Schedule III - Real Estate and Accumulated Depreciation (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 429,160
Initial Cost to Company
Land	109,239
Buildings	659,515
Costs Capitalized Subsequent to Acquisition	20,053
Increase (Decrease) in Net Investments	(45,072)
Gross Amount at which Carried at Close of Period (c)
Land	104,604
Buildings	639,131
Total	743,735	150,424	0
Accumulated Depreciation	10,875	824	0
Direct Financing Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	25,582
Initial Cost to Company
Land	3,023
Buildings	40,656
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	1,903
Gross Amount at which Carried at Close of Period (c)
Total	45,582
Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	66,970
Initial Cost to Company
Land	28,039
Buildings	104,540
Personal Property	1,017
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	28,040
Buildings	104,539
Personal Property	1,017
Total	133,596	0	0
Accumulated Depreciation	939	0	0
Office facility in Austin, TX | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	72,800
Initial Cost to Company
Land	29,215
Buildings	67,993
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	29,215
Buildings	67,993
Total	97,208
Accumulated Depreciation	2,880
Date of Construction	Dec. 31, 1993
Date Acquired	Aug. 31, 2013
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Retail facility in Zagreb, Croatia | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	8,236
Initial Cost to Company
Land	0
Buildings	10,828
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(1,179)
Gross Amount at which Carried at Close of Period (c)
Land	0
Buildings	9,649
Total	9,649
Accumulated Depreciation	293
Date of Construction	Dec. 31, 2005
Date Acquired	Dec. 31, 2013
Life on which Depreciation in Latest Statement of Income is Computed	34 years
Retail facility in Zagreb, Croatia | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	8,155
Initial Cost to Company
Land	0
Buildings	10,576
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(1,229)
Gross Amount at which Carried at Close of Period (c)
Land	0
Buildings	9,347
Total	9,347
Accumulated Depreciation	268
Date of Construction	Dec. 31, 2006
Date Acquired	Dec. 31, 2013
Life on which Depreciation in Latest Statement of Income is Computed	36 years
Retail facility in Zagreb, Croatia | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	7,999
Initial Cost to Company
Land	2,264
Buildings	10,676
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(1,504)
Gross Amount at which Carried at Close of Period (c)
Land	2,000
Buildings	9,436
Total	11,436
Accumulated Depreciation	296
Date of Construction	Dec. 31, 2006
Date Acquired	Dec. 31, 2013
Life on which Depreciation in Latest Statement of Income is Computed	34 years
Retail facility in Zadar, Croatia | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	8,991
Initial Cost to Company
Land	4,320
Buildings	10,536
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(1,728)
Gross Amount at which Carried at Close of Period (c)
Land	3,815
Buildings	9,313
Total	13,128
Accumulated Depreciation	316
Date of Construction	Dec. 31, 2007
Date Acquired	Dec. 31, 2013
Life on which Depreciation in Latest Statement of Income is Computed	33 years
Retail facility in Split, Croatia | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,656
Initial Cost to Company
Land	0
Buildings	3,161
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(367)
Gross Amount at which Carried at Close of Period (c)
Land	0
Buildings	2,794
Total	2,794
Accumulated Depreciation	107
Date of Construction	Dec. 31, 2001
Date Acquired	Dec. 31, 2013
Life on which Depreciation in Latest Statement of Income is Computed	27 years
Land in Madison, IN | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	426
Initial Cost to Company
Land	834
Buildings	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	834
Buildings	0
Total	834
Accumulated Depreciation	0
Date Acquired	Dec. 31, 2013
Industrial facility in Streetsboro, OH | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,257
Initial Cost to Company
Land	1,163
Buildings	3,393
Costs Capitalized Subsequent to Acquisition	719
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	1,163
Buildings	4,112
Total	5,275
Accumulated Depreciation	188
Date of Construction	Dec. 31, 1993
Date Acquired	Jan. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	21 years
Warehouse/distribution facility in University Park, IL | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	47,250
Initial Cost to Company
Land	13,748
Buildings	52,135
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	13,748
Buildings	52,135
Total	65,883
Accumulated Depreciation	1,752
Date of Construction	Dec. 31, 2003
Date Acquired	Feb. 28, 2014
Warehouse/distribution facility in University Park, IL | Real Estate Subject To Operating Lease | Minimum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	34 years
Warehouse/distribution facility in University Park, IL | Real Estate Subject To Operating Lease | Maximum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	36 years
Office facility in Norcross, GA | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,752
Initial Cost to Company
Land	1,044
Buildings	3,361
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	1,044
Buildings	3,361
Total	4,405
Accumulated Depreciation	106
Date of Construction	Dec. 31, 1999
Date Acquired	Feb. 28, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Office facility in Oslo, Norway | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	43,099
Initial Cost to Company
Land	14,362
Buildings	59,219
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(13,707)
