumulated Depreciation 166      
Triple-net | Lawrence, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 250      
Initial Cost of Buildings & Improvements 8,716      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 250      
Carrying Amount of Buildings and Improvements 8,716      
Accumulated Depreciation 1,471      
Triple-net | Leawood, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,490      
Initial Cost of Buildings & Improvements 32,493      
Cost Capitalized Subsequent to Acquisition 2,209      
Carrying Amount of Land 5,610      
Carrying Amount of Buildings and Improvements 31,582      
Accumulated Depreciation 7,303      
Triple-net | Lebanon, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 728      
Initial Cost of Buildings & Improvements 10,370      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 728      
Carrying Amount of Buildings and Improvements 10,370      
Accumulated Depreciation 130      
Triple-net | Lebanon, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,214      
Initial Cost of Buildings & Improvements 5,962      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,214      
Carrying Amount of Buildings and Improvements 5,962      
Accumulated Depreciation 84      
Triple-net | Lee, MA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Buildings & Improvements 18,135      
Cost Capitalized Subsequent to Acquisition 926      
Carrying Amount of Land 290      
Carrying Amount of Buildings and Improvements 19,061      
Accumulated Depreciation 8,404      
Triple-net | Leeds, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,974      
Initial Cost of Buildings & Improvements 13,239      
Cost Capitalized Subsequent to Acquisition 515      
Carrying Amount of Land 2,041      
Carrying Amount of Buildings and Improvements 13,687      
Accumulated Depreciation 1,305      
Triple-net | Leicester, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,060      
Initial Cost of Buildings & Improvements 24,410      
Cost Capitalized Subsequent to Acquisition 928      
Carrying Amount of Land 3,163      
Carrying Amount of Buildings and Improvements 25,235      
Accumulated Depreciation 3,953      
Triple-net | Lenoir, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 190      
Initial Cost of Buildings & Improvements 3,748      
Cost Capitalized Subsequent to Acquisition 641      
Carrying Amount of Land 190      
Carrying Amount of Buildings and Improvements 4,389      
Accumulated Depreciation 1,842      
Triple-net | Lethbridge, AB        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 1,312      
Initial Cost of Land 1,214      
Initial Cost of Buildings & Improvements 2,750      
Cost Capitalized Subsequent to Acquisition 61      
Carrying Amount of Land 1,232      
Carrying Amount of Buildings and Improvements 2,793      
Accumulated Depreciation 422      
Triple-net | Lexana, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 480      
Initial Cost of Buildings & Improvements 1,770      
Cost Capitalized Subsequent to Acquisition 152      
Carrying Amount of Land 480      
Carrying Amount of Buildings and Improvements 1,922      
Accumulated Depreciation 184      
Triple-net | Lexington, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Buildings & Improvements 3,900      
Cost Capitalized Subsequent to Acquisition 1,015      
Carrying Amount of Land 200      
Carrying Amount of Buildings and Improvements 4,915      
Accumulated Depreciation 2,127      
Triple-net | Libertyville, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,500      
Initial Cost of Buildings & Improvements 40,024      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 6,500      
Carrying Amount of Buildings and Improvements 40,024      
Accumulated Depreciation 8,481      
Triple-net | Libertyville, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,993      
Initial Cost of Buildings & Improvements 11,550      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,993      
Carrying Amount of Buildings and Improvements 11,550      
Accumulated Depreciation 130      
Triple-net | Lichfield, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,382      
Initial Cost of Buildings & Improvements 30,324      
Cost Capitalized Subsequent to Acquisition 1,071      
Carrying Amount of Land 1,428      
Carrying Amount of Buildings and Improvements 31,349      
Accumulated Depreciation 3,020      
Triple-net | Lillington, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 470      
Initial Cost of Buildings & Improvements 17,579      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 470      
Carrying Amount of Buildings and Improvements 17,579      
Accumulated Depreciation 2,112      
Triple-net | Lillington, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 500      
Initial Cost of Buildings & Improvements 16,451      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 500      
Carrying Amount of Buildings and Improvements 16,451      
Accumulated Depreciation 1,855      
Triple-net | Lincoln, NE        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 390      
Initial Cost of Buildings & Improvements 13,807      
Cost Capitalized Subsequent to Acquisition 95      
Carrying Amount of Land 390      
Carrying Amount of Buildings and Improvements 13,902      
Accumulated Depreciation 3,154      
Triple-net | Lititz, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,200      
Initial Cost of Buildings & Improvements 13,836      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,200      
Carrying Amount of Buildings and Improvements 13,836      
Accumulated Depreciation 752      
Triple-net | Livermore, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,100      
Initial Cost of Buildings & Improvements 24,996      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,100      
Carrying Amount of Buildings and Improvements 24,996      
Accumulated Depreciation 2,642      
Triple-net | Livonia, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 985      
Initial Cost of Buildings & Improvements 13,558      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 985      
Carrying Amount of Buildings and Improvements 13,558      
Accumulated Depreciation 164      
Triple-net | Livonia, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,836      
Initial Cost of Buildings & Improvements 2,278      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,836      
Carrying Amount of Buildings and Improvements 2,278      
Accumulated Depreciation 33      
Triple-net | Longview, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 610      
Initial Cost of Buildings & Improvements 5,520      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 610      
Carrying Amount of Buildings and Improvements 5,520      
Accumulated Depreciation 1,725      
Triple-net | Longwood, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,260      
Initial Cost of Buildings & Improvements 6,445      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,260      
Carrying Amount of Buildings and Improvements 6,445      
Accumulated Depreciation 1,362      
Triple-net | Louisburg, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 280      
Initial Cost of Buildings & Improvements 4,320      
Cost Capitalized Subsequent to Acquisition 44      
Carrying Amount of Land 280      
Carrying Amount of Buildings and Improvements 4,364      
Accumulated Depreciation 360      
Triple-net | Louisville, KY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 490      
Initial Cost of Buildings & Improvements 10,010      
Cost Capitalized Subsequent to Acquisition 2,768      
Carrying Amount of Land 490      
Carrying Amount of Buildings and Improvements 12,778      
Accumulated Depreciation 4,869      
Triple-net | Loxley, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,369      
Initial Cost of Buildings & Improvements 15,668      
Cost Capitalized Subsequent to Acquisition 577      
Carrying Amount of Land 1,416      
Carrying Amount of Buildings and Improvements 16,198      
Accumulated Depreciation 2,474      
Triple-net | Lutherville, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,100      
Initial Cost of Buildings & Improvements 19,786      
Cost Capitalized Subsequent to Acquisition 1,744      
Carrying Amount of Land 1,100      
Carrying Amount of Buildings and Improvements 21,530      
Accumulated Depreciation 4,472      
Triple-net | Lynchburg, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 340      
Initial Cost of Buildings & Improvements 16,114      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 340      
Carrying Amount of Buildings and Improvements 16,114      
Accumulated Depreciation 1,964      
Triple-net | Lynchburg, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,904      
Initial Cost of Buildings & Improvements 3,697      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,904      
Carrying Amount of Buildings and Improvements 3,697      
Accumulated Depreciation 43      
Triple-net | Lynnwood, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,308      
Initial Cost of Buildings & Improvements 5,634      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,308      
Carrying Amount of Buildings and Improvements 5,634      
Accumulated Depreciation 67      
Triple-net | Macomb, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,586      
Initial Cost of Buildings & Improvements 4,059      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,586      
Carrying Amount of Buildings and Improvements 4,059      
Accumulated Depreciation 46      
Triple-net | Macungie, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 960      
Initial Cost of Buildings & Improvements 29,033      
Cost Capitalized Subsequent to Acquisition 84      
Carrying Amount of Land 960      
Carrying Amount of Buildings and Improvements 29,117      
Accumulated Depreciation 6,047      
Triple-net | Manalapan, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 900      
Initial Cost of Buildings & Improvements 22,624      
Cost Capitalized Subsequent to Acquisition 622      
Carrying Amount of Land 900      
Carrying Amount of Buildings and Improvements 23,246      
Accumulated Depreciation 4,447      
Triple-net | Manassas, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 750      
Initial Cost of Buildings & Improvements 7,446      
Cost Capitalized Subsequent to Acquisition 530      
Carrying Amount of Land 750      
Carrying Amount of Buildings and Improvements 7,976      
Accumulated Depreciation 3,092      
Triple-net | Mankato, MN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,460      
Initial Cost of Buildings & Improvements 32,104      
Cost Capitalized Subsequent to Acquisition 300      
Carrying Amount of Land 1,460      
Carrying Amount of Buildings and Improvements 32,404      
Accumulated Depreciation 2,620      
Triple-net | Mansfield, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 660      
Initial Cost of Buildings & Improvements 5,251      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 660      
Carrying Amount of Buildings and Improvements 5,251      
Accumulated Depreciation 1,659      
Triple-net | Marietta, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,149      
Initial Cost of Buildings & Improvements 9,376      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,149      
Carrying Amount of Buildings and Improvements 9,376      
Accumulated Depreciation 109      
Triple-net | Marietta, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,406      
Initial Cost of Buildings & Improvements 12,233      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,406      
Carrying Amount of Buildings and Improvements 12,233      
Accumulated Depreciation 140      
Triple-net | Marietta, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,050      
Initial Cost of Buildings & Improvements 13,633      
Cost Capitalized Subsequent to Acquisition 270      
Carrying Amount of Land 1,050      
Carrying Amount of Buildings and Improvements 13,903      
Accumulated Depreciation 1,226      
Triple-net | Marion, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 720      
Initial Cost of Buildings & Improvements 12,750      
Cost Capitalized Subsequent to Acquisition 1,136      
Carrying Amount of Land 720      
Carrying Amount of Buildings and Improvements 13,886      
Accumulated Depreciation 1,675      
Triple-net | Marion, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 990      
Initial Cost of Buildings & Improvements 9,190      
Cost Capitalized Subsequent to Acquisition 824      
Carrying Amount of Land 990      
Carrying Amount of Buildings and Improvements 10,014      
Accumulated Depreciation 1,432      
Triple-net | Marion, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,768      
Initial Cost of Buildings & Improvements 17,420      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,768      
Carrying Amount of Buildings and Improvements 17,420      
Accumulated Depreciation 259      
Triple-net | Marlborough, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,677      
Initial Cost of Buildings & Improvements 6,822      
Cost Capitalized Subsequent to Acquisition 322      
Carrying Amount of Land 2,768      
Carrying Amount of Buildings and Improvements 7,053      
Accumulated Depreciation 777      
Triple-net | Marlow, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 9,068      
Initial Cost of Buildings & Improvements 39,720      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 9,068      
Carrying Amount of Buildings and Improvements 39,720      
Accumulated Depreciation 2,869      
Triple-net | Martinsville, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 349      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 349      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation 0      
Triple-net | Marysville, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 620      
