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Real Estate and Accumulated Depreciation (Schedule III Real Estate and Accumulated Depreciation, Outpatient Medical) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 2,616,125      
Initial Cost of Land 2,653,655      
Initial Cost of Buildings & Improvements 26,257,700      
Cost Capitalized Subsequent to Acquisition 1,956,105      
Carrying Amount of Land 2,734,467      
Carrying Amount of Buildings and Improvements 27,847,481      
Accumulated Depreciation 4,838,370 $ 4,093,494 $ 3,796,297 $ 3,020,908
Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 218,382      
Initial Cost of Land 574,346      
Initial Cost of Buildings & Improvements 4,724,190      
Cost Capitalized Subsequent to Acquisition 315,225      
Carrying Amount of Land 639,696      
Carrying Amount of Buildings and Improvements 4,974,067      
Accumulated Depreciation [1] 1,096,012      
Outpatient Medical [Member] | Akron, OH, 31350101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances 0      
Initial Cost of Land 821      
Initial Cost of Buildings & Improvements 12,105      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 821      
Carrying Amount of Buildings and Improvements 12,105      
Accumulated Depreciation $ 2,528      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2010      
Outpatient Medical [Member] | Allen, TX, 31312101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 726      
Initial Cost of Buildings & Improvements 14,196      
Cost Capitalized Subsequent to Acquisition 798      
Carrying Amount of Land 726      
Carrying Amount of Buildings and Improvements 14,994      
Accumulated Depreciation $ 4,117      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | Alpharetta, GA, 30100133 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 476      
Initial Cost of Buildings & Improvements 14,757      
Cost Capitalized Subsequent to Acquisition 323      
Carrying Amount of Land 476      
Carrying Amount of Buildings and Improvements 15,081      
Accumulated Depreciation $ 4,456      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2003      
Outpatient Medical [Member] | Alpharetta, GA, 30100136 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,862      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,862      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation $ 0      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1900      
Outpatient Medical [Member] | Alpharetta, GA, 30100137 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 548      
Initial Cost of Buildings & Improvements 17,103      
Cost Capitalized Subsequent to Acquisition 440      
Carrying Amount of Land 548      
Carrying Amount of Buildings and Improvements 17,543      
Accumulated Depreciation $ 5,809      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Alpharetta, GA, 31321101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 773      
Initial Cost of Buildings & Improvements 18,902      
Cost Capitalized Subsequent to Acquisition 1,259      
Carrying Amount of Land 773      
Carrying Amount of Buildings and Improvements 20,161      
Accumulated Depreciation $ 5,652      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1993      
Outpatient Medical [Member] | Alpharetta, GA, 31321102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,769      
Initial Cost of Buildings & Improvements 36,152      
Cost Capitalized Subsequent to Acquisition 784      
Carrying Amount of Land 1,769      
Carrying Amount of Buildings and Improvements 36,936      
Accumulated Depreciation $ 11,834      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1999      
Outpatient Medical [Member] | Anderson, IN, 30100206 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,193      
Initial Cost of Buildings & Improvements 20,644      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,193      
Carrying Amount of Buildings and Improvements 20,644      
Accumulated Depreciation $ 562      
Year Acquired Jan. 01, 2017      
Year Built Jan. 01, 2016      
Outpatient Medical [Member] | Arcadia, CA, 31157101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 5,408      
Initial Cost of Buildings & Improvements 23,219      
Cost Capitalized Subsequent to Acquisition 4,058      
Carrying Amount of Land 5,618      
Carrying Amount of Buildings and Improvements 27,067      
Accumulated Depreciation $ 9,859      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1984      
Outpatient Medical [Member] | Arlington, TX, 30100148 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 82      
Initial Cost of Buildings & Improvements 18,243      
Cost Capitalized Subsequent to Acquisition 374      
Carrying Amount of Land 82      
Carrying Amount of Buildings and Improvements 18,617      
Accumulated Depreciation $ 2,796      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2012      
Outpatient Medical [Member] | Atlanta, GA, 31108101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 4,931      
Initial Cost of Buildings & Improvements 18,720      
Cost Capitalized Subsequent to Acquisition 6,731      
Carrying Amount of Land 5,387      
Carrying Amount of Buildings and Improvements 24,996      
Accumulated Depreciation $ 10,420      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1991      
Outpatient Medical [Member] | Atlanta, GA, 31327101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,947      
Initial Cost of Buildings & Improvements 24,248      
Cost Capitalized Subsequent to Acquisition 1,681      
Carrying Amount of Land 2,030      
Carrying Amount of Buildings and Improvements 25,845      
Accumulated Depreciation $ 6,803      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 1984      
Outpatient Medical [Member] | Atlanta, GA, 31329101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 43,425      
Cost Capitalized Subsequent to Acquisition 1,098      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 44,523      
Accumulated Depreciation $ 11,603      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | Austin, TX, 30100211 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,066      
Initial Cost of Buildings & Improvements 10,112      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,066      
Carrying Amount of Buildings and Improvements 10,112      
Accumulated Depreciation $ 71      
Year Acquired Jan. 01, 2017      
Year Built Jan. 01, 2017      
Outpatient Medical [Member] | Bardstown, KY, 31463101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 273      
Initial Cost of Buildings & Improvements 7,966      
Cost Capitalized Subsequent to Acquisition 42      
Carrying Amount of Land 274      
Carrying Amount of Buildings and Improvements 8,007      
Accumulated Depreciation $ 984      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | Bartlett, TN, 31172101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 187      
Initial Cost of Buildings & Improvements 15,015      
Cost Capitalized Subsequent to Acquisition 2,042      
Carrying Amount of Land 187      
Carrying Amount of Buildings and Improvements 17,057      
Accumulated Depreciation $ 6,305      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Bel Air, MD, 31426101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 24,769      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 24,769      
Accumulated Depreciation $ 1,069      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2016      
Outpatient Medical [Member] | Bellevue, NE, 31227101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 16,680      
Cost Capitalized Subsequent to Acquisition 2      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 16,682      
Accumulated Depreciation $ 4,658      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2010      
Outpatient Medical [Member] | Bettendorf, IA, 31394101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 7,110      
Cost Capitalized Subsequent to Acquisition 73      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 7,183      
Accumulated Depreciation $ 569      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Beverly Hills, CA, 31442101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 20,766      
Initial Cost of Buildings & Improvements 40,730      
Cost Capitalized Subsequent to Acquisition 1,871      
Carrying Amount of Land 20,766      
Carrying Amount of Buildings and Improvements 42,601      
Accumulated Depreciation $ 4,352      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 1946      
Outpatient Medical [Member] | Beverly Hills, CA, 31443101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 18,863      
Initial Cost of Buildings & Improvements 1,192      
Cost Capitalized Subsequent to Acquisition 187      
Carrying Amount of Land 18,863      
Carrying Amount of Buildings and Improvements 1,379      
Accumulated Depreciation $ 513      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 1955      
Outpatient Medical [Member] | Beverly Hills, CA, 31444101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 19,863      
Initial Cost of Buildings & Improvements 31,690      
Cost Capitalized Subsequent to Acquisition 315      
Carrying Amount of Land 19,863      
Carrying Amount of Buildings and Improvements 32,005      
Accumulated Depreciation $ 3,514      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 1946      
Outpatient Medical [Member] | Beverly Hills, CA, 31445101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 33,729      
Initial Cost of Land 32,603      
Initial Cost of Buildings & Improvements 28,639      
Cost Capitalized Subsequent to Acquisition 493      
Carrying Amount of Land 32,603      
Carrying Amount of Buildings and Improvements 29,132      
Accumulated Depreciation $ 4,117      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 1950      
Outpatient Medical [Member] | Beverly Hills, CA, 31446101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 78,271      
Initial Cost of Land 52,772      
Initial Cost of Buildings & Improvements 87,366      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 52,772      
Carrying Amount of Buildings and Improvements 87,366      
Accumulated Depreciation $ 8,731      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 1989      
Outpatient Medical [Member] | Birmingham, AL, 31165101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 52      
Initial Cost of Buildings & Improvements 10,201      
Cost Capitalized Subsequent to Acquisition 626      
Carrying Amount of Land 52      
Carrying Amount of Buildings and Improvements 10,827      
Accumulated Depreciation $ 3,863      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1971      
Outpatient Medical [Member] | Birmingham, AL, 31165102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 124      
Initial Cost of Buildings & Improvements 11,733      
Cost Capitalized Subsequent to Acquisition 1,949      
Carrying Amount of Land 124      
Carrying Amount of Buildings and Improvements 13,682      
Accumulated Depreciation $ 4,512      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1985      
Outpatient Medical [Member] | Birmingham, AL, 31165103 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 476      
Initial Cost of Buildings & Improvements 18,726      
Cost Capitalized Subsequent to Acquisition 2,006      
Carrying Amount of Land 476      
Carrying Amount of Buildings and Improvements 20,731      