Gross Amount at which Carried at Close of Period (c)
Land	11,686
Buildings	48,188
Total	59,874
Accumulated Depreciation	1,008
Date of Construction	Dec. 31, 2013
Date Acquired	Feb. 28, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Office facility in Warsaw, Poland | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	64,852
Initial Cost to Company
Land	0
Buildings	112,676
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(13,091)
Gross Amount at which Carried at Close of Period (c)
Land	0
Buildings	99,585
Total	99,585
Accumulated Depreciation	1,878
Date of Construction	Dec. 31, 2008
Date Acquired	Mar. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Industrial facility in Columbus, GA | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	4,894
Initial Cost to Company
Land	448
Buildings	5,841
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	448
Buildings	5,841
Total	6,289
Accumulated Depreciation	147
Date of Construction	Dec. 31, 1995
Date Acquired	Apr. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	30 years
Office facility in Farmington Hills, MI | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	7,325
Initial Cost to Company
Land	2,251
Buildings	3,390
Costs Capitalized Subsequent to Acquisition	672
Increase (Decrease) in Net Investments	47
Gross Amount at which Carried at Close of Period (c)
Land	2,251
Buildings	4,109
Total	6,360
Accumulated Depreciation	72
Date of Construction	Dec. 31, 2001
Date Acquired	May 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Industrial facility in Surprise, AZ | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	2,322
Initial Cost to Company
Land	298
Buildings	2,347
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	298
Buildings	2,347
Total	2,645
Accumulated Depreciation	57
Date of Construction	Dec. 31, 1998
Date Acquired	May 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	35 years
Industrial facility in Temple, GA | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	6,714
Initial Cost to Company
Land	381
Buildings	6,469
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	381
Buildings	6,469
Total	6,850
Accumulated Depreciation	139
Date of Construction	Dec. 31, 2007
Date Acquired	May 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	33 years
Land in Houston, TX | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1,280
Initial Cost to Company
Land	1,675
Buildings	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	1,675
Buildings	0
Total	1,675
Accumulated Depreciation	0
Date Acquired	May 31, 2014
Land in Chicago, IL | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	2,024
Initial Cost to Company
Land	3,036
Buildings	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	3,036
Buildings	0
Total	3,036
Accumulated Depreciation	0
Date Acquired	May 31, 2014
Warehouse/distribution facility in Jonesville, SC | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,995
Buildings	14,644
Costs Capitalized Subsequent to Acquisition	18,662
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	2,995
Buildings	33,306
Total	36,301
Accumulated Depreciation	400
Date of Construction	Dec. 31, 1997
Date Acquired	Jun. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	28 years
Industrial facility in Ayr, United Kingdom | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	2,532
Initial Cost to Company
Land	1,150
Buildings	3,228
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(312)
Gross Amount at which Carried at Close of Period (c)
Land	1,068
Buildings	2,998
Total	4,066
Accumulated Depreciation	53
Date of Construction	Dec. 31, 1950
Date Acquired	Aug. 31, 2014
Industrial facility in Ayr, United Kingdom | Real Estate Subject To Operating Lease | Minimum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	15 years
Industrial facility in Ayr, United Kingdom | Real Estate Subject To Operating Lease | Maximum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	32 years
Industrial facility in Bathgate, United Kingdom | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1,688
Initial Cost to Company
Land	627
Buildings	1,852
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(177)
Gross Amount at which Carried at Close of Period (c)
Land	582
Buildings	1,720
Total	2,302
Accumulated Depreciation	23
Date of Construction	Dec. 31, 2009
Date Acquired	Aug. 31, 2014
Industrial facility in Bathgate, United Kingdom | Real Estate Subject To Operating Lease | Minimum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	20 years
Industrial facility in Bathgate, United Kingdom | Real Estate Subject To Operating Lease | Maximum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	35 years
Industrial facility in Dundee, United Kingdom | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1,604
Initial Cost to Company
Land	384
Buildings	2,305
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(192)
Gross Amount at which Carried at Close of Period (c)
Land	357
Buildings	2,140
Total	2,497
Accumulated Depreciation	33
Date of Construction	Dec. 31, 2008
Date Acquired	Aug. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	22 years
Industrial facility in Dunfermline, United Kingdom | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	928
Initial Cost to Company
Land	294
Buildings	808
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(79)
Gross Amount at which Carried at Close of Period (c)
Land	273
Buildings	750
Total	1,023
Accumulated Depreciation	16
Date of Construction	Dec. 31, 1990
Date Acquired	Aug. 31, 2014
Industrial facility in Dunfermline, United Kingdom | Real Estate Subject To Operating Lease | Minimum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	13 years