Initial Cost of Buildings & Improvements 4,780      
Cost Capitalized Subsequent to Acquisition 969      
Carrying Amount of Land 620      
Carrying Amount of Buildings and Improvements 5,749      
Accumulated Depreciation 2,233      
Triple-net | Matawan, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,830      
Initial Cost of Buildings & Improvements 20,618      
Cost Capitalized Subsequent to Acquisition 166      
Carrying Amount of Land 1,830      
Carrying Amount of Buildings and Improvements 20,784      
Accumulated Depreciation 4,158      
Triple-net | Matthews, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 560      
Initial Cost of Buildings & Improvements 4,738      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 560      
Carrying Amount of Buildings and Improvements 4,738      
Accumulated Depreciation 2,031      
Triple-net | McHenry, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,576      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,576      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation 0      
Triple-net | McKinney, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,570      
Initial Cost of Buildings & Improvements 7,389      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,570      
Carrying Amount of Buildings and Improvements 7,389      
Accumulated Depreciation 1,881      
Triple-net | McMurray, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,440      
Initial Cost of Buildings & Improvements 15,805      
Cost Capitalized Subsequent to Acquisition 3,894      
Carrying Amount of Land 1,440      
Carrying Amount of Buildings and Improvements 19,699      
Accumulated Depreciation 3,641      
Triple-net | Mechanicsburg, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,350      
Initial Cost of Buildings & Improvements 16,650      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,350      
Carrying Amount of Buildings and Improvements 16,650      
Accumulated Depreciation 3,344      
Triple-net | Medicine Hat, AB        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 2,156      
Initial Cost of Land 932      
Initial Cost of Buildings & Improvements 5,566      
Cost Capitalized Subsequent to Acquisition 98      
Carrying Amount of Land 946      
Carrying Amount of Buildings and Improvements 5,650      
Accumulated Depreciation 679      
Triple-net | Menomonee Falls, WI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,020      
Initial Cost of Buildings & Improvements 6,984      
Cost Capitalized Subsequent to Acquisition 1,652      
Carrying Amount of Land 1,020      
Carrying Amount of Buildings and Improvements 8,636      
Accumulated Depreciation 2,285      
Triple-net | Mentor, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,827      
Initial Cost of Buildings & Improvements 9,941      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,827      
Carrying Amount of Buildings and Improvements 9,941      
Accumulated Depreciation 117      
Triple-net | Mercerville, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 860      
Initial Cost of Buildings & Improvements 9,929      
Cost Capitalized Subsequent to Acquisition 173      
Carrying Amount of Land 860      
Carrying Amount of Buildings and Improvements 10,102      
Accumulated Depreciation 2,315      
Triple-net | Meriden, CT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,300      
Initial Cost of Buildings & Improvements 1,472      
Cost Capitalized Subsequent to Acquisition 233      
Carrying Amount of Land 1,300      
Carrying Amount of Buildings and Improvements 1,705      
Accumulated Depreciation 736      
Triple-net | Merrillville, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 700      
Initial Cost of Buildings & Improvements 11,699      
Cost Capitalized Subsequent to Acquisition 154      
Carrying Amount of Land 700      
Carrying Amount of Buildings and Improvements 11,853      
Accumulated Depreciation 3,430      
Triple-net | Mesa, AZ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 950      
Initial Cost of Buildings & Improvements 9,087      
Cost Capitalized Subsequent to Acquisition 1,971      
Carrying Amount of Land 950      
Carrying Amount of Buildings and Improvements 11,058      
Accumulated Depreciation 5,022      
Triple-net | Miamisburg, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 786      
Initial Cost of Buildings & Improvements 3,233      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 786      
Carrying Amount of Buildings and Improvements 3,233      
Accumulated Depreciation 54      
Triple-net | Middleburg Heights, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 960      
Initial Cost of Buildings & Improvements 7,780      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 960      
Carrying Amount of Buildings and Improvements 7,780      
Accumulated Depreciation 2,946      
Triple-net | Middleton, WI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 420      
Initial Cost of Buildings & Improvements 4,006      
Cost Capitalized Subsequent to Acquisition 600      
Carrying Amount of Land 420      
Carrying Amount of Buildings and Improvements 4,606      
Accumulated Depreciation 1,915      
Triple-net | Midland, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Buildings & Improvements 11,025      
Cost Capitalized Subsequent to Acquisition 5,522      
Carrying Amount of Land 200      
Carrying Amount of Buildings and Improvements 16,547      
Accumulated Depreciation 2,992      
Triple-net | Milton Keynes, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,826      
Initial Cost of Buildings & Improvements 18,654      
Cost Capitalized Subsequent to Acquisition 692      
Carrying Amount of Land 1,888      
Carrying Amount of Buildings and Improvements 19,284      
Accumulated Depreciation 1,913      
Triple-net | Mishawaka, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 740      
Initial Cost of Buildings & Improvements 16,113      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 740      
Carrying Amount of Buildings and Improvements 16,113      
Accumulated Depreciation 2,067      
Triple-net | Moline, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,946      
Initial Cost of Buildings & Improvements 18,677      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,946      
Carrying Amount of Buildings and Improvements 18,677      
Accumulated Depreciation 206      
Triple-net | Monmouth Junction, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 720      
Initial Cost of Buildings & Improvements 6,209      
Cost Capitalized Subsequent to Acquisition 86      
Carrying Amount of Land 720      
Carrying Amount of Buildings and Improvements 6,295      
Accumulated Depreciation 1,522      
Triple-net | Monroe, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 470      
Initial Cost of Buildings & Improvements 3,681      
Cost Capitalized Subsequent to Acquisition 648      
Carrying Amount of Land 470      
Carrying Amount of Buildings and Improvements 4,329      
Accumulated Depreciation 1,850      
Triple-net | Monroe, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 310      
Initial Cost of Buildings & Improvements 4,799      
Cost Capitalized Subsequent to Acquisition 857      
Carrying Amount of Land 310      
Carrying Amount of Buildings and Improvements 5,656      
Accumulated Depreciation 2,316      
Triple-net | Monroe, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 450      
Initial Cost of Buildings & Improvements 4,021      
Cost Capitalized Subsequent to Acquisition 114      
Carrying Amount of Land 450      
Carrying Amount of Buildings and Improvements 4,135      
Accumulated Depreciation 1,764      
Triple-net | Monroe Township, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,250      
Initial Cost of Buildings & Improvements 27,771      
Cost Capitalized Subsequent to Acquisition 270      
Carrying Amount of Land 3,250      
Carrying Amount of Buildings and Improvements 28,041      
Accumulated Depreciation 2,200      
Triple-net | Monroeville, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,216      
Initial Cost of Buildings & Improvements 12,753      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,216      
Carrying Amount of Buildings and Improvements 12,753      
Accumulated Depreciation 179      
Triple-net | Monroeville, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,237      
Initial Cost of Buildings & Improvements 3,642      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,237      
Carrying Amount of Buildings and Improvements 3,642      
Accumulated Depreciation 68      
Triple-net | Montgomeryville, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,176      
Initial Cost of Buildings & Improvements 9,827      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,176      
Carrying Amount of Buildings and Improvements 9,827      
Accumulated Depreciation 122      
Triple-net | Montville, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,500      
Initial Cost of Buildings & Improvements 31,002      
Cost Capitalized Subsequent to Acquisition 1,171      
Carrying Amount of Land 3,500      
Carrying Amount of Buildings and Improvements 32,173      
Accumulated Depreciation 6,238      
Triple-net | Moorestown, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,400      
Initial Cost of Buildings & Improvements 23,875      
Cost Capitalized Subsequent to Acquisition 27      
Carrying Amount of Land 6,400      
Carrying Amount of Buildings and Improvements 23,902      
Accumulated Depreciation 3,239      
Triple-net | Morehead City, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Buildings & Improvements 3,104      
Cost Capitalized Subsequent to Acquisition 1,648      
Carrying Amount of Land 200      
Carrying Amount of Buildings and Improvements 4,752      
Accumulated Depreciation 2,260      
Triple-net | Morrison, CO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,720      
Initial Cost of Buildings & Improvements 16,261      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,720      
Carrying Amount of Buildings and Improvements 16,261      
Accumulated Depreciation 311      
Triple-net | Morton Grove, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,900      
Initial Cost of Buildings & Improvements 19,374      
Cost Capitalized Subsequent to Acquisition 159      
Carrying Amount of Land 1,900      
Carrying Amount of Buildings and Improvements 19,533      
Accumulated Depreciation 3,728      
Triple-net | Moulton, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,695      
Initial Cost of Buildings & Improvements 12,510      
Cost Capitalized Subsequent to Acquisition 997      
Carrying Amount of Land 1,597      
Carrying Amount of Buildings and Improvements 13,605      
Accumulated Depreciation 568      
Triple-net | Mount Pleasant, SC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 17,200      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 4,052      
Carrying Amount of Buildings and Improvements 13,149      
Accumulated Depreciation 3,228      
Triple-net | Mountainside, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,097      
Initial Cost of Buildings & Improvements 7,810      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,097      
Carrying Amount of Buildings and Improvements 7,810      
Accumulated Depreciation 93      
Triple-net | Nacogdoches, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 390      
Initial Cost of Buildings & Improvements 5,754      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 390      
Carrying Amount of Buildings and Improvements 5,754      
Accumulated Depreciation 1,792      
Triple-net | Naperville, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,470      
Initial Cost of Buildings & Improvements 29,547      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,470      
Carrying Amount of Buildings and Improvements 29,547      
Accumulated Depreciation 6,382      
Triple-net | Naples, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,222      
Initial Cost of Buildings & Improvements 10,642      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,222      
Carrying Amount of Buildings and Improvements 10,642      
Accumulated Depreciation 133      
Triple-net | Naples, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,672      
Initial Cost of Buildings & Improvements 26,170      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,672      
Carrying Amount of Buildings and Improvements 26,170      
Accumulated Depreciation 344      
Triple-net | Naples, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,854      
Initial Cost of Buildings & Improvements 12,402      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,854      
Carrying Amount of Buildings and Improvements 12,402      
Accumulated Depreciation 140      
Triple-net | Nashville, TN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,910      
Initial Cost of Buildings & Improvements 29,590      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,910      
Carrying Amount of Buildings and Improvements 29,590      
Accumulated Depreciation 8,321      
Triple-net | Naugatuck, CT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,200      
Initial Cost of Buildings & Improvements 15,826      
Cost Capitalized Subsequent to Acquisition 199      
Carrying Amount of Land 1,200      
Carrying Amount of Buildings and Improvements 16,025      
Accumulated Depreciation 3,479      
Triple-net | Needham, MA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,610      
Initial Cost of Buildings & Improvements 12,667      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,610      
Carrying Amount of Buildings and Improvements 12,667      
Accumulated Depreciation 5,327      
Triple-net | New Moston, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,480      
Initial Cost of Buildings & Improvements 4,378      
