SCHEDULE III (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]
Encumbrances	[1],[2]	$ 200,354
Initial Cost to the Company [Abstract]
Land	[1],[2]	447,081
Buildings and Improvements	[1],[2]	1,049,394
Costs Capitalized Subsequent to Acquisition	[1],[2]	1,080,998
Gross Amount at which Carried at Close of Period [Abstract]
Land	[1],[2]	451,818
Buildings and Improvements	[1],[2]	2,125,655
Total	[3]	2,577,473	[1],[2]	$ 2,406,981	$ 2,219,448	$ 2,074,946
Accumulated Depreciation		$ 749,601	[1],[2]	$ 694,250	$ 657,454	$ 600,526
Year Constructed		1998
Industrial Development [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	103,827
Buildings and Improvements	[4]	18,966
Costs Capitalized Subsequent to Acquisition	[4]	119,221
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	106,394
Buildings and Improvements	[4]	135,620
Total	[4]	242,014
Accumulated Depreciation	[4]	326
FLORIDA | Industrial [Member] | Tampa [Member] | 56th Street Commerce Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	0
Initial Cost to the Company [Abstract]
Land	[5]	843
Buildings and Improvements	[5]	3,567
Costs Capitalized Subsequent to Acquisition	[5]	4,527
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	843
Buildings and Improvements	[5]	8,094
Total	[5]	8,937
Accumulated Depreciation	[5]	$ 6,129
Year Acquired	[5]	1993
Year Constructed	[5]	1981/86/97
FLORIDA | Industrial [Member] | Tampa [Member] | Jetport Commerce Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,575
Buildings and Improvements	[5]	6,591
Costs Capitalized Subsequent to Acquisition	[5]	5,899
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,575
Buildings and Improvements	[5]	12,490
Total	[5]	14,065
Accumulated Depreciation	[5]	$ 8,545
Year Acquired	[5]	1993-99
Year Constructed	[5]	1974-85
FLORIDA | Industrial [Member] | Tampa [Member] | Westport Commerce Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	980
Buildings and Improvements	[5]	3,800
Costs Capitalized Subsequent to Acquisition	[5]	2,765
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	980
Buildings and Improvements	[5]	6,565
Total	[5]	7,545
Accumulated Depreciation	[5]	$ 4,628
Year Acquired	[5]	1994
Year Constructed	[5]	1983/87
FLORIDA | Industrial [Member] | Tampa [Member] | Benjamin Distribution Center I and II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	843
Buildings and Improvements	[5]	3,963
Costs Capitalized Subsequent to Acquisition	[5]	1,572
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	883
Buildings and Improvements	[5]	5,495
Total	[5]	6,378
Accumulated Depreciation	[5]	$ 3,788
Year Acquired	[5]	1997
Year Constructed	[5]	1996
FLORIDA | Industrial [Member] | Tampa [Member] | Benjamin Distribution Center III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	407
Buildings and Improvements	[5]	1,503
Costs Capitalized Subsequent to Acquisition	[5]	650
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	407
Buildings and Improvements	[5]	2,153
Total	[5]	2,560
Accumulated Depreciation	[5]	$ 1,559
Year Acquired	[5]	1999
Year Constructed	[5]	1988
FLORIDA | Industrial [Member] | Tampa [Member] | Palm River Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,190
Buildings and Improvements	[5]	4,625
Costs Capitalized Subsequent to Acquisition	[5]	2,585
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,190
Buildings and Improvements	[5]	7,210
Total	[5]	8,400
Accumulated Depreciation	[5]	$ 4,763
Year Acquired	[5]	1997/98
Year Constructed	[5]	1990/97/98
FLORIDA | Industrial [Member] | Tampa [Member] | Palm River North I and III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,005
Buildings and Improvements	[5]	4,688
Costs Capitalized Subsequent to Acquisition	[5]	2,404
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,005
Buildings and Improvements	[5]	7,092
Total	[5]	8,097
Accumulated Depreciation	[5]	$ 4,234
Year Acquired	[5]	1998
Year Constructed	[5]	2000
FLORIDA | Industrial [Member] | Tampa [Member] | Palm River North II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	634
Buildings and Improvements	[5]	4,418
Costs Capitalized Subsequent to Acquisition	[5]	399
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	634
Buildings and Improvements	[5]	4,817
Total	[5]	5,451
Accumulated Depreciation	[5]	$ 3,399
Year Acquired	[5]	1997/98
Year Constructed	[5]	1999
FLORIDA | Industrial [Member] | Tampa [Member] | Palm River South I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	655
Buildings and Improvements	[5]	3,187
Costs Capitalized Subsequent to Acquisition	[5]	655
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	655
Buildings and Improvements	[5]	3,842
Total	[5]	4,497
Accumulated Depreciation	[5]	$ 1,823
Year Acquired	[5]	2000
Year Constructed	[5]	2005
FLORIDA | Industrial [Member] | Tampa [Member] | Palm River South II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	655
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,417
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	655
Buildings and Improvements	[5]	4,417
Total	[5]	5,072
Accumulated Depreciation	[5]	$ 2,140
Year Acquired	[5]	2000
Year Constructed	[5]	2006
FLORIDA | Industrial [Member] | Tampa [Member] | Walden Distribution Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	337
Buildings and Improvements	[5]	3,318
Costs Capitalized Subsequent to Acquisition	[5]	625
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	337
Buildings and Improvements	[5]	3,943
Total	[5]	4,280
Accumulated Depreciation	[5]	$ 2,111
Year Acquired	[5]	1997/98
Year Constructed	[5]	2001
FLORIDA | Industrial [Member] | Tampa [Member] | Walden Distribution Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	465
Buildings and Improvements	[5]	3,738
Costs Capitalized Subsequent to Acquisition	[5]	1,479
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	465
Buildings and Improvements	[5]	5,217
Total	[5]	5,682
Accumulated Depreciation	[5]	$ 2,788
Year Acquired	[5]	1998
Year Constructed	[5]	1998
FLORIDA | Industrial [Member] | Tampa [Member] | Oak Creek Distribution Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,109
Buildings and Improvements	[5]	6,126
Costs Capitalized Subsequent to Acquisition	[5]	1,374
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,109
Buildings and Improvements	[5]	7,500
Total	[5]	8,609
Accumulated Depreciation	[5]	$ 4,020
Year Acquired	[5]	1998
Year Constructed	[5]	1998
FLORIDA | Industrial [Member] | Tampa [Member] | Oak Creek Distribution Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	647
Buildings and Improvements	[5]	3,603
Costs Capitalized Subsequent to Acquisition	[5]	1,670
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	647
Buildings and Improvements	[5]	5,273
Total	[5]	5,920
Accumulated Depreciation	[5]	$ 2,514
Year Acquired	[5]	2003
Year Constructed	[5]	2001
FLORIDA | Industrial [Member] | Tampa [Member] | Oak Creek Distribution Center III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	439
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,196
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	556
Buildings and Improvements	[5]	3,079
Total	[5]	3,635
Accumulated Depreciation	[5]	$ 1,171
Year Acquired	[5]	2005
Year Constructed	[5]	2007
FLORIDA | Industrial [Member] | Tampa [Member] | Oak Creek Distribution Center IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	682
Buildings and Improvements	[5]	6,472
Costs Capitalized Subsequent to Acquisition	[5]	773
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	682
Buildings and Improvements	[5]	7,245
Total	[5]	7,927
Accumulated Depreciation	[5]	$ 2,750
Year Acquired	[5]	2005
Year Constructed	[5]	2001
FLORIDA | Industrial [Member] | Tampa [Member] | Oak Creek Distribution Center V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	724
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,853
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	916
Buildings and Improvements	[5]	5,661
Total	[5]	6,577
Accumulated Depreciation	[5]	$ 2,260
Year Acquired	[5]	2005
Year Constructed	[5]	2007
FLORIDA | Industrial [Member] | Tampa [Member] | Oak Creek Distribution Center VI [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	642
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,241
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	812
Buildings and Improvements	[5]	5,071
Total	[5]	5,883
Accumulated Depreciation	[5]	$ 1,655
Year Acquired	[5]	2005
Year Constructed	[5]	2008
FLORIDA | Industrial [Member] | Tampa [Member] | Oak Creek Distribution Center VIII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	843
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,230
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,051
Buildings and Improvements	[5]	6,022
Total	[5]	7,073
Accumulated Depreciation	[5]	$ 425
Year Acquired	[5]	2005
Year Constructed	[5]	2015
FLORIDA | Industrial [Member] | Tampa [Member] | Oak Creek Distribution Center IX [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	618
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,963
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	781
Buildings and Improvements	[5]	4,800
Total	[5]	5,581
Accumulated Depreciation	[5]	$ 1,341
Year Acquired	[5]	2005
Year Constructed	[5]	2009
FLORIDA | Industrial [Member] | Tampa [Member] | Oak Creek Distribution Center A [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	185
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	1,493
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	185
Buildings and Improvements	[5]	1,493
Total	[5]	1,678
Accumulated Depreciation	[5]	$ 477
Year Acquired	[5]	2005
Year Constructed	[5]	2008
FLORIDA | Industrial [Member] | Tampa [Member] | Oak Creek Distribution Center B [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	227
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	1,549
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	227
Buildings and Improvements	[5]	1,549
Total	[5]	1,776
Accumulated Depreciation	[5]	$ 498
Year Acquired	[5]	2005
Year Constructed	[5]	2008
FLORIDA | Industrial [Member] | Tampa [Member] | Airport Commerce Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,257
Buildings and Improvements	[5]	4,012
Costs Capitalized Subsequent to Acquisition	[5]	937
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,257
Buildings and Improvements	[5]	4,949
Total	[5]	6,206
Accumulated Depreciation	[5]	$ 2,725
Year Acquired	[5]	1998
Year Constructed	[5]	1998
FLORIDA | Industrial [Member] | Tampa [Member] | Westlake Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,333
Buildings and Improvements	[5]	6,998
Costs Capitalized Subsequent to Acquisition	[5]	2,367
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,333
Buildings and Improvements	[5]	9,365
Total	[5]	10,698
Accumulated Depreciation	[5]	$ 5,409
Year Acquired	[5]	1998
Year Constructed	[5]	1998/99
FLORIDA | Industrial [Member] | Tampa [Member] | Expressway Commerce Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	915
Buildings and Improvements	[5]	5,346
Costs Capitalized Subsequent to Acquisition	[5]	1,372
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	915
Buildings and Improvements	[5]	6,718
Total	[5]	7,633
Accumulated Depreciation	[5]	$ 3,334
Year Acquired	[5]	2002
Year Constructed	[5]	2004
FLORIDA | Industrial [Member] | Tampa [Member] | Expressway Commerce Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,013
Buildings and Improvements	[5]	3,247
Costs Capitalized Subsequent to Acquisition	[5]	462
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,013
Buildings and Improvements	[5]	3,709
Total	[5]	4,722
Accumulated Depreciation	[5]	$ 1,934
Year Acquired	[5]	2003
Year Constructed	[5]	2001
FLORIDA | Industrial [Member] | Tampa [Member] | Silo Bend Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	4,131
Buildings and Improvements	[5]	27,497
Costs Capitalized Subsequent to Acquisition	[5]	1,635
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	4,132
Buildings and Improvements	[5]	29,131
Total	[5]	33,263
Accumulated Depreciation	[5]	$ 6,071
Year Acquired	[5]	2011
Year Constructed	[5]	1987/90
FLORIDA | Industrial [Member] | Tampa [Member] | Tampa East Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	791
Buildings and Improvements	[5]	4,758
Costs Capitalized Subsequent to Acquisition	[5]	513
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	791
Buildings and Improvements	[5]	5,271
Total	[5]	6,062
Accumulated Depreciation	[5]	$ 1,271
Year Acquired	[5]	2011
Year Constructed	[5]	1984
FLORIDA | Industrial [Member] | Tampa [Member] | Tampa West Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,139
Buildings and Improvements	[5]	8,502
Costs Capitalized Subsequent to Acquisition	[5]	1,145
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,140
Buildings and Improvements	[5]	9,646
Total	[5]	11,786
Accumulated Depreciation	[5]	$ 2,250
Year Acquired	[5]	2011
Year Constructed	[5]	1975/93/94
FLORIDA | Industrial [Member] | Tampa [Member] | Madison Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	495
Buildings and Improvements	[5]	2,779
Costs Capitalized Subsequent to Acquisition	[5]	428
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	495
Buildings and Improvements	[5]	3,207
Total	[5]	3,702
Accumulated Depreciation	[5]	$ 774
Year Acquired	[5]	2012
Year Constructed	[5]	2007
FLORIDA | Industrial [Member] | Tampa [Member] | Madison II & III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	624
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	7,004
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	624
Buildings and Improvements	[5]	7,004
Total	[5]	7,628
Accumulated Depreciation	[5]	$ 632
Year Acquired	[5]	2012
Year Constructed	[5]	2015
FLORIDA | Industrial [Member] | Tampa [Member] | Madison IV & V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	565
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	8,202
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	565
Buildings and Improvements	[5]	8,202
Total	[5]	8,767
Accumulated Depreciation	[5]	$ 271
Year Acquired	[5]	2012
Year Constructed	[5]	2016
FLORIDA | Industrial [Member] | Orlando [Member] | Chancellor Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	291
Buildings and Improvements	[5]	1,711
Costs Capitalized Subsequent to Acquisition	[5]	476
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	291
Buildings and Improvements	[5]	2,187
Total	[5]	2,478
Accumulated Depreciation	[5]	$ 1,272
Year Acquired	[5]	1996/97
Year Constructed	[5]	1996/97
FLORIDA | Industrial [Member] | Orlando [Member] | Exchange Distribution Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	603
Buildings and Improvements	[5]	2,414
Costs Capitalized Subsequent to Acquisition	[5]	2,275
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	603
Buildings and Improvements	[5]	4,689
Total	[5]	5,292
Accumulated Depreciation	[5]	$ 3,314
Year Acquired	[5]	1994
Year Constructed	[5]	1975
FLORIDA | Industrial [Member] | Orlando [Member] | Exchange Distribution Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	300
Buildings and Improvements	[5]	945
Costs Capitalized Subsequent to Acquisition	[5]	454
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	300
Buildings and Improvements	[5]	1,399
Total	[5]	1,699
Accumulated Depreciation	[5]	$ 810
Year Acquired	[5]	2002
Year Constructed	[5]	1976
FLORIDA | Industrial [Member] | Orlando [Member] | Exchange Distribution Center III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	320
Buildings and Improvements	[5]	997
Costs Capitalized Subsequent to Acquisition	[5]	403
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	320
Buildings and Improvements	[5]	1,400
Total	[5]	1,720
Accumulated Depreciation	[5]	$ 903
Year Acquired	[5]	2002
Year Constructed	[5]	1980
FLORIDA | Industrial [Member] | Orlando [Member] | Sunbelt Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,472
Buildings and Improvements	[5]	5,745
Costs Capitalized Subsequent to Acquisition	[5]	5,901
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,472
Buildings and Improvements	[5]	11,646
Total	[5]	13,118
Accumulated Depreciation	[5]	$ 8,622
Year Acquired	[5]	1989/97/98
Year Constructed	[5]	1974/87/97/98
FLORIDA | Industrial [Member] | Orlando [Member] | John Young Commerce Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	497
Buildings and Improvements	[5]	2,444
Costs Capitalized Subsequent to Acquisition	[5]	1,291
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	497
Buildings and Improvements	[5]	3,735
Total	[5]	4,232
Accumulated Depreciation	[5]	$ 2,082
Year Acquired	[5]	1997/98
Year Constructed	[5]	1997/98
FLORIDA | Industrial [Member] | Orlando [Member] | John Young Commerce Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	512
Buildings and Improvements	[5]	3,613
