Schedule III Real Estate and Accumulated Depreciation (Detail) - 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]
Encumbrance	[1]	$ 75,742
Initial Cost, Land		50,302
Initial Cost, Building & Improvements		478,853
Adjustments to Basis	[2]	63,169
Land		53,142
Buildings and Improvements		539,182
CIP		7,452
Total		599,776	$ 585,828	$ 511,657	$ 486,589
Accumulated Depreciation		153,379	$ 138,588
Inland Valley Regional Medical Center Wildomar, California
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		2,050
Initial Cost, Building & Improvements		10,701
Adjustments to Basis	[2]	14,596
Land		2,050
Buildings and Improvements		25,297
Total		27,347
Accumulated Depreciation		$ 13,307
Date of Completion of Construction, Acquisition or Significant Improvement		2007
Date Acquired		1986
Average Depreciable Life		43 years
McAllen Medical Center McAllen, Texas
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 4,720
Initial Cost, Building & Improvements		31,442
Adjustments to Basis	[2]	10,189
Land		6,281
Buildings and Improvements		40,070
Total		46,351
Accumulated Depreciation		$ 27,221
Date of Completion of Construction, Acquisition or Significant Improvement		1994
Date Acquired		1986
Average Depreciable Life		42 years
Wellington Regional Medical Center West Palm Beach, Florida
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,190
Initial Cost, Building & Improvements		14,652
Adjustments to Basis	[2]	17,370
Land		1,663
Buildings and Improvements		31,549
Total		33,212
Accumulated Depreciation		$ 19,485
Date of Completion of Construction, Acquisition or Significant Improvement		2006
Date Acquired		1986
Average Depreciable Life		42 years
HealthSouth Deaconess Rehabilitation Hospital Evansville, Indiana
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 500
Initial Cost, Building & Improvements		6,945
Adjustments to Basis	[2]	1,062
Land		500
Buildings and Improvements		8,007
Total		8,507
Accumulated Depreciation		$ 5,678
Date of Completion of Construction, Acquisition or Significant Improvement		1993
Date Acquired		1989
Average Depreciable Life		40 years
Kindred Chicago Central Hospital Central Chicago, Illinois
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 158
Initial Cost, Building & Improvements		6,404
Adjustments to Basis	[2]	1,838
Land		158
Buildings and Improvements		8,242
Total		8,400
Accumulated Depreciation		$ 8,242
Date of Completion of Construction, Acquisition or Significant Improvement		1993
Date Acquired		1986
Average Depreciable Life		25 years
Family Doctor's Medical Office Building Shreveport, Louisiana
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 54
Initial Cost, Building & Improvements		1,526
Adjustments to Basis	[2]	494
Land		54
Buildings and Improvements		2,020
Total		2,074
Accumulated Depreciation		$ 1,045
Date of Completion of Construction, Acquisition or Significant Improvement		1991
Date Acquired		1995
Average Depreciable Life		45 years
Kelsey-Seybold Clinic at King's Crossing Kingwood, Texas
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	[3]	$ 439
Initial Cost, Building & Improvements	[3]	1,618
Adjustments to Basis	[2],[3]	(1,618)
Land	[3]	439
Total	[3]	$ 439
Date of Completion of Construction, Acquisition or Significant Improvement	[3]	1995
Date Acquired	[3]	1995
Average Depreciable Life	[3]	45 years
Professional Buildings at King's Crossing Kingwood, Texas
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	[3]	$ 439
Initial Cost, Building & Improvements	[3]	1,837
Adjustments to Basis	[2],[3]	(1,837)
Land	[3]	439
Total	[3]	$ 439
Date of Completion of Construction, Acquisition or Significant Improvement	[3]	1995
Date Acquired	[3]	1995
Average Depreciable Life	[3]	45 years
Chesterbrook Academy Audubon, Pennsylvania
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 307
Initial Cost, Building & Improvements		996
Land		307
Buildings and Improvements		996
Total		1,303
Accumulated Depreciation		$ 477
Date of Completion of Construction, Acquisition or Significant Improvement		1996
Date Acquired		1996
Average Depreciable Life		45 years
Chesterbrook Academy New Britain, Pennsylvania
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 250
Initial Cost, Building & Improvements		744
Land		250
Buildings and Improvements		744