Cost Capitalized Subsequent to Acquisition 198      
Carrying Amount of Land 1,530      
Carrying Amount of Buildings and Improvements 4,526      
Accumulated Depreciation 676      
Triple-net | Newcastle Under Lyme, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,110      
Initial Cost of Buildings & Improvements 5,655      
Cost Capitalized Subsequent to Acquisition 229      
Carrying Amount of Land 1,148      
Carrying Amount of Buildings and Improvements 5,846      
Accumulated Depreciation 834      
Triple-net | Newcastle-under-Lyme, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,125      
Initial Cost of Buildings & Improvements 5,537      
Cost Capitalized Subsequent to Acquisition 225      
Carrying Amount of Land 1,163      
Carrying Amount of Buildings and Improvements 5,724      
Accumulated Depreciation 631      
Triple-net | Newport News, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 839      
Initial Cost of Buildings & Improvements 6,077      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 839      
Carrying Amount of Buildings and Improvements 6,077      
Accumulated Depreciation 407      
Triple-net | Norman, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 55      
Initial Cost of Buildings & Improvements 1,484      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 55      
Carrying Amount of Buildings and Improvements 1,484      
Accumulated Depreciation 938      
Triple-net | Norman, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,480      
Initial Cost of Buildings & Improvements 33,330      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,480      
Carrying Amount of Buildings and Improvements 33,330      
Accumulated Depreciation 5,571      
Triple-net | North Augusta, SC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 332      
Initial Cost of Buildings & Improvements 2,558      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 332      
Carrying Amount of Buildings and Improvements 2,558      
Accumulated Depreciation 1,348      
Triple-net | Northampton, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 5,182      
Initial Cost of Buildings & Improvements 17,348      
Cost Capitalized Subsequent to Acquisition 762      
Carrying Amount of Land 5,357      
Carrying Amount of Buildings and Improvements 17,935      
Accumulated Depreciation 2,659      
Triple-net | Northampton, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,013      
Initial Cost of Buildings & Improvements 6,257      
Cost Capitalized Subsequent to Acquisition 280      
Carrying Amount of Land 2,081      
Carrying Amount of Buildings and Improvements 6,469      
Accumulated Depreciation 674      
Triple-net | Northbrook, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,298      
Initial Cost of Buildings & Improvements 13,341      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,298      
Carrying Amount of Buildings and Improvements 13,341      
Accumulated Depreciation 154      
Triple-net | Nuneaton, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,325      
Initial Cost of Buildings & Improvements 8,983      
Cost Capitalized Subsequent to Acquisition 415      
Carrying Amount of Land 3,437      
Carrying Amount of Buildings and Improvements 9,286      
Accumulated Depreciation 1,326      
Triple-net | Nuthall, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,628      
Initial Cost of Buildings & Improvements 6,263      
Cost Capitalized Subsequent to Acquisition 268      
Carrying Amount of Land 1,684      
Carrying Amount of Buildings and Improvements 6,475      
Accumulated Depreciation 661      
Triple-net | Nuthall, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,498      
Initial Cost of Buildings & Improvements 10,436      
Cost Capitalized Subsequent to Acquisition 438      
Carrying Amount of Land 2,583      
Carrying Amount of Buildings and Improvements 10,789      
Accumulated Depreciation 1,556      
Triple-net | Oak Lawn, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,418      
Initial Cost of Buildings & Improvements 5,428      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,418      
Carrying Amount of Buildings and Improvements 5,428      
Accumulated Depreciation 62      
Triple-net | Oak Lawn, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,876      
Initial Cost of Buildings & Improvements 7,988      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,876      
Carrying Amount of Buildings and Improvements 7,988      
Accumulated Depreciation 95      
Triple-net | Oakland, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,760      
Initial Cost of Buildings & Improvements 16,143      
Cost Capitalized Subsequent to Acquisition 109      
Carrying Amount of Land 4,760      
Carrying Amount of Buildings and Improvements 16,252      
Accumulated Depreciation 1,936      
Triple-net | Ocala, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,340      
Initial Cost of Buildings & Improvements 10,564      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,340      
Carrying Amount of Buildings and Improvements 10,564      
Accumulated Depreciation 2,767      
Triple-net | Ogden, UT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 384      
Initial Cost of Buildings & Improvements 2,228      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 384      
Carrying Amount of Buildings and Improvements 2,228      
Accumulated Depreciation 310      
Triple-net | Oklahoma City, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 590      
Initial Cost of Buildings & Improvements 7,513      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 590      
Carrying Amount of Buildings and Improvements 7,513      
Accumulated Depreciation 2,175      
Triple-net | Oklahoma City, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 760      
Initial Cost of Buildings & Improvements 7,017      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 760      
Carrying Amount of Buildings and Improvements 7,017      
Accumulated Depreciation 1,993      
Triple-net | Olathe, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,930      
Initial Cost of Buildings & Improvements 19,765      
Cost Capitalized Subsequent to Acquisition 553      
Carrying Amount of Land 1,930      
Carrying Amount of Buildings and Improvements 20,318      
Accumulated Depreciation 1,758      
Triple-net | Omaha, NE        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 370      
Initial Cost of Buildings & Improvements 10,230      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 370      
Carrying Amount of Buildings and Improvements 10,230      
Accumulated Depreciation 2,369      
Triple-net | Omaha, NE        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 380      
Initial Cost of Buildings & Improvements 8,769      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 380      
Carrying Amount of Buildings and Improvements 8,769      
Accumulated Depreciation 2,144      
Triple-net | Ona, WV        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 950      
Initial Cost of Buildings & Improvements 15,998      
Cost Capitalized Subsequent to Acquisition 222      
Carrying Amount of Land 950      
Carrying Amount of Buildings and Improvements 16,220      
Accumulated Depreciation 1,400      
Triple-net | Oneonta, NY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 80      
Initial Cost of Buildings & Improvements 5,020      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 80      
Carrying Amount of Buildings and Improvements 5,020      
Accumulated Depreciation 1,442      
Triple-net | Orange Park, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,201      
Initial Cost of Buildings & Improvements 4,018      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,201      
Carrying Amount of Buildings and Improvements 4,018      
Accumulated Depreciation 64      
Triple-net | Orem, UT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,150      
Initial Cost of Buildings & Improvements 24,107      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,150      
Carrying Amount of Buildings and Improvements 24,107      
Accumulated Depreciation 2,021      
Triple-net | Osage City, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 50      
Initial Cost of Buildings & Improvements 1,700      
Cost Capitalized Subsequent to Acquisition 142      
Carrying Amount of Land 50      
Carrying Amount of Buildings and Improvements 1,842      
Accumulated Depreciation 183      
Triple-net | Osawatomie, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 130      
Initial Cost of Buildings & Improvements 2,970      
Cost Capitalized Subsequent to Acquisition 136      
Carrying Amount of Land 130      
Carrying Amount of Buildings and Improvements 3,106      
Accumulated Depreciation 283      
Triple-net | Ottawa, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 160      
Initial Cost of Buildings & Improvements 6,590      
Cost Capitalized Subsequent to Acquisition 44      
Carrying Amount of Land 160      
Carrying Amount of Buildings and Improvements 6,634      
Accumulated Depreciation 556      
Triple-net | Overland Park, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,500      
Initial Cost of Buildings & Improvements 29,105      
Cost Capitalized Subsequent to Acquisition 38,441      
Carrying Amount of Land 8,230      
Carrying Amount of Buildings and Improvements 63,816      
Accumulated Depreciation 15,377      
Triple-net | Overland Park, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,540      
Initial Cost of Buildings & Improvements 16,269      
Cost Capitalized Subsequent to Acquisition 943      
Carrying Amount of Land 1,670      
Carrying Amount of Buildings and Improvements 17,082      
Accumulated Depreciation 3,342      
Triple-net | Overland Park, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 410      
Initial Cost of Buildings & Improvements 2,840      
Cost Capitalized Subsequent to Acquisition 92      
Carrying Amount of Land 410      
Carrying Amount of Buildings and Improvements 2,932      
Accumulated Depreciation 279      
Triple-net | Overland Park, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,300      
Initial Cost of Buildings & Improvements 25,311      
Cost Capitalized Subsequent to Acquisition 677      
Carrying Amount of Land 1,300      
Carrying Amount of Buildings and Improvements 25,988      
Accumulated Depreciation 2,229      
Triple-net | Owasso, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 215      
Initial Cost of Buildings & Improvements 1,380      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 215      
Carrying Amount of Buildings and Improvements 1,380      
Accumulated Depreciation 801      
Triple-net | Owensboro, KY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 225      
Initial Cost of Buildings & Improvements 13,275      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 225      
Carrying Amount of Buildings and Improvements 13,275      
Accumulated Depreciation 5,120      
Triple-net | Owenton, KY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 100      
Initial Cost of Buildings & Improvements 2,400      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 100      
Carrying Amount of Buildings and Improvements 2,400      
Accumulated Depreciation 1,108      
Triple-net | Oxford, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,430      
Initial Cost of Buildings & Improvements 15,791      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,430      
Carrying Amount of Buildings and Improvements 15,791      
Accumulated Depreciation 3,625      
Triple-net | Palestine, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 180      
Initial Cost of Buildings & Improvements 4,320      
Cost Capitalized Subsequent to Acquisition 1,300      
Carrying Amount of Land 180      
Carrying Amount of Buildings and Improvements 5,620      
Accumulated Depreciation 1,814      
Triple-net | Palm Beach Gardens, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,082      
Initial Cost of Buildings & Improvements 6,624      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,082      
Carrying Amount of Buildings and Improvements 6,624      
Accumulated Depreciation 87      
Triple-net | Palm Coast, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 870      
Initial Cost of Buildings & Improvements 10,957      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 870      
Carrying Amount of Buildings and Improvements 10,957      
Accumulated Depreciation 2,730      
Triple-net | Palm Desert, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 6,195      
Initial Cost of Buildings & Improvements 8,922      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 6,195      
Carrying Amount of Buildings and Improvements 8,922      
Accumulated Depreciation 107      
Triple-net | Palm Harbor, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,306      
Initial Cost of Buildings & Improvements 13,811      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,306      
Carrying Amount of Buildings and Improvements 13,811      
Accumulated Depreciation 171      
Triple-net | Palm Harbor, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,281      
Initial Cost of Buildings & Improvements 22,457      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,281      
Carrying Amount of Buildings and Improvements 22,457      
Accumulated Depreciation 273      
Triple-net | Palos Heights, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,225      
Initial Cost of Buildings & Improvements 12,457      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,225      
Carrying Amount of Buildings and Improvements 12,457      
Accumulated Depreciation 141      
Triple-net | Palos Heights, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,431      