Costs Capitalized Subsequent to Acquisition	[5]	529
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	512
Buildings and Improvements	[5]	4,142
Total	[5]	4,654
Accumulated Depreciation	[5]	$ 2,632
Year Acquired	[5]	1998
Year Constructed	[5]	1999
FLORIDA | Industrial [Member] | Orlando [Member] | Altamonte Commerce Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,498
Buildings and Improvements	[5]	2,661
Costs Capitalized Subsequent to Acquisition	[5]	2,675
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,498
Buildings and Improvements	[5]	5,336
Total	[5]	6,834
Accumulated Depreciation	[5]	$ 3,856
Year Acquired	[5]	1999
Year Constructed	[5]	1980/82
FLORIDA | Industrial [Member] | Orlando [Member] | Altamonte Commerce Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	745
Buildings and Improvements	[5]	2,618
Costs Capitalized Subsequent to Acquisition	[5]	1,252
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	745
Buildings and Improvements	[5]	3,870
Total	[5]	4,615
Accumulated Depreciation	[5]	$ 2,212
Year Acquired	[5]	2003
Year Constructed	[5]	1975
FLORIDA | Industrial [Member] | Orlando [Member] | Sunport Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	555
Buildings and Improvements	[5]	1,977
Costs Capitalized Subsequent to Acquisition	[5]	1,011
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	555
Buildings and Improvements	[5]	2,988
Total	[5]	3,543
Accumulated Depreciation	[5]	$ 1,516
Year Acquired	[5]	1999
Year Constructed	[5]	1999
FLORIDA | Industrial [Member] | Orlando [Member] | Sunport Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	597
Buildings and Improvements	[5]	3,271
Costs Capitalized Subsequent to Acquisition	[5]	1,872
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	597
Buildings and Improvements	[5]	5,143
Total	[5]	5,740
Accumulated Depreciation	[5]	$ 3,379
Year Acquired	[5]	1999
Year Constructed	[5]	2001
FLORIDA | Industrial [Member] | Orlando [Member] | Sunport Center III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	642
Buildings and Improvements	[5]	3,121
Costs Capitalized Subsequent to Acquisition	[5]	1,032
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	642
Buildings and Improvements	[5]	4,153
Total	[5]	4,795
Accumulated Depreciation	[5]	$ 2,194
Year Acquired	[5]	1999
Year Constructed	[5]	2002
FLORIDA | Industrial [Member] | Orlando [Member] | Sunport Center IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	642
Buildings and Improvements	[5]	2,917
Costs Capitalized Subsequent to Acquisition	[5]	1,804
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	642
Buildings and Improvements	[5]	4,721
Total	[5]	5,363
Accumulated Depreciation	[5]	$ 2,324
Year Acquired	[5]	1999
Year Constructed	[5]	2004
FLORIDA | Industrial [Member] | Orlando [Member] | Sunport Center V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	750
Buildings and Improvements	[5]	2,509
Costs Capitalized Subsequent to Acquisition	[5]	2,385
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	750
Buildings and Improvements	[5]	4,894
Total	[5]	5,644
Accumulated Depreciation	[5]	$ 2,694
Year Acquired	[5]	1999
Year Constructed	[5]	2005
FLORIDA | Industrial [Member] | Orlando [Member] | Sunport Center VI [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	672
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,486
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	672
Buildings and Improvements	[5]	3,486
Total	[5]	4,158
Accumulated Depreciation	[5]	$ 1,358
Year Acquired	[5]	1999
Year Constructed	[5]	2006
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	373
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,829
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	373
Buildings and Improvements	[5]	4,829
Total	[5]	5,202
Accumulated Depreciation	[5]	$ 2,805
Year Acquired	[5]	2003
Year Constructed	[5]	2006
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	342
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,424
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	342
Buildings and Improvements	[5]	4,424
Total	[5]	4,766
Accumulated Depreciation	[5]	$ 2,195
Year Acquired	[5]	2003
Year Constructed	[5]	2007
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	547
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,543
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	547
Buildings and Improvements	[5]	5,543
Total	[5]	6,090
Accumulated Depreciation	[5]	$ 2,118
Year Acquired	[5]	2003
Year Constructed	[5]	2007
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 2,798
Initial Cost to the Company [Abstract]
Land	[5],[6]	506
Buildings and Improvements	[5],[6]	0
Costs Capitalized Subsequent to Acquisition	[5],[6]	4,632
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	506
Buildings and Improvements	[5],[6]	4,632
Total	[5],[6]	5,138
Accumulated Depreciation	[5],[6]	$ 1,842
Year Acquired	[5],[6]	2003
Year Constructed	[5],[6]	2006
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 2,660
Initial Cost to the Company [Abstract]
Land	[5],[6]	382
Buildings and Improvements	[5],[6]	0
Costs Capitalized Subsequent to Acquisition	[5],[6]	4,502
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	382
Buildings and Improvements	[5],[6]	4,502
Total	[5],[6]	4,884
Accumulated Depreciation	[5],[6]	$ 2,056
Year Acquired	[5],[6]	2003
Year Constructed	[5],[6]	2006
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park VI [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	571
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,284
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	571
Buildings and Improvements	[5]	5,284
Total	[5]	5,855
Accumulated Depreciation	[5]	$ 1,879
Year Acquired	[5]	2003
Year Constructed	[5]	2007
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park VII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	520
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,715
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	520
Buildings and Improvements	[5]	6,715
Total	[5]	7,235
Accumulated Depreciation	[5]	$ 2,354
Year Acquired	[5]	2003
Year Constructed	[5]	2008
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park VIII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	531
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,345
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	531
Buildings and Improvements	[5]	6,345
Total	[5]	6,876
Accumulated Depreciation	[5]	$ 1,902
Year Acquired	[5]	2003
Year Constructed	[5]	2008
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park IX [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	468
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,453
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	468
Buildings and Improvements	[5]	6,453
Total	[5]	6,921
Accumulated Depreciation	[5]	$ 1,415
Year Acquired	[5]	2003
Year Constructed	[5]	2012
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park X [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	414
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,867
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	414
Buildings and Improvements	[5]	4,867
Total	[5]	5,281
Accumulated Depreciation	[5]	$ 794
Year Acquired	[5]	2003
Year Constructed	[5]	2012
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park XI [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	513
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,927
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	513
Buildings and Improvements	[5]	5,927
Total	[5]	6,440
Accumulated Depreciation	[5]	$ 1,123
Year Acquired	[5]	2003
Year Constructed	[5]	2012
FLORIDA | Industrial [Member] | Orlando [Member] | Southridge Commerce Park XII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,025
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	16,896
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,025
Buildings and Improvements	[5]	16,896
Total	[5]	18,921
Accumulated Depreciation	[5]	$ 4,715
Year Acquired	[5]	2005
Year Constructed	[5]	2008
FLORIDA | Industrial [Member] | Orlando [Member] | Horizon I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	991
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,519
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	991
Buildings and Improvements	[5]	6,519
Total	[5]	7,510
Accumulated Depreciation	[5]	$ 898
Year Acquired	[5]	2008
Year Constructed	[5]	2014
FLORIDA | Industrial [Member] | Orlando [Member] | Horizon II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,111
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	7,197
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,111
Buildings and Improvements	[5]	7,197
Total	[5]	8,308
Accumulated Depreciation	[5]	$ 796
Year Acquired	[5]	2008
Year Constructed	[5]	2014
FLORIDA | Industrial [Member] | Orlando [Member] | Horizon III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	991
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,471
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	991
Buildings and Improvements	[5]	6,471
Total	[5]	7,462
Accumulated Depreciation	[5]	$ 490
Year Acquired	[5]	2008
Year Constructed	[5]	2016
FLORIDA | Industrial [Member] | Orlando [Member] | Horizon IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,097
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	8,549
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,097
Buildings and Improvements	[5]	8,549
Total	[5]	9,646
Accumulated Depreciation	[5]	$ 663
Year Acquired	[5]	2008
Year Constructed	[5]	2015
FLORIDA | Industrial [Member] | Orlando [Member] | Horizon V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,108
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	8,590
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,108
Buildings and Improvements	[5]	8,590
Total	[5]	9,698
Accumulated Depreciation	[5]	$ 209
Year Acquired	[5]	2008
Year Constructed	[5]	2017
FLORIDA | Industrial [Member] | Orlando [Member] | Horizon VII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	962
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	7,468
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	961
Buildings and Improvements	[5]	7,469
Total	[5]	8,430
Accumulated Depreciation	[5]	$ 233
Year Acquired	[5]	2008
Year Constructed	[5]	2017
FLORIDA | Industrial [Member] | Jacksonville [Member] | Deerwood Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,147
Buildings and Improvements	[5]	1,799
Costs Capitalized Subsequent to Acquisition	[5]	3,389
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,147
Buildings and Improvements	[5]	5,188
Total	[5]	6,335
Accumulated Depreciation	[5]	$ 3,181
Year Acquired	[5]	1989
Year Constructed	[5]	1978
FLORIDA | Industrial [Member] | Jacksonville [Member] | Phillips Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,375
Buildings and Improvements	[5]	2,961
Costs Capitalized Subsequent to Acquisition	[5]	4,414
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,375
Buildings and Improvements	[5]	7,375
Total	[5]	8,750
Accumulated Depreciation	[5]	$ 5,373
Year Acquired	[5]	1994
Year Constructed	[5]	1984/95
FLORIDA | Industrial [Member] | Jacksonville [Member] | Lake Pointe Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	3,442
Buildings and Improvements	[5]	6,450
Costs Capitalized Subsequent to Acquisition	[5]	8,272
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	3,442
Buildings and Improvements	[5]	14,722
Total	[5]	18,164
Accumulated Depreciation	[5]	$ 11,091
Year Acquired	[5]	1993
Year Constructed	[5]	1986/87
FLORIDA | Industrial [Member] | Jacksonville [Member] | Ellis Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	540
Buildings and Improvements	[5]	7,513
Costs Capitalized Subsequent to Acquisition	[5]	1,752
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	540
Buildings and Improvements	[5]	9,265
Total	[5]	9,805
Accumulated Depreciation	[5]	$ 4,770
Year Acquired	[5]	1997
Year Constructed	[5]	1977
FLORIDA | Industrial [Member] | Jacksonville [Member] | Westside Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,011
Buildings and Improvements	[5]	15,374
Costs Capitalized Subsequent to Acquisition	[5]	8,211
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,011
Buildings and Improvements	[5]	23,585
Total	[5]	25,596
Accumulated Depreciation	[5]	$ 12,109
Year Acquired	[5]	1997/2008
Year Constructed	[5]	1984/85
FLORIDA | Industrial [Member] | Jacksonville [Member] | Beach Commerce Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	476
Buildings and Improvements	[5]	1,899
Costs Capitalized Subsequent to Acquisition	[5]	678
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	476
Buildings and Improvements	[5]	2,577
Total	[5]	3,053
Accumulated Depreciation	[5]	$ 1,385
Year Acquired	[5]	2000
Year Constructed	[5]	2000
FLORIDA | Industrial [Member] | Jacksonville [Member] | Interstate Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,879
Buildings and Improvements	[5]	5,700
Costs Capitalized Subsequent to Acquisition	[5]	1,808
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,879
Buildings and Improvements	[5]	7,508
Total	[5]	9,387
Accumulated Depreciation	[5]	$ 4,012
Year Acquired	[5]	2005
Year Constructed	[5]	1990
FLORIDA | Industrial [Member] | Jacksonville [Member] | Flagler Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	7,317
Buildings and Improvements	[5]	14,912
Costs Capitalized Subsequent to Acquisition	[5]	28
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	7,317
Buildings and Improvements	[5]	14,940
Total	[5]	22,257
Accumulated Depreciation	[5]	$ 675
Year Acquired	[5]	2016
Year Constructed	[5]	1997/2005
FLORIDA | Industrial [Member] | Fort Lauderdale/Palm Beach area [Member] | Linpro Commerce Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	613
Buildings and Improvements	[5]	2,243
Costs Capitalized Subsequent to Acquisition	[5]	3,049
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	616
Buildings and Improvements	[5]	5,289
Total	[5]	5,905
Accumulated Depreciation	[5]	$ 3,382
Year Acquired	[5]	1996
Year Constructed	[5]	1986
FLORIDA | Industrial [Member] | Fort Lauderdale/Palm Beach area [Member] | Cypress Creek Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	0
Buildings and Improvements	[5]	2,465
Costs Capitalized Subsequent to Acquisition	[5]	1,892
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	0
Buildings and Improvements	[5]	4,357
Total	[5]	4,357
Accumulated Depreciation	[5]	$ 3,001
Year Acquired	[5]	1997
Year Constructed	[5]	1986
FLORIDA | Industrial [Member] | Fort Lauderdale/Palm Beach area [Member] | Lockhart Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	0
Buildings and Improvements	[5]	3,489
Costs Capitalized Subsequent to Acquisition	[5]	2,935
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	0
Buildings and Improvements	[5]	6,424
Total	[5]	6,424
Accumulated Depreciation	[5]	$ 4,291
Year Acquired	[5]	1997
Year Constructed	[5]	1986
FLORIDA | Industrial [Member] | Fort Lauderdale/Palm Beach area [Member] | Interstate Commerce Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	485
Buildings and Improvements	[5]	2,652
Costs Capitalized Subsequent to Acquisition	[5]	836
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	485
Buildings and Improvements	[5]	3,488
Total	[5]	3,973
Accumulated Depreciation	[5]	$ 2,308
Year Acquired	[5]	1998
Year Constructed	[5]	1988
FLORIDA | Industrial [Member] | Fort Lauderdale/Palm Beach area [Member] | Executive Airport Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 6,915
Initial Cost to the Company [Abstract]
Land	[5],[7]	1,991
Buildings and Improvements	[5],[7]	4,857
Costs Capitalized Subsequent to Acquisition	[5],[7]	5,265
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	1,991
Buildings and Improvements	[5],[7]	10,122
Total	[5],[7]	12,113
Accumulated Depreciation	[5],[7]	$ 4,879
Year Acquired	[5],[7]	2001
Year Constructed	[5],[7]	2004/06
FLORIDA | Industrial [Member] | Fort Lauderdale/Palm Beach area [Member] | Sample 95 Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,202
Buildings and Improvements	[5]	8,785
Costs Capitalized Subsequent to Acquisition	[5]	3,524
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,202
Buildings and Improvements	[5]	12,309
Total	[5]	14,511
Accumulated Depreciation	[5]	$ 7,917
Year Acquired	[5]	1996/98
Year Constructed	[5]	1990/99
FLORIDA | Industrial [Member] | Fort Lauderdale/Palm Beach area [Member] | Blue Heron Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	975
Buildings and Improvements	[5]	3,626
Costs Capitalized Subsequent to Acquisition	[5]	1,961
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	975
Buildings and Improvements	[5]	5,587
Total	[5]	6,562
Accumulated Depreciation	[5]	$ 3,572
Year Acquired	[5]	1999
Year Constructed	[5]	1986