Accumulated Depreciation $ 7,398      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1989      
Outpatient Medical [Member] | Boardman, OH, 31274101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 80      
Initial Cost of Buildings & Improvements 12,161      
Cost Capitalized Subsequent to Acquisition 10      
Carrying Amount of Land 80      
Carrying Amount of Buildings and Improvements 12,170      
Accumulated Depreciation $ 4,225      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Boca Raton, FL, 30100132 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 31      
Initial Cost of Buildings & Improvements 12,312      
Cost Capitalized Subsequent to Acquisition 430      
Carrying Amount of Land 59      
Carrying Amount of Buildings and Improvements 12,714      
Accumulated Depreciation $ 3,103      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 1993      
Outpatient Medical [Member] | Boca Raton, FL, 31158101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 109      
Initial Cost of Buildings & Improvements 34,002      
Cost Capitalized Subsequent to Acquisition 3,261      
Carrying Amount of Land 214      
Carrying Amount of Buildings and Improvements 37,158      
Accumulated Depreciation $ 13,169      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1995      
Outpatient Medical [Member] | Boerne, TX, 30100128 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 50      
Initial Cost of Buildings & Improvements 12,951      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 50      
Carrying Amount of Buildings and Improvements 12,951      
Accumulated Depreciation $ 3,100      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Boynton Beach, FL, 31145101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,048      
Initial Cost of Buildings & Improvements 7,692      
Cost Capitalized Subsequent to Acquisition 984      
Carrying Amount of Land 2,185      
Carrying Amount of Buildings and Improvements 8,539      
Accumulated Depreciation $ 3,507      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1995      
Outpatient Medical [Member] | Boynton Beach, FL, 31153101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,048      
Initial Cost of Buildings & Improvements 7,403      
Cost Capitalized Subsequent to Acquisition 1,576      
Carrying Amount of Land 2,185      
Carrying Amount of Buildings and Improvements 8,841      
Accumulated Depreciation $ 3,640      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1997      
Outpatient Medical [Member] | Boynton Beach, FL, 31185101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 214      
Initial Cost of Buildings & Improvements 5,611      
Cost Capitalized Subsequent to Acquisition 8,340      
Carrying Amount of Land 270      
Carrying Amount of Buildings and Improvements 13,895      
Accumulated Depreciation $ 5,191      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 1996      
Outpatient Medical [Member] | Boynton Beach, FL, 31380101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 13,324      
Initial Cost of Buildings & Improvements 40,369      
Cost Capitalized Subsequent to Acquisition 2,681      
Carrying Amount of Land 14,030      
Carrying Amount of Buildings and Improvements 42,344      
Accumulated Depreciation $ 9,445      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 1995      
Outpatient Medical [Member] | Bradenton, FL, 30100155 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,184      
Initial Cost of Buildings & Improvements 9,799      
Cost Capitalized Subsequent to Acquisition 417      
Carrying Amount of Land 1,184      
Carrying Amount of Buildings and Improvements 10,216      
Accumulated Depreciation $ 1,454      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 1975      
Outpatient Medical [Member] | Bradenton, FL, 30100156 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,035      
Initial Cost of Buildings & Improvements 4,298      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,035      
Carrying Amount of Buildings and Improvements 4,298      
Accumulated Depreciation $ 694      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | Bridgeton, MO, 30100207 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,701      
Initial Cost of Buildings & Improvements 6,228      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,701      
Carrying Amount of Buildings and Improvements 6,228      
Accumulated Depreciation $ 296      
Year Acquired Jan. 01, 2017      
Year Built Jan. 01, 2008      
Outpatient Medical [Member] | Bridgeton, MO, 31272101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 450      
Initial Cost of Buildings & Improvements 21,221      
Cost Capitalized Subsequent to Acquisition 188      
Carrying Amount of Land 450      
Carrying Amount of Buildings and Improvements 21,409      
Accumulated Depreciation $ 6,149      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | Buckhurst Hill, UKH, 38862104 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 12,717      
Initial Cost of Buildings & Improvements 54,001      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 12,717      
Carrying Amount of Buildings and Improvements 54,001      
Accumulated Depreciation $ 3,832      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Burleson, TX, 31299101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 10      
Initial Cost of Buildings & Improvements 12,611      
Cost Capitalized Subsequent to Acquisition 698      
Carrying Amount of Land 10      
Carrying Amount of Buildings and Improvements 13,309      
Accumulated Depreciation $ 3,599      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Burnsville, MN, 31379101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 31,596      
Cost Capitalized Subsequent to Acquisition 568      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 32,164      
Accumulated Depreciation $ 6,446      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Carmel, IN, 31291101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,280      
Initial Cost of Buildings & Improvements 19,238      
Cost Capitalized Subsequent to Acquisition 649      
Carrying Amount of Land 2,280      
Carrying Amount of Buildings and Improvements 19,886      
Accumulated Depreciation $ 6,935      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2005      
Outpatient Medical [Member] | Carmel, IN, 31292101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,026      
Initial Cost of Buildings & Improvements 21,559      
Cost Capitalized Subsequent to Acquisition 26      
Carrying Amount of Land 2,026      
Carrying Amount of Buildings and Improvements 21,586      
Accumulated Depreciation $ 7,913      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Castle Rock, CO, 31382101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 80      
Initial Cost of Buildings & Improvements 13,004      
Cost Capitalized Subsequent to Acquisition 571      
Carrying Amount of Land 79      
Carrying Amount of Buildings and Improvements 13,576      
Accumulated Depreciation $ 2,347      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Castle Rock, CO, 31484101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 11,795      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 11,795      
Accumulated Depreciation $ 217      
Year Acquired Jan. 01, 2016      
Year Built Jan. 01, 2017      
Outpatient Medical [Member] | Cedar Park, TX, 30100205 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 132      
Initial Cost of Buildings & Improvements 20,701      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 132      
Carrying Amount of Buildings and Improvements 20,701      
Accumulated Depreciation $ 910      
Year Acquired Jan. 01, 2017      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Charleston, SC, 30100157 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,773      
Initial Cost of Buildings & Improvements 25,928      
Cost Capitalized Subsequent to Acquisition 94      
Carrying Amount of Land 2,815      
Carrying Amount of Buildings and Improvements 25,980      
Accumulated Depreciation $ 3,950      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Cincinnati, OH, 31357101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 17,880      
Cost Capitalized Subsequent to Acquisition 203      
Carrying Amount of Land 2      
Carrying Amount of Buildings and Improvements 18,080      
Accumulated Depreciation $ 2,853      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Claremore, OK, 31173101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 132      
Initial Cost of Buildings & Improvements 11,173      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 132      
Carrying Amount of Buildings and Improvements 11,173      
Accumulated Depreciation $ 3,009      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2005      
Outpatient Medical [Member] | Clarkson Valley, MO, 31219101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 35,592      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 35,592      
Accumulated Depreciation $ 11,095      
Year Acquired Jan. 01, 2009      
Year Built Jan. 01, 2010      
Outpatient Medical [Member] | Clear Lake, TX, 30100149 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 13,882      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 13,882      
Accumulated Depreciation $ 1,157      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Columbia, MD, 30100146 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,333      
Initial Cost of Buildings & Improvements 19,232      
Cost Capitalized Subsequent to Acquisition 867      
Carrying Amount of Land 2,333      
Carrying Amount of Buildings and Improvements 20,098      
Accumulated Depreciation $ 4,106      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2002      
Outpatient Medical [Member] | Columbia, MD, 30100186 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 23      
Initial Cost of Buildings & Improvements 33,885      
Cost Capitalized Subsequent to Acquisition 1,417      
Carrying Amount of Land 9,353      
Carrying Amount of Buildings and Improvements 25,972      
Accumulated Depreciation $ 4,616      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 1982      
Outpatient Medical [Member] | Coon Rapids, MN, 31371101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 26,679      
Cost Capitalized Subsequent to Acquisition 1,119      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 27,798      
Accumulated Depreciation $ 4,240      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Costa Mesa, CA, 31489101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 22,748      
Initial Cost of Land 22,033      
Initial Cost of Buildings & Improvements 24,332      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 22,033      
Carrying Amount of Buildings and Improvements 24,332      
Accumulated Depreciation $ 1,376      
Year Acquired Jan. 01, 2017      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Cypress, TX, 30100200 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,287      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,287      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation $ 0      
Year Acquired Jan. 01, 2016      
Year Built Jan. 01, 1900      
Outpatient Medical [Member] | Cypress, TX, 30100203 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,985      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,985      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation $ 0      