Initial Cost of Buildings & Improvements 28,812      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,431      
Carrying Amount of Buildings and Improvements 28,812      
Accumulated Depreciation 316      
Triple-net | Palos Heights, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,590      
Initial Cost of Buildings & Improvements 7,647      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,590      
Carrying Amount of Buildings and Improvements 7,647      
Accumulated Depreciation 87      
Triple-net | Panama City Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 900      
Initial Cost of Buildings & Improvements 6,402      
Cost Capitalized Subsequent to Acquisition 620      
Carrying Amount of Land 900      
Carrying Amount of Buildings and Improvements 7,022      
Accumulated Depreciation 1,161      
Triple-net | Paola, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 190      
Initial Cost of Buildings & Improvements 5,610      
Cost Capitalized Subsequent to Acquisition 59      
Carrying Amount of Land 190      
Carrying Amount of Buildings and Improvements 5,669      
Accumulated Depreciation 483      
Triple-net | Paris, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 490      
Initial Cost of Buildings & Improvements 5,452      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 490      
Carrying Amount of Buildings and Improvements 5,452      
Accumulated Depreciation 4,421      
Triple-net | Parma, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 960      
Initial Cost of Buildings & Improvements 12,722      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 960      
Carrying Amount of Buildings and Improvements 12,722      
Accumulated Depreciation 155      
Triple-net | Parma, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,833      
Initial Cost of Buildings & Improvements 10,318      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,833      
Carrying Amount of Buildings and Improvements 10,318      
Accumulated Depreciation 141      
Triple-net | Paulsboro, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,264      
Initial Cost of Buildings & Improvements 8,026      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,264      
Carrying Amount of Buildings and Improvements 8,026      
Accumulated Depreciation 99      
Triple-net | Pella, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 870      
Initial Cost of Buildings & Improvements 6,716      
Cost Capitalized Subsequent to Acquisition 89      
Carrying Amount of Land 870      
Carrying Amount of Buildings and Improvements 6,805      
Accumulated Depreciation 1,135      
Triple-net | Perrysburg, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,456      
Initial Cost of Buildings & Improvements 5,433      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,456      
Carrying Amount of Buildings and Improvements 5,433      
Accumulated Depreciation 68      
Triple-net | Perrysburg, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,213      
Initial Cost of Buildings & Improvements 7,110      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,213      
Carrying Amount of Buildings and Improvements 7,110      
Accumulated Depreciation 82      
Triple-net | Petoskey, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 860      
Initial Cost of Buildings & Improvements 14,452      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 860      
Carrying Amount of Buildings and Improvements 14,452      
Accumulated Depreciation 3,152      
Triple-net | Philadelphia, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,930      
Initial Cost of Buildings & Improvements 10,433      
Cost Capitalized Subsequent to Acquisition 3,536      
Carrying Amount of Land 2,930      
Carrying Amount of Buildings and Improvements 13,969      
Accumulated Depreciation 3,206      
Triple-net | Phillipsburg, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 800      
Initial Cost of Buildings & Improvements 21,175      
Cost Capitalized Subsequent to Acquisition 238      
Carrying Amount of Land 800      
Carrying Amount of Buildings and Improvements 21,413      
Accumulated Depreciation 4,650      
Triple-net | Phillipsburg, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 300      
Initial Cost of Buildings & Improvements 8,114      
Cost Capitalized Subsequent to Acquisition 101      
Carrying Amount of Land 300      
Carrying Amount of Buildings and Improvements 8,215      
Accumulated Depreciation 1,780      
Triple-net | Pikesville, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 2,488      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 2,488      
Accumulated Depreciation 27      
Triple-net | Pikesville, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,247      
Initial Cost of Buildings & Improvements 8,383      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,247      
Carrying Amount of Buildings and Improvements 8,383      
Accumulated Depreciation 108      
Triple-net | Pinehurst, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Buildings & Improvements 2,690      
Cost Capitalized Subsequent to Acquisition 484      
Carrying Amount of Land 290      
Carrying Amount of Buildings and Improvements 3,174      
Accumulated Depreciation 1,392      
Triple-net | Piqua, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 204      
Initial Cost of Buildings & Improvements 1,885      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 204      
Carrying Amount of Buildings and Improvements 1,885      
Accumulated Depreciation 1,024      
Triple-net | Piscataway, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,100      
Initial Cost of Buildings & Improvements 33,501      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,100      
Carrying Amount of Buildings and Improvements 33,501      
Accumulated Depreciation 1,423      
Triple-net | Pittsburgh, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 603      
Initial Cost of Buildings & Improvements 11,357      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 603      
Carrying Amount of Buildings and Improvements 11,357      
Accumulated Depreciation 137      
Triple-net | Pittsburgh, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,005      
Initial Cost of Buildings & Improvements 15,164      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,005      
Carrying Amount of Buildings and Improvements 15,164      
Accumulated Depreciation 177      
Triple-net | Pittsburgh, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,140      
Initial Cost of Buildings & Improvements 3,166      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,140      
Carrying Amount of Buildings and Improvements 3,166      
Accumulated Depreciation 37      
Triple-net | Pittsburgh, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 994      
Initial Cost of Buildings & Improvements 3,790      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 994      
Carrying Amount of Buildings and Improvements 3,790      
Accumulated Depreciation 63      
Triple-net | Pittsburgh, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 761      
Initial Cost of Buildings & Improvements 4,214      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 761      
Carrying Amount of Buildings and Improvements 4,214      
Accumulated Depreciation 47      
Triple-net | Pittsburgh, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,480      
Initial Cost of Buildings & Improvements 9,715      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,480      
Carrying Amount of Buildings and Improvements 9,715      
Accumulated Depreciation 128      
Triple-net | Pittsburgh, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,139      
Initial Cost of Buildings & Improvements 5,846      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,139      
Carrying Amount of Buildings and Improvements 5,846      
Accumulated Depreciation 75      
Triple-net | Pittsburgh, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,750      
Initial Cost of Buildings & Improvements 8,572      
Cost Capitalized Subsequent to Acquisition 6,322      
Carrying Amount of Land 1,750      
Carrying Amount of Buildings and Improvements 14,894      
Accumulated Depreciation 3,340      
Triple-net | Plainview, NY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,990      
Initial Cost of Buildings & Improvements 11,969      
Cost Capitalized Subsequent to Acquisition 1,186      
Carrying Amount of Land 3,990      
Carrying Amount of Buildings and Improvements 13,155      
Accumulated Depreciation 2,774      
Triple-net | Plano, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,840      
Initial Cost of Buildings & Improvements 20,152      
Cost Capitalized Subsequent to Acquisition 560      
Carrying Amount of Land 1,840      
Carrying Amount of Buildings and Improvements 20,712      
Accumulated Depreciation 1,579      
Triple-net | Plattsmouth, NE        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 250      
Initial Cost of Buildings & Improvements 5,650      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 250      
Carrying Amount of Buildings and Improvements 5,650      
Accumulated Depreciation 1,377      
Triple-net | Plymouth, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,490      
Initial Cost of Buildings & Improvements 19,990      
Cost Capitalized Subsequent to Acquisition 330      
Carrying Amount of Land 1,490      
Carrying Amount of Buildings and Improvements 20,320      
Accumulated Depreciation 4,431      
Triple-net | Potomac, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,448      
Initial Cost of Buildings & Improvements 14,626      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,448      
Carrying Amount of Buildings and Improvements 14,626      
Accumulated Depreciation 167      
Triple-net | Potomac, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,119      
Initial Cost of Buildings & Improvements 14,921      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,119      
Carrying Amount of Buildings and Improvements 14,921      
Accumulated Depreciation 176      
Triple-net | Pottstown, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 984      
Initial Cost of Buildings & Improvements 4,565      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 984      
Carrying Amount of Buildings and Improvements 4,565      
Accumulated Depreciation 58      
Triple-net | Pottsville, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 171      
Initial Cost of Buildings & Improvements 3,560      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 171      
Carrying Amount of Buildings and Improvements 3,560      
Accumulated Depreciation 42      
Triple-net | Prior Lake, MN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 13,806      
Initial Cost of Land 1,870      
Initial Cost of Buildings & Improvements 29,849      
Cost Capitalized Subsequent to Acquisition 300      
Carrying Amount of Land 1,870      
Carrying Amount of Buildings and Improvements 30,149      
Accumulated Depreciation 2,435      
Triple-net | Puyallup, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,150      
Initial Cost of Buildings & Improvements 20,776      
Cost Capitalized Subsequent to Acquisition 505      
Carrying Amount of Land 1,156      
Carrying Amount of Buildings and Improvements 21,275      
Accumulated Depreciation 5,775      
Triple-net | Raleigh, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 7,598      
Initial Cost of Buildings & Improvements 88,870      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 7,598      
Carrying Amount of Buildings and Improvements 88,870      
Accumulated Depreciation 4,212      
Triple-net | Raleigh, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,530      
Initial Cost of Buildings & Improvements 59,589      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,530      
Carrying Amount of Buildings and Improvements 59,589      
Accumulated Depreciation 9,825      
Triple-net | Raleigh, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,580      
Initial Cost of Buildings & Improvements 16,837      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,580      
Carrying Amount of Buildings and Improvements 16,837      
Accumulated Depreciation 2,965      
Triple-net | Reading, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 980      
Initial Cost of Buildings & Improvements 19,906      
Cost Capitalized Subsequent to Acquisition 140      
Carrying Amount of Land 980      
Carrying Amount of Buildings and Improvements 20,046      
Accumulated Depreciation 4,293      
Triple-net | Red Bank, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,050      
Initial Cost of Buildings & Improvements 21,275      
Cost Capitalized Subsequent to Acquisition 586      
Carrying Amount of Land 1,050      
Carrying Amount of Buildings and Improvements 21,861      
Accumulated Depreciation 4,176      
Triple-net | Reidsville, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 170      
Initial Cost of Buildings & Improvements 3,830      
Cost Capitalized Subsequent to Acquisition 857      
Carrying Amount of Land 170      
Carrying Amount of Buildings and Improvements 4,687      
Accumulated Depreciation 2,045      
Triple-net | Reno, NV        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,060      
Initial Cost of Buildings & Improvements 11,440      
Cost Capitalized Subsequent to Acquisition 659      
Carrying Amount of Land 1,060      
Carrying Amount of Buildings and Improvements 12,099      
Accumulated Depreciation 4,440      
Triple-net | Rexburg, ID        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,267      
Initial Cost of Buildings & Improvements 3,213      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,267      
Carrying Amount of Buildings and Improvements 3,213      
Accumulated Depreciation 383      
Triple-net | Richardson, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,468      