Industrial facility in Dunfermline, United Kingdom | Real Estate Subject To Operating Lease | Maximum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	35 years
Industrial facility in Invergordon, United Kingdom | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	473
Initial Cost to Company
Land	261
Buildings	549
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(57)
Gross Amount at which Carried at Close of Period (c)
Land	243
Buildings	510
Total	753
Accumulated Depreciation	8
Date of Construction	Dec. 31, 2006
Date Acquired	Aug. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	22 years
Industrial facility in Livingston, United Kingdom | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	2,026
Initial Cost to Company
Land	447
Buildings	3,015
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(247)
Gross Amount at which Carried at Close of Period (c)
Land	415
Buildings	2,800
Total	3,215
Accumulated Depreciation	34
Date of Construction	Dec. 31, 2008
Date Acquired	Aug. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	29 years
Industrial facility in Livingston, United Kingdom | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	2,152
Initial Cost to Company
Land	0
Buildings	3,360
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(161)
Gross Amount at which Carried at Close of Period (c)
Land	0
Buildings	3,199
Total	3,199
Accumulated Depreciation	35
Date of Construction	Dec. 31, 1997
Date Acquired	Sep. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	24 years
Office facility in Warstein, Germany | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	13,756
Initial Cost to Company
Land	281
Buildings	15,671
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(668)
Gross Amount at which Carried at Close of Period (c)
Land	270
Buildings	15,014
Total	15,284
Accumulated Depreciation	98
Date of Construction	Dec. 31, 2011
Date Acquired	Sep. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Warehouse/distribution facility in Albany, GA | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	6,704
Initial Cost to Company
Land	1,141
Buildings	5,997
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	1,141
Buildings	5,997
Total	7,138
Accumulated Depreciation	93
Date of Construction	Dec. 31, 1977
Date Acquired	Oct. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	14 years
Office facility in Stavanger, Norway | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	48,151
Initial Cost to Company
Land	8,276
Buildings	80,476
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(8,637)
Gross Amount at which Carried at Close of Period (c)
Land	7,470
Buildings	72,645
Total	80,115
Accumulated Depreciation	305
Date of Construction	Dec. 31, 2012
Date Acquired	Oct. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Office facility in Eagan, MN | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,189
Buildings	11,279
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	1,189
Buildings	11,279
Total	12,468
Accumulated Depreciation	49
Date of Construction	Dec. 31, 2013
Date Acquired	Nov. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Office facility in Plymouth, MN | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	27,650
Initial Cost to Company
Land	3,990
Buildings	30,320
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	3,990
Buildings	30,320
Total	34,310
Accumulated Depreciation	109
Date of Construction	Dec. 31, 1982
Date Acquired	Nov. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Industrial facility in Dallas, TX | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1,680
Initial Cost to Company
Land	512
Buildings	1,283
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	512
Buildings	1,283
Total	1,795
Accumulated Depreciation	7
Date of Construction	Dec. 31, 1990
Date Acquired	Nov. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	26 years
Industrial facility in Dallas, TX | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	790
Initial Cost to Company
Land	509
Buildings	340
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	509
Buildings	340
Total	849
Accumulated Depreciation	4
Date of Construction	Dec. 31, 1990
Date Acquired	Nov. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	20 years
Industrial facility in Dallas, TX | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	281
Initial Cost to Company
Land	128
Buildings	204
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	128
Buildings	204
Total	332
Accumulated Depreciation	2
Date of Construction	Dec. 31, 1990
Date Acquired	Nov. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	21 years
Industrial facility in Dallas, TX | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1,217
Initial Cost to Company
Land	360
Buildings	1,120
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	360
Buildings	1,120
Total	1,480
Accumulated Depreciation	6
Date of Construction	Dec. 31, 1990
Date Acquired	Nov. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	29 years
Industrial facility in Fort Worth, TX | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1,232
Initial Cost to Company
Land	809
Buildings	671
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	809
Buildings	671
Total	1,480
Accumulated Depreciation	5
Date of Construction	Dec. 31, 2008
Date Acquired	Nov. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	30 years
Industrial facility in Dunfermline, United Kingdom | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,162
Buildings	5,631
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(60)
Gross Amount at which Carried at Close of Period (c)
Land	1,152
Buildings	5,581
Total	6,733
Accumulated Depreciation	27