Year Acquired Jan. 01, 2016      
Year Built Jan. 01, 1900      
Outpatient Medical [Member] | Dade City, FL, 30100126 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,211      
Initial Cost of Buildings & Improvements 5,511      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,211      
Carrying Amount of Buildings and Improvements 5,511      
Accumulated Depreciation $ 1,277      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1998      
Outpatient Medical [Member] | Dallas, TX, 30100183 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 122      
Initial Cost of Buildings & Improvements 15,419      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 122      
Carrying Amount of Buildings and Improvements 15,419      
Accumulated Depreciation $ 1,051      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Dallas, TX, 31150101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 137      
Initial Cost of Buildings & Improvements 28,690      
Cost Capitalized Subsequent to Acquisition 3,624      
Carrying Amount of Land 137      
Carrying Amount of Buildings and Improvements 32,315      
Accumulated Depreciation $ 12,204      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1995      
Outpatient Medical [Member] | Dallas, TX, 31313101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 462      
Initial Cost of Buildings & Improvements 52,488      
Cost Capitalized Subsequent to Acquisition 225      
Carrying Amount of Land 462      
Carrying Amount of Buildings and Improvements 52,714      
Accumulated Depreciation $ 9,869      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Dayton, OH, 31290101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 730      
Initial Cost of Buildings & Improvements 6,919      
Cost Capitalized Subsequent to Acquisition 362      
Carrying Amount of Land 730      
Carrying Amount of Buildings and Improvements 7,281      
Accumulated Depreciation $ 2,591      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1988      
Outpatient Medical [Member] | Deerfield Beach, FL, 31298101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,408      
Initial Cost of Buildings & Improvements 7,809      
Cost Capitalized Subsequent to Acquisition 417      
Carrying Amount of Land 2,540      
Carrying Amount of Buildings and Improvements 8,094      
Accumulated Depreciation $ 3,104      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2001      
Outpatient Medical [Member] | Delray Beach, FL, 31133101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,882      
Initial Cost of Buildings & Improvements 34,767      
Cost Capitalized Subsequent to Acquisition 6,895      
Carrying Amount of Land 2,449      
Carrying Amount of Buildings and Improvements 41,094      
Accumulated Depreciation $ 17,406      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1985      
Outpatient Medical [Member] | Durham, NC, 30100152 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,212      
Initial Cost of Buildings & Improvements 22,858      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 1,212      
Carrying Amount of Buildings and Improvements 22,859      
Accumulated Depreciation $ 3,166      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2012      
Outpatient Medical [Member] | Edina, MN, 31265101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 310      
Initial Cost of Buildings & Improvements 15,132      
Cost Capitalized Subsequent to Acquisition 945      
Carrying Amount of Land 310      
Carrying Amount of Buildings and Improvements 16,077      
Accumulated Depreciation $ 4,346      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2003      
Outpatient Medical [Member] | El Paso, TX, 31148101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 677      
Initial Cost of Buildings & Improvements 17,075      
Cost Capitalized Subsequent to Acquisition 2,249      
Carrying Amount of Land 677      
Carrying Amount of Buildings and Improvements 19,324      
Accumulated Depreciation $ 8,236      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1997      
Outpatient Medical [Member] | Everett, WA, 31248101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 4,842      
Initial Cost of Buildings & Improvements 26,010      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,842      
Carrying Amount of Buildings and Improvements 26,010      
Accumulated Depreciation $ 6,630      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2011      
Outpatient Medical [Member] | Fenton, MO, 31387101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 10,919      
Initial Cost of Land 958      
Initial Cost of Buildings & Improvements 27,485      
Cost Capitalized Subsequent to Acquisition 714      
Carrying Amount of Land 958      
Carrying Amount of Buildings and Improvements 28,199      
Accumulated Depreciation $ 6,192      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Fenton, MO, 31389101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 369      
Initial Cost of Buildings & Improvements 13,911      
Cost Capitalized Subsequent to Acquisition 104      
Carrying Amount of Land 369      
Carrying Amount of Buildings and Improvements 14,016      
Accumulated Depreciation $ 2,226      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Florham Park, NJ, 30100213 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 8,578      
Initial Cost of Buildings & Improvements 61,779      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 8,578      
Carrying Amount of Buildings and Improvements 61,779      
Accumulated Depreciation $ 0      
Year Acquired Jan. 01, 2017      
Year Built Jan. 01, 2017      
Outpatient Medical [Member] | Flower Mound, TX, 30100164 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 737      
Initial Cost of Buildings & Improvements 9,277      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 737      
Carrying Amount of Buildings and Improvements 9,277      
Accumulated Depreciation $ 1,075      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Flower Mound, TX, 30100165 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 4,164      
Initial Cost of Buildings & Improvements 27,027      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,164      
Carrying Amount of Buildings and Improvements 27,027      
Accumulated Depreciation $ 3,751      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2012      
Outpatient Medical [Member] | Flower Mound, TX, 30100166 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 4,620      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,620      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation $ 0      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 1900      
Outpatient Medical [Member] | Fort Wayne, IN, 31340101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,105      
Initial Cost of Buildings & Improvements 22,836      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,105      
Carrying Amount of Buildings and Improvements 22,836      
Accumulated Depreciation $ 4,515      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Fort Worth, TX, 30100147 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 462      
Initial Cost of Buildings & Improvements 26,020      
Cost Capitalized Subsequent to Acquisition 358      
Carrying Amount of Land 462      
Carrying Amount of Buildings and Improvements 26,378      
Accumulated Depreciation $ 4,027      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2012      
Outpatient Medical [Member] | Fort Worth, TX, 30100163 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 401      
Initial Cost of Buildings & Improvements 6,099      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 401      
Carrying Amount of Buildings and Improvements 6,099      
Accumulated Depreciation $ 933      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Franklin, TN, 31189101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,338      
Initial Cost of Buildings & Improvements 12,138      
Cost Capitalized Subsequent to Acquisition 2,560      
Carrying Amount of Land 2,338      
Carrying Amount of Buildings and Improvements 14,699      
Accumulated Depreciation $ 5,518      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 1988      
Outpatient Medical [Member] | Frisco, TX, 31176101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 18,635      
Cost Capitalized Subsequent to Acquisition 1,476      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 20,111      
Accumulated Depreciation $ 7,141      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Frisco, TX, 31177101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 15,309      
Cost Capitalized Subsequent to Acquisition 2,537      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 17,846      
Accumulated Depreciation $ 6,838      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Fullerton, CA, 31494101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 5,477      
Initial Cost of Buildings & Improvements 53,890      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 5,477      
Carrying Amount of Buildings and Improvements 53,890      
Accumulated Depreciation $ 1,929      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Gallatin, TN, 31259101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 20      
Initial Cost of Buildings & Improvements 21,801      
Cost Capitalized Subsequent to Acquisition 1,729      
Carrying Amount of Land 44      
Carrying Amount of Buildings and Improvements 23,506      
Accumulated Depreciation $ 6,998      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 1997      
Outpatient Medical [Member] | Gig Harbor, WA, 31464101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 80      
Initial Cost of Buildings & Improvements 30,810      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 80      
Carrying Amount of Buildings and Improvements 30,810      
Accumulated Depreciation $ 2,712      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Glendale, CA, 31178101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 37      
Initial Cost of Buildings & Improvements 18,398      
Cost Capitalized Subsequent to Acquisition 1,455      
Carrying Amount of Land 37      
Carrying Amount of Buildings and Improvements 19,853      
Accumulated Depreciation $ 6,341      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2002      
Outpatient Medical [Member] | Grand Prairie, TX, 30100140 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 981      
Initial Cost of Buildings & Improvements 6,086      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 981      
Carrying Amount of Buildings and Improvements 6,086      
Accumulated Depreciation $ 1,793      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Grapevine, TX, 31409101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 5,943      
Cost Capitalized Subsequent to Acquisition 4,778      
Carrying Amount of Land 2,081      
Carrying Amount of Buildings and Improvements 8,640      
Accumulated Depreciation $ 1,203      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2002      
Outpatient Medical [Member] | Grapevine, TX, 31435101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,365      
Initial Cost of Buildings & Improvements 15,669      
Cost Capitalized Subsequent to Acquisition 30      