Total		994
Accumulated Depreciation		$ 360
Date of Completion of Construction, Acquisition or Significant Improvement		1991
Date Acquired		1996
Average Depreciable Life		45 years
Chesterbrook Academy Uwchlan, Pennsylvania
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 180
Initial Cost, Building & Improvements		815
Land		180
Buildings and Improvements		815
Total		995
Accumulated Depreciation		$ 392
Date of Completion of Construction, Acquisition or Significant Improvement		1992
Date Acquired		1996
Average Depreciable Life		45 years
Chesterbrook Academy Newtown, Pennsylvania
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 195
Initial Cost, Building & Improvements		749
Land		195
Buildings and Improvements		749
Total		944
Accumulated Depreciation		$ 362
Date of Completion of Construction, Acquisition or Significant Improvement		1992
Date Acquired		1996
Average Depreciable Life		45 years
The Southern Crescent Center I
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	[4]	$ 1,130
Initial Cost, Building & Improvements	[4]	5,092
Adjustments to Basis	[2],[4]	(2,271)
Land	[4]	1,130
Buildings and Improvements	[4]	2,821
Total	[4]	3,951
Accumulated Depreciation	[4]	$ 2,493
Date of Completion of Construction, Acquisition or Significant Improvement	[4]	1994
Date Acquired	[4]	1996
Average Depreciable Life	[4]	45 years
The Southern Crescent Center II Riverdale, Georgia
Real Estate and Accumulated Depreciation [Line Items]
Adjustments to Basis	[2],[4]	$ 5,040
Land	[4]	806
Buildings and Improvements	[4]	4,234
Total	[4]	5,040
Accumulated Depreciation	[4]	$ 2,494
Date of Completion of Construction, Acquisition or Significant Improvement	[4]	2000
Date Acquired	[4]	1998
Average Depreciable Life	[4]	35 years
The Cypresswood Professional Center Spring, Texas
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land	[5]	$ 573
Initial Cost, Building & Improvements	[5]	3,842
Adjustments to Basis	[2],[5]	(3,004)
Land	[5]	573
Buildings and Improvements	[5]	838
Total	[5]	1,411
Accumulated Depreciation	[5]	$ 507
Date of Completion of Construction, Acquisition or Significant Improvement	[5]	1997
Date Acquired	[5]	1997
Average Depreciable Life	[5]	35 years
701 South Tonopah Building Las Vegas, Nevada
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Building & Improvements	[6]	$ 1,579
Adjustments to Basis	[2],[6]	68
Buildings and Improvements	[6]	1,647
Total	[6]	1,647
Accumulated Depreciation	[6]	$ 1,150
Date of Completion of Construction, Acquisition or Significant Improvement	[6]	1999
Date Acquired	[6]	1999
Average Depreciable Life	[6]	25 years
Danbury Medical Plaza Danbury, Connecticut
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,151
Initial Cost, Building & Improvements		5,176
Adjustments to Basis	[2]	826
Land		1,151
Buildings and Improvements		6,002
Total		7,153
Accumulated Depreciation		$ 3,560
Date of Completion of Construction, Acquisition or Significant Improvement		2000
Date Acquired		2000
Average Depreciable Life		30 years
Vibra Hospital of Corpus Christi Corpus Christi, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1]	$ 2,624
Initial Cost, Land		1,104
Initial Cost, Building & Improvements		5,508
Land		1,104
Buildings and Improvements		5,508
Total		6,612
Accumulated Depreciation		$ 1,557
Date of Completion of Construction, Acquisition or Significant Improvement		2008
Date Acquired		2008
Average Depreciable Life		35 years
Apache Junction Medical Plaza Apache Junction, AZ
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 240
Initial Cost, Building & Improvements		3,590
Adjustments to Basis	[2]	1,159
Land		240
Buildings and Improvements		4,749
Total		4,989
Accumulated Depreciation		$ 1,317
Date of Completion of Construction, Acquisition or Significant Improvement		2004
Date Acquired		2004
Average Depreciable Life		30 years
Auburn Medical Office Building II Auburn, WA
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Building & Improvements	[7]	$ 10,200
Adjustments to Basis	[2],[7]	176
Buildings and Improvements	[7]	10,376
Total	[7]	10,376
Accumulated Depreciation	[7]	$ 2,058
Date of Completion of Construction, Acquisition or Significant Improvement	[7]	2009
Date Acquired	[7]	2009
Average Depreciable Life	[7]	36 years