Date of Construction	Dec. 31, 2000
Date Acquired	Nov. 30, 2014
Industrial facility in Dunfermline, United Kingdom | Real Estate Subject To Operating Lease | Minimum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	23 years
Industrial facility in Dunfermline, United Kingdom | Real Estate Subject To Operating Lease | Maximum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	31 years
Industrial facility in Durham, United Kingdom | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	207
Buildings	2,108
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(21)
Gross Amount at which Carried at Close of Period (c)
Land	205
Buildings	2,089
Total	2,294
Accumulated Depreciation	7
Date of Construction	Dec. 31, 1998
Date Acquired	Nov. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	35 years
Office facility in Rotterdam, Netherlands | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,247
Buildings	27,149
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(765)
Gross Amount at which Carried at Close of Period (c)
Land	2,189
Buildings	26,442
Total	28,631
Accumulated Depreciation	27
Date of Construction	Dec. 31, 1960
Date Acquired	Dec. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Office facility in Rotterdam, Netherlands | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,246
Buildings	27,135
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(764)
Gross Amount at which Carried at Close of Period (c)
Land	2,187
Buildings	26,430
Total	28,617
Accumulated Depreciation	27
Date of Construction	Dec. 31, 1960
Date Acquired	Dec. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Industrial facility in Edinburgh, United Kingdom | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	938
Buildings	2,842
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(34)
Gross Amount at which Carried at Close of Period (c)
Land	929
Buildings	2,817
Total	3,746
Accumulated Depreciation	0
Date of Construction	Dec. 31, 1985
Date Acquired	Dec. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	35 years
Hotel in Albion, Mauritius | Real Estate Subject To Operating Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	19,264
Initial Cost to Company
Land	4,047
Buildings	54,927
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	(140)
Gross Amount at which Carried at Close of Period (c)
Land	4,037
Buildings	54,797
Total	58,834
Accumulated Depreciation	0
Date of Construction	Dec. 31, 2007
Date Acquired	Dec. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Industrial facility in Logansport, IN | Direct Financing Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	4,437
Initial Cost to Company
Land	455
Buildings	7,689
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Total	8,144
Date of Construction	Dec. 31, 1990
Date Acquired	Dec. 31, 2013
Industrial facility in Madison, IN | Direct Financing Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1,911
Initial Cost to Company
Land	356
Buildings	3,382
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Total	3,738
Date of Construction	Dec. 31, 2000
Date Acquired	Dec. 31, 2013
Industrial facility in Marion, SC | Direct Financing Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	5,205
Initial Cost to Company
Land	753
Buildings	9,430
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Total	10,183
Date of Construction	Dec. 31, 1968
Date Acquired	Dec. 31, 2013
Industrial facility in Fraser, MI | Direct Financing Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	2,172
Initial Cost to Company
Land	542
Buildings	3,840
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Total	4,382
Date of Construction	Dec. 31, 1984
Date Acquired	Mar. 31, 2014
Industrial facility in Warren, MI | Direct Financing Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1,814
Initial Cost to Company
Land	429
Buildings	3,231
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Total	3,660
Date of Construction	Dec. 31, 1947
Date Acquired	Mar. 31, 2014
Industrial facility in Columbus, GA | Direct Financing Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	2,845
Initial Cost to Company
Land	488
Buildings	2,947
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	1,479
Gross Amount at which Carried at Close of Period (c)
Total	4,914
Date of Construction	Dec. 31, 1965
Date Acquired	Apr. 30, 2014
Industrial facility in Houston, TX | Direct Financing Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	1,222
Initial Cost to Company
Land	0
Buildings	1,573
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	26
Gross Amount at which Carried at Close of Period (c)
Total	1,599
Date of Construction	Dec. 31, 1973
Date Acquired	May 31, 2014
Warehouse/distribution facility in Chicago, IL | Direct Financing Lease
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	5,976
Initial Cost to Company
Land	0
Buildings	8,564
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	398
Gross Amount at which Carried at Close of Period (c)
Total	8,962
Date of Construction	Dec. 31, 1942
Date Acquired	May 31, 2014
Tucker, GA | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	14,140
Initial Cost to Company
Land	4,288
Buildings	15,201
Personal Property	237
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	4,288
Buildings	15,201
Personal Property	237
Total	19,726
Accumulated Depreciation	83
Date of Construction	Dec. 31, 2002
Date Acquired	Oct. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Atlanta, GA | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	15,330
Initial Cost to Company
Land	4,513
Buildings	16,404
Personal Property	780
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	4,513
Buildings	16,404
Personal Property	780