Carrying Amount of Land 3,365      
Carrying Amount of Buildings and Improvements 15,699      
Accumulated Depreciation $ 3,256      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2002      
Outpatient Medical [Member] | Greeneville, TN, 31269101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 970      
Initial Cost of Buildings & Improvements 10,104      
Cost Capitalized Subsequent to Acquisition 73      
Carrying Amount of Land 970      
Carrying Amount of Buildings and Improvements 10,178      
Accumulated Depreciation $ 3,387      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2005      
Outpatient Medical [Member] | Greenwood, IN, 30100141 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 8,316      
Initial Cost of Buildings & Improvements 26,384      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 8,316      
Carrying Amount of Buildings and Improvements 26,384      
Accumulated Depreciation $ 5,821      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2010      
Outpatient Medical [Member] | Greenwood, IN, 30100160 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,098      
Initial Cost of Buildings & Improvements 21,538      
Cost Capitalized Subsequent to Acquisition 638      
Carrying Amount of Land 2,098      
Carrying Amount of Buildings and Improvements 22,176      
Accumulated Depreciation $ 2,579      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Greenwood, IN, 30100161 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,262      
Initial Cost of Buildings & Improvements 7,045      
Cost Capitalized Subsequent to Acquisition 8      
Carrying Amount of Land 1,262      
Carrying Amount of Buildings and Improvements 7,053      
Accumulated Depreciation $ 1,226      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2010      
Outpatient Medical [Member] | High Point, NC, 10130144 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,659      
Initial Cost of Buildings & Improvements 29,069      
Cost Capitalized Subsequent to Acquisition 122      
Carrying Amount of Land 2,659      
Carrying Amount of Buildings and Improvements 29,191      
Accumulated Depreciation $ 5,515      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2010      
Outpatient Medical [Member] | Highland, IL, 31347101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 8,834      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 8,834      
Accumulated Depreciation $ 1,298      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Houston, TX, 30100135 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 10,403      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 10,403      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation $ 5      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1900      
Outpatient Medical [Member] | Houston, TX, 30100139 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 5,837      
Initial Cost of Buildings & Improvements 33,128      
Cost Capitalized Subsequent to Acquisition 150      
Carrying Amount of Land 5,837      
Carrying Amount of Buildings and Improvements 33,278      
Accumulated Depreciation $ 9,728      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2005      
Outpatient Medical [Member] | Houston, TX, 30100153 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,102      
Initial Cost of Buildings & Improvements 32,323      
Cost Capitalized Subsequent to Acquisition 2,497      
Carrying Amount of Land 3,242      
Carrying Amount of Buildings and Improvements 34,680      
Accumulated Depreciation $ 5,775      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Houston, TX, 31341102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,688      
Initial Cost of Buildings & Improvements 13,313      
Cost Capitalized Subsequent to Acquisition 116      
Carrying Amount of Land 3,688      
Carrying Amount of Buildings and Improvements 13,430      
Accumulated Depreciation $ 2,910      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Houston, TX, 31341103 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,099      
Initial Cost of Buildings & Improvements 1,604      
Cost Capitalized Subsequent to Acquisition 78,408      
Carrying Amount of Land 12,815      
Carrying Amount of Buildings and Improvements 68,296      
Accumulated Depreciation $ 11,702      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 1998      
Outpatient Medical [Member] | Howell, MI, 31487101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,000      
Initial Cost of Buildings & Improvements 13,928      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,000      
Carrying Amount of Buildings and Improvements 13,928      
Accumulated Depreciation $ 158      
Year Acquired Jan. 01, 2016      
Year Built Jan. 01, 2017      
Outpatient Medical [Member] | Hudson, OH, 31356101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,587      
Initial Cost of Buildings & Improvements 13,720      
Cost Capitalized Subsequent to Acquisition 672      
Carrying Amount of Land 2,868      
Carrying Amount of Buildings and Improvements 14,111      
Accumulated Depreciation $ 4,157      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | Humble, TX, 30100150 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 9,941      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 9,941      
Accumulated Depreciation $ 787      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Jackson, MI, 31390101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 607      
Initial Cost of Buildings & Improvements 17,367      
Cost Capitalized Subsequent to Acquisition 123      
Carrying Amount of Land 668      
Carrying Amount of Buildings and Improvements 17,429      
Accumulated Depreciation $ 3,709      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Jupiter, FL, 31151101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,252      
Initial Cost of Buildings & Improvements 11,415      
Cost Capitalized Subsequent to Acquisition 3,397      
Carrying Amount of Land 2,608      
Carrying Amount of Buildings and Improvements 14,456      
Accumulated Depreciation $ 4,941      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 2001      
Outpatient Medical [Member] | Jupiter, FL, 31186101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,825      
Initial Cost of Buildings & Improvements 5,858      
Cost Capitalized Subsequent to Acquisition 863      
Carrying Amount of Land 3,005      
Carrying Amount of Buildings and Improvements 6,540      
Accumulated Depreciation $ 2,807      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Killeen, TX, 31268101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 760      
Initial Cost of Buildings & Improvements 22,878      
Cost Capitalized Subsequent to Acquisition 127      
Carrying Amount of Land 795      
Carrying Amount of Buildings and Improvements 22,970      
Accumulated Depreciation $ 7,008      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2010      
Outpatient Medical [Member] | Killeen, TX, 31335101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,907      
Initial Cost of Buildings & Improvements 3,575      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,907      
Carrying Amount of Buildings and Improvements 3,575      
Accumulated Depreciation $ 477      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2012      
Outpatient Medical [Member] | Kyle, TX, 30100158 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,569      
Initial Cost of Buildings & Improvements 14,384      
Cost Capitalized Subsequent to Acquisition 466      
Carrying Amount of Land 2,569      
Carrying Amount of Buildings and Improvements 14,850      
Accumulated Depreciation $ 2,321      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2011      
Outpatient Medical [Member] | La Jolla, CA, 31449101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 12,855      
Initial Cost of Buildings & Improvements 32,658      
Cost Capitalized Subsequent to Acquisition 168      
Carrying Amount of Land 12,855      
Carrying Amount of Buildings and Improvements 32,826      
Accumulated Depreciation $ 4,500      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 1989      
Outpatient Medical [Member] | La Jolla, CA, 31450101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 9,425      
Initial Cost of Buildings & Improvements 26,525      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 9,425      
Carrying Amount of Buildings and Improvements 26,525      
Accumulated Depreciation $ 2,814      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 1988      
Outpatient Medical [Member] | La Quinta, CA, 30100162 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,266      
Initial Cost of Buildings & Improvements 22,066      
Cost Capitalized Subsequent to Acquisition 194      
Carrying Amount of Land 3,279      
Carrying Amount of Buildings and Improvements 22,247      
Accumulated Depreciation $ 3,785      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | Lake St Louis, MO, 31266101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 240      
Initial Cost of Buildings & Improvements 14,249      
Cost Capitalized Subsequent to Acquisition 192      
Carrying Amount of Land 240      
Carrying Amount of Buildings and Improvements 14,441      
Accumulated Depreciation $ 4,499      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2008      
Outpatient Medical [Member] | Lakeway, TX, 31215101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,801      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,801      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation $ 0      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 1900      
Outpatient Medical [Member] | Lakewood, CA, 31131101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 146      
Initial Cost of Buildings & Improvements 14,885      
Cost Capitalized Subsequent to Acquisition 2,291      
Carrying Amount of Land 146      
Carrying Amount of Buildings and Improvements 17,176      
Accumulated Depreciation $ 5,902      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1993      
Outpatient Medical [Member] | Lakewood, WA, 31368101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 72      
Initial Cost of Buildings & Improvements 16,017      
Cost Capitalized Subsequent to Acquisition 675      
Carrying Amount of Land 72      
Carrying Amount of Buildings and Improvements 16,693      
Accumulated Depreciation $ 3,256      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2005      
Outpatient Medical [Member] | Land O Lakes, FL, 30100208 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,025      
Initial Cost of Buildings & Improvements 26,249      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,025      
Carrying Amount of Buildings and Improvements 26,249      
Accumulated Depreciation $ 157      
Year Acquired Jan. 01, 2017      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Land O Lakes, FL, 30100209 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,376      
Initial Cost of Buildings & Improvements 6,750      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,376      
Carrying Amount of Buildings and Improvements 6,750      
Accumulated Depreciation $ 45      
Year Acquired Jan. 01, 2017      
Year Built Jan. 01, 2011      