FLORIDA | Industrial [Member] | Fort Lauderdale/Palm Beach area [Member] | Blue Heron Distribution Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 409
Initial Cost to the Company [Abstract]
Land	[5]	1,385
Buildings and Improvements	[5]	4,222
Costs Capitalized Subsequent to Acquisition	[5]	1,333
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,385
Buildings and Improvements	[5]	5,555
Total	[5]	6,940
Accumulated Depreciation	[5]	$ 2,515
Year Acquired	[5]	2004
Year Constructed	[5]	1988
FLORIDA | Industrial [Member] | Fort Lauderdale/Palm Beach area [Member] | Blue Heron Distribution Center III
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	450
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	2,683
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	450
Buildings and Improvements	[5]	2,683
Total	[5]	3,133
Accumulated Depreciation	[5]	$ 904
Year Acquired	[5]	2004
Year Constructed	[5]	2009
FLORIDA | Industrial [Member] | Fort Myers [Member] | SunCoast Commerce Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	911
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,809
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	928
Buildings and Improvements	[5]	4,792
Total	[5]	5,720
Accumulated Depreciation	[5]	$ 1,754
Year Acquired	[5]	2005
Year Constructed	[5]	2008
FLORIDA | Industrial [Member] | Fort Myers [Member] | SunCoast Commerce Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	911
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,993
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	928
Buildings and Improvements	[5]	4,976
Total	[5]	5,904
Accumulated Depreciation	[5]	$ 2,005
Year Acquired	[5]	2005
Year Constructed	[5]	2007
FLORIDA | Industrial [Member] | Fort Myers [Member] | SunCoast Commerce Center III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,720
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,665
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,763
Buildings and Improvements	[5]	6,622
Total	[5]	8,385
Accumulated Depreciation	[5]	$ 2,216
Year Acquired	[5]	2006
Year Constructed	[5]	2008
FLORIDA | Industrial Development [Member] | Oak Creek VII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	740
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	5,391
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	740
Buildings and Improvements	[4]	5,391
Total	[4]	6,131
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2005
Year Constructed	[4]	2017
FLORIDA | Industrial Development [Member] | Oak Creek land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	486
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	1,074
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	707
Buildings and Improvements	[4]	853
Total	[4]	1,560
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2005
Year Constructed	[4]	n/a
FLORIDA | Industrial Development [Member] | Horizon X [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	846
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	2,704
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	846
Buildings and Improvements	[4]	2,704
Total	[4]	3,550
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2009
Year Constructed	[4]	n/a
FLORIDA | Industrial Development [Member] | Horizon XII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,416
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	9,814
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	1,416
Buildings and Improvements	[4]	9,814
Total	[4]	11,230
Accumulated Depreciation	[4]	$ 14
Year Acquired	[4]	2008
Year Constructed	[4]	2017
FLORIDA | Industrial Development [Member] | Horizon land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	4,439
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	6,681
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	4,440
Buildings and Improvements	[4]	6,680
Total	[4]	11,120
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2008/09
Year Constructed	[4]	n/a
FLORIDA | Industrial Development [Member] | SunCoast 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,733
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	7,387
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	1,762
Buildings and Improvements	[4]	7,358
Total	[4]	9,120
Accumulated Depreciation	[4]	$ 56
Year Acquired	[4]	2006
Year Constructed	[4]	2017
FLORIDA | Industrial Development [Member] | SunCoast land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	9,159
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	4,953
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	9,343
Buildings and Improvements	[4]	4,769
Total	[4]	14,112
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2006
Year Constructed	[4]	n/a
FLORIDA | Industrial Development [Member] | Weston [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	4,163
Buildings and Improvements	[4]	9,951
Costs Capitalized Subsequent to Acquisition	[4]	1,406
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	4,163
Buildings and Improvements	[4]	11,357
Total	[4]	15,520
Accumulated Depreciation	[4]	$ 231
Year Acquired	[4]	2016
Year Constructed	[4]	1998
FLORIDA | Industrial Development [Member] | Gateway Commerce Park land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	26,728
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	4,148
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	26,878
Buildings and Improvements	[4]	3,998
Total	[4]	30,876
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2016
Year Constructed	[4]	n/a
CALIFORNIA | Industrial [Member] | San Francisco area [Member] | Wiegman Distribution Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,197
Buildings and Improvements	[5]	8,788
Costs Capitalized Subsequent to Acquisition	[5]	2,105
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,308
Buildings and Improvements	[5]	10,782
Total	[5]	13,090
Accumulated Depreciation	[5]	$ 6,211
Year Acquired	[5]	1996
Year Constructed	[5]	1986/87
CALIFORNIA | Industrial [Member] | San Francisco area [Member] | Wiegman Distribution Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,579
Buildings and Improvements	[5]	4,316
Costs Capitalized Subsequent to Acquisition	[5]	152
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,579
Buildings and Improvements	[5]	4,468
Total	[5]	7,047
Accumulated Depreciation	[5]	$ 695
Year Acquired	[5]	2012
Year Constructed	[5]	1998
CALIFORNIA | Industrial [Member] | San Francisco area [Member] | Huntwood Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	3,842
Buildings and Improvements	[5]	15,368
Costs Capitalized Subsequent to Acquisition	[5]	3,109
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	3,842
Buildings and Improvements	[5]	18,477
Total	[5]	22,319
Accumulated Depreciation	[5]	$ 10,819
Year Acquired	[5]	1996
Year Constructed	[5]	1988
CALIFORNIA | Industrial [Member] | San Francisco area [Member] | San Clemente Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	893
Buildings and Improvements	[5]	2,004
Costs Capitalized Subsequent to Acquisition	[5]	932
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	893
Buildings and Improvements	[5]	2,936
Total	[5]	3,829
Accumulated Depreciation	[5]	$ 1,846
Year Acquired	[5]	1997
Year Constructed	[5]	1978
CALIFORNIA | Industrial [Member] | San Francisco area [Member] | Yosemite Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	259
Buildings and Improvements	[5]	7,058
Costs Capitalized Subsequent to Acquisition	[5]	1,344
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	259
Buildings and Improvements	[5]	8,402
Total	[5]	8,661
Accumulated Depreciation	[5]	$ 4,670
Year Acquired	[5]	1999
Year Constructed	[5]	1974/87
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Kingsview Industrial Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[8]	$ 2,455
Initial Cost to the Company [Abstract]
Land	[5],[8]	643
Buildings and Improvements	[5],[8]	2,573
Costs Capitalized Subsequent to Acquisition	[5],[8]	892
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[8]	643
Buildings and Improvements	[5],[8]	3,465
Total	[5],[8]	4,108
Accumulated Depreciation	[5],[8]	$ 1,949
Year Acquired	[5],[8]	1996
Year Constructed	[5],[8]	1980
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Dominguez Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[8]	$ 6,693
Initial Cost to the Company [Abstract]
Land	[5],[8]	2,006
Buildings and Improvements	[5],[8]	8,025
Costs Capitalized Subsequent to Acquisition	[5],[8]	1,170
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[8]	2,006
Buildings and Improvements	[5],[8]	9,195
Total	[5],[8]	11,201
Accumulated Depreciation	[5],[8]	$ 5,525
Year Acquired	[5],[8]	1996
Year Constructed	[5],[8]	1977
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Main Street Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,606
Buildings and Improvements	[5]	4,103
Costs Capitalized Subsequent to Acquisition	[5]	831
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,606
Buildings and Improvements	[5]	4,934
Total	[5]	6,540
Accumulated Depreciation	[5]	$ 2,757
Year Acquired	[5]	1999
Year Constructed	[5]	1999
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Walnut Business Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[8]	$ 6,352
Initial Cost to the Company [Abstract]
Land	[5],[8]	2,885
Buildings and Improvements	[5],[8]	5,274
Costs Capitalized Subsequent to Acquisition	[5],[8]	2,471
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[8]	2,885
Buildings and Improvements	[5],[8]	7,745
Total	[5],[8]	10,630
Accumulated Depreciation	[5],[8]	$ 4,113
Year Acquired	[5],[8]	1996
Year Constructed	[5],[8]	1966/90
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Washington Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[8]	$ 4,321
Initial Cost to the Company [Abstract]
Land	[5],[8]	1,636
Buildings and Improvements	[5],[8]	4,900
Costs Capitalized Subsequent to Acquisition	[5],[8]	695
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[8]	1,636
Buildings and Improvements	[5],[8]	5,595
Total	[5],[8]	7,231
Accumulated Depreciation	[5],[8]	$ 3,133
Year Acquired	[5],[8]	1997
Year Constructed	[5],[8]	1996/97
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Chino Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,544
Buildings and Improvements	[5]	10,175
Costs Capitalized Subsequent to Acquisition	[5]	1,623
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,544
Buildings and Improvements	[5]	11,798
Total	[5]	14,342
Accumulated Depreciation	[5]	$ 7,929
Year Acquired	[5]	1998
Year Constructed	[5]	1980
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Ramona Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 2,572
Initial Cost to the Company [Abstract]
Land	[5]	3,761
Buildings and Improvements	[5]	5,751
Costs Capitalized Subsequent to Acquisition	[5]	3
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	3,761
Buildings and Improvements	[5]	5,754
Total	[5]	9,515
Accumulated Depreciation	[5]	$ 488
Year Acquired	[5]	2014
Year Constructed	[5]	1984
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Industry Distribution Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[8]	$ 16,148
Initial Cost to the Company [Abstract]
Land	[5],[8]	10,230
Buildings and Improvements	[5],[8]	12,373
Costs Capitalized Subsequent to Acquisition	[5],[8]	4,418
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[8]	10,230
Buildings and Improvements	[5],[8]	16,791
Total	[5],[8]	27,021
Accumulated Depreciation	[5],[8]	$ 8,796
Year Acquired	[5],[8]	1998
Year Constructed	[5],[8]	1959
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Industry Distribution Center III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[8]	$ 1,706
Initial Cost to the Company [Abstract]
Land	[5],[8]	0
Buildings and Improvements	[5],[8]	3,012
Costs Capitalized Subsequent to Acquisition	[5],[8]	(157)
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[8]	0
Buildings and Improvements	[5],[8]	2,855
Total	[5],[8]	2,855
Accumulated Depreciation	[5],[8]	$ 2,855
Year Acquired	[5],[8]	2007
Year Constructed	[5],[8]	1992
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Chestnut Business Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,674
Buildings and Improvements	[5]	3,465
Costs Capitalized Subsequent to Acquisition	[5]	284
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,674
Buildings and Improvements	[5]	3,749
Total	[5]	5,423
Accumulated Depreciation	[5]	$ 1,902
Year Acquired	[5]	1998
Year Constructed	[5]	1999
CALIFORNIA | Industrial [Member] | Los Angeles area [Member] | Los Angeles Corporate Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,363
Buildings and Improvements	[5]	5,453
Costs Capitalized Subsequent to Acquisition	[5]	3,214
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,363
Buildings and Improvements	[5]	8,667
Total	[5]	10,030
Accumulated Depreciation	[5]	$ 5,807
Year Acquired	[5]	1996
Year Constructed	[5]	1986
CALIFORNIA | Industrial [Member] | Santa Barbara [Member] | University Business Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	5,517
Buildings and Improvements	[5]	22,067
Costs Capitalized Subsequent to Acquisition	[5]	8,225
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	5,520
Buildings and Improvements	[5]	30,289
Total	[5]	35,809
Accumulated Depreciation	[5]	$ 17,119
Year Acquired	[5]	1996
Year Constructed	[5]	1987/88
CALIFORNIA | Industrial [Member] | Fresno [Member] | Shaw Commerce Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[8]	$ 11,905
Initial Cost to the Company [Abstract]
Land	[5],[8]	2,465
Buildings and Improvements	[5],[8]	11,627
Costs Capitalized Subsequent to Acquisition	[5],[8]	5,830
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[8]	2,465
Buildings and Improvements	[5],[8]	17,457
Total	[5],[8]	19,922
Accumulated Depreciation	[5],[8]	$ 10,711
Year Acquired	[5],[8]	1998
Year Constructed	[5],[8]	1978/81/87
CALIFORNIA | Industrial [Member] | San Diego [Member] | Eastlake Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	3,046
Buildings and Improvements	[5]	6,888
Costs Capitalized Subsequent to Acquisition	[5]	1,786
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	3,046
Buildings and Improvements	[5]	8,674
Total	[5]	11,720
Accumulated Depreciation	[5]	$ 5,279
Year Acquired	[5]	1997
Year Constructed	[5]	1989
CALIFORNIA | Industrial [Member] | San Diego [Member] | Ocean View Corporate Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 8,358
Initial Cost to the Company [Abstract]
Land	[5],[7]	6,577
Buildings and Improvements	[5],[7]	7,105
Costs Capitalized Subsequent to Acquisition	[5],[7]	957
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	6,577
Buildings and Improvements	[5],[7]	8,062
Total	[5],[7]	14,639
Accumulated Depreciation	[5],[7]	$ 2,638
Year Acquired	[5],[7]	2010
Year Constructed	[5],[7]	2005
TEXAS | Industrial [Member] | Dallas [Member] | Interstate Distribution Center I and II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 5,447
Initial Cost to the Company [Abstract]
Land	[5],[9]	1,746
Buildings and Improvements	[5],[9]	4,941
Costs Capitalized Subsequent to Acquisition	[5],[9]	3,628
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	1,746
Buildings and Improvements	[5],[9]	8,569
Total	[5],[9]	10,315
Accumulated Depreciation	[5],[9]	$ 6,223
Year Acquired	[5],[9]	1988
Year Constructed	[5],[9]	1978
TEXAS | Industrial [Member] | Dallas [Member] | Interstate Distribution Center III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 2,163
Initial Cost to the Company [Abstract]
Land	[5],[9]	519
Buildings and Improvements	[5],[9]	2,008
Costs Capitalized Subsequent to Acquisition	[5],[9]	1,570
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	519
Buildings and Improvements	[5],[9]	3,578
Total	[5],[9]	4,097
Accumulated Depreciation	[5],[9]	$ 2,082
Year Acquired	[5],[9]	2000
Year Constructed	[5],[9]	1979
TEXAS | Industrial [Member] | Dallas [Member] | Interstate Distribution Center IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	416
Buildings and Improvements	[5]	2,481
Costs Capitalized Subsequent to Acquisition	[5]	535
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	416
Buildings and Improvements	[5]	3,016
Total	[5]	3,432
Accumulated Depreciation	[5]	$ 1,541
Year Acquired	[5]	2004
Year Constructed	[5]	2002
TEXAS | Industrial [Member] | Dallas [Member] | Interstate Distribution Center V, VI, VII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 4,424
Initial Cost to the Company [Abstract]
Land	[5],[6]	1,824
Buildings and Improvements	[5],[6]	4,106
Costs Capitalized Subsequent to Acquisition	[5],[6]	2,190
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	1,824
Buildings and Improvements	[5],[6]	6,296
Total	[5],[6]	8,120
Accumulated Depreciation	[5],[6]	$ 2,974
Year Acquired	[5],[6]	2009