Initial Cost of Buildings & Improvements 12,979      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,468      
Carrying Amount of Buildings and Improvements 12,979      
Accumulated Depreciation 154      
Triple-net | Richmond, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 700      
Initial Cost of Buildings & Improvements 14,222      
Cost Capitalized Subsequent to Acquisition 393      
Carrying Amount of Land 700      
Carrying Amount of Buildings and Improvements 14,615      
Accumulated Depreciation 1,256      
Triple-net | Richmond, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 12,000      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 250      
Carrying Amount of Buildings and Improvements 11,750      
Accumulated Depreciation 2,018      
Triple-net | Richmond, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,261      
Initial Cost of Buildings & Improvements 17,980      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,261      
Carrying Amount of Buildings and Improvements 17,980      
Accumulated Depreciation 203      
Triple-net | Richmond, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,046      
Initial Cost of Buildings & Improvements 8,235      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,046      
Carrying Amount of Buildings and Improvements 8,235      
Accumulated Depreciation 100      
Triple-net | Ridgeland, MS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 520      
Initial Cost of Buildings & Improvements 7,675      
Cost Capitalized Subsequent to Acquisition 437      
Carrying Amount of Land 520      
Carrying Amount of Buildings and Improvements 8,112      
Accumulated Depreciation 3,162      
Triple-net | Roanoke, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 748      
Initial Cost of Buildings & Improvements 4,483      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 748      
Carrying Amount of Buildings and Improvements 4,483      
Accumulated Depreciation 435      
Triple-net | Rochdale, MA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 7,100      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 690      
Carrying Amount of Buildings and Improvements 6,410      
Accumulated Depreciation 1,039      
Triple-net | Rockville Centre, NY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,290      
Initial Cost of Buildings & Improvements 20,310      
Cost Capitalized Subsequent to Acquisition 932      
Carrying Amount of Land 4,290      
Carrying Amount of Buildings and Improvements 21,242      
Accumulated Depreciation 4,259      
Triple-net | Rockwall, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,220      
Initial Cost of Buildings & Improvements 17,650      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,220      
Carrying Amount of Buildings and Improvements 17,650      
Accumulated Depreciation 1,590      
Triple-net | Romeoville, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,895      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,895      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation 0      
Triple-net | Roseville, MN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,140      
Initial Cost of Buildings & Improvements 24,679      
Cost Capitalized Subsequent to Acquisition 100      
Carrying Amount of Land 2,140      
Carrying Amount of Buildings and Improvements 24,779      
Accumulated Depreciation 2,037      
Triple-net | Roswell, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,107      
Initial Cost of Buildings & Improvements 9,627      
Cost Capitalized Subsequent to Acquisition 1,127      
Carrying Amount of Land 1,114      
Carrying Amount of Buildings and Improvements 10,747      
Accumulated Depreciation 8,139      
Triple-net | Roswell, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,080      
Initial Cost of Buildings & Improvements 6,486      
Cost Capitalized Subsequent to Acquisition 1,130      
Carrying Amount of Land 2,380      
Carrying Amount of Buildings and Improvements 7,316      
Accumulated Depreciation 1,645      
Triple-net | Rugeley, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,900      
Initial Cost of Buildings & Improvements 10,262      
Cost Capitalized Subsequent to Acquisition 411      
Carrying Amount of Land 1,964      
Carrying Amount of Buildings and Improvements 10,609      
Accumulated Depreciation 1,603      
Triple-net | Ruston, LA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 710      
Initial Cost of Buildings & Improvements 9,790      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 710      
Carrying Amount of Buildings and Improvements 9,790      
Accumulated Depreciation 2,133      
Triple-net | S Holland, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,423      
Initial Cost of Buildings & Improvements 8,910      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,423      
Carrying Amount of Buildings and Improvements 8,910      
Accumulated Depreciation 108      
Triple-net | Salem, OR        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 449      
Initial Cost of Buildings & Improvements 5,171      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 449      
Carrying Amount of Buildings and Improvements 5,172      
Accumulated Depreciation 2,706      
Triple-net | Salisbury, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 370      
Initial Cost of Buildings & Improvements 5,697      
Cost Capitalized Subsequent to Acquisition 168      
Carrying Amount of Land 370      
Carrying Amount of Buildings and Improvements 5,865      
Accumulated Depreciation 2,422      
Triple-net | San Angelo, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,050      
Initial Cost of Buildings & Improvements 24,689      
Cost Capitalized Subsequent to Acquisition 1,221      
Carrying Amount of Land 1,050      
Carrying Amount of Buildings and Improvements 25,910      
Accumulated Depreciation 3,073      
Triple-net | San Antonio, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,499      
Initial Cost of Buildings & Improvements 12,662      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,499      
Carrying Amount of Buildings and Improvements 12,662      
Accumulated Depreciation 149      
Triple-net | San Antonio, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 17,303      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 17,303      
Accumulated Depreciation 7,781      
Triple-net | San Bernardino, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,700      
Initial Cost of Buildings & Improvements 14,300      
Cost Capitalized Subsequent to Acquisition 687      
Carrying Amount of Land 3,700      
Carrying Amount of Buildings and Improvements 14,987      
Accumulated Depreciation 3,865      
Triple-net | San Diego, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 22,003      
Cost Capitalized Subsequent to Acquisition 1,845      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 23,848      
Accumulated Depreciation 6,068      
Triple-net | Sand Springs, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 910      
Initial Cost of Buildings & Improvements 19,654      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 910      
Carrying Amount of Buildings and Improvements 19,654      
Accumulated Depreciation 3,346      
Triple-net | Sarasota, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 475      
Initial Cost of Buildings & Improvements 3,175      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 475      
Carrying Amount of Buildings and Improvements 3,175      
Accumulated Depreciation 1,917      
Triple-net | Sarasota, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,101      
Initial Cost of Buildings & Improvements 11,208      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,101      
Carrying Amount of Buildings and Improvements 11,208      
Accumulated Depreciation 212      
Triple-net | Sarasota, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,370      
Initial Cost of Buildings & Improvements 4,084      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,370      
Carrying Amount of Buildings and Improvements 4,084      
Accumulated Depreciation 49      
Triple-net | Sarasota, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,792      
Initial Cost of Buildings & Improvements 11,177      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,792      
Carrying Amount of Buildings and Improvements 11,177      
Accumulated Depreciation 131      
Triple-net | Sarasota, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,360      
Initial Cost of Buildings & Improvements 19,140      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,360      
Carrying Amount of Buildings and Improvements 19,140      
Accumulated Depreciation 3,681      
Triple-net | Sarasota, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 443      
Initial Cost of Buildings & Improvements 9,699      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 443      
Carrying Amount of Buildings and Improvements 9,699      
Accumulated Depreciation 120      
Triple-net | Scranton, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 440      
Initial Cost of Buildings & Improvements 17,609      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 440      
Carrying Amount of Buildings and Improvements 17,609      
Accumulated Depreciation 2,032      
Triple-net | Scranton, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 320      
Initial Cost of Buildings & Improvements 12,144      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 320      
Carrying Amount of Buildings and Improvements 12,145      
Accumulated Depreciation 1,400      
Triple-net | Seminole, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,165      
Initial Cost of Buildings & Improvements 8,977      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,165      
Carrying Amount of Buildings and Improvements 8,977      
Accumulated Depreciation 113      
Triple-net | Seven Fields, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 484      
Initial Cost of Buildings & Improvements 4,663      
Cost Capitalized Subsequent to Acquisition 59      
Carrying Amount of Land 484      
Carrying Amount of Buildings and Improvements 4,722      
Accumulated Depreciation 2,475      
Triple-net | Severna Park, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,120      
Initial Cost of Buildings & Improvements 31,273      
Cost Capitalized Subsequent to Acquisition 808      
Carrying Amount of Land 2,120      
Carrying Amount of Buildings and Improvements 32,081      
Accumulated Depreciation 6,616      
Triple-net | Sewell, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,127      
Initial Cost of Buildings & Improvements 14,095      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,127      
Carrying Amount of Buildings and Improvements 14,095      
Accumulated Depreciation 188      
Triple-net | Shawnee, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 80      
Initial Cost of Buildings & Improvements 1,400      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 80      
Carrying Amount of Buildings and Improvements 1,400      
Accumulated Depreciation 837      
Triple-net | Shelbyville, KY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 630      
Initial Cost of Buildings & Improvements 3,870      
Cost Capitalized Subsequent to Acquisition 630      
Carrying Amount of Land 630      
Carrying Amount of Buildings and Improvements 4,500      
Accumulated Depreciation 1,579      
Triple-net | Sherman, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 700      
Initial Cost of Buildings & Improvements 5,221      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 700      
Carrying Amount of Buildings and Improvements 5,221      
Accumulated Depreciation 1,696      
Triple-net | Silver Spring, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,469      
Initial Cost of Buildings & Improvements 10,395      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,469      
Carrying Amount of Buildings and Improvements 10,395      
Accumulated Depreciation 122      
Triple-net | Silver Spring, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,678      
Initial Cost of Buildings & Improvements 11,683      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,678      
Carrying Amount of Buildings and Improvements 11,683      
Accumulated Depreciation 146      
Triple-net | Silvis, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 880      
Initial Cost of Buildings & Improvements 16,420      
Cost Capitalized Subsequent to Acquisition 139      
Carrying Amount of Land 880      
Carrying Amount of Buildings and Improvements 16,559      
Accumulated Depreciation 3,691      
Triple-net | Sinking Spring, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,393      
Initial Cost of Buildings & Improvements 19,848      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,393      
Carrying Amount of Buildings and Improvements 19,848      
Accumulated Depreciation 231      
Triple-net | Sittingbourne, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,357      
Initial Cost of Buildings & Improvements 6,539      
Cost Capitalized Subsequent to Acquisition 267      
Carrying Amount of Land 1,403      
Carrying Amount of Buildings and Improvements 6,760      
Accumulated Depreciation 715      
Triple-net | Smithfield, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 290      
Initial Cost of Buildings & Improvements 5,680      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 290      
Carrying Amount of Buildings and Improvements 5,680      
Accumulated Depreciation 2,363      
Triple-net | Smithfield, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 360      
Initial Cost of Buildings & Improvements 8,216      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 360      
Carrying Amount of Buildings and Improvements 8,216      