Outpatient Medical [Member] | Las Vegas, NV, 30208101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 6,127      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 6,127      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation $ 0      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 1900      
Outpatient Medical [Member] | Las Vegas, NV, 31104101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,319      
Initial Cost of Buildings & Improvements 4,612      
Cost Capitalized Subsequent to Acquisition 1,039      
Carrying Amount of Land 2,319      
Carrying Amount of Buildings and Improvements 5,651      
Accumulated Depreciation $ 2,478      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1991      
Outpatient Medical [Member] | Las Vegas, NV, 31139101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 74      
Initial Cost of Buildings & Improvements 15,287      
Cost Capitalized Subsequent to Acquisition 1,351      
Carrying Amount of Land 74      
Carrying Amount of Buildings and Improvements 16,638      
Accumulated Depreciation $ 5,930      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 2000      
Outpatient Medical [Member] | Las Vegas, NV, 31179101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 433      
Initial Cost of Buildings & Improvements 6,921      
Cost Capitalized Subsequent to Acquisition 214      
Carrying Amount of Land 433      
Carrying Amount of Buildings and Improvements 7,135      
Accumulated Depreciation $ 3,022      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 1997      
Outpatient Medical [Member] | Lenexa, KS, 31282101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 540      
Initial Cost of Buildings & Improvements 17,926      
Cost Capitalized Subsequent to Acquisition 290      
Carrying Amount of Land 540      
Carrying Amount of Buildings and Improvements 18,216      
Accumulated Depreciation $ 4,676      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2008      
Outpatient Medical [Member] | Lenexa, KS, 31375101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 100      
Initial Cost of Buildings & Improvements 13,767      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 100      
Carrying Amount of Buildings and Improvements 13,767      
Accumulated Depreciation $ 1,353      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Lincoln, NE, 31262101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,420      
Initial Cost of Buildings & Improvements 29,723      
Cost Capitalized Subsequent to Acquisition 422      
Carrying Amount of Land 1,420      
Carrying Amount of Buildings and Improvements 30,145      
Accumulated Depreciation $ 9,862      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2003      
Outpatient Medical [Member] | London, UKI, 38862101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 5,547      
Initial Cost of Buildings & Improvements 12,253      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 5,547      
Carrying Amount of Buildings and Improvements 12,253      
Accumulated Depreciation $ 869      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | London, UKI, 38862102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 19,076      
Initial Cost of Buildings & Improvements 167,391      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 19,076      
Carrying Amount of Buildings and Improvements 167,391      
Accumulated Depreciation $ 11,878      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 2010      
Outpatient Medical [Member] | London, UKI, 38862103 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 4,329      
Initial Cost of Buildings & Improvements 29,815      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,329      
Carrying Amount of Buildings and Improvements 29,815      
Accumulated Depreciation $ 2,116      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 2003      
Outpatient Medical [Member] | Los Alamitos, CA, 31180101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 39      
Initial Cost of Buildings & Improvements 18,635      
Cost Capitalized Subsequent to Acquisition 1,085      
Carrying Amount of Land 39      
Carrying Amount of Buildings and Improvements 19,720      
Accumulated Depreciation $ 6,792      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2003      
Outpatient Medical [Member] | Los Gatos, CA, 31132101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 488      
Initial Cost of Buildings & Improvements 22,386      
Cost Capitalized Subsequent to Acquisition 2,354      
Carrying Amount of Land 488      
Carrying Amount of Buildings and Improvements 24,739      
Accumulated Depreciation $ 10,115      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1993      
Outpatient Medical [Member] | Loxahatchee, FL, 31147101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,637      
Initial Cost of Buildings & Improvements 5,048      
Cost Capitalized Subsequent to Acquisition 1,063      
Carrying Amount of Land 1,719      
Carrying Amount of Buildings and Improvements 6,029      
Accumulated Depreciation $ 2,484      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1997      
Outpatient Medical [Member] | Loxahatchee, FL, 31155101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,340      
Initial Cost of Buildings & Improvements 6,509      
Cost Capitalized Subsequent to Acquisition 1,252      
Carrying Amount of Land 1,440      
Carrying Amount of Buildings and Improvements 7,662      
Accumulated Depreciation $ 2,853      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1993      
Outpatient Medical [Member] | Loxahatchee, FL, 31156101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,553      
Initial Cost of Buildings & Improvements 4,694      
Cost Capitalized Subsequent to Acquisition 1,369      
Carrying Amount of Land 1,650      
Carrying Amount of Buildings and Improvements 5,966      
Accumulated Depreciation $ 2,358      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1994      
Outpatient Medical [Member] | Marietta, GA, 31477101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,682      
Initial Cost of Buildings & Improvements 20,053      
Cost Capitalized Subsequent to Acquisition 1,392      
Carrying Amount of Land 2,682      
Carrying Amount of Buildings and Improvements 21,446      
Accumulated Depreciation $ 1,010      
Year Acquired Jan. 01, 2016      
Year Built Jan. 01, 2016      
Outpatient Medical [Member] | Melbourne, FL, 30100154 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,439      
Initial Cost of Buildings & Improvements 50,461      
Cost Capitalized Subsequent to Acquisition 420      
Carrying Amount of Land 3,538      
Carrying Amount of Buildings and Improvements 50,783      
Accumulated Depreciation $ 7,147      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Menasha, WI, 31441101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,374      
Initial Cost of Buildings & Improvements 13,861      
Cost Capitalized Subsequent to Acquisition 3,074      
Carrying Amount of Land 1,345      
Carrying Amount of Buildings and Improvements 16,964      
Accumulated Depreciation $ 1,364      
Year Acquired Jan. 01, 2016      
Year Built Jan. 01, 1994      
Outpatient Medical [Member] | Merced, CA, 31224101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 13,772      
Cost Capitalized Subsequent to Acquisition 814      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 14,586      
Accumulated Depreciation $ 4,436      
Year Acquired Jan. 01, 2009      
Year Built Jan. 01, 2010      
Outpatient Medical [Member] | Merriam, KS, 31280101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 176      
Initial Cost of Buildings & Improvements 8,005      
Cost Capitalized Subsequent to Acquisition 304      
Carrying Amount of Land 176      
Carrying Amount of Buildings and Improvements 8,309      
Accumulated Depreciation $ 2,898      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1972      
Outpatient Medical [Member] | Merriam, KS, 31280102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 1,996      
Cost Capitalized Subsequent to Acquisition 2,184      
Carrying Amount of Land 81      
Carrying Amount of Buildings and Improvements 4,099      
Accumulated Depreciation $ 1,508      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1980      
Outpatient Medical [Member] | Merriam, KS, 31280103 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 10,222      
Cost Capitalized Subsequent to Acquisition 4,510      
Carrying Amount of Land 444      
Carrying Amount of Buildings and Improvements 14,287      
Accumulated Depreciation $ 4,793      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1977      
Outpatient Medical [Member] | Merriam, KS, 31280104 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 5,862      
Cost Capitalized Subsequent to Acquisition 3,163      
Carrying Amount of Land 182      
Carrying Amount of Buildings and Improvements 8,842      
Accumulated Depreciation $ 2,960      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1985      
Outpatient Medical [Member] | Merriam, KS, 31391101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,257      
Initial Cost of Buildings & Improvements 24,911      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,257      
Carrying Amount of Buildings and Improvements 24,911      
Accumulated Depreciation $ 4,881      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Merrillville, IN, 31199101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 22,134      
Cost Capitalized Subsequent to Acquisition 890      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 23,024      
Accumulated Depreciation $ 6,471      
Year Acquired Jan. 01, 2008      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | Mesa, AZ, 31195101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,558      
Initial Cost of Buildings & Improvements 9,561      
Cost Capitalized Subsequent to Acquisition 739      
Carrying Amount of Land 1,558      
Carrying Amount of Buildings and Improvements 10,300      
Accumulated Depreciation $ 4,396      
Year Acquired Jan. 01, 2008      
Year Built Jan. 01, 1989      
Outpatient Medical [Member] | Mesquite, TX, 30100145 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 496      
Initial Cost of Buildings & Improvements 3,834      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 496      
Carrying Amount of Buildings and Improvements 3,834      
Accumulated Depreciation $ 867      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2012      
Outpatient Medical [Member] | Mission Hills, CA, 31421101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 24,325      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 42,276      
Cost Capitalized Subsequent to Acquisition 5,777      
Carrying Amount of Land 4,791      
Carrying Amount of Buildings and Improvements 43,262      
Accumulated Depreciation $ 6,715      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 1986      
Outpatient Medical [Member] | Missouri City, TX, 30100185 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,360      
Initial Cost of Buildings & Improvements 7,146      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,360      
Carrying Amount of Buildings and Improvements 7,146      
Accumulated Depreciation $ 238      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 2016      
Outpatient Medical [Member] | Moline, IL, 31359101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 8,783      