Year Constructed	[5],[6]	1979/80/81
TEXAS | Industrial [Member] | Dallas [Member] | Venture Warehouses [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 4,155
Initial Cost to the Company [Abstract]
Land	[5],[9]	1,452
Buildings and Improvements	[5],[9]	3,762
Costs Capitalized Subsequent to Acquisition	[5],[9]	2,654
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	1,452
Buildings and Improvements	[5],[9]	6,416
Total	[5],[9]	7,868
Accumulated Depreciation	[5],[9]	$ 5,126
Year Acquired	[5],[9]	1988
Year Constructed	[5],[9]	1979
TEXAS | Industrial [Member] | Dallas [Member] | ParkView 1-3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,663
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	18,452
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,663
Buildings and Improvements	[5]	18,452
Total	[5]	21,115
Accumulated Depreciation	[5]	$ 998
Year Acquired	[5]	2014
Year Constructed	[5]	2015
TEXAS | Industrial [Member] | Dallas [Member] | Shady Trail Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	635
Buildings and Improvements	[5]	3,621
Costs Capitalized Subsequent to Acquisition	[5]	1,255
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	635
Buildings and Improvements	[5]	4,876
Total	[5]	5,511
Accumulated Depreciation	[5]	$ 2,397
Year Acquired	[5]	2003
Year Constructed	[5]	1998
TEXAS | Industrial [Member] | Dallas [Member] | Valwood Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	4,361
Buildings and Improvements	[5]	34,405
Costs Capitalized Subsequent to Acquisition	[5]	3,027
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	4,361
Buildings and Improvements	[5]	37,432
Total	[5]	41,793
Accumulated Depreciation	[5]	$ 7,806
Year Acquired	[5]	2012
Year Constructed	[5]	1986/87/97/98
TEXAS | Industrial [Member] | Dallas [Member] | Northfield Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	12,470
Buildings and Improvements	[5]	50,713
Costs Capitalized Subsequent to Acquisition	[5]	2,973
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	12,470
Buildings and Improvements	[5]	53,686
Total	[5]	66,156
Accumulated Depreciation	[5]	$ 11,119
Year Acquired	[5]	2013
Year Constructed	[5]	1999-2001/03/04/08
TEXAS | Industrial [Member] | Dallas [Member] | Parc North 1-4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	4,615
Buildings and Improvements	[5]	26,358
Costs Capitalized Subsequent to Acquisition	[5]	4,482
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	4,615
Buildings and Improvements	[5]	30,840
Total	[5]	35,455
Accumulated Depreciation	[5]	$ 998
Year Acquired	[5]	2016
Year Constructed	[5]	2016
TEXAS | Industrial [Member] | Dallas [Member] | CreekView 121 1&2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	3,275
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	14,568
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	3,275
Buildings and Improvements	[5]	14,568
Total	[5]	17,843
Accumulated Depreciation	[5]	$ 310
Year Acquired	[5]	2015/16
Year Constructed	[5]	2017
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 1 and 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	660
Buildings and Improvements	[5]	5,893
Costs Capitalized Subsequent to Acquisition	[5]	2,066
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	660
Buildings and Improvements	[5]	7,959
Total	[5]	8,619
Accumulated Depreciation	[5]	$ 4,714
Year Acquired	[5]	1998
Year Constructed	[5]	1996
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 3, 4 and 5 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 4,730
Initial Cost to the Company [Abstract]
Land	[5],[9]	1,025
Buildings and Improvements	[5],[9]	6,413
Costs Capitalized Subsequent to Acquisition	[5],[9]	1,518
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	1,025
Buildings and Improvements	[5],[9]	7,931
Total	[5],[9]	8,956
Accumulated Depreciation	[5],[9]	$ 4,700
Year Acquired	[5],[9]	1998
Year Constructed	[5],[9]	1998
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 6 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 1,850
Initial Cost to the Company [Abstract]
Land	[5],[9]	425
Buildings and Improvements	[5],[9]	2,423
Costs Capitalized Subsequent to Acquisition	[5],[9]	655
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	425
Buildings and Improvements	[5],[9]	3,078
Total	[5],[9]	3,503
Accumulated Depreciation	[5],[9]	$ 1,833
Year Acquired	[5],[9]	1998
Year Constructed	[5],[9]	1998
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 7 and 8 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 5,392
Initial Cost to the Company [Abstract]
Land	[5],[9]	680
Buildings and Improvements	[5],[9]	4,584
Costs Capitalized Subsequent to Acquisition	[5],[9]	4,947
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	680
Buildings and Improvements	[5],[9]	9,531
Total	[5],[9]	10,211
Accumulated Depreciation	[5],[9]	$ 5,580
Year Acquired	[5],[9]	1998
Year Constructed	[5],[9]	1998
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 9 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 3,750
Initial Cost to the Company [Abstract]
Land	[5],[9]	800
Buildings and Improvements	[5],[9]	4,355
Costs Capitalized Subsequent to Acquisition	[5],[9]	1,945
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	800
Buildings and Improvements	[5],[9]	6,300
Total	[5],[9]	7,100
Accumulated Depreciation	[5],[9]	$ 2,986
Year Acquired	[5],[9]	1998
Year Constructed	[5],[9]	1998
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 10 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	933
Buildings and Improvements	[5]	4,779
Costs Capitalized Subsequent to Acquisition	[5]	599
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	933
Buildings and Improvements	[5]	5,378
Total	[5]	6,311
Accumulated Depreciation	[5]	$ 2,601
Year Acquired	[5]	2001
Year Constructed	[5]	1999
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 11 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	638
Buildings and Improvements	[5]	3,764
Costs Capitalized Subsequent to Acquisition	[5]	1,316
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	638
Buildings and Improvements	[5]	5,080
Total	[5]	5,718
Accumulated Depreciation	[5]	$ 2,771
Year Acquired	[5]	1999
Year Constructed	[5]	1999
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 12 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	340
Buildings and Improvements	[5]	2,419
Costs Capitalized Subsequent to Acquisition	[5]	383
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	340
Buildings and Improvements	[5]	2,802
Total	[5]	3,142
Accumulated Depreciation	[5]	$ 1,608
Year Acquired	[5]	2000
Year Constructed	[5]	2002
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 13 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	282
Buildings and Improvements	[5]	2,569
Costs Capitalized Subsequent to Acquisition	[5]	417
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	282
Buildings and Improvements	[5]	2,986
Total	[5]	3,268
Accumulated Depreciation	[5]	$ 1,923
Year Acquired	[5]	2000
Year Constructed	[5]	2002
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 14 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	722
Buildings and Improvements	[5]	2,629
Costs Capitalized Subsequent to Acquisition	[5]	1,027
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	722
Buildings and Improvements	[5]	3,656
Total	[5]	4,378
Accumulated Depreciation	[5]	$ 1,782
Year Acquired	[5]	2000
Year Constructed	[5]	2003
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 15 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	731
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,266
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	731
Buildings and Improvements	[5]	6,266
Total	[5]	6,997
Accumulated Depreciation	[5]	$ 3,237
Year Acquired	[5]	2000
Year Constructed	[5]	2007
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 16 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	519
Buildings and Improvements	[5]	4,248
Costs Capitalized Subsequent to Acquisition	[5]	1,493
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	519
Buildings and Improvements	[5]	5,741
Total	[5]	6,260
Accumulated Depreciation	[5]	$ 3,175
Year Acquired	[5]	2000
Year Constructed	[5]	2005
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 17 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	373
Buildings and Improvements	[5]	1,945
Costs Capitalized Subsequent to Acquisition	[5]	799
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	373
Buildings and Improvements	[5]	2,744
Total	[5]	3,117
Accumulated Depreciation	[5]	$ 1,382
Year Acquired	[5]	2000
Year Constructed	[5]	2004
TEXAS | Industrial [Member] | Houston [Member] | World Houston International Business Ctr 18 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	323
Buildings and Improvements	[5]	1,512
Costs Capitalized Subsequent to Acquisition	[5]	259
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	323
Buildings and Improvements	[5]	1,771
Total	[5]	2,094
Accumulated Depreciation	[5]	$ 883
Year Acquired	[5]	2005
Year Constructed	[5]	1995
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 19 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	373
Buildings and Improvements	[5]	2,256
Costs Capitalized Subsequent to Acquisition	[5]	1,126
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	373
Buildings and Improvements	[5]	3,382
Total	[5]	3,755
Accumulated Depreciation	[5]	$ 1,946
Year Acquired	[5]	2000
Year Constructed	[5]	2004
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 20 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,008
Buildings and Improvements	[5]	1,948
Costs Capitalized Subsequent to Acquisition	[5]	2,060
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,008
Buildings and Improvements	[5]	4,008
Total	[5]	5,016
Accumulated Depreciation	[5]	$ 1,976
Year Acquired	[5]	2000
Year Constructed	[5]	2004
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 21 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	436
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,942
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	436
Buildings and Improvements	[5]	3,942
Total	[5]	4,378
Accumulated Depreciation	[5]	$ 1,492
Year Acquired	[5]	2000/03
Year Constructed	[5]	2006
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 22 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	436
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,542
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	436
Buildings and Improvements	[5]	4,542
Total	[5]	4,978
Accumulated Depreciation	[5]	$ 2,111
Year Acquired	[5]	2000
Year Constructed	[5]	2007
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 23 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	910
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	7,347
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	910
Buildings and Improvements	[5]	7,347
Total	[5]	8,257
Accumulated Depreciation	[5]	$ 2,989
Year Acquired	[5]	2000
Year Constructed	[5]	2007
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 24 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	837
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,883
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	837
Buildings and Improvements	[5]	5,883
Total	[5]	6,720
Accumulated Depreciation	[5]	$ 2,354
Year Acquired	[5]	2005
Year Constructed	[5]	2008
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 25 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	508
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,882
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	508
Buildings and Improvements	[5]	3,882
Total	[5]	4,390
Accumulated Depreciation	[5]	$ 1,454
Year Acquired	[5]	2005
Year Constructed	[5]	2008
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 26 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 2,077
Initial Cost to the Company [Abstract]
Land	[5],[7]	445
Buildings and Improvements	[5],[7]	0
Costs Capitalized Subsequent to Acquisition	[5],[7]	3,194
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	445
Buildings and Improvements	[5],[7]	3,194
Total	[5],[7]	3,639
Accumulated Depreciation	[5],[7]	$ 1,124
Year Acquired	[5],[7]	2005
Year Constructed	[5],[7]	2008
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 27 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	837
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,004
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	837
Buildings and Improvements	[5]	5,004
Total	[5]	5,841
Accumulated Depreciation	[5]	$ 1,782
Year Acquired	[5]	2005
Year Constructed	[5]	2008
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 28 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 2,977
Initial Cost to the Company [Abstract]
Land	[5],[7]	550
Buildings and Improvements	[5],[7]	0
Costs Capitalized Subsequent to Acquisition	[5],[7]	4,665
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	550
Buildings and Improvements	[5],[7]	4,665
Total	[5],[7]	5,215
Accumulated Depreciation	[5],[7]	$ 1,559
Year Acquired	[5],[7]	2005
Year Constructed	[5],[7]	2009
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 29 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 2,810
Initial Cost to the Company [Abstract]
Land	[5],[7]	782
Buildings and Improvements	[5],[7]	0
Costs Capitalized Subsequent to Acquisition	[5],[7]	4,141
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	974
Buildings and Improvements	[5],[7]	3,949
Total	[5],[7]	4,923
Accumulated Depreciation	[5],[7]	$ 1,247
Year Acquired	[5],[7]	2007
Year Constructed	[5],[7]	2009
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 30 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 3,870
Initial Cost to the Company [Abstract]
Land	[5],[7]	981
Buildings and Improvements	[5],[7]	0
Costs Capitalized Subsequent to Acquisition	[5],[7]	5,798
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	1,222
Buildings and Improvements	[5],[7]	5,557
Total	[5],[7]	6,779
Accumulated Depreciation	[5],[7]	$ 2,079
Year Acquired	[5],[7]	2007
Year Constructed	[5],[7]	2009
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr31a Member
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	684
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,087
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	684
Buildings and Improvements	[5]	4,087
Total	[5]	4,771
Accumulated Depreciation	[5]	$ 1,567
Year Acquired	[5]	2008
Year Constructed	[5]	2011
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 31B [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	546
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,539
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	546
Buildings and Improvements	[5]	3,539
Total	[5]	4,085
Accumulated Depreciation	[5]	$ 1,069
Year Acquired	[5]	2008
Year Constructed	[5]	2012
TEXAS | Industrial [Member] | Houston [Member] | World Houston Intl Business Ctr 32 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 3,747
Initial Cost to the Company [Abstract]
Land	[5],[6]	1,225
Buildings and Improvements	[5],[6]	0
Costs Capitalized Subsequent to Acquisition	[5],[6]	5,655
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	1,526
Buildings and Improvements	[5],[6]	5,354
Total	[5],[6]	6,880
Accumulated Depreciation	[5],[6]	$ 1,244
Year Acquired	[5],[6]	2007
Year Constructed	[5],[6]	2012
TEXAS | Industrial [Member] | Houston [Member] | World Houston 33 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,166
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	7,867
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,166
Buildings and Improvements	[5]	7,867
Total	[5]	9,033
Accumulated Depreciation	[5]	$ 1,401
Year Acquired	[5]	2011
Year Constructed	[5]	2013
TEXAS | Industrial [Member] | Houston [Member] | World Houston 34 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	439
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,373
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	439
Buildings and Improvements	[5]	3,373
Total	[5]	3,812
Accumulated Depreciation	[5]	$ 683
Year Acquired	[5]	2005
Year Constructed	[5]	2012
TEXAS | Industrial [Member] | Houston [Member] | World Houston 35 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	340
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	2,475
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	340
Buildings and Improvements	[5]	2,475
Total	[5]	2,815
Accumulated Depreciation	[5]	$ 419
Year Acquired	[5]	2005
Year Constructed	[5]	2012
TEXAS | Industrial [Member] | Houston [Member] | World Houston 36 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	684
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,882
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	684
Buildings and Improvements	[5]	4,882
Total	[5]	5,566