BRB Medical Office Building Kingwood, Texas
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1]	$ 6,126
Initial Cost, Land		430
Initial Cost, Building & Improvements		8,970
Adjustments to Basis	[2]	39
Land		430
Buildings and Improvements		9,009
Total		9,439
Accumulated Depreciation		$ 1,764
Date of Completion of Construction, Acquisition or Significant Improvement		2010
Date Acquired		2010
Average Depreciable Life		37 years
Centennial Hills Medical Office Building Las Vegas, NV
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1],[6]	$ 9,764
Initial Cost, Building & Improvements	[6]	19,890
Adjustments to Basis	[2],[6]	1,880
Buildings and Improvements	[6]	21,770
CIP	[6]	38
Total	[6]	21,808
Accumulated Depreciation	[6]	$ 4,612
Date of Completion of Construction, Acquisition or Significant Improvement	[6]	2006
Date Acquired	[6]	2006
Average Depreciable Life	[6]	34 years
Desert Springs Medical Plaza Las Vegas, NV
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,200
Initial Cost, Building & Improvements		9,560
Adjustments to Basis	[2]	1,339
Land		1,200
Buildings and Improvements		10,899
CIP		100
Total		12,199
Accumulated Depreciation		$ 2,680
Date of Completion of Construction, Acquisition or Significant Improvement		1998
Date Acquired		1998
Average Depreciable Life		30 years
700 Shadow Lane & Goldring MOBs Las Vegas, NV
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1]	$ 6,059
Initial Cost, Land		400
Initial Cost, Building & Improvements		11,300
Adjustments to Basis	[2]	3,539
Land		400
Buildings and Improvements		14,839
CIP		12
Total		15,251
Accumulated Depreciation		$ 3,554
Date of Completion of Construction, Acquisition or Significant Improvement		2003
Date Acquired		2003
Average Depreciable Life		30 years
Spring Valley Hospital MOB I Las Vegas, NV
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Building & Improvements	[6]	$ 9,500
Adjustments to Basis	[2],[6]	1,063
Buildings and Improvements	[6]	10,563
CIP	[6]	19
Total	[6]	10,582
Accumulated Depreciation	[6]	$ 2,317
Date of Completion of Construction, Acquisition or Significant Improvement	[6]	2004
Date Acquired	[6]	2004
Average Depreciable Life	[6]	35 years
Spring Valley Hospital MOB II Las Vegas, NV
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Building & Improvements	[6]	$ 9,800
Adjustments to Basis	[2],[6]	503
Buildings and Improvements	[6]	10,303
Total	[6]	10,303
Accumulated Depreciation	[6]	$ 2,282
Date of Completion of Construction, Acquisition or Significant Improvement	[6]	2006
Date Acquired	[6]	2006
Average Depreciable Life	[6]	34 years
Summerlin Hospital MOB I Las Vegas, NV
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 460
Initial Cost, Building & Improvements		15,440
Adjustments to Basis	[2]	1,460
Land		460
Buildings and Improvements		16,900
CIP		48
Total		17,408
Accumulated Depreciation		$ 3,988
Date of Completion of Construction, Acquisition or Significant Improvement		1999
Date Acquired		1999
Average Depreciable Life		30 years
Summerlin Hospital MOB II Las Vegas, NV
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 370
Initial Cost, Building & Improvements		16,830
Adjustments to Basis	[2]	1,446
Land		370
Buildings and Improvements		18,276
CIP		13
Total		18,659
Accumulated Depreciation		$ 4,326
Date of Completion of Construction, Acquisition or Significant Improvement		2000
Date Acquired		2000
Average Depreciable Life		30 years
Summerlin Hospital MOB III Las Vegas, NV
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1],[6]	$ 13,199
Initial Cost, Building & Improvements	[6]	14,900
Adjustments to Basis	[2],[6]	2,161
Buildings and Improvements	[6]	17,061
Total	[6]	17,061
Accumulated Depreciation	[6]	$ 3,260
Date of Completion of Construction, Acquisition or Significant Improvement	[6]	2009
Date Acquired	[6]	2009
Average Depreciable Life	[6]	36 years
Emory at Dunwoody Building Dunwoody, GA
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 782
Initial Cost, Building & Improvements		3,455
Land		782
Buildings and Improvements		3,455
Total		4,237
Accumulated Depreciation		$ 789
Date of Completion of Construction, Acquisition or Significant Improvement		2011
Date Acquired		2011
Average Depreciable Life		35 years
Forney Medical Plaza Forney, TX
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 910