Cost Capitalized Subsequent to Acquisition 29      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 8,812      
Accumulated Depreciation $ 947      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Monticello, MN, 31367101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 7,526      
Initial Cost of Land 61      
Initial Cost of Buildings & Improvements 18,489      
Cost Capitalized Subsequent to Acquisition 48      
Carrying Amount of Land 61      
Carrying Amount of Buildings and Improvements 18,537      
Accumulated Depreciation $ 3,317      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2008      
Outpatient Medical [Member] | Moorestown, NJ, 31296101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 6      
Initial Cost of Buildings & Improvements 50,896      
Cost Capitalized Subsequent to Acquisition 147      
Carrying Amount of Land 147      
Carrying Amount of Buildings and Improvements 50,902      
Accumulated Depreciation $ 10,435      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2012      
Outpatient Medical [Member] | Morrow, GA, 31192101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 818      
Initial Cost of Buildings & Improvements 8,064      
Cost Capitalized Subsequent to Acquisition 234      
Carrying Amount of Land 845      
Carrying Amount of Buildings and Improvements 8,270      
Accumulated Depreciation $ 4,063      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 1990      
Outpatient Medical [Member] | Mount Juliet, TN, 31194101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,566      
Initial Cost of Buildings & Improvements 11,697      
Cost Capitalized Subsequent to Acquisition 1,434      
Carrying Amount of Land 1,566      
Carrying Amount of Buildings and Improvements 13,131      
Accumulated Depreciation $ 5,153      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2005      
Outpatient Medical [Member] | Mount Vernon, IL, 31288101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 24,892      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 24,892      
Accumulated Depreciation $ 5,282      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2012      
Outpatient Medical [Member] | Murrieta, CA, 30100167 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,800      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,800      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation $ 0      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 1900      
Outpatient Medical [Member] | Murrieta, CA, 31242101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 47,190      
Cost Capitalized Subsequent to Acquisition 46      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 47,236      
Accumulated Depreciation $ 15,692      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2011      
Outpatient Medical [Member] | Nashville, TN, 31106101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,806      
Initial Cost of Buildings & Improvements 7,165      
Cost Capitalized Subsequent to Acquisition 3,234      
Carrying Amount of Land 1,942      
Carrying Amount of Buildings and Improvements 10,263      
Accumulated Depreciation $ 3,951      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1986      
Outpatient Medical [Member] | Nassau Bay, TX, 31316101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 378      
Initial Cost of Buildings & Improvements 31,206      
Cost Capitalized Subsequent to Acquisition 168      
Carrying Amount of Land 378      
Carrying Amount of Buildings and Improvements 31,374      
Accumulated Depreciation $ 7,866      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 1981      
Outpatient Medical [Member] | Nassau Bay, TX, 31316102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 91      
Initial Cost of Buildings & Improvements 10,613      
Cost Capitalized Subsequent to Acquisition 1,282      
Carrying Amount of Land 91      
Carrying Amount of Buildings and Improvements 11,894      
Accumulated Depreciation $ 3,369      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 1986      
Outpatient Medical [Member] | New Albany, IN, 30100159 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,411      
Initial Cost of Buildings & Improvements 16,494      
Cost Capitalized Subsequent to Acquisition 30      
Carrying Amount of Land 2,411      
Carrying Amount of Buildings and Improvements 16,524      
Accumulated Depreciation $ 2,318      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2001      
Outpatient Medical [Member] | Niagara Falls, NY, 31191101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,433      
Initial Cost of Buildings & Improvements 10,891      
Cost Capitalized Subsequent to Acquisition 435      
Carrying Amount of Land 1,721      
Carrying Amount of Buildings and Improvements 11,037      
Accumulated Depreciation $ 5,311      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 1995      
Outpatient Medical [Member] | Niagara Falls, NY, 31191102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 454      
Initial Cost of Buildings & Improvements 8,362      
Cost Capitalized Subsequent to Acquisition 307      
Carrying Amount of Land 454      
Carrying Amount of Buildings and Improvements 8,669      
Accumulated Depreciation $ 2,967      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Oklahoma City, OK, 31369101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 216      
Initial Cost of Buildings & Improvements 19,135      
Cost Capitalized Subsequent to Acquisition 378      
Carrying Amount of Land 216      
Carrying Amount of Buildings and Improvements 19,513      
Accumulated Depreciation $ 4,392      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2008      
Outpatient Medical [Member] | Oro Valley, AZ, 31182101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 89      
Initial Cost of Buildings & Improvements 18,339      
Cost Capitalized Subsequent to Acquisition 969      
Carrying Amount of Land 89      
Carrying Amount of Buildings and Improvements 19,308      
Accumulated Depreciation $ 6,489      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Palmer, AK, 31188101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 217      
Initial Cost of Buildings & Improvements 29,705      
Cost Capitalized Subsequent to Acquisition 1,333      
Carrying Amount of Land 217      
Carrying Amount of Buildings and Improvements 31,038      
Accumulated Depreciation $ 10,170      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | Pasadena, TX, 10104151 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,700      
Initial Cost of Buildings & Improvements 8,009      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,700      
Carrying Amount of Buildings and Improvements 8,009      
Accumulated Depreciation $ 902      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Pearland, TX, 31341105 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,500      
Initial Cost of Buildings & Improvements 11,253      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,500      
Carrying Amount of Buildings and Improvements 11,253      
Accumulated Depreciation $ 1,175      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Pearland, TX, 31429101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 9,594      
Initial Cost of Buildings & Improvements 32,753      
Cost Capitalized Subsequent to Acquisition 191      
Carrying Amount of Land 9,807      
Carrying Amount of Buildings and Improvements 32,731      
Accumulated Depreciation $ 3,801      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Pendleton, OR, 31361101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 10,312      
Cost Capitalized Subsequent to Acquisition 43      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 10,355      
Accumulated Depreciation $ 1,076      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Phoenix, AZ, 31123101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,149      
Initial Cost of Buildings & Improvements 48,018      
Cost Capitalized Subsequent to Acquisition 11,667      
Carrying Amount of Land 1,149      
Carrying Amount of Buildings and Improvements 59,685      
Accumulated Depreciation $ 23,017      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1998      
Outpatient Medical [Member] | Pineville, NC, 31105101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 961      
Initial Cost of Buildings & Improvements 6,974      
Cost Capitalized Subsequent to Acquisition 2,504      
Carrying Amount of Land 1,077      
Carrying Amount of Buildings and Improvements 9,362      
Accumulated Depreciation $ 4,180      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1988      
Outpatient Medical [Member] | Plano, TX, 31201101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 5,423      
Initial Cost of Buildings & Improvements 20,698      
Cost Capitalized Subsequent to Acquisition 138      
Carrying Amount of Land 5,423      
Carrying Amount of Buildings and Improvements 20,836      
Accumulated Depreciation $ 11,412      
Year Acquired Jan. 01, 2008      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Plano, TX, 31314101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 793      
Initial Cost of Buildings & Improvements 83,209      
Cost Capitalized Subsequent to Acquisition 1,356      
Carrying Amount of Land 793      
Carrying Amount of Buildings and Improvements 84,566      
Accumulated Depreciation $ 18,638      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2005      
Outpatient Medical [Member] | Plantation, FL, 31140101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 8,563      
Initial Cost of Buildings & Improvements 10,666      
Cost Capitalized Subsequent to Acquisition 4,269      
Carrying Amount of Land 8,575      
Carrying Amount of Buildings and Improvements 14,923      
Accumulated Depreciation $ 7,044      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1997      
Outpatient Medical [Member] | Plantation, FL, 31141101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 8,848      
Initial Cost of Buildings & Improvements 9,262      
Cost Capitalized Subsequent to Acquisition 893      
Carrying Amount of Land 8,908      
Carrying Amount of Buildings and Improvements 10,095      
Accumulated Depreciation $ 6,498      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1996      
Outpatient Medical [Member] | Portland, ME, 31301101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 655      
Initial Cost of Buildings & Improvements 25,930      
Cost Capitalized Subsequent to Acquisition 13      
Carrying Amount of Land 655      
Carrying Amount of Buildings and Improvements 25,943      
Accumulated Depreciation $ 7,307      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2008      
Outpatient Medical [Member] | Redmond, WA, 31245101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 5,015      
Initial Cost of Buildings & Improvements 26,697      
Cost Capitalized Subsequent to Acquisition 876      
Carrying Amount of Land 5,015      
Carrying Amount of Buildings and Improvements 27,573      
Accumulated Depreciation $ 7,241      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2011      
Outpatient Medical [Member] | Reno, NV, 31116101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,117      
Initial Cost of Buildings & Improvements 21,972      
Cost Capitalized Subsequent to Acquisition 2,056      
Carrying Amount of Land 1,117      
Carrying Amount of Buildings and Improvements 24,028      