Accumulated Depreciation	[5]	$ 913
Year Acquired	[5]	2011
Year Constructed	[5]	2013
TEXAS | Industrial [Member] | Houston [Member] | World Houston 37 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	759
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,400
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	759
Buildings and Improvements	[5]	6,400
Total	[5]	7,159
Accumulated Depreciation	[5]	$ 1,144
Year Acquired	[5]	2011
Year Constructed	[5]	2013
TEXAS | Industrial [Member] | Houston [Member] | World Houston 38 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,053
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	7,320
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,053
Buildings and Improvements	[5]	7,320
Total	[5]	8,373
Accumulated Depreciation	[5]	$ 1,346
Year Acquired	[5]	2011
Year Constructed	[5]	2013
TEXAS | Industrial [Member] | Houston [Member] | World Houston 39 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	620
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,202
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	620
Buildings and Improvements	[5]	5,202
Total	[5]	5,822
Accumulated Depreciation	[5]	$ 611
Year Acquired	[5]	2011
Year Constructed	[5]	2014
TEXAS | Industrial [Member] | Houston [Member] | World Houston 40 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,072
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	9,347
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,072
Buildings and Improvements	[5]	9,347
Total	[5]	10,419
Accumulated Depreciation	[5]	$ 1,028
Year Acquired	[5]	2011
Year Constructed	[5]	2014
TEXAS | Industrial [Member] | Houston [Member] | World Houston 41 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	649
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,950
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	649
Buildings and Improvements	[5]	5,950
Total	[5]	6,599
Accumulated Depreciation	[5]	$ 572
Year Acquired	[5]	2011
Year Constructed	[5]	2014
TEXAS | Industrial [Member] | Houston [Member] | World Houston 42 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	571
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,814
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	571
Buildings and Improvements	[5]	4,814
Total	[5]	5,385
Accumulated Depreciation	[5]	$ 409
Year Acquired	[5]	2011
Year Constructed	[5]	2015
TEXAS | Industrial [Member] | Houston [Member] | Central Green Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	566
Buildings and Improvements	[5]	4,031
Costs Capitalized Subsequent to Acquisition	[5]	794
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	566
Buildings and Improvements	[5]	4,825
Total	[5]	5,391
Accumulated Depreciation	[5]	$ 2,356
Year Acquired	[5]	1999
Year Constructed	[5]	1998
TEXAS | Industrial [Member] | Houston [Member] | Glenmont Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	936
Buildings and Improvements	[5]	6,161
Costs Capitalized Subsequent to Acquisition	[5]	2,958
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	936
Buildings and Improvements	[5]	9,119
Total	[5]	10,055
Accumulated Depreciation	[5]	$ 5,416
Year Acquired	[5]	1998
Year Constructed	[5]	1999/2000
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	458
Buildings and Improvements	[5]	5,712
Costs Capitalized Subsequent to Acquisition	[5]	2,737
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	458
Buildings and Improvements	[5]	8,449
Total	[5]	8,907
Accumulated Depreciation	[5]	$ 4,436
Year Acquired	[5]	2002
Year Constructed	[5]	2001
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	415
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	2,997
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	415
Buildings and Improvements	[5]	2,997
Total	[5]	3,412
Accumulated Depreciation	[5]	$ 1,268
Year Acquired	[5]	2005
Year Constructed	[5]	2007
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	460
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,124
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	460
Buildings and Improvements	[5]	3,124
Total	[5]	3,584
Accumulated Depreciation	[5]	$ 1,371
Year Acquired	[5]	2005
Year Constructed	[5]	2008
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	460
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,056
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	460
Buildings and Improvements	[5]	3,056
Total	[5]	3,516
Accumulated Depreciation	[5]	$ 1,327
Year Acquired	[5]	2005
Year Constructed	[5]	2008
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 3,358
Initial Cost to the Company [Abstract]
Land	[5],[7]	701
Buildings and Improvements	[5],[7]	0
Costs Capitalized Subsequent to Acquisition	[5],[7]	5,181
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	701
Buildings and Improvements	[5],[7]	5,181
Total	[5],[7]	5,882
Accumulated Depreciation	[5],[7]	$ 2,026
Year Acquired	[5],[7]	2005
Year Constructed	[5],[7]	2008
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing VI [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 3,751
Initial Cost to the Company [Abstract]
Land	[5],[6]	618
Buildings and Improvements	[5],[6]	0
Costs Capitalized Subsequent to Acquisition	[5],[6]	6,268
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	618
Buildings and Improvements	[5],[6]	6,268
Total	[5],[6]	6,886
Accumulated Depreciation	[5],[6]	$ 1,911
Year Acquired	[5],[6]	2005
Year Constructed	[5],[6]	2008
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing VII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 3,663
Initial Cost to the Company [Abstract]
Land	[5],[6]	765
Buildings and Improvements	[5],[6]	0
Costs Capitalized Subsequent to Acquisition	[5],[6]	5,961
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	765
Buildings and Improvements	[5],[6]	5,961
Total	[5],[6]	6,726
Accumulated Depreciation	[5],[6]	$ 2,381
Year Acquired	[5],[6]	2005
Year Constructed	[5],[6]	2009
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing VIII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	721
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,219
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	721
Buildings and Improvements	[5]	5,219
Total	[5]	5,940
Accumulated Depreciation	[5]	$ 1,407
Year Acquired	[5]	2005
Year Constructed	[5]	2011
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing IX [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	418
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	2,114
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	418
Buildings and Improvements	[5]	2,114
Total	[5]	2,532
Accumulated Depreciation	[5]	$ 460
Year Acquired	[5]	2007
Year Constructed	[5]	2012
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing X [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	733
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,871
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	733
Buildings and Improvements	[5]	3,871
Total	[5]	4,604
Accumulated Depreciation	[5]	$ 773
Year Acquired	[5]	2007
Year Constructed	[5]	2012
TEXAS | Industrial [Member] | Houston [Member] | Beltway Crossing XI [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	690
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,101
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	690
Buildings and Improvements	[5]	4,101
Total	[5]	4,791
Accumulated Depreciation	[5]	$ 681
Year Acquired	[5]	2007
Year Constructed	[5]	2013
TEXAS | Industrial [Member] | Houston [Member] | West Road I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	621
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,031
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	541
Buildings and Improvements	[5]	4,111
Total	[5]	4,652
Accumulated Depreciation	[5]	$ 593
Year Acquired	[5]	2012
Year Constructed	[5]	2014
TEXAS | Industrial [Member] | Houston [Member] | West Road II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	981
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,819
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	854
Buildings and Improvements	[5]	4,946
Total	[5]	5,800
Accumulated Depreciation	[5]	$ 611
Year Acquired	[5]	2012
Year Constructed	[5]	2014
TEXAS | Industrial [Member] | Houston [Member] | West Road III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	597
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,222
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	520
Buildings and Improvements	[5]	4,299
Total	[5]	4,819
Accumulated Depreciation	[5]	$ 222
Year Acquired	[5]	2012
Year Constructed	[5]	2015
TEXAS | Industrial [Member] | Houston [Member] | West Road IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	621
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,622
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	541
Buildings and Improvements	[5]	4,702
Total	[5]	5,243
Accumulated Depreciation	[5]	$ 414
Year Acquired	[5]	2012
Year Constructed	[5]	2015
TEXAS | Industrial [Member] | Houston [Member] | Ten West Crossing 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	566
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	2,997
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	566
Buildings and Improvements	[5]	2,997
Total	[5]	3,563
Accumulated Depreciation	[5]	$ 548
Year Acquired	[5]	2012
Year Constructed	[5]	2013
TEXAS | Industrial [Member] | Houston [Member] | Ten West Crossing 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	829
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,385
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	833
Buildings and Improvements	[5]	4,381
Total	[5]	5,214
Accumulated Depreciation	[5]	$ 978
Year Acquired	[5]	2012
Year Constructed	[5]	2013
TEXAS | Industrial [Member] | Houston [Member] | Ten West Crossing 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	609
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,362
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	613
Buildings and Improvements	[5]	4,358
Total	[5]	4,971
Accumulated Depreciation	[5]	$ 913
Year Acquired	[5]	2012
Year Constructed	[5]	2013
TEXAS | Industrial [Member] | Houston [Member] | Ten West Crossing 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	694
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,512
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	699
Buildings and Improvements	[5]	4,507
Total	[5]	5,206
Accumulated Depreciation	[5]	$ 876
Year Acquired	[5]	2012
Year Constructed	[5]	2014
TEXAS | Industrial [Member] | Houston [Member] | Ten West Crossing 5 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	933
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,872
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	940
Buildings and Improvements	[5]	5,865
Total	[5]	6,805
Accumulated Depreciation	[5]	$ 823
Year Acquired	[5]	2012
Year Constructed	[5]	2014
TEXAS | Industrial [Member] | Houston [Member] | Ten West Crossing 6 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	640
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,402
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	644
Buildings and Improvements	[5]	4,398
Total	[5]	5,042
Accumulated Depreciation	[5]	$ 525
Year Acquired	[5]	2012
Year Constructed	[5]	2014
TEXAS | Industrial [Member] | Houston [Member] | Ten West Crossing 7 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	584
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,320
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	588
Buildings and Improvements	[5]	5,316
Total	[5]	5,904
Accumulated Depreciation	[5]	$ 335
Year Acquired	[5]	2012
Year Constructed	[5]	2015
TEXAS | Industrial [Member] | El Paso [Member] | Butterfield Trail [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	0
Buildings and Improvements	[5]	20,725
Costs Capitalized Subsequent to Acquisition	[5]	8,756
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	0
Buildings and Improvements	[5]	29,481
Total	[5]	29,481
Accumulated Depreciation	[5]	$ 18,626
Year Acquired	[5]	1997/2000
Year Constructed	[5]	1987/95
TEXAS | Industrial [Member] | El Paso [Member] | Rojas Commerce Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 4,106
Initial Cost to the Company [Abstract]
Land	[5],[9]	900
Buildings and Improvements	[5],[9]	3,659
Costs Capitalized Subsequent to Acquisition	[5],[9]	3,216
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	900
Buildings and Improvements	[5],[9]	6,875
Total	[5],[9]	7,775
Accumulated Depreciation	[5],[9]	$ 5,090
Year Acquired	[5],[9]	1999
Year Constructed	[5],[9]	1986
TEXAS | Industrial [Member] | El Paso [Member] | Americas Ten Business Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	526
Buildings and Improvements	[5]	2,778
Costs Capitalized Subsequent to Acquisition	[5]	1,241
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	526
Buildings and Improvements	[5]	4,019
Total	[5]	4,545
Accumulated Depreciation	[5]	$ 2,303
Year Acquired	[5]	2001
Year Constructed	[5]	2003
TEXAS | Industrial [Member] | San Antonio [Member] | Alamo Downs Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,342
Buildings and Improvements	[5]	6,338
Costs Capitalized Subsequent to Acquisition	[5]	1,554
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,342
Buildings and Improvements	[5]	7,892
Total	[5]	9,234
Accumulated Depreciation	[5]	$ 4,328
Year Acquired	[5]	2004
Year Constructed	[5]	1986/2002
TEXAS | Industrial [Member] | San Antonio [Member] | Arion Business Park 1-13, 15 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	4,143
Buildings and Improvements	[5]	31,432
Costs Capitalized Subsequent to Acquisition	[5]	6,640
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	4,143
Buildings and Improvements	[5]	38,072
Total	[5]	42,215
Accumulated Depreciation	[5]	$ 17,801
Year Acquired	[5]	2005
Year Constructed	[5]	1988-2000/06
TEXAS | Industrial [Member] | San Antonio [Member] | Arion 14 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	423
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,460
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	423
Buildings and Improvements	[5]	3,460
Total	[5]	3,883
Accumulated Depreciation	[5]	$ 1,411
Year Acquired	[5]	2005
Year Constructed	[5]	2006
TEXAS | Industrial [Member] | San Antonio [Member] | Arion 16 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	427
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,699
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	427
Buildings and Improvements	[5]	3,699
Total	[5]	4,126
Accumulated Depreciation	[5]	$ 1,341
Year Acquired	[5]	2005
Year Constructed	[5]	2007
TEXAS | Industrial [Member] | San Antonio [Member] | Arion 17 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	616
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,143
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	616
Buildings and Improvements	[5]	4,143
Total	[5]	4,759
Accumulated Depreciation	[5]	$ 2,248
Year Acquired	[5]	2005
Year Constructed	[5]	2007
TEXAS | Industrial [Member] | San Antonio [Member] | Arion 18 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 1,520
Initial Cost to the Company [Abstract]
Land	[5],[6]	418
Buildings and Improvements	[5],[6]	0
Costs Capitalized Subsequent to Acquisition	[5],[6]	2,373
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	418
Buildings and Improvements	[5],[6]	2,373
Total	[5],[6]	2,791
Accumulated Depreciation	[5],[6]	$ 1,059
Year Acquired	[5],[6]	2005
Year Constructed	[5],[6]	2008
TEXAS | Industrial [Member] | San Antonio [Member] | Wetmore Business Center 1-4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,494
Buildings and Improvements	[5]	10,804
Costs Capitalized Subsequent to Acquisition	[5]	3,543
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,494
Buildings and Improvements	[5]	14,347
Total	[5]	15,841
Accumulated Depreciation	[5]	$ 7,214
Year Acquired	[5]	2005
Year Constructed	[5]	1998/99
TEXAS | Industrial [Member] | San Antonio [Member] | Wetmore Business Center 5 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 2,281
Initial Cost to the Company [Abstract]
Land	[5],[7]	412
Buildings and Improvements	[5],[7]	0
Costs Capitalized Subsequent to Acquisition	[5],[7]	3,584
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	412
Buildings and Improvements	[5],[7]	3,584
Total	[5],[7]	3,996
Accumulated Depreciation	[5],[7]	$ 1,636
Year Acquired	[5],[7]	2006
Year Constructed	[5],[7]	2008
TEXAS | Industrial [Member] | San Antonio [Member] | Wetmore Business Center 6 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 2,463
Initial Cost to the Company [Abstract]
Land	[5],[7]	505
Buildings and Improvements	[5],[7]	0
Costs Capitalized Subsequent to Acquisition	[5],[7]	3,809
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	505
Buildings and Improvements	[5],[7]	3,809
