SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	$ 598,660
Initial Cost to Company
Land	769,100
Buildings and Equipment	4,798,293
Costs Capitalized Subsequent to Acquisition	678,281
Impairment/Write Downs	(517,231)
Cost Amount Carried at Close of Period
Land	714,238
Buildings and Improvements	5,014,205
Total	5,728,443	5,537,165	7,829,409	7,244,232
Accumulated Depreciation	1,030,445	895,059	1,007,606	934,170
2501 20th Place South, Birmingham, AL | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	10,267
Initial Cost to Company
Land	4,000
Buildings and Equipment	19,604
Costs Capitalized Subsequent to Acquisition	511
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	4,002
Buildings and Improvements	20,113
Total	24,115
Accumulated Depreciation	4,153
420 20th Street North, Birmingham, AL | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,740
Buildings and Equipment	49,565
Costs Capitalized Subsequent to Acquisition	4,397
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,740
Buildings and Improvements	53,962
Total	55,702
Accumulated Depreciation	4,724
Inverness Center, Birmingham, AL | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	8,525
Buildings and Equipment	38,367
Costs Capitalized Subsequent to Acquisition	4,807
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	8,525
Buildings and Improvements	43,174
Total	51,699
Accumulated Depreciation	5,214
785 Schilinger Road South, Mobile, AL | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,540
Buildings and Equipment	9,732
Costs Capitalized Subsequent to Acquisition	(3)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,540
Buildings and Improvements	9,729
Total	11,269
Accumulated Depreciation	1,747
Arizona Center, Phoenix, AZ | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	22,614
Buildings and Equipment	64,105
Costs Capitalized Subsequent to Acquisition	11,157
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	22,614
Buildings and Improvements	75,262
Total	97,876
Accumulated Depreciation	6,970
4 South 84th Avenue, Tolleson, AZ | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,257
Buildings and Equipment	9,210
Costs Capitalized Subsequent to Acquisition	915
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,257
Buildings and Improvements	10,125
Total	11,382
Accumulated Depreciation	2,639
One South Church Avenue, Tucson, AZ | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,261
Buildings and Equipment	26,357
Costs Capitalized Subsequent to Acquisition	3,762
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	3,262
Buildings and Improvements	30,118
Total	33,380
Accumulated Depreciation	9,129
Parkshore Plaza, Folsom, CA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	41,275
Initial Cost to Company
Land	4,370
Buildings and Equipment	41,749
Costs Capitalized Subsequent to Acquisition	510
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	4,370
Buildings and Improvements	42,259
Total	46,629
Accumulated Depreciation	3,782
Leased Land, Gonzalez, CA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	18,941
Buildings and Equipment	9,060
Costs Capitalized Subsequent to Acquisition	3,824
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	18,940
Buildings and Improvements	12,885
Total	31,825
Accumulated Depreciation	2,276
Sky Park Centre, San Diego, CA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	936
Buildings and Equipment	8,094
Costs Capitalized Subsequent to Acquisition	756
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	935
Buildings and Improvements	8,851
Total	9,786
Accumulated Depreciation	3,029
Sorrento Valley Business Park, San Diego, CA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,425
Buildings and Equipment	12,842
Costs Capitalized Subsequent to Acquisition	3,308
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,425
Buildings and Improvements	16,150
Total	17,575
Accumulated Depreciation	6,951
1921 E. Alton Avenue, Santa Ana, CA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,363
Buildings and Equipment	10,158
Costs Capitalized Subsequent to Acquisition	1
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,362
Buildings and Improvements	10,160
Total	11,522
Accumulated Depreciation	2,908
9110 East Nichols Avenue, Centennial, CO | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,708
Buildings and Equipment	14,616
Costs Capitalized Subsequent to Acquisition	3,962
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,708
Buildings and Improvements	18,578
Total	20,286
Accumulated Depreciation	5,739
7450 Campus Drive, Colorado Springs, CO | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,250
Buildings and Equipment	7,982
Costs Capitalized Subsequent to Acquisition	249
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,250
Buildings and Improvements	8,231
Total	9,481
Accumulated Depreciation	962
1225 Seventeenth Street, Denver, CO | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	22,400
Buildings and Equipment	110,090
Costs Capitalized Subsequent to Acquisition	12,616
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	22,400
Buildings and Improvements	122,706
Total	145,106
Accumulated Depreciation	17,456
5073, 5075, & 5085 S. Syracuse Street, Denver, CO | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	4,720
Buildings and Equipment	58,890
Costs Capitalized Subsequent to Acquisition	0
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	4,720
Buildings and Improvements	58,890
Total	63,610
Accumulated Depreciation	6,871
1601 Dry Creek Drive, Longmont, CO | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,714
Buildings and Equipment	24,397
Costs Capitalized Subsequent to Acquisition	4,244
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	3,715
Buildings and Improvements	28,640
Total	32,355
Accumulated Depreciation	8,166
129 Worthington Ridge Road, Berlin, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,770
Buildings and Equipment	8,409
Costs Capitalized Subsequent to Acquisition	1,161
Impairment/Write Downs	(7,088)
Cost Amount Carried at Close of Period
Land	1,114
Buildings and Improvements	4,138
Total	5,252
Accumulated Depreciation	714
97 Newberry Road, East Windsor, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	6,819
Initial Cost to Company
Land	2,960
Buildings and Equipment	