Accumulated Depreciation $ 8,627      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1991      
Outpatient Medical [Member] | Richmond, TX, 30100168 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,000      
Initial Cost of Buildings & Improvements 9,118      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,000      
Carrying Amount of Buildings and Improvements 9,118      
Accumulated Depreciation $ 399      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 2016      
Outpatient Medical [Member] | Richmond, VA, 31307101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,969      
Initial Cost of Buildings & Improvements 26,697      
Cost Capitalized Subsequent to Acquisition 630      
Carrying Amount of Land 3,004      
Carrying Amount of Buildings and Improvements 27,291      
Accumulated Depreciation $ 7,440      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2008      
Outpatient Medical [Member] | Rockwall, TX, 30100131 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 132      
Initial Cost of Buildings & Improvements 17,197      
Cost Capitalized Subsequent to Acquisition 527      
Carrying Amount of Land 132      
Carrying Amount of Buildings and Improvements 17,723      
Accumulated Depreciation $ 4,142      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2008      
Outpatient Medical [Member] | Rogers, AR, 31309101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,062      
Initial Cost of Buildings & Improvements 28,680      
Cost Capitalized Subsequent to Acquisition 2,004      
Carrying Amount of Land 1,062      
Carrying Amount of Buildings and Improvements 30,684      
Accumulated Depreciation $ 9,017      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2008      
Outpatient Medical [Member] | Rolla, MO, 30100129 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,931      
Initial Cost of Buildings & Improvements 47,639      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,931      
Carrying Amount of Buildings and Improvements 47,639      
Accumulated Depreciation $ 11,144      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Roswell, NM, 31332101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 183      
Initial Cost of Buildings & Improvements 5,851      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 183      
Carrying Amount of Buildings and Improvements 5,851      
Accumulated Depreciation $ 1,619      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Roswell, NM, 31333101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 883      
Initial Cost of Buildings & Improvements 15,984      
Cost Capitalized Subsequent to Acquisition 18      
Carrying Amount of Land 883      
Carrying Amount of Buildings and Improvements 16,002      
Accumulated Depreciation $ 3,974      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | Roswell, NM, 31334101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 762      
Initial Cost of Buildings & Improvements 17,171      
Cost Capitalized Subsequent to Acquisition 1      
Carrying Amount of Land 762      
Carrying Amount of Buildings and Improvements 17,171      
Accumulated Depreciation $ 3,499      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Sacramento, CA, 31115101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 866      
Initial Cost of Buildings & Improvements 12,756      
Cost Capitalized Subsequent to Acquisition 1,737      
Carrying Amount of Land 869      
Carrying Amount of Buildings and Improvements 14,490      
Accumulated Depreciation $ 5,359      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1990      
Outpatient Medical [Member] | Salem, NH, 31397101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,655      
Initial Cost of Buildings & Improvements 14,050      
Cost Capitalized Subsequent to Acquisition 20      
Carrying Amount of Land 1,655      
Carrying Amount of Buildings and Improvements 14,070      
Accumulated Depreciation $ 2,381      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | San Antonio, TX, 31111101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,048      
Initial Cost of Buildings & Improvements 10,252      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,048      
Carrying Amount of Buildings and Improvements 10,252      
Accumulated Depreciation $ 4,636      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1999      
Outpatient Medical [Member] | San Antonio, TX, 31111102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,038      
Initial Cost of Buildings & Improvements 9,173      
Cost Capitalized Subsequent to Acquisition 1,853      
Carrying Amount of Land 1,074      
Carrying Amount of Buildings and Improvements 10,990      
Accumulated Depreciation $ 5,151      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1999      
Outpatient Medical [Member] | San Antonio, TX, 31319101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 4,518      
Initial Cost of Buildings & Improvements 31,041      
Cost Capitalized Subsequent to Acquisition 3,353      
Carrying Amount of Land 4,548      
Carrying Amount of Buildings and Improvements 34,364      
Accumulated Depreciation $ 9,138      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 1986      
Outpatient Medical [Member] | San Antonio, TX, 31403101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 900      
Initial Cost of Buildings & Improvements 17,288      
Cost Capitalized Subsequent to Acquisition 620      
Carrying Amount of Land 900      
Carrying Amount of Buildings and Improvements 17,907      
Accumulated Depreciation $ 3,636      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Santa Clarita, CA, 31415101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 2,338      
Cost Capitalized Subsequent to Acquisition 20,063      
Carrying Amount of Land 5,218      
Carrying Amount of Buildings and Improvements 17,183      
Accumulated Depreciation $ 2,505      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 1976      
Outpatient Medical [Member] | Santa Clarita, CA, 31415102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 28,384      
Cost Capitalized Subsequent to Acquisition 1,499      
Carrying Amount of Land 5,250      
Carrying Amount of Buildings and Improvements 24,633      
Accumulated Depreciation $ 3,534      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 1998      
Outpatient Medical [Member] | Santa Clarita, CA, 31415103 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 278      
Initial Cost of Buildings & Improvements 185      
Cost Capitalized Subsequent to Acquisition 11,595      
Carrying Amount of Land 11,872      
Carrying Amount of Buildings and Improvements 185      
Accumulated Depreciation $ 123      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 1996      
Outpatient Medical [Member] | Santa Clarita, CA, 31419101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 25,000      
Initial Cost of Land 295      
Initial Cost of Buildings & Improvements 40,257      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 295      
Carrying Amount of Buildings and Improvements 40,257      
Accumulated Depreciation $ 3,964      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Santa Clarita, CA, 31422102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 20,618      
Cost Capitalized Subsequent to Acquisition 718      
Carrying Amount of Land 4,407      
Carrying Amount of Buildings and Improvements 16,929      
Accumulated Depreciation $ 2,615      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 1989      
Outpatient Medical [Member] | Sarasota, FL, 30100123 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 62      
Initial Cost of Buildings & Improvements 47,325      
Cost Capitalized Subsequent to Acquisition 3,134      
Carrying Amount of Land 62      
Carrying Amount of Buildings and Improvements 50,459      
Accumulated Depreciation $ 11,273      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 1990      
Outpatient Medical [Member] | Seattle, WA, 31284101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 4,410      
Initial Cost of Buildings & Improvements 38,428      
Cost Capitalized Subsequent to Acquisition 392      
Carrying Amount of Land 4,410      
Carrying Amount of Buildings and Improvements 38,820      
Accumulated Depreciation $ 13,671      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2010      
Outpatient Medical [Member] | Sewell, NJ, 31207101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 60      
Initial Cost of Buildings & Improvements 57,929      
Cost Capitalized Subsequent to Acquisition 683      
Carrying Amount of Land 164      
Carrying Amount of Buildings and Improvements 58,508      
Accumulated Depreciation $ 21,485      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2009      
Outpatient Medical [Member] | Shakopee, MN, 31263101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 5,900      
Initial Cost of Land 508      
Initial Cost of Buildings & Improvements 11,412      
Cost Capitalized Subsequent to Acquisition 391      
Carrying Amount of Land 509      
Carrying Amount of Buildings and Improvements 11,802      
Accumulated Depreciation $ 3,714      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 1996      
Outpatient Medical [Member] | Shakopee, MN, 31270101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 9,964      
Initial Cost of Land 707      
Initial Cost of Buildings & Improvements 18,089      
Cost Capitalized Subsequent to Acquisition 78      
Carrying Amount of Land 773      
Carrying Amount of Buildings and Improvements 18,102      
Accumulated Depreciation $ 4,421      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Shenandoah, TX, 30100151 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 21,135      
Cost Capitalized Subsequent to Acquisition 51      
Carrying Amount of Land 24      
Carrying Amount of Buildings and Improvements 21,162      
Accumulated Depreciation $ 1,586      
Year Acquired Jan. 01, 2013      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Sherman Oaks, CA, 31422101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 32,186      
Cost Capitalized Subsequent to Acquisition 2,729      
Carrying Amount of Land 3,121      
Carrying Amount of Buildings and Improvements 31,795      
Accumulated Depreciation $ 4,762      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 1969      
Outpatient Medical [Member] | Somerville, NJ, 30100121 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,400      
Initial Cost of Buildings & Improvements 22,244      
Cost Capitalized Subsequent to Acquisition 2      
Carrying Amount of Land 3,400      
Carrying Amount of Buildings and Improvements 22,246      
Accumulated Depreciation $ 5,237      
Year Acquired Jan. 01, 2008      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Southlake, TX, 30100169 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,000      
Initial Cost of Buildings & Improvements 0      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,000      
Carrying Amount of Buildings and Improvements 0      
Accumulated Depreciation $ 0      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 1900      
Outpatient Medical [Member] | Southlake, TX, 31317101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 592      
Initial Cost of Buildings & Improvements 18,243      
Cost Capitalized Subsequent to Acquisition 1,101      