Total	[5],[7]	4,314
Accumulated Depreciation	[5],[7]	$ 1,417
Year Acquired	[5],[7]	2006
Year Constructed	[5],[7]	2008
TEXAS | Industrial [Member] | San Antonio [Member] | Wetmore Business Center 7 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 2,538
Initial Cost to the Company [Abstract]
Land	[5],[7]	546
Buildings and Improvements	[5],[7]	0
Costs Capitalized Subsequent to Acquisition	[5],[7]	3,899
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	546
Buildings and Improvements	[5],[7]	3,899
Total	[5],[7]	4,445
Accumulated Depreciation	[5],[7]	$ 1,213
Year Acquired	[5],[7]	2006
Year Constructed	[5],[7]	2008
TEXAS | Industrial [Member] | San Antonio [Member] | Wetmore Business Center 8 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 4,987
Initial Cost to the Company [Abstract]
Land	[5],[7]	1,056
Buildings and Improvements	[5],[7]	0
Costs Capitalized Subsequent to Acquisition	[5],[7]	7,680
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	1,056
Buildings and Improvements	[5],[7]	7,680
Total	[5],[7]	8,736
Accumulated Depreciation	[5],[7]	$ 2,625
Year Acquired	[5],[7]	2006
Year Constructed	[5],[7]	2008
TEXAS | Industrial [Member] | San Antonio [Member] | Fairgrounds Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,644
Buildings and Improvements	[5]	8,209
Costs Capitalized Subsequent to Acquisition	[5]	2,229
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,644
Buildings and Improvements	[5]	10,438
Total	[5]	12,082
Accumulated Depreciation	[5]	$ 5,110
Year Acquired	[5]	2007
Year Constructed	[5]	1985/86
TEXAS | Industrial [Member] | San Antonio [Member] | Rittiman Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,083
Buildings and Improvements	[5]	6,649
Costs Capitalized Subsequent to Acquisition	[5]	337
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,083
Buildings and Improvements	[5]	6,986
Total	[5]	8,069
Accumulated Depreciation	[5]	$ 1,379
Year Acquired	[5]	2011
Year Constructed	[5]	2000
TEXAS | Industrial [Member] | San Antonio [Member] | Thousand Oaks I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	607
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,292
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	607
Buildings and Improvements	[5]	4,292
Total	[5]	4,899
Accumulated Depreciation	[5]	$ 1,230
Year Acquired	[5]	2008
Year Constructed	[5]	2012
TEXAS | Industrial [Member] | San Antonio [Member] | Thousand Oaks 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	794
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,719
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	794
Buildings and Improvements	[5]	4,719
Total	[5]	5,513
Accumulated Depreciation	[5]	$ 1,125
Year Acquired	[5]	2008
Year Constructed	[5]	2012
TEXAS | Industrial [Member] | San Antonio [Member] | Thousand Oaks 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	772
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,457
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	772
Buildings and Improvements	[5]	4,457
Total	[5]	5,229
Accumulated Depreciation	[5]	$ 938
Year Acquired	[5]	2008
Year Constructed	[5]	2013
TEXAS | Industrial [Member] | San Antonio [Member] | Thousand Oaks 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	753
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,688
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	753
Buildings and Improvements	[5]	4,688
Total	[5]	5,441
Accumulated Depreciation	[5]	$ 363
Year Acquired	[5]	2013
Year Constructed	[5]	2015
TEXAS | Industrial [Member] | San Antonio [Member] | Alamo Ridge I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	623
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	7,984
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	623
Buildings and Improvements	[5]	7,984
Total	[5]	8,607
Accumulated Depreciation	[5]	$ 881
Year Acquired	[5]	2007
Year Constructed	[5]	2015
TEXAS | Industrial [Member] | San Antonio [Member] | Alamo Ridge II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	402
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,347
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	402
Buildings and Improvements	[5]	5,347
Total	[5]	5,749
Accumulated Depreciation	[5]	$ 391
Year Acquired	[5]	2007
Year Constructed	[5]	2015
TEXAS | Industrial [Member] | San Antonio [Member] | Alamo Ridge III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	907
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	10,123
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	907
Buildings and Improvements	[5]	10,123
Total	[5]	11,030
Accumulated Depreciation	[5]	$ 329
Year Acquired	[5]	2007
Year Constructed	[5]	2017
TEXAS | Industrial [Member] | San Antonio [Member] | Eisenhauer Point 1 & 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,881
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	14,642
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,881
Buildings and Improvements	[5]	14,642
Total	[5]	16,523
Accumulated Depreciation	[5]	$ 712
Year Acquired	[5]	2015
Year Constructed	[5]	2016
TEXAS | Industrial [Member] | San Antonio [Member] | Eisenhauer Point 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	555
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	4,816
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	555
Buildings and Improvements	[5]	4,816
Total	[5]	5,371
Accumulated Depreciation	[5]	$ 93
Year Acquired	[5]	2015
Year Constructed	[5]	2017
TEXAS | Industrial [Member] | Austin [Member] | Colorado Crossing Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 12,913
Initial Cost to the Company [Abstract]
Land	[5],[9]	4,602
Buildings and Improvements	[5],[9]	19,757
Costs Capitalized Subsequent to Acquisition	[5],[9]	94
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	4,602
Buildings and Improvements	[5],[9]	19,851
Total	[5],[9]	24,453
Accumulated Depreciation	[5],[9]	$ 3,821
Year Acquired	[5],[9]	2014
Year Constructed	[5],[9]	2009
TEXAS | Industrial [Member] | Austin [Member] | Southpark Corporate Center 3 & 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,670
Buildings and Improvements	[5]	14,756
Costs Capitalized Subsequent to Acquisition	[5]	912
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,670
Buildings and Improvements	[5]	15,668
Total	[5]	18,338
Accumulated Depreciation	[5]	$ 2,326
Year Acquired	[5]	2015
Year Constructed	[5]	1995
TEXAS | Industrial [Member] | Austin [Member] | Southpark Corporate Center 5-7 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,301
Buildings and Improvements	[5]	7,589
Costs Capitalized Subsequent to Acquisition	[5]	786
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,301
Buildings and Improvements	[5]	8,375
Total	[5]	9,676
Accumulated Depreciation	[5]	$ 270
Year Acquired	[5]	2017
Year Constructed	[5]	1995
TEXAS | Industrial [Member] | Austin [Member] | Springdale Business Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,824
Buildings and Improvements	[5]	8,398
Costs Capitalized Subsequent to Acquisition	[5]	324
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,824
Buildings and Improvements	[5]	8,722
Total	[5]	11,546
Accumulated Depreciation	[5]	$ 986
Year Acquired	[5]	2015
Year Constructed	[5]	2000
TEXAS | Industrial Development [Member] | CreekView 121 3 & 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	2,600
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	7,711
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	2,600
Buildings and Improvements	[4]	7,711
Total	[4]	10,311
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2015/16
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | CreekView 121 land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	5,322
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	1,203
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	5,322
Buildings and Improvements	[4]	1,203
Total	[4]	6,525
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2015/16
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | Parc North land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	2,519
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	552
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	2,519
Buildings and Improvements	[4]	552
Total	[4]	3,071
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2016
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | World Houston Intl Business Ctr land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	2,989
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	2,119
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	3,723
Buildings and Improvements	[4]	1,385
Total	[4]	5,108
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2007
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | World Houston Intl Business Ctr land-2011 expansion [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,636
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	4,320
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	2,920
Buildings and Improvements	[4]	3,036
Total	[4]	5,956
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2011
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | World Houston Int'l Business Center land - 2015 expansion [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	6,040
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	1,132
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	6,041
Buildings and Improvements	[4]	1,131
Total	[4]	7,172
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2015
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | Ten West Crossing land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,126
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	806
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	1,135
Buildings and Improvements	[4]	797
Total	[4]	1,932
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2012
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | West Road land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	484
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	538
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	421
Buildings and Improvements	[4]	601
Total	[4]	1,022
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2012
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | Alamo Ridge IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	354
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	6,743
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	355
Buildings and Improvements	[4]	6,742
Total	[4]	7,097
Accumulated Depreciation	[4]	$ 23
Year Acquired	[4]	2007
Year Constructed	[4]	2017
TEXAS | Industrial Development [Member] | Eisenhauer Point 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	577
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	5,582
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	578
Buildings and Improvements	[4]	5,581
Total	[4]	6,159
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2015
Year Constructed	[4]	2017
TEXAS | Industrial Development [Member] | Eisenhauer Point 5 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	818
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	4,986
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	818
Buildings and Improvements	[4]	4,986
Total	[4]	5,804
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2015
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | Eisenhauer Point 6 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	569
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	3,481
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	569
Buildings and Improvements	[4]	3,481
Total	[4]	4,050
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2015
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | Eisenhauer Point Business Park land phase 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	3,225
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	2,507
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	3,225
Buildings and Improvements	[4]	2,507
Total	[4]	5,732
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2016
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | Tri-County Crossing Land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	5,260
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	402
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	5,260
Buildings and Improvements	[4]	402
Total	[4]	5,662
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2017
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | Settlers Crossing 1 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,211
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	345
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	1,211
Buildings and Improvements	[4]	345
Total	[4]	1,556
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2017
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | Settlers Crossing 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,306
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	367
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	1,306
Buildings and Improvements	[4]	367
Total	[4]	1,673
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2017
Year Constructed	[4]	n/a
TEXAS | Industrial Development [Member] | Settlers Crossing land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	2,774
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	246
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	2,774
Buildings and Improvements	[4]	246
Total	[4]	3,020
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2017
Year Constructed	[4]	n/a
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Broadway Industrial Park I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	837
Buildings and Improvements	[5]	3,349
Costs Capitalized Subsequent to Acquisition	[5]	1,063
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	837
Buildings and Improvements	[5]	4,412
Total	[5]	5,249
Accumulated Depreciation	[5]	$ 2,794
Year Acquired	[5]	1996
Year Constructed	[5]	1971
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Broadway Industrial Park II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	455
Buildings and Improvements	[5]	482
Costs Capitalized Subsequent to Acquisition	[5]	306
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	455
Buildings and Improvements	[5]	788
Total	[5]	1,243
Accumulated Depreciation	[5]	$ 441
Year Acquired	[5]	1999
Year Constructed	[5]	1971
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Broadway Industrial Park III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	775
Buildings and Improvements	[5]	1,742
Costs Capitalized Subsequent to Acquisition	[5]	523
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	775
Buildings and Improvements	[5]	2,265
Total	[5]	3,040
Accumulated Depreciation	[5]	$ 1,398
Year Acquired	[5]	2000
Year Constructed	[5]	1983
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Broadway Industrial Park IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	380
Buildings and Improvements	[5]	1,652
Costs Capitalized Subsequent to Acquisition	[5]	783
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	380
Buildings and Improvements	[5]	2,435
Total	[5]	2,815
Accumulated Depreciation	[5]	$ 1,591
Year Acquired	[5]	2000
Year Constructed	[5]	1986
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Broadway Industrial Park V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	353
Buildings and Improvements	[5]	1,090
Costs Capitalized Subsequent to Acquisition	[5]	146
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	353
Buildings and Improvements	[5]	1,236
Total	[5]	1,589
Accumulated Depreciation	[5]	$ 691
Year Acquired	[5]	2002
Year Constructed	[5]	1980
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Broadway Industrial Park VI [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	599
Buildings and Improvements	[5]	1,855
Costs Capitalized Subsequent to Acquisition	[5]	738
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	599
Buildings and Improvements	[5]	2,593
Total	[5]	3,192
Accumulated Depreciation	[5]	$ 1,585
Year Acquired	[5]	2002
Year Constructed	[5]	1979
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Broadway Industrial Park VII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	450
Buildings and Improvements	[5]	650
Costs Capitalized Subsequent to Acquisition	[5]	243
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	450
Buildings and Improvements	[5]	893
Total	[5]	1,343
Accumulated Depreciation	[5]	$ 224
Year Acquired	[5]	2011
Year Constructed	[5]	1999
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Kyrene Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,490
Buildings and Improvements	[5]	4,453
Costs Capitalized Subsequent to Acquisition	[5]	1,863