Total	21,697
Accumulated Depreciation	101
Date of Construction	Dec. 31, 1990
Date Acquired	Oct. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	38 years
Kissimmee, FL | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	7,000
Initial Cost to Company
Land	3,306
Buildings	7,190
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	3,306
Buildings	7,190
Personal Property	0
Total	10,496
Accumulated Depreciation	198
Date of Construction	Dec. 31, 2005
Date Acquired	Jan. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	38 years
St. Petersburg, FL | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	7,500
Initial Cost to Company
Land	3,258
Buildings	7,128
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	3,258
Buildings	7,128
Personal Property	0
Total	10,386
Accumulated Depreciation	184
Date of Construction	Dec. 31, 2007
Date Acquired	Jan. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Corpus Christi, TX | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	2,725
Initial Cost to Company
Land	340
Buildings	3,428
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	340
Buildings	3,428
Personal Property	0
Total	3,768
Accumulated Depreciation	63
Date of Construction	Dec. 31, 1998
Date Acquired	Jul. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	28 years
Kailua-Kona, HI | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,770
Initial Cost to Company
Land	1,356
Buildings	3,699
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	1,356
Buildings	3,699
Personal Property	0
Total	5,055
Accumulated Depreciation	54
Date of Construction	Dec. 31, 1991
Date Acquired	Jul. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	32 years
Miami, FL | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,034
Initial Cost to Company
Land	1,915
Buildings	1,894
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	1,915
Buildings	1,894
Personal Property	0
Total	3,809
Accumulated Depreciation	27
Date of Construction	Dec. 31, 1986
Date Acquired	Aug. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	33 years
Palm Desert, CA | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	6,890
Initial Cost to Company
Land	669
Buildings	8,899
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	669
Buildings	8,899
Personal Property	0
Total	9,568
Accumulated Depreciation	93
Date of Construction	Dec. 31, 2006
Date Acquired	Aug. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	40 years
Columbia, SC | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,056
Initial Cost to Company
Land	1,065
Buildings	2,742
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	1,065
Buildings	2,742
Personal Property	0
Total	3,807
Accumulated Depreciation	32
Date of Construction	Dec. 31, 1988
Date Acquired	Sep. 30, 2014
Columbia, SC | Operating Real Estate | Minimum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	27 years
Columbia, SC | Operating Real Estate | Maximum
Gross Amount at which Carried at Close of Period (c)
Life on which Depreciation in Latest Statement of Income is Computed	30 years
Kailua-Kona, HI | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,525
Initial Cost to Company
Land	2,263
Buildings	2,704
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	2,263
Buildings	2,704
Personal Property	0
Total	4,967
Accumulated Depreciation	22
Date of Construction	Dec. 31, 2004
Date Acquired	Oct. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	32 years
Pompano Beach, FL | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	700
Buildings	3,436
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	700
Buildings	3,436
Personal Property	0
Total	4,136
Accumulated Depreciation	24
Date of Construction	Dec. 31, 1992
Date Acquired	Oct. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	28 years
Jensen Beach, FL | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,596
Buildings	5,963
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	1,596
Buildings	5,963
Personal Property	0
Total	7,559
Accumulated Depreciation	25
Date of Construction	Dec. 31, 1989
Date Acquired	Nov. 30, 2014
Life on which Depreciation in Latest Statement of Income is Computed	37 years
Dickinson, TX | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,680
Buildings	7,165
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	1,680
Buildings	7,165
Personal Property	0
Total	8,845
Accumulated Depreciation	14
Date of Construction	Dec. 31, 2001
Date Acquired	Dec. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	35 years
Humble, TX | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	341
Buildings	6,582
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	341
Buildings	6,582
Personal Property	0
Total	6,923
Accumulated Depreciation	8
Date of Construction	Dec. 31, 2009
Date Acquired	Dec. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	39 years
Temecula, CA | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	449
Buildings	8,574
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	449
Buildings	8,574
Personal Property	0
Total	9,023
Accumulated Depreciation	11
Date of Construction	Dec. 31, 2006
Date Acquired	Dec. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	37 years
Cumming, GA | Operating Real Estate
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	300
Buildings	3,531
Personal Property	0
Costs Capitalized Subsequent to Acquisition	0
Increase (Decrease) in Net Investments	0
Gross Amount at which Carried at Close of Period (c)
Land	301
Buildings	3,530
Personal Property	0
Total	3,831
Accumulated Depreciation	$ 0
Date of Construction	Dec. 31, 1994
Date Acquired	Dec. 31, 2014
Life on which Depreciation in Latest Statement of Income is Computed	27 years