Accumulated Depreciation 946      
Triple-net | South Bend, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 670      
Initial Cost of Buildings & Improvements 17,770      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 670      
Carrying Amount of Buildings and Improvements 17,770      
Accumulated Depreciation 2,128      
Triple-net | South Point, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,135      
Initial Cost of Buildings & Improvements 9,390      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,135      
Carrying Amount of Buildings and Improvements 9,390      
Accumulated Depreciation 109      
Triple-net | Southampton, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,519      
Initial Cost of Buildings & Improvements 16,041      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,519      
Carrying Amount of Buildings and Improvements 16,041      
Accumulated Depreciation 541      
Triple-net | Southbury, CT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,860      
Initial Cost of Buildings & Improvements 23,613      
Cost Capitalized Subsequent to Acquisition 958      
Carrying Amount of Land 1,860      
Carrying Amount of Buildings and Improvements 24,571      
Accumulated Depreciation 4,939      
Triple-net | Spokane, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,200      
Initial Cost of Buildings & Improvements 25,064      
Cost Capitalized Subsequent to Acquisition 284      
Carrying Amount of Land 3,200      
Carrying Amount of Buildings and Improvements 25,348      
Accumulated Depreciation 6,895      
Triple-net | Spokane, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,580      
Initial Cost of Buildings & Improvements 25,342      
Cost Capitalized Subsequent to Acquisition 195      
Carrying Amount of Land 2,580      
Carrying Amount of Buildings and Improvements 25,537      
Accumulated Depreciation 5,958      
Triple-net | Spokane, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,649      
Initial Cost of Buildings & Improvements 11,703      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,649      
Carrying Amount of Buildings and Improvements 11,703      
Accumulated Depreciation 138      
Triple-net | Springfield, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 10,100      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 768      
Carrying Amount of Buildings and Improvements 9,332      
Accumulated Depreciation 2,107      
Triple-net | Springfield, IL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 990      
Initial Cost of Buildings & Improvements 13,378      
Cost Capitalized Subsequent to Acquisition 1,085      
Carrying Amount of Land 990      
Carrying Amount of Buildings and Improvements 14,463      
Accumulated Depreciation 1,707      
Triple-net | St. Louis, MO        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,890      
Initial Cost of Buildings & Improvements 12,390      
Cost Capitalized Subsequent to Acquisition 787      
Carrying Amount of Land 1,890      
Carrying Amount of Buildings and Improvements 13,177      
Accumulated Depreciation 2,691      
Triple-net | St. Paul, MN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,100      
Initial Cost of Buildings & Improvements 33,019      
Cost Capitalized Subsequent to Acquisition 100      
Carrying Amount of Land 2,100      
Carrying Amount of Buildings and Improvements 33,119      
Accumulated Depreciation 2,698      
Triple-net | Stafford, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,009      
Initial Cost of Buildings & Improvements 8,238      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,009      
Carrying Amount of Buildings and Improvements 8,238      
Accumulated Depreciation 499      
Triple-net | Stamford, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,820      
Initial Cost of Buildings & Improvements 3,238      
Cost Capitalized Subsequent to Acquisition 171      
Carrying Amount of Land 1,881      
Carrying Amount of Buildings and Improvements 3,348      
Accumulated Depreciation 378      
Triple-net | Statesville, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 150      
Initial Cost of Buildings & Improvements 1,447      
Cost Capitalized Subsequent to Acquisition 266      
Carrying Amount of Land 150      
Carrying Amount of Buildings and Improvements 1,713      
Accumulated Depreciation 749      
Triple-net | Statesville, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 310      
Initial Cost of Buildings & Improvements 6,183      
Cost Capitalized Subsequent to Acquisition 8      
Carrying Amount of Land 310      
Carrying Amount of Buildings and Improvements 6,191      
Accumulated Depreciation 2,514      
Triple-net | Statesville, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 140      
Initial Cost of Buildings & Improvements 3,627      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 140      
Carrying Amount of Buildings and Improvements 3,627      
Accumulated Depreciation 1,503      
Triple-net | Staunton, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 899      
Initial Cost of Buildings & Improvements 6,391      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 899      
Carrying Amount of Buildings and Improvements 6,391      
Accumulated Depreciation 432      
Triple-net | Sterling Heights, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 790      
Initial Cost of Buildings & Improvements 10,787      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 790      
Carrying Amount of Buildings and Improvements 10,787      
Accumulated Depreciation 128      
Triple-net | Sterling Heights, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,583      
Initial Cost of Buildings & Improvements 15,639      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,583      
Carrying Amount of Buildings and Improvements 15,639      
Accumulated Depreciation 188      
Triple-net | Stillwater, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 80      
Initial Cost of Buildings & Improvements 1,400      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 80      
Carrying Amount of Buildings and Improvements 1,400      
Accumulated Depreciation 839      
Triple-net | Stratford-upon-Avon, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 790      
Initial Cost of Buildings & Improvements 14,508      
Cost Capitalized Subsequent to Acquisition 517      
Carrying Amount of Land 816      
Carrying Amount of Buildings and Improvements 14,999      
Accumulated Depreciation 1,443      
Triple-net | Stroudsburg, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 340      
Initial Cost of Buildings & Improvements 16,313      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 340      
Carrying Amount of Buildings and Improvements 16,313      
Accumulated Depreciation 2,096      
Triple-net | Summit, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,080      
Initial Cost of Buildings & Improvements 14,152      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,080      
Carrying Amount of Buildings and Improvements 14,152      
Accumulated Depreciation 3,027      
Triple-net | Sun City West, AZ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,250      
Initial Cost of Buildings & Improvements 21,778      
Cost Capitalized Subsequent to Acquisition 600      
Carrying Amount of Land 1,250      
Carrying Amount of Buildings and Improvements 22,378      
Accumulated Depreciation 4,357      
Triple-net | Sunbury, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 695      
Initial Cost of Buildings & Improvements 7,246      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 695      
Carrying Amount of Buildings and Improvements 7,246      
Accumulated Depreciation 82      
Triple-net | Sunnyvale, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,946      
Initial Cost of Buildings & Improvements 22,131      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,946      
Carrying Amount of Buildings and Improvements 22,131      
Accumulated Depreciation 251      
Triple-net | Sunninghill, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 11,632      
Initial Cost of Buildings & Improvements 42,233      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 11,632      
Carrying Amount of Buildings and Improvements 42,233      
Accumulated Depreciation 1,689      
Triple-net | Superior, WI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,020      
Initial Cost of Buildings & Improvements 13,735      
Cost Capitalized Subsequent to Acquisition 6,159      
Carrying Amount of Land 1,020      
Carrying Amount of Buildings and Improvements 19,894      
Accumulated Depreciation 2,909      
Triple-net | Tacoma, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,522      
Initial Cost of Buildings & Improvements 8,576      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,522      
Carrying Amount of Buildings and Improvements 8,576      
Accumulated Depreciation 99      
Triple-net | Tampa, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,315      
Initial Cost of Buildings & Improvements 6,913      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,315      
Carrying Amount of Buildings and Improvements 6,913      
Accumulated Depreciation 94      
Triple-net | Terre Haute, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,370      
Initial Cost of Buildings & Improvements 18,016      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,370      
Carrying Amount of Buildings and Improvements 18,016      
Accumulated Depreciation 1,936      
Triple-net | Texarkana, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 192      
Initial Cost of Buildings & Improvements 1,403      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 192      
Carrying Amount of Buildings and Improvements 1,403      
Accumulated Depreciation 814      
Triple-net | The Villages, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,035      
Initial Cost of Buildings & Improvements 7,446      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,035      
Carrying Amount of Buildings and Improvements 7,446      
Accumulated Depreciation 1,103      
Triple-net | Thomasville, GA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 530      
Initial Cost of Buildings & Improvements 12,520      
Cost Capitalized Subsequent to Acquisition 540      
Carrying Amount of Land 530      
Carrying Amount of Buildings and Improvements 13,060      
Accumulated Depreciation 2,093      
Triple-net | Three Rivers, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,258      
Initial Cost of Buildings & Improvements 2,761      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,258      
Carrying Amount of Buildings and Improvements 2,761      
Accumulated Depreciation 43      
Triple-net | Tomball, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,050      
Initial Cost of Buildings & Improvements 13,300      
Cost Capitalized Subsequent to Acquisition 840      
Carrying Amount of Land 1,050      
Carrying Amount of Buildings and Improvements 14,140      
Accumulated Depreciation 2,805      
Triple-net | Tonganoxie, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 310      
Initial Cost of Buildings & Improvements 3,690      
Cost Capitalized Subsequent to Acquisition 76      
Carrying Amount of Land 310      
Carrying Amount of Buildings and Improvements 3,766      
Accumulated Depreciation 353      
Triple-net | Topeka, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 260      
Initial Cost of Buildings & Improvements 12,712      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 260      
Carrying Amount of Buildings and Improvements 12,712      
Accumulated Depreciation 2,236      
Triple-net | Towson, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,180      
Initial Cost of Buildings & Improvements 13,280      
Cost Capitalized Subsequent to Acquisition 195      
Carrying Amount of Land 1,180      
Carrying Amount of Buildings and Improvements 13,475      
Accumulated Depreciation 2,974      
Triple-net | Towson, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,715      
Initial Cost of Buildings & Improvements 13,115      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,715      
Carrying Amount of Buildings and Improvements 13,115      
Accumulated Depreciation 154      
Triple-net | Towson, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,100      
Initial Cost of Buildings & Improvements 6,468      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,100      
Carrying Amount of Buildings and Improvements 6,468      
Accumulated Depreciation 73      
Triple-net | Towson, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,527      
Initial Cost of Buildings & Improvements 3,128      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,527      
Carrying Amount of Buildings and Improvements 3,128      
Accumulated Depreciation 44      
Triple-net | Troy, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,381      
Initial Cost of Buildings & Improvements 24,452      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,381      
Carrying Amount of Buildings and Improvements 24,452      
Accumulated Depreciation 275      
Triple-net | Troy, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Buildings & Improvements 2,000      
Cost Capitalized Subsequent to Acquisition 4,254      
Carrying Amount of Land 200      
Carrying Amount of Buildings and Improvements 6,254      
Accumulated Depreciation 2,177      
Triple-net | Trumbull, CT        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,440      
Initial Cost of Buildings & Improvements 43,384      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,440      
Carrying Amount of Buildings and Improvements 43,384      
Accumulated Depreciation 8,857      
Triple-net | Tucson, AZ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 830      
Initial Cost of Buildings & Improvements 6,179      