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,490
Buildings and Improvements	[5]	6,316
Total	[5]	7,806
Accumulated Depreciation	[5]	$ 3,857
Year Acquired	[5]	1999
Year Constructed	[5]	1981/2001
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Southpark Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	918
Buildings and Improvements	[5]	2,738
Costs Capitalized Subsequent to Acquisition	[5]	1,934
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	918
Buildings and Improvements	[5]	4,672
Total	[5]	5,590
Accumulated Depreciation	[5]	$ 1,820
Year Acquired	[5]	2001
Year Constructed	[5]	2000
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Santan 10 Distribution Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	846
Buildings and Improvements	[5]	2,647
Costs Capitalized Subsequent to Acquisition	[5]	658
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	846
Buildings and Improvements	[5]	3,305
Total	[5]	4,151
Accumulated Depreciation	[5]	$ 1,472
Year Acquired	[5]	2001
Year Constructed	[5]	2005
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Santan 10 Distribution Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,088
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,163
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,088
Buildings and Improvements	[5]	5,163
Total	[5]	6,251
Accumulated Depreciation	[5]	$ 2,238
Year Acquired	[5]	2004
Year Constructed	[5]	2007
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Chandler Freeways [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,525
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	7,381
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,525
Buildings and Improvements	[5]	7,381
Total	[5]	8,906
Accumulated Depreciation	[5]	$ 1,124
Year Acquired	[5]	2012
Year Constructed	[5]	2013
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Kyrene 202 I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	653
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,777
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	653
Buildings and Improvements	[5]	5,777
Total	[5]	6,430
Accumulated Depreciation	[5]	$ 592
Year Acquired	[5]	2011
Year Constructed	[5]	2014
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Kyrene 202 II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	387
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,414
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	387
Buildings and Improvements	[5]	3,414
Total	[5]	3,801
Accumulated Depreciation	[5]	$ 352
Year Acquired	[5]	2011
Year Constructed	[5]	2014
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Kyrene 202 VI [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	936
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	8,290
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	936
Buildings and Improvements	[5]	8,290
Total	[5]	9,226
Accumulated Depreciation	[5]	$ 371
Year Acquired	[5]	2011
Year Constructed	[5]	2015
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Metro Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,927
Buildings and Improvements	[5]	7,708
Costs Capitalized Subsequent to Acquisition	[5]	7,139
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,927
Buildings and Improvements	[5]	14,847
Total	[5]	16,774
Accumulated Depreciation	[5]	$ 10,251
Year Acquired	[5]	1996
Year Constructed	[5]	1977/79
ARIZONA | Industrial [Member] | Phoenix Area [Member] | 35th Avenue Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	418
Buildings and Improvements	[5]	2,381
Costs Capitalized Subsequent to Acquisition	[5]	2,118
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	418
Buildings and Improvements	[5]	4,499
Total	[5]	4,917
Accumulated Depreciation	[5]	$ 1,487
Year Acquired	[5]	1997
Year Constructed	[5]	1967
ARIZONA | Industrial [Member] | Phoenix Area [Member] | 51st Avenue Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	300
Buildings and Improvements	[5]	2,029
Costs Capitalized Subsequent to Acquisition	[5]	995
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	300
Buildings and Improvements	[5]	3,024
Total	[5]	3,324
Accumulated Depreciation	[5]	$ 1,944
Year Acquired	[5]	1998
Year Constructed	[5]	1987
ARIZONA | Industrial [Member] | Phoenix Area [Member] | East University Distribution Center I and II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,120
Buildings and Improvements	[5]	4,482
Costs Capitalized Subsequent to Acquisition	[5]	1,799
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,120
Buildings and Improvements	[5]	6,281
Total	[5]	7,401
Accumulated Depreciation	[5]	$ 4,120
Year Acquired	[5]	1998
Year Constructed	[5]	1987/89
ARIZONA | Industrial [Member] | Phoenix Area [Member] | East University Distribution Center III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	444
Buildings and Improvements	[5]	698
Costs Capitalized Subsequent to Acquisition	[5]	422
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	443
Buildings and Improvements	[5]	1,121
Total	[5]	1,564
Accumulated Depreciation	[5]	$ 336
Year Acquired	[5]	2010
Year Constructed	[5]	1981
ARIZONA | Industrial [Member] | Phoenix Area [Member] | 55th Avenue Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	912
Buildings and Improvements	[5]	3,717
Costs Capitalized Subsequent to Acquisition	[5]	1,116
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	917
Buildings and Improvements	[5]	4,828
Total	[5]	5,745
Accumulated Depreciation	[5]	$ 3,267
Year Acquired	[5]	1998
Year Constructed	[5]	1987
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Interstate Commons Dist Ctr I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	311
Buildings and Improvements	[5]	1,416
Costs Capitalized Subsequent to Acquisition	[5]	720
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	311
Buildings and Improvements	[5]	2,136
Total	[5]	2,447
Accumulated Depreciation	[5]	$ 1,308
Year Acquired	[5]	1999
Year Constructed	[5]	1988
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Interstate Commons Dist Ctr III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	242
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,079
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	242
Buildings and Improvements	[5]	3,079
Total	[5]	3,321
Accumulated Depreciation	[5]	$ 1,035
Year Acquired	[5]	2000
Year Constructed	[5]	2008
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Airport Commons [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,000
Buildings and Improvements	[5]	1,510
Costs Capitalized Subsequent to Acquisition	[5]	1,485
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,000
Buildings and Improvements	[5]	2,995
Total	[5]	3,995
Accumulated Depreciation	[5]	$ 1,838
Year Acquired	[5]	2003
Year Constructed	[5]	1971
ARIZONA | Industrial [Member] | Phoenix Area [Member] | 40th Avenue Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 3,860
Initial Cost to the Company [Abstract]
Land	[5],[7]	703
Buildings and Improvements	[5],[7]	0
Costs Capitalized Subsequent to Acquisition	[5],[7]	6,059
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	703
Buildings and Improvements	[5],[7]	6,059
Total	[5],[7]	6,762
Accumulated Depreciation	[5],[7]	$ 2,078
Year Acquired	[5],[7]	2004
Year Constructed	[5]	2008
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Sky Harbor Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	5,839
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	21,754
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	5,839
Buildings and Improvements	[5]	21,754
Total	[5]	27,593
Accumulated Depreciation	[5]	$ 7,186
Year Acquired	[5]	2006
Year Constructed	[5]	2008
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Sky Harbor 6 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	807
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	2,177
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	807
Buildings and Improvements	[5]	2,177
Total	[5]	2,984
Accumulated Depreciation	[5]	$ 183
Year Acquired	[5]	2014
Year Constructed	[5]	2015
ARIZONA | Industrial [Member] | Phoenix Area [Member] | Ten Sky Harbor [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,568
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	5,009
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,569
Buildings and Improvements	[5]	5,008
Total	[5]	6,577
Accumulated Depreciation	[5]	$ 82
Year Acquired	[5]	2015
Year Constructed	[5]	2016
ARIZONA | Industrial [Member] | Tucson [Member] | Country Club I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	506
Buildings and Improvements	[5]	3,564
Costs Capitalized Subsequent to Acquisition	[5]	2,173
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	693
Buildings and Improvements	[5]	5,550
Total	[5]	6,243
Accumulated Depreciation	[5]	$ 2,660
Year Acquired	[5]	1997/2003
Year Constructed	[5]	1994/2003
ARIZONA | Industrial [Member] | Tucson [Member] | Country Club II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	442
Buildings and Improvements	[5]	3,381
Costs Capitalized Subsequent to Acquisition	[5]	304
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	709
Buildings and Improvements	[5]	3,418
Total	[5]	4,127
Accumulated Depreciation	[5]	$ 1,212
Year Acquired	[5]	2007
Year Constructed	[5]	2000
ARIZONA | Industrial [Member] | Tucson [Member] | Country Club III and IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,407
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	11,833
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,575
Buildings and Improvements	[5]	11,665
Total	[5]	13,240
Accumulated Depreciation	[5]	$ 4,279
Year Acquired	[5]	2007
Year Constructed	[5]	2009
ARIZONA | Industrial [Member] | Tucson [Member] | Airport Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,403
Buildings and Improvements	[5]	4,672
Costs Capitalized Subsequent to Acquisition	[5]	1,619
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,403
Buildings and Improvements	[5]	6,291
Total	[5]	7,694
Accumulated Depreciation	[5]	$ 3,827
Year Acquired	[5]	1998/2000
Year Constructed	[5]	1995
ARIZONA | Industrial [Member] | Tucson [Member] | Southpointe Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	0
Buildings and Improvements	[5]	3,982
Costs Capitalized Subsequent to Acquisition	[5]	2,950
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	0
Buildings and Improvements	[5]	6,932
Total	[5]	6,932
Accumulated Depreciation	[5]	$ 4,450
Year Acquired	[5]	1999
Year Constructed	[5]	1989
ARIZONA | Industrial [Member] | Tucson [Member] | Benan Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	707
Buildings and Improvements	[5]	1,842
Costs Capitalized Subsequent to Acquisition	[5]	648
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	707
Buildings and Improvements	[5]	2,490
Total	[5]	3,197
Accumulated Depreciation	[5]	$ 1,424
Year Acquired	[5]	2005
Year Constructed	[5]	2001
ARIZONA | Industrial Development [Member] | Kyrene 202 3, 4 & 5 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,244
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	10,299
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	1,244
Buildings and Improvements	[4]	10,299
Total	[4]	11,543
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2011
Year Constructed	[4]	n/a
ARIZONA | Industrial Development [Member] | Falcon Field [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,312
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	1,635
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	1,312
Buildings and Improvements	[4]	1,635
Total	[4]	2,947
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2015
Year Constructed	[4]	n/a
ARIZONA | Industrial Development [Member] | Country Club V [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	2,885
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	11,066
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	2,886
Buildings and Improvements	[4]	11,065
Total	[4]	13,951
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2016
Year Constructed	[4]	n/a
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Airport Commerce Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,454
Buildings and Improvements	[5]	10,136
Costs Capitalized Subsequent to Acquisition	[5]	2,260
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,454
Buildings and Improvements	[5]	12,396
Total	[5]	13,850
Accumulated Depreciation	[5]	$ 4,260
Year Acquired	[5]	2008
Year Constructed	[5]	2001/02
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | NorthPark Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,758
Buildings and Improvements	[5]	15,932
Costs Capitalized Subsequent to Acquisition	[5]	4,645
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,758
Buildings and Improvements	[5]	20,577
Total	[5]	23,335
Accumulated Depreciation	[5]	$ 9,459
Year Acquired	[5]	2006
Year Constructed	[5]	1987-89
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Lindbergh Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	470
Buildings and Improvements	[5]	3,401
Costs Capitalized Subsequent to Acquisition	[5]	482
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	470
Buildings and Improvements	[5]	3,883
Total	[5]	4,353
Accumulated Depreciation	[5]	$ 1,601
Year Acquired	[5]	2007
Year Constructed	[5]	2001/03
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Commerce Park I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	765
Buildings and Improvements	[5]	4,303
Costs Capitalized Subsequent to Acquisition	[5]	842
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	765
Buildings and Improvements	[5]	5,145
Total	[5]	5,910
Accumulated Depreciation	[5]	$ 1,999
Year Acquired	[5]	2007
Year Constructed	[5]	1983
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Commerce Park II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 1,221
Initial Cost to the Company [Abstract]
Land	[5],[6]	335
Buildings and Improvements	[5],[6]	1,603
Costs Capitalized Subsequent to Acquisition	[5],[6]	304
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	335
Buildings and Improvements	[5],[6]	1,907
Total	[5],[6]	2,242
Accumulated Depreciation	[5],[6]	$ 626
Year Acquired	[5],[6]	2010
Year Constructed	[5],[6]	1987
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Commerce Park III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 2,034
Initial Cost to the Company [Abstract]
Land	[5],[6]	558
Buildings and Improvements	[5],[6]	2,225
Costs Capitalized Subsequent to Acquisition	[5],[6]	952
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	558
Buildings and Improvements	[5],[6]	3,177
Total	[5],[6]	3,735
Accumulated Depreciation	[5],[6]	$ 971
Year Acquired	[5],[6]	2010
Year Constructed	[5],[6]	1981
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Nations Ford Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	3,924
Buildings and Improvements	[5]	16,171
Costs Capitalized Subsequent to Acquisition	[5]	3,441
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	3,924
Buildings and Improvements	[5]	19,612
Total	[5]	23,536
Accumulated Depreciation	[5]	$ 8,884
Year Acquired	[5]	2007
Year Constructed	[5]	1989/94
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Interchange Park I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 5,442
Initial Cost to the Company [Abstract]
Land	[5],[7]	986
Buildings and Improvements	[5],[7]	7,949
Costs Capitalized Subsequent to Acquisition	[5],[7]	598
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	986
Buildings and Improvements	[5],[7]	8,547
Total	[5],[7]	9,533
Accumulated Depreciation	[5],[7]	$ 2,759
Year Acquired	[5],[7]	2008
Year Constructed	[5],[7]	1989
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Interchange Park II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	746
Buildings and Improvements	[5]	1,456
Costs Capitalized Subsequent to Acquisition	[5]	55
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	746
Buildings and Improvements	[5]	1,511
Total	[5]	2,257
Accumulated Depreciation	[5]	$ 224
Year Acquired	[5]	2013
Year Constructed	[5]	2000
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Ridge Creek Distribution Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,284
Buildings and Improvements	[5]	13,163
Costs Capitalized Subsequent to Acquisition	[5]	976
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,284
Buildings and Improvements	[5]	14,139
Total	[5]	15,423
Accumulated Depreciation	[5]	$ 4,157
Year Acquired	[5]	2008
Year Constructed	[5]	2006
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Ridge Creek Distribution Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 9,067
Initial Cost to the Company [Abstract]
Land	[5],[6]	3,033
Buildings and Improvements	[5],[6]	11,497
Costs Capitalized Subsequent to Acquisition	[5],[6]	2,116