Carrying Amount of Land 592      
Carrying Amount of Buildings and Improvements 19,344      
Accumulated Depreciation $ 4,305      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Southlake, TX, 31318101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 698      
Initial Cost of Buildings & Improvements 30,549      
Cost Capitalized Subsequent to Acquisition 3,915      
Carrying Amount of Land 698      
Carrying Amount of Buildings and Improvements 34,464      
Accumulated Depreciation $ 6,472      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2004      
Outpatient Medical [Member] | Springfield, IL, 31461101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,569      
Initial Cost of Buildings & Improvements 10,350      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,568      
Carrying Amount of Buildings and Improvements 10,351      
Accumulated Depreciation $ 852      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2011      
Outpatient Medical [Member] | Springfield, IL, 31462101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 177      
Initial Cost of Buildings & Improvements 3,519      
Cost Capitalized Subsequent to Acquisition 31      
Carrying Amount of Land 177      
Carrying Amount of Buildings and Improvements 3,551      
Accumulated Depreciation $ 300      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2011      
Outpatient Medical [Member] | St Paul, MN, 31425101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 49      
Initial Cost of Buildings & Improvements 37,695      
Cost Capitalized Subsequent to Acquisition 402      
Carrying Amount of Land 49      
Carrying Amount of Buildings and Improvements 38,096      
Accumulated Depreciation $ 4,007      
Year Acquired Jan. 01, 2014      
Year Built Jan. 01, 2006      
Outpatient Medical [Member] | St. Louis, MO, 31175101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 336      
Initial Cost of Buildings & Improvements 17,247      
Cost Capitalized Subsequent to Acquisition 2,004      
Carrying Amount of Land 336      
Carrying Amount of Buildings and Improvements 19,250      
Accumulated Depreciation $ 6,769      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2001      
Outpatient Medical [Member] | St. Paul, MN, 31276101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,706      
Initial Cost of Buildings & Improvements 39,507      
Cost Capitalized Subsequent to Acquisition 325      
Carrying Amount of Land 2,701      
Carrying Amount of Buildings and Improvements 39,838      
Accumulated Depreciation $ 10,622      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Stamford, CT, 31439101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 41,153      
Cost Capitalized Subsequent to Acquisition 1,709      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 42,862      
Accumulated Depreciation $ 1,176      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 2016      
Outpatient Medical [Member] | Suffern, NY, 30100130 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 653      
Initial Cost of Buildings & Improvements 37,255      
Cost Capitalized Subsequent to Acquisition 183      
Carrying Amount of Land 696      
Carrying Amount of Buildings and Improvements 37,394      
Accumulated Depreciation $ 10,155      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Suffolk, VA, 30100122 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,566      
Initial Cost of Buildings & Improvements 11,511      
Cost Capitalized Subsequent to Acquisition 219      
Carrying Amount of Land 1,620      
Carrying Amount of Buildings and Improvements 11,676      
Accumulated Depreciation $ 4,328      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2007      
Outpatient Medical [Member] | Sugar Land, TX, 31363101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,543      
Initial Cost of Buildings & Improvements 15,532      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,543      
Carrying Amount of Buildings and Improvements 15,532      
Accumulated Depreciation $ 4,408      
Year Acquired Jan. 01, 2012      
Year Built Jan. 01, 2005      
Outpatient Medical [Member] | Tacoma, WA, 31302101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 64,307      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 64,307      
Accumulated Depreciation $ 14,457      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2013      
Outpatient Medical [Member] | Tallahassee, FL, 31241101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 17,449      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 17,449      
Accumulated Depreciation $ 5,095      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2011      
Outpatient Medical [Member] | Tampa, FL, 30100125 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 4,319      
Initial Cost of Buildings & Improvements 12,234      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 4,319      
Carrying Amount of Buildings and Improvements 12,234      
Accumulated Depreciation $ 2,425      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2003      
Outpatient Medical [Member] | Tampa, FL, 30100210 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,462      
Initial Cost of Buildings & Improvements 7,270      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 1,462      
Carrying Amount of Buildings and Improvements 7,270      
Accumulated Depreciation $ 47      
Year Acquired Jan. 01, 2017      
Year Built Jan. 01, 1996      
Outpatient Medical [Member] | Temple, TX, 31305101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,900      
Initial Cost of Buildings & Improvements 9,954      
Cost Capitalized Subsequent to Acquisition 26      
Carrying Amount of Land 2,900      
Carrying Amount of Buildings and Improvements 9,980      
Accumulated Depreciation $ 1,375      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 2012      
Outpatient Medical [Member] | Timonium, MD, 31478101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 8,829      
Initial Cost of Buildings & Improvements 12,568      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 8,829      
Carrying Amount of Buildings and Improvements 12,568      
Accumulated Depreciation $ 263      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 2017      
Outpatient Medical [Member] | Tucson, AZ, 31197101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 1,302      
Initial Cost of Buildings & Improvements 4,925      
Cost Capitalized Subsequent to Acquisition 897      
Carrying Amount of Land 1,325      
Carrying Amount of Buildings and Improvements 5,799      
Accumulated Depreciation $ 2,662      
Year Acquired Jan. 01, 2008      
Year Built Jan. 01, 1995      
Outpatient Medical [Member] | Tustin, CA, 31447101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,345      
Initial Cost of Buildings & Improvements 541      
Cost Capitalized Subsequent to Acquisition 61      
Carrying Amount of Land 3,345      
Carrying Amount of Buildings and Improvements 602      
Accumulated Depreciation $ 230      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 1976      
Outpatient Medical [Member] | Tustin, CA, 31447102 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,361      
Initial Cost of Buildings & Improvements 12,039      
Cost Capitalized Subsequent to Acquisition 1,421      
Carrying Amount of Land 3,361      
Carrying Amount of Buildings and Improvements 13,460      
Accumulated Depreciation $ 2,124      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 1985      
Outpatient Medical [Member] | Van Nuys, CA, 31231101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 36,187      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 0      
Carrying Amount of Buildings and Improvements 36,187      
Accumulated Depreciation $ 8,749      
Year Acquired Jan. 01, 2009      
Year Built Jan. 01, 1991      
Outpatient Medical [Member] | Voorhees, NJ, 31117101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 6,404      
Initial Cost of Buildings & Improvements 24,251      
Cost Capitalized Subsequent to Acquisition 1,499      
Carrying Amount of Land 6,477      
Carrying Amount of Buildings and Improvements 25,677      
Accumulated Depreciation $ 9,126      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 1997      
Outpatient Medical [Member] | Voorhees, NJ, 31255101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 6      
Initial Cost of Buildings & Improvements 96,075      
Cost Capitalized Subsequent to Acquisition 400      
Carrying Amount of Land 99      
Carrying Amount of Buildings and Improvements 96,381      
Accumulated Depreciation $ 21,530      
Year Acquired Jan. 01, 2010      
Year Built Jan. 01, 2012      
Outpatient Medical [Member] | Wausau, WI, 31467101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 2,050      
Initial Cost of Buildings & Improvements 12,176      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 2,050      
Carrying Amount of Buildings and Improvements 12,176      
Accumulated Depreciation $ 352      
Year Acquired Jan. 01, 2015      
Year Built Jan. 01, 2017      
Outpatient Medical [Member] | Waxahachie, TX, 30100201 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 0      
Initial Cost of Buildings & Improvements 18,784      
Cost Capitalized Subsequent to Acquisition 95      
Carrying Amount of Land 303      
Carrying Amount of Buildings and Improvements 18,576      
Accumulated Depreciation $ 909      
Year Acquired Jan. 01, 2016      
Year Built Jan. 01, 2014      
Outpatient Medical [Member] | Wellington, FL, 31160101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 107      
Initial Cost of Buildings & Improvements 16,933      
Cost Capitalized Subsequent to Acquisition 2,685      
Carrying Amount of Land 326      
Carrying Amount of Buildings and Improvements 19,398      
Accumulated Depreciation $ 6,388      
Year Acquired Jan. 01, 2006      
Year Built Jan. 01, 2000      
Outpatient Medical [Member] | Wellington, FL, 31184101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 388      
Initial Cost of Buildings & Improvements 13,697      
Cost Capitalized Subsequent to Acquisition 1,637      
Carrying Amount of Land 580      
Carrying Amount of Buildings and Improvements 15,142      
Accumulated Depreciation $ 4,720      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 2003      
Outpatient Medical [Member] | West Seneca, NY, 31190101 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 917      
Initial Cost of Buildings & Improvements 22,435      
Cost Capitalized Subsequent to Acquisition 3,841      
Carrying Amount of Land 1,665      
Carrying Amount of Buildings and Improvements 25,528      
Accumulated Depreciation $ 9,442      
Year Acquired Jan. 01, 2007      
Year Built Jan. 01, 1990      
Outpatient Medical [Member] | Zephyrhills, FL, 30100127 Outpatient Medical [Member]        
Real Estate and Accumulated Depreciation [Line Items]        
Initial Cost of Encumbrances $ 0      
Initial Cost of Land 3,874      
Initial Cost of Buildings & Improvements 27,266      
Cost Capitalized Subsequent to Acquisition 0      
Carrying Amount of Land 3,875      
Carrying Amount of Buildings and Improvements 27,274      
Accumulated Depreciation $ 5,923      
Year Acquired Jan. 01, 2011      
Year Built Jan. 01, 1974      
[1]
Please see Note 2 to our consolidated financial statements for information regarding lives used for depreciation and amortization.