Cost Capitalized Subsequent to Acquisition 3,370      
Carrying Amount of Land 830      
Carrying Amount of Buildings and Improvements 9,549      
Accumulated Depreciation 1,678      
Triple-net | Tulsa, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,003      
Initial Cost of Buildings & Improvements 6,025      
Cost Capitalized Subsequent to Acquisition 20      
Carrying Amount of Land 3,003      
Carrying Amount of Buildings and Improvements 6,045      
Accumulated Depreciation 3,553      
Triple-net | Tulsa, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,390      
Initial Cost of Buildings & Improvements 7,110      
Cost Capitalized Subsequent to Acquisition 1,102      
Carrying Amount of Land 1,390      
Carrying Amount of Buildings and Improvements 8,212      
Accumulated Depreciation 1,986      
Triple-net | Tulsa, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,320      
Initial Cost of Buildings & Improvements 10,087      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,320      
Carrying Amount of Buildings and Improvements 10,087      
Accumulated Depreciation 1,825      
Triple-net | Tulsa, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,100      
Initial Cost of Buildings & Improvements 27,007      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,100      
Carrying Amount of Buildings and Improvements 27,007      
Accumulated Depreciation 1,388      
Triple-net | Tulsa, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 13,000      
Initial Cost of Land 1,752      
Initial Cost of Buildings & Improvements 28,421      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,752      
Carrying Amount of Buildings and Improvements 28,421      
Accumulated Depreciation 1,215      
Triple-net | Tulsa, OK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 890      
Initial Cost of Buildings & Improvements 9,410      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 890      
Carrying Amount of Buildings and Improvements 9,410      
Accumulated Depreciation 308      
Triple-net | Twinsburg, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,446      
Initial Cost of Buildings & Improvements 5,921      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,446      
Carrying Amount of Buildings and Improvements 5,921      
Accumulated Depreciation 77      
Triple-net | Tyler, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 650      
Initial Cost of Buildings & Improvements 5,268      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 650      
Carrying Amount of Buildings and Improvements 5,268      
Accumulated Depreciation 1,651      
Triple-net | Union, SC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,932      
Initial Cost of Buildings & Improvements 2,374      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,932      
Carrying Amount of Buildings and Improvements 2,374      
Accumulated Depreciation 43      
Triple-net | Valparaiso, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 112      
Initial Cost of Buildings & Improvements 2,558      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 112      
Carrying Amount of Buildings and Improvements 2,558      
Accumulated Depreciation 1,206      
Triple-net | Valparaiso, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 108      
Initial Cost of Buildings & Improvements 2,962      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 108      
Carrying Amount of Buildings and Improvements 2,962      
Accumulated Depreciation 1,379      
Triple-net | Vancouver, WA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,503      
Initial Cost of Buildings & Improvements 28,401      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,503      
Carrying Amount of Buildings and Improvements 28,401      
Accumulated Depreciation 316      
Triple-net | Venice, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,150      
Initial Cost of Buildings & Improvements 10,674      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,150      
Carrying Amount of Buildings and Improvements 10,674      
Accumulated Depreciation 2,717      
Triple-net | Venice, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,246      
Initial Cost of Buildings & Improvements 10,097      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,246      
Carrying Amount of Buildings and Improvements 10,097      
Accumulated Depreciation 126      
Triple-net | Vero Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 263      
Initial Cost of Buildings & Improvements 3,187      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 263      
Carrying Amount of Buildings and Improvements 3,187      
Accumulated Depreciation 1,474      
Triple-net | Vero Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 297      
Initial Cost of Buildings & Improvements 3,263      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 297      
Carrying Amount of Buildings and Improvements 3,263      
Accumulated Depreciation 1,518      
Triple-net | Virginia Beach, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,540      
Initial Cost of Buildings & Improvements 22,593      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,540      
Carrying Amount of Buildings and Improvements 22,593      
Accumulated Depreciation 2,639      
Triple-net | Voorhees, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,800      
Initial Cost of Buildings & Improvements 37,299      
Cost Capitalized Subsequent to Acquisition 671      
Carrying Amount of Land 1,800      
Carrying Amount of Buildings and Improvements 37,970      
Accumulated Depreciation 8,097      
Triple-net | Voorhees, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,900      
Initial Cost of Buildings & Improvements 26,040      
Cost Capitalized Subsequent to Acquisition 894      
Carrying Amount of Land 1,900      
Carrying Amount of Buildings and Improvements 26,934      
Accumulated Depreciation 5,768      
Triple-net | Voorhees, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,100      
Initial Cost of Buildings & Improvements 25,950      
Cost Capitalized Subsequent to Acquisition 26      
Carrying Amount of Land 3,100      
Carrying Amount of Buildings and Improvements 25,976      
Accumulated Depreciation 4,484      
Triple-net | Voorhees, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,193      
Initial Cost of Buildings & Improvements 6,992      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,193      
Carrying Amount of Buildings and Improvements 6,992      
Accumulated Depreciation 91      
Triple-net | W Palm Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,175      
Initial Cost of Buildings & Improvements 8,297      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,175      
Carrying Amount of Buildings and Improvements 8,297      
Accumulated Depreciation 106      
Triple-net | W Palm Beach, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,921      
Initial Cost of Buildings & Improvements 5,733      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,921      
Carrying Amount of Buildings and Improvements 5,733      
Accumulated Depreciation 71      
Triple-net | Wabash, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 670      
Initial Cost of Buildings & Improvements 14,588      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 670      
Carrying Amount of Buildings and Improvements 14,589      
Accumulated Depreciation 1,825      
Triple-net | Waconia, MN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 890      
Initial Cost of Buildings & Improvements 14,726      
Cost Capitalized Subsequent to Acquisition 4,495      
Carrying Amount of Land 890      
Carrying Amount of Buildings and Improvements 19,221      
Accumulated Depreciation 3,580      
Triple-net | Wake Forest, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 200      
Initial Cost of Buildings & Improvements 3,003      
Cost Capitalized Subsequent to Acquisition 1,742      
Carrying Amount of Land 200      
Carrying Amount of Buildings and Improvements 4,745      
Accumulated Depreciation 2,308      
Triple-net | Wallingford, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,356      
Initial Cost of Buildings & Improvements 6,489      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,356      
Carrying Amount of Buildings and Improvements 6,489      
Accumulated Depreciation 86      
Triple-net | Walnut Creek, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 4,358      
Initial Cost of Buildings & Improvements 18,413      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,358      
Carrying Amount of Buildings and Improvements 18,413      
Accumulated Depreciation 214      
Triple-net | Walnut Creek, CA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 5,394      
Initial Cost of Buildings & Improvements 39,096      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 5,394      
Carrying Amount of Buildings and Improvements 39,096      
Accumulated Depreciation 432      
Triple-net | Walsall, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,184      
Initial Cost of Buildings & Improvements 8,562      
Cost Capitalized Subsequent to Acquisition 329      
Carrying Amount of Land 1,224      
Carrying Amount of Buildings and Improvements 8,851      
Accumulated Depreciation 902      
Triple-net | Wamego, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 40      
Initial Cost of Buildings & Improvements 2,510      
Cost Capitalized Subsequent to Acquisition 57      
Carrying Amount of Land 40      
Carrying Amount of Buildings and Improvements 2,567      
Accumulated Depreciation 223      
Triple-net | Wareham, MA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 875      
Initial Cost of Buildings & Improvements 10,313      
Cost Capitalized Subsequent to Acquisition 1,701      
Carrying Amount of Land 875      
Carrying Amount of Buildings and Improvements 12,014      
Accumulated Depreciation 5,527      
Triple-net | Warren, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,000      
Initial Cost of Buildings & Improvements 30,810      
Cost Capitalized Subsequent to Acquisition 1,073      
Carrying Amount of Land 2,000      
Carrying Amount of Buildings and Improvements 31,883      
Accumulated Depreciation 6,023      
Triple-net | Waterloo, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 605      
Initial Cost of Buildings & Improvements 3,031      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 605      
Carrying Amount of Buildings and Improvements 3,031      
Accumulated Depreciation 39      
Triple-net | Waukee, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,870      
Initial Cost of Buildings & Improvements 31,878      
Cost Capitalized Subsequent to Acquisition 1,075      
Carrying Amount of Land 1,870      
Carrying Amount of Buildings and Improvements 32,953      
Accumulated Depreciation 5,402      
Triple-net | Waxahachie, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 650      
Initial Cost of Buildings & Improvements 5,763      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 650      
Carrying Amount of Buildings and Improvements 5,763      
Accumulated Depreciation 1,680      
Triple-net | Wayne, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,427      
Initial Cost of Buildings & Improvements 16,751      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,427      
Carrying Amount of Buildings and Improvements 16,751      
Accumulated Depreciation 237      
Triple-net | Weatherford, TX        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 660      
Initial Cost of Buildings & Improvements 5,261      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 660      
Carrying Amount of Buildings and Improvements 5,261      
Accumulated Depreciation 1,662      
Triple-net | Wellingborough, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,480      
Initial Cost of Buildings & Improvements 5,724      
Cost Capitalized Subsequent to Acquisition 243      
Carrying Amount of Land 1,530      
Carrying Amount of Buildings and Improvements 5,917      
Accumulated Depreciation 681      
Triple-net | West Bend, WI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 620      
Initial Cost of Buildings & Improvements 17,790      
Cost Capitalized Subsequent to Acquisition 38      
Carrying Amount of Land 620      
Carrying Amount of Buildings and Improvements 17,828      
Accumulated Depreciation 3,310      
Triple-net | West Des Moines, IA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 828      
Initial Cost of Buildings & Improvements 5,104      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 828      
Carrying Amount of Buildings and Improvements 5,104      
Accumulated Depreciation 66      
Triple-net | West Orange, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,347      
Initial Cost of Buildings & Improvements 20,467      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,347      
Carrying Amount of Buildings and Improvements 20,467      
Accumulated Depreciation 274      
Triple-net | West Reading, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 890      
Initial Cost of Buildings & Improvements 12,122      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 890      
Carrying Amount of Buildings and Improvements 12,122      
Accumulated Depreciation 133      
Triple-net | Westerville, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 740      
Initial Cost of Buildings & Improvements 8,287      
Cost Capitalized Subsequent to Acquisition 3,105      
Carrying Amount of Land 740      
Carrying Amount of Buildings and Improvements 11,392      
Accumulated Depreciation 9,722      
Triple-net | Westerville, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,420      
Initial Cost of Buildings & Improvements 5,373      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,420      
Carrying Amount of Buildings and Improvements 5,373      