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	3,033
Buildings and Improvements	[5],[6]	13,613
Total	[5],[6]	16,646
Accumulated Depreciation	[5],[6]	$ 2,699
Year Acquired	[5],[6]	2011
Year Constructed	[5],[6]	2003
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Ridge Creek Distribution Center III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,459
Buildings and Improvements	[5]	11,147
Costs Capitalized Subsequent to Acquisition	[5]	538
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,459
Buildings and Improvements	[5]	11,685
Total	[5]	14,144
Accumulated Depreciation	[5]	$ 1,474
Year Acquired	[5]	2014
Year Constructed	[5]	2013
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Lakeview Business [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 4,017
Initial Cost to the Company [Abstract]
Land	[5],[6]	1,392
Buildings and Improvements	[5],[6]	5,068
Costs Capitalized Subsequent to Acquisition	[5],[6]	916
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	1,392
Buildings and Improvements	[5],[6]	5,984
Total	[5],[6]	7,376
Accumulated Depreciation	[5],[6]	$ 1,492
Year Acquired	[5],[6]	2011
Year Constructed	[5],[6]	1996
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Steele Creek I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 2,803
Initial Cost to the Company [Abstract]
Land	[5],[9]	993
Buildings and Improvements	[5],[9]	0
Costs Capitalized Subsequent to Acquisition	[5],[9]	4,315
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	1,010
Buildings and Improvements	[5],[9]	4,298
Total	[5],[9]	5,308
Accumulated Depreciation	[5],[9]	$ 770
Year Acquired	[5],[9]	2013
Year Constructed	[5],[9]	2014
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Steele Creek II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[9]	$ 2,852
Initial Cost to the Company [Abstract]
Land	[5],[9]	941
Buildings and Improvements	[5],[9]	0
Costs Capitalized Subsequent to Acquisition	[5],[9]	4,459
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[9]	957
Buildings and Improvements	[5],[9]	4,443
Total	[5],[9]	5,400
Accumulated Depreciation	[5],[9]	$ 775
Year Acquired	[5],[9]	2013
Year Constructed	[5],[9]	2014
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Steele Creek III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,464
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,412
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,469
Buildings and Improvements	[5]	6,407
Total	[5]	7,876
Accumulated Depreciation	[5]	$ 889
Year Acquired	[5]	2013
Year Constructed	[5]	2014
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Steele Creek IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	684
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	3,945
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	687
Buildings and Improvements	[5]	3,942
Total	[5]	4,629
Accumulated Depreciation	[5]	$ 467
Year Acquired	[5]	2013
Year Constructed	[5]	2015
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Steele Creek VI [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	867
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	6,974
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	869
Buildings and Improvements	[5]	6,972
Total	[5]	7,841
Accumulated Depreciation	[5]	$ 227
Year Acquired	[5]	2013/14
Year Constructed	[5]	2016
NORTH CAROLINA | Industrial [Member] | Charlotte [Member] | Waterford Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	654
Buildings and Improvements	[5]	3,392
Costs Capitalized Subsequent to Acquisition	[5]	655
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	654
Buildings and Improvements	[5]	4,047
Total	[5]	4,701
Accumulated Depreciation	[5]	$ 1,276
Year Acquired	[5]	2008
Year Constructed	[5]	2000
NORTH CAROLINA | Industrial Development [Member] | Steele Creek VII [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,207
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	6,590
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	1,209
Buildings and Improvements	[4]	6,588
Total	[4]	7,797
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2013/14/15
Year Constructed	[4]	2017
NORTH CAROLINA | Industrial Development [Member] | Airport Commerce Center 3 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	855
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	878
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	855
Buildings and Improvements	[4]	878
Total	[4]	1,733
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2008
Year Constructed	[4]	n/a
NORTH CAROLINA | Industrial Development [Member] | Steele Creek land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	3,318
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	1,250
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	3,330
Buildings and Improvements	[4]	1,238
Total	[4]	4,568
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2013-2016
Year Constructed	[4]	n/a
NORTH CAROLINA | Industrial Development [Member] | Steele Creek land phase 4 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,866
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	294
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	1,866
Buildings and Improvements	[4]	294
Total	[4]	2,160
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2016/17
Year Constructed	[4]	n/a
GEORGIA | Industrial [Member] | Atlanta [Member] | Shiloh 400 I & II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	3,092
Buildings and Improvements	[5]	14,216
Costs Capitalized Subsequent to Acquisition	[5]	1,488
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	3,092
Buildings and Improvements	[5]	15,704
Total	[5]	18,796
Accumulated Depreciation	[5]	$ 672
Year Acquired	[5]	2017
Year Constructed	[5]	2008
GEORGIA | Industrial [Member] | Atlanta [Member] | Broadmoor Commerce Park I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,307
Buildings and Improvements	[5]	3,560
Costs Capitalized Subsequent to Acquisition	[5]	496
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,307
Buildings and Improvements	[5]	4,056
Total	[5]	5,363
Accumulated Depreciation	[5]	$ 228
Year Acquired	[5]	2017
Year Constructed	[5]	1999
GEORGIA | Industrial [Member] | Atlanta [Member] | Hurricane Shoals I & II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	4,284
Buildings and Improvements	[5]	12,449
Costs Capitalized Subsequent to Acquisition	[5]	1,141
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	4,284
Buildings and Improvements	[5]	13,590
Total	[5]	17,874
Accumulated Depreciation	[5]	$ 40
Year Acquired	[5]	2017
Year Constructed	[5]	2017
GEORGIA | Industrial Development [Member] | Progress Center 1 & 2 [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	1,297
Buildings and Improvements	[4]	9,015
Costs Capitalized Subsequent to Acquisition	[4]	21
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	1,297
Buildings and Improvements	[4]	9,036
Total	[4]	10,333
Accumulated Depreciation	[4]	$ 2
Year Acquired	[4]	2017
Year Constructed	[4]	2017
GEORGIA | Industrial Development [Member] | Broadmoor Commerce Park land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	519
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	186
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	519
Buildings and Improvements	[4]	186
Total	[4]	705
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2017
Year Constructed	[4]	n/a
GEORGIA | Industrial Development [Member] | Progress Center land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	497
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	5
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	497
Buildings and Improvements	[4]	5
Total	[4]	502
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2017
Year Constructed	[4]	n/a
LOUISIANA | Industrial [Member] | New Orleans [Member] | Elmwood Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,861
Buildings and Improvements	[5]	6,337
Costs Capitalized Subsequent to Acquisition	[5]	5,026
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,861
Buildings and Improvements	[5]	11,363
Total	[5]	14,224
Accumulated Depreciation	[5]	$ 7,841
Year Acquired	[5]	1997
Year Constructed	[5]	1979
LOUISIANA | Industrial [Member] | New Orleans [Member] | Riverbend Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	2,557
Buildings and Improvements	[5]	17,623
Costs Capitalized Subsequent to Acquisition	[5]	8,471
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	2,557
Buildings and Improvements	[5]	26,094
Total	[5]	28,651
Accumulated Depreciation	[5]	$ 14,573
Year Acquired	[5]	1997
Year Constructed	[5]	1984
COLORADO | Industrial [Member] | Denver [Member] | Rampart Distribution Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,023
Buildings and Improvements	[5]	3,861
Costs Capitalized Subsequent to Acquisition	[5]	2,093
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,023
Buildings and Improvements	[5]	5,954
Total	[5]	6,977
Accumulated Depreciation	[5]	$ 4,309
Year Acquired	[5]	1988
Year Constructed	[5]	1987
COLORADO | Industrial [Member] | Denver [Member] | Rampart Distribution Center II [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	230
Buildings and Improvements	[5]	2,977
Costs Capitalized Subsequent to Acquisition	[5]	1,173
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	230
Buildings and Improvements	[5]	4,150
Total	[5]	4,380
Accumulated Depreciation	[5]	$ 2,782
Year Acquired	[5]	1996/97
Year Constructed	[5]	1996/97
COLORADO | Industrial [Member] | Denver [Member] | Rampart Distribution Center III [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	1,098
Buildings and Improvements	[5]	3,884
Costs Capitalized Subsequent to Acquisition	[5]	1,931
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	1,098
Buildings and Improvements	[5]	5,815
Total	[5]	6,913
Accumulated Depreciation	[5]	$ 3,092
Year Acquired	[5]	1997/98
Year Constructed	[5]	1999
COLORADO | Industrial [Member] | Denver [Member] | Rampart Distribution Center IV [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	590
Buildings and Improvements	[5]	0
Costs Capitalized Subsequent to Acquisition	[5]	8,322
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	590
Buildings and Improvements	[5]	8,322
Total	[5]	8,912
Accumulated Depreciation	[5]	$ 623
Year Acquired	[5]	2012
Year Constructed	[5]	2014
COLORADO | Industrial [Member] | Denver [Member] | Concord Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[6]	$ 3,413
Initial Cost to the Company [Abstract]
Land	[5],[6]	1,051
Buildings and Improvements	[5],[6]	4,773
Costs Capitalized Subsequent to Acquisition	[5],[6]	443
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[6]	1,051
Buildings and Improvements	[5],[6]	5,216
Total	[5],[6]	6,267
Accumulated Depreciation	[5],[6]	$ 1,996
Year Acquired	[5],[6]	2007
Year Constructed	[5],[6]	2000
COLORADO | Industrial [Member] | Denver [Member] | Centennial Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5],[7]	$ 3,381
Initial Cost to the Company [Abstract]
Land	[5],[7]	750
Buildings and Improvements	[5],[7]	3,319
Costs Capitalized Subsequent to Acquisition	[5],[7]	1,853
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5],[7]	750
Buildings and Improvements	[5],[7]	5,172
Total	[5],[7]	5,922
Accumulated Depreciation	[5],[7]	$ 1,822
Year Acquired	[5],[7]	2007
Year Constructed	[5],[7]	1990
NEVADA | Industrial [Member] | Las Vegas [Member] | Arville Distribution Center [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	4,933
Buildings and Improvements	[5]	5,094
Costs Capitalized Subsequent to Acquisition	[5]	424
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	4,933
Buildings and Improvements	[5]	5,518
Total	[5]	10,451
Accumulated Depreciation	[5]	$ 1,823
Year Acquired	[5]	2009
Year Constructed	[5]	1997
NEVADA | Industrial [Member] | Las Vegas [Member] | Jones Corporate Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	13,068
Buildings and Improvements	[5]	26,325
Costs Capitalized Subsequent to Acquisition	[5]	1,682
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	13,068
Buildings and Improvements	[5]	28,007
Total	[5]	41,075
Accumulated Depreciation	[5]	$ 746
Year Acquired	[5]	2016
Year Constructed	[5]	2016
MISSISSIPPI | Industrial [Member] | Jackson area [Member] | Interchange Business Park [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	343
Buildings and Improvements	[5]	5,007
Costs Capitalized Subsequent to Acquisition	[5]	3,984
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	343
Buildings and Improvements	[5]	8,991
Total	[5]	9,334
Accumulated Depreciation	[5]	$ 5,589
Year Acquired	[5]	1997
Year Constructed	[5]	1981
MISSISSIPPI | Industrial [Member] | Jackson area [Member] | Tower Automotive [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	0
Buildings and Improvements	[5]	9,958
Costs Capitalized Subsequent to Acquisition	[5]	1,937
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	17
Buildings and Improvements	[5]	11,878
Total	[5]	11,895
Accumulated Depreciation	[5]	$ 4,926
Year Acquired	[5]	2001
Year Constructed	[5]	2002
MISSISSIPPI | Industrial [Member] | Jackson area [Member] | Metro Airport Commerce Center I [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[5]	$ 0
Initial Cost to the Company [Abstract]
Land	[5]	303
Buildings and Improvements	[5]	1,479
Costs Capitalized Subsequent to Acquisition	[5]	1,134
Gross Amount at which Carried at Close of Period [Abstract]
Land	[5]	303
Buildings and Improvements	[5]	2,613
Total	[5]	2,916
Accumulated Depreciation	[5]	$ 1,576
Year Acquired	[5]	2001
Year Constructed	[5]	2003
MISSISSIPPI | Industrial Development [Member] | Metro Airport Commerce Center II land [Member]
Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	[4]	$ 0
Initial Cost to the Company [Abstract]
Land	[4]	307
Buildings and Improvements	[4]	0
Costs Capitalized Subsequent to Acquisition	[4]	399
Gross Amount at which Carried at Close of Period [Abstract]
Land	[4]	307
Buildings and Improvements	[4]	399
Total	[4]	706
Accumulated Depreciation	[4]	$ 0
Year Acquired	[4]	2001
Year Constructed	[4]	n/a

[1] Changes in Real Estate Properties follow: Years Ended December 31,2017 2016 2015(In thousands)Balance at beginning of year $2,406,981 2,219,448 2,074,946Purchases of real estate properties 51,802 22,228 28,648Development of real estate properties124,938 203,765 95,032Improvements to real estate properties27,471 23,157 25,778Carrying amount of investments sold (32,787) (61,121) (4,750)Write-off of improvements (932) (496) (206)Balance at end of year (1) $2,577,473 2,406,981 2,219,448(1)Includes 20% noncontrolling interest in University Business Center of $3,217,000 and $6,853,000 at December 31, 2017 and 2016, respectively.Changes in the accumulated depreciation on real estate properties follow: Years Ended December 31,2017 2016 2015(In thousands)Balance at beginning of year $694,250 657,454 600,526Depreciation expense 69,010 63,793 59,882Accumulated depreciation on assets sold (12,735) (26,501) (2,748)Other (924) (496) (206)Balance at end of year $749,601 694,250 657,454

[2] The estimated aggregate cost of real estate properties at December 31, 2017 for federal income tax purposes was approximately $2,536,820,000 before estimated accumulated tax depreciation of $518,257,000. The federal income tax return for the year ended December 31, 2017, has not been filed and accordingly, this estimate is based on preliminary data.

[3] Includes 20% noncontrolling interest in University Business Center of $3,217,000 and $6,853,000 at December 31, 2017 and 2016, respectively.

[4] The Company transfers development projects to Real estate properties the earlier of 80% occupancy or one year after completion of the shell construction.

[5] The Company computes depreciation using the straight-line method over the estimated useful lives of the buildings (generally 40 years) and improvements (generally 3 to 15 years).

[6] EastGroup has a $42,315,000 non-recourse first mortgage loan with an insurance company secured by Arion 18, Beltway Crossing VI & VII, Commerce Park II & III, Concord, Interstate V-VII, Lakeview, Ridge Creek II, Southridge IV & V and World Houston 32.

[7] EastGroup has a $55,317,000 non-recourse first mortgage loan with an insurance company secured by 40th Avenue, Beltway Crossing V, Centennial Park, Executive Airport, Interchange Park I, Ocean View, Wetmore 5-8 and World Houston 26, 28, 29 & 30.

[8] EastGroup has a $49,580,000 non-recourse first mortgage loan with an insurance company secured by Dominguez, Industry I & III, Kingsview, Shaw, Walnut and Washington.

[9] EastGroup has a $50,161,000 non-recourse first mortgage loan with an insurance company secured by Colorado Crossing, Interstate I-III, Rojas, Steele Creek 1 & 2, Venture and World Houston 3-9.