Initial Cost, Building & Improvements		11,960
Adjustments to Basis	[2]	55
Land		910
Buildings and Improvements		12,015
Total		12,925
Accumulated Depreciation		$ 3,026
Date of Completion of Construction, Acquisition or Significant Improvement		2011
Date Acquired		2011
Average Depreciable Life		35 years
Lake Pointe Medical Arts Building Rowlett, TX
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,100
Initial Cost, Building & Improvements		9,000
Adjustments to Basis	[2]	31
Land		1,100
Buildings and Improvements		9,031
CIP		1
Total		10,132
Accumulated Depreciation		$ 1,992
Date of Completion of Construction, Acquisition or Significant Improvement		2011
Date Acquired		2011
Average Depreciable Life		35 years
Tuscan Professional Building Irving, TX
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1]	$ 4,519
Initial Cost, Land		1,100
Initial Cost, Building & Improvements		12,525
Adjustments to Basis	[2]	1,214
Land		1,100
Buildings and Improvements		13,739
Total		14,839
Accumulated Depreciation		$ 2,715
Date of Completion of Construction, Acquisition or Significant Improvement		2011
Date Acquired		2011
Average Depreciable Life		35 years
Peace Health Medical Clinic Bellingham, WA
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,900
Initial Cost, Building & Improvements		24,910
Land		1,900
Buildings and Improvements		24,910
Total		26,810
Accumulated Depreciation		$ 5,024
Date of Completion of Construction, Acquisition or Significant Improvement		2012
Date Acquired		2012
Average Depreciable Life		35 years
Northwest Texas Professional Office Tower Amarillo TX
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Building & Improvements	[6]	$ 7,180
Buildings and Improvements	[6]	7,180
Total	[6]	7,180
Accumulated Depreciation	[6]	$ 1,208
Date of Completion of Construction, Acquisition or Significant Improvement	[6]	2012
Date Acquired	[6]	2012
Average Depreciable Life	[6]	35 years
Ward Eagle Office Village Farmington Hills MI
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 220
Initial Cost, Building & Improvements		3,220
Land		220
Buildings and Improvements		3,220
Total		3,440
Accumulated Depreciation		$ 526
Date of Completion of Construction, Acquisition or Significant Improvement		2013
Date Acquired		2013
Average Depreciable Life		35 years
5004 Poole Road Medical Office Building Denison, TX
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 96
Initial Cost, Building & Improvements		529
Land		96
Buildings and Improvements		529
Total		625
Accumulated Depreciation		$ 81
Date of Completion of Construction, Acquisition or Significant Improvement		2013
Date Acquired		2013
Average Depreciable Life		35 years
Desert Valley Medical Center Phoenix AZ
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1]	$ 4,946
Initial Cost, Land		2,280
Initial Cost, Building & Improvements		4,624
Adjustments to Basis	[2]	479
Land		2,280
Buildings and Improvements		5,103
CIP		80
Total		7,463
Accumulated Depreciation		$ 757
Date of Completion of Construction, Acquisition or Significant Improvement		1996
Date Acquired		1996
Average Depreciable Life		30 years
Hanover Emergency Center Mechanicsville, VA
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,300
Initial Cost, Building & Improvements		6,224
Land		1,300
Buildings and Improvements		6,224
Total		7,524
Accumulated Depreciation		$ 699
Date of Completion of Construction, Acquisition or Significant Improvement		2014
Date Acquired		2014
Average Depreciable Life		35 years
Haas Medical Office Park Ottumwa, IA
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Building & Improvements	[7]	$ 3,571
Buildings and Improvements	[7]	3,571
Total	[7]	3,571
Accumulated Depreciation	[7]	$ 343
Date of Completion of Construction, Acquisition or Significant Improvement	[7]	2015
Date Acquired	[7]	2015
Average Depreciable Life	[7]	35 years
South Texas ER at Mission, Mission, TX
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,441
Initial Cost, Building & Improvements		4,696
Land		1,441
Buildings and Improvements		4,696
Total		6,137
Accumulated Depreciation		$ 458
Date of Completion of Construction, Acquisition or Significant Improvement		2015
Date Acquired		2015
Average Depreciable Life		35 years