Accumulated Depreciation 66      
Triple-net | Westerville, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,582      
Initial Cost of Buildings & Improvements 10,282      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,582      
Carrying Amount of Buildings and Improvements 10,282      
Accumulated Depreciation 128      
Triple-net | Westfield, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 890      
Initial Cost of Buildings & Improvements 15,964      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 890      
Carrying Amount of Buildings and Improvements 15,965      
Accumulated Depreciation 1,981      
Triple-net | Westfield, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,270      
Initial Cost of Buildings & Improvements 16,589      
Cost Capitalized Subsequent to Acquisition 497      
Carrying Amount of Land 2,270      
Carrying Amount of Buildings and Improvements 17,086      
Accumulated Depreciation 4,001      
Triple-net | Westlake, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 855      
Initial Cost of Buildings & Improvements 11,966      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 855      
Carrying Amount of Buildings and Improvements 11,966      
Accumulated Depreciation 143      
Triple-net | Weston Super Mare, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,517      
Initial Cost of Buildings & Improvements 7,054      
Cost Capitalized Subsequent to Acquisition 324      
Carrying Amount of Land 2,602      
Carrying Amount of Buildings and Improvements 7,293      
Accumulated Depreciation 1,047      
Triple-net | Wheaton, MD        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,864      
Initial Cost of Buildings & Improvements 3,790      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,864      
Carrying Amount of Buildings and Improvements 3,790      
Accumulated Depreciation 48      
Triple-net | Whippany, NJ        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,571      
Initial Cost of Buildings & Improvements 14,982      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,571      
Carrying Amount of Buildings and Improvements 14,982      
Accumulated Depreciation 180      
Triple-net | White Lake, MI        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,920      
Initial Cost of Buildings & Improvements 20,179      
Cost Capitalized Subsequent to Acquisition 92      
Carrying Amount of Land 2,920      
Carrying Amount of Buildings and Improvements 20,271      
Accumulated Depreciation 4,516      
Triple-net | Wichita, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,400      
Initial Cost of Buildings & Improvements 11,000      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,400      
Carrying Amount of Buildings and Improvements 11,000      
Accumulated Depreciation 4,844      
Triple-net | Wichita, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 860      
Initial Cost of Buildings & Improvements 8,873      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 860      
Carrying Amount of Buildings and Improvements 8,873      
Accumulated Depreciation 1,792      
Triple-net | Wichita, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 12,779      
Initial Cost of Land 630      
Initial Cost of Buildings & Improvements 19,747      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 630      
Carrying Amount of Buildings and Improvements 19,747      
Accumulated Depreciation 3,328      
Triple-net | Wichita, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 260      
Initial Cost of Buildings & Improvements 2,240      
Cost Capitalized Subsequent to Acquisition 129      
Carrying Amount of Land 260      
Carrying Amount of Buildings and Improvements 2,369      
Accumulated Depreciation 207      
Triple-net | Wichita, KS        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 900      
Initial Cost of Buildings & Improvements 10,134      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 900      
Carrying Amount of Buildings and Improvements 10,134      
Accumulated Depreciation 1,932      
Triple-net | Wilkes-Barre, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 753      
Initial Cost of Buildings & Improvements 3,457      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 753      
Carrying Amount of Buildings and Improvements 3,457      
Accumulated Depreciation 48      
Triple-net | Williamsburg, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,187      
Initial Cost of Buildings & Improvements 5,728      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,187      
Carrying Amount of Buildings and Improvements 5,728      
Accumulated Depreciation 375      
Triple-net | Williamsport, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 919      
Initial Cost of Buildings & Improvements 6,926      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 919      
Carrying Amount of Buildings and Improvements 6,926      
Accumulated Depreciation 83      
Triple-net | Williamsport, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 780      
Initial Cost of Buildings & Improvements 1,899      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 780      
Carrying Amount of Buildings and Improvements 1,899      
Accumulated Depreciation 30      
Triple-net | Williamstown, KY        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 70      
Initial Cost of Buildings & Improvements 6,430      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 70      
Carrying Amount of Buildings and Improvements 6,430      
Accumulated Depreciation 2,501      
Triple-net | Willoughby, OH        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,774      
Initial Cost of Buildings & Improvements 8,655      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,774      
Carrying Amount of Buildings and Improvements 8,655      
Accumulated Depreciation 105      
Triple-net | Wilmington, DE        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 800      
Initial Cost of Buildings & Improvements 9,494      
Cost Capitalized Subsequent to Acquisition 114      
Carrying Amount of Land 800      
Carrying Amount of Buildings and Improvements 9,608      
Accumulated Depreciation 2,193      
Triple-net | Wilmington, DE        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,376      
Initial Cost of Buildings & Improvements 13,454      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,376      
Carrying Amount of Buildings and Improvements 13,454      
Accumulated Depreciation 159      
Triple-net | Wilmington, DE        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,843      
Initial Cost of Buildings & Improvements 36,959      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,843      
Carrying Amount of Buildings and Improvements 36,959      
Accumulated Depreciation 419      
Triple-net | Wilmington, DE        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,266      
Initial Cost of Buildings & Improvements 9,503      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,266      
Carrying Amount of Buildings and Improvements 9,503      
Accumulated Depreciation 115      
Triple-net | Wilmington, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 210      
Initial Cost of Buildings & Improvements 2,991      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 210      
Carrying Amount of Buildings and Improvements 2,991      
Accumulated Depreciation 1,560      
Triple-net | Wilmington, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 400      
Initial Cost of Buildings & Improvements 15,355      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 400      
Carrying Amount of Buildings and Improvements 15,355      
Accumulated Depreciation 1,854      
Triple-net | Windsor, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,148      
Initial Cost of Buildings & Improvements 6,514      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,148      
Carrying Amount of Buildings and Improvements 6,514      
Accumulated Depreciation 443      
Triple-net | Winston-Salem, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 360      
Initial Cost of Buildings & Improvements 2,514      
Cost Capitalized Subsequent to Acquisition 459      
Carrying Amount of Land 360      
Carrying Amount of Buildings and Improvements 2,973      
Accumulated Depreciation 1,268      
Triple-net | Winter Garden, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,110      
Initial Cost of Buildings & Improvements 7,937      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,110      
Carrying Amount of Buildings and Improvements 7,937      
Accumulated Depreciation 1,382      
Triple-net | Winter Springs, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,152      
Initial Cost of Buildings & Improvements 14,826      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,152      
Carrying Amount of Buildings and Improvements 14,826      
Accumulated Depreciation 173      
Triple-net | Witherwack, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 944      
Initial Cost of Buildings & Improvements 6,915      
Cost Capitalized Subsequent to Acquisition 266      
Carrying Amount of Land 976      
Carrying Amount of Buildings and Improvements 7,149      
Accumulated Depreciation 1,027      
Triple-net | Wolverhampton, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,573      
Initial Cost of Buildings & Improvements 6,678      
Cost Capitalized Subsequent to Acquisition 279      
Carrying Amount of Land 1,626      
Carrying Amount of Buildings and Improvements 6,904      
Accumulated Depreciation 1,000      
Triple-net | Woodbury, MN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,317      
Initial Cost of Buildings & Improvements 20,935      
Cost Capitalized Subsequent to Acquisition 298      
Carrying Amount of Land 1,317      
Carrying Amount of Buildings and Improvements 21,233      
Accumulated Depreciation 1,057      
Triple-net | Woodstock, VA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 594      
Initial Cost of Buildings & Improvements 5,108      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 594      
Carrying Amount of Buildings and Improvements 5,108      
Accumulated Depreciation 338      
Triple-net | Worcester, MA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 3,500      
Initial Cost of Buildings & Improvements 54,099      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,500      
Carrying Amount of Buildings and Improvements 54,099      
Accumulated Depreciation 13,035      
Triple-net | Worcester, MA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,300      
Initial Cost of Buildings & Improvements 9,060      
Cost Capitalized Subsequent to Acquisition 6,000      
Carrying Amount of Land 2,300      
Carrying Amount of Buildings and Improvements 15,060      
Accumulated Depreciation 4,007      
Triple-net | Yardley, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 773      
Initial Cost of Buildings & Improvements 14,918      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 773      
Carrying Amount of Buildings and Improvements 14,918      
Accumulated Depreciation 184      
Triple-net | Yardley, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,561      
Initial Cost of Buildings & Improvements 9,442      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,561      
Carrying Amount of Buildings and Improvements 9,442      
Accumulated Depreciation 139      
Triple-net | Yeadon, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,075      
Initial Cost of Buildings & Improvements 10,694      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,075      
Carrying Amount of Buildings and Improvements 10,694      
Accumulated Depreciation 121      
Triple-net | York, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 976      
Initial Cost of Buildings & Improvements 9,357      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 976      
Carrying Amount of Buildings and Improvements 9,357      
Accumulated Depreciation 112      
Triple-net | York, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,050      
Initial Cost of Buildings & Improvements 4,212      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,050      
Carrying Amount of Buildings and Improvements 4,212      
Accumulated Depreciation 60      
Triple-net | York, PA        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,121      
Initial Cost of Buildings & Improvements 7,586      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,121      
Carrying Amount of Buildings and Improvements 7,586      
Accumulated Depreciation 97      
Triple-net | York, UK        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,961      
Initial Cost of Buildings & Improvements 8,266      
Cost Capitalized Subsequent to Acquisition 379      
Carrying Amount of Land 3,061      
Carrying Amount of Buildings and Improvements 8,545      
Accumulated Depreciation 946      
Triple-net | Youngsville, NC        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 380      
Initial Cost of Buildings & Improvements 10,689      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 380      
Carrying Amount of Buildings and Improvements 10,689      
Accumulated Depreciation 1,256      
Triple-net | Zephyrhills, FL        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 2,131      
Initial Cost of Buildings & Improvements 6,671      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,131      
Carrying Amount of Buildings and Improvements 6,671      
Accumulated Depreciation 90      
Triple-net | Zionsville, IN        
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 1,610      
Initial Cost of Buildings & Improvements 22,400      
Cost Capitalized Subsequent to Acquisition 1,686      
Carrying Amount of Land 1,610      
Carrying Amount of Buildings and Improvements 24,086      
Accumulated Depreciation $ 5,158