North Valley Medical Plaza Phoenix, AZ
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 930
Initial Cost, Building & Improvements		6,929
Adjustments to Basis	[2]	612
Land		930
Buildings and Improvements		7,541
CIP		796
Total		9,267
Accumulated Depreciation		$ 1,004
Date of Completion of Construction, Acquisition or Significant Improvement		2010
Date Acquired		2010
Average Depreciable Life		30 years
Northwest Medical Center at Sugar Creek, Bentonville, AR
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,100
Initial Cost, Building & Improvements		2,870
Land		1,100
Buildings and Improvements		2,870
Total		3,970
Accumulated Depreciation		$ 366
Date of Completion of Construction, Acquisition or Significant Improvement		2014
Date Acquired		2014
Average Depreciable Life		35 years
The Children's Clinic at Springdale, Springdale, AR
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 610
Initial Cost, Building & Improvements		1,570
Land		610
Buildings and Improvements		1,570
Total		2,180
Accumulated Depreciation		$ 225
Date of Completion of Construction, Acquisition or Significant Improvement		2014
Date Acquired		2014
Average Depreciable Life		35 years
Rosenberg Children's Medical Plaza, Phoenix, AZ
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1],[7]	$ 7,968
Initial Cost, Building & Improvements	[7]	23,302
Adjustments to Basis	[2],[7]	34
Buildings and Improvements	[7]	23,336
Total	[7]	23,336
Accumulated Depreciation	[7]	$ 2,682
Date of Completion of Construction, Acquisition or Significant Improvement	[7]	2001
Date Acquired	[7]	2001
Average Depreciable Life	[7]	35 years
Phoenix Children's East Valley Care Center, Phoenix, AZ
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1]	$ 9,400
Initial Cost, Land		1,050
Initial Cost, Building & Improvements		10,900
Land		1,050
Buildings and Improvements		10,900
Total		11,950
Accumulated Depreciation		$ 1,250
Date of Completion of Construction, Acquisition or Significant Improvement		2006
Date Acquired		2006
Average Depreciable Life		35 years
Palmdale Medical Plaza, Palmdale, CA
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Building & Improvements	[6]	$ 10,555
Adjustments to Basis	[2],[6]	1,745
Buildings and Improvements	[6]	12,300
CIP	[6]	8
Total	[6]	12,308
Accumulated Depreciation	[6]	$ 1,638
Date of Completion of Construction, Acquisition or Significant Improvement	[6]	2008
Date Acquired	[6]	2008
Average Depreciable Life	[6]	34 years
Piedmont-Roswell Physician Center Sandy Springs, GA
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 2,338
Initial Cost, Building & Improvements		2,128
Land		2,338
Buildings and Improvements		2,128
Total		4,466
Accumulated Depreciation		$ 243
Date of Completion of Construction, Acquisition or Significant Improvement		2015
Date Acquired		2015
Average Depreciable Life		30 years
Piedmont-Vinings Physician Center Vinings, GA
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,348
Initial Cost, Building & Improvements		2,418
Land		1,348
Buildings and Improvements		2,418
Total		3,766
Accumulated Depreciation		$ 267
Date of Completion of Construction, Acquisition or Significant Improvement		2015
Date Acquired		2015
Average Depreciable Life		30 years
Santa Fe Professional Plaza Scottsdale, AZ
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,090
Initial Cost, Building & Improvements		1,960
Adjustments to Basis	[2]	359
Land		1,090
Buildings and Improvements		2,319
CIP		1
Total		3,410
Accumulated Depreciation		$ 360
Date of Completion of Construction, Acquisition or Significant Improvement		1999
Date Acquired		1999
Average Depreciable Life		30 years
Sierra San Antonio Medical Plaza Fontana, CA
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Building & Improvements	[7]	$ 11,538
Adjustments to Basis	[2],[7]	514
Buildings and Improvements	[7]	12,052
CIP	[7]	10
Total	[7]	12,062
Accumulated Depreciation	[7]	$ 1,560
Date of Completion of Construction, Acquisition or Significant Improvement	[7]	2006
Date Acquired	[7]	2006
Average Depreciable Life	[7]	30 years
Vista Medical Terrace & Sparks MOB Sparks, NV
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1],[6]	$ 4,130
Initial Cost, Building & Improvements	[6]	9,276
Adjustments to Basis	[2],[6]	608
Buildings and Improvements	[6]	9,884
CIP	[6]	39
Total	[6]	9,923
Accumulated Depreciation	[6]	$ 1,760
Date of Completion of Construction, Acquisition or Significant Improvement	[6]	2008
Date Acquired	[6]	2008
Average Depreciable Life	[6]	30 years
South Texas ER at Weslaco, Weslaco, TX
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 1,749
Initial Cost, Building & Improvements		4,879
Land		1,749
Buildings and Improvements		4,879
Total		6,628
Accumulated Depreciation		$ 485
Date of Completion of Construction, Acquisition or Significant Improvement		2015
Date Acquired		2015
Average Depreciable Life		35 years
Chandler Corporate Center III Chandler, AZ
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 2,328
Initial Cost, Building & Improvements		14,131
Land		2,328
Buildings and Improvements		14,131
Total		16,459
Accumulated Depreciation		$ 1,042
Date of Completion of Construction, Acquisition or Significant Improvement		2016
Date Acquired		2016
Average Depreciable Life		35 years
Frederick Crestwood MOB Frederick, MD
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 2,265
Initial Cost, Building & Improvements		18,731
Land		2,265
Buildings and Improvements		18,731
Total		20,996
Accumulated Depreciation		$ 939
Date of Completion of Construction, Acquisition or Significant Improvement		2016
Date Acquired		2016
Average Depreciable Life		35 years
Madison Professional Office Building Madison, AL
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 2,296
Initial Cost, Building & Improvements		6,411
Land		2,296
Buildings and Improvements		6,411
Total		8,707
Accumulated Depreciation		$ 473
Date of Completion of Construction, Acquisition or Significant Improvement		2016
Date Acquired		2016
Average Depreciable Life		35 years
Tenaya Medical Office Building Las Vegas, NV
Real Estate and Accumulated Depreciation [Line Items]
Encumbrance	[1]	$ 7,007
Initial Cost, Land		3,032
Initial Cost, Building & Improvements		10,602
Land		3,032
Buildings and Improvements		10,602
Total		13,634
Accumulated Depreciation		$ 444
Date of Completion of Construction, Acquisition or Significant Improvement		2016
Date Acquired		2016
Average Depreciable Life		35 years
Henderson Medical Plaza Henderson, NV
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Building & Improvements	[6]	$ 10,718
Buildings and Improvements	[6]	10,718
CIP	[6]	6,287
Total	[6]	17,005
Accumulated Depreciation	[6]	$ 412
Date of Completion of Construction, Acquisition or Significant Improvement	[6]	2017
Date Acquired	[6]	2017
Average Depreciable Life	[6]	35 years
Hamburg Medical Building Hamburg, PA
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 696
Initial Cost, Building & Improvements		3,406
Land		696
Buildings and Improvements		3,406
Total		4,102
Accumulated Depreciation		$ 64
Date of Completion of Construction, Acquisition or Significant Improvement		2017
Date Acquired		2017
Average Depreciable Life		35 years
Las Palmas Del Sol Emergency Center - West El Paso, TX
Real Estate and Accumulated Depreciation [Line Items]
Initial Cost, Land		$ 801
Initial Cost, Building & Improvements		5,029
Land		801
Buildings and Improvements		5,029
Total		5,830
Accumulated Depreciation		$ 59
Date of Completion of Construction, Acquisition or Significant Improvement		2017
Date Acquired		2017
Average Depreciable Life		35 years

[1] Consists of outstanding balances as of December 31, 2017 on third-party debt that is non-recourse to us.

[2] Consists of costs subsequent to acquisition that were capitalized, divested or written down in connection with asset impairments and hurricane related damage.

[3] Carrying value of depreciable assets were written down to zero as a result of substantial damage from Hurricane Harvey during the third quarter of 2017.

[4] During 2008, a $4.6 million provision for asset impairment was recorded in connection with the real estate assets of Southern Crescent Center I & Southern Crescent Center II.

[5] Carrying value of depreciable assets were written down as a result of substantial damage from Hurricane Harvey during the third quarter of 2017.

[6] At December 31, 2017, we are the lessee with a UHS-related party on a ground lease for land.

[7] At December 31, 2017, we are the lessee with a third party on a ground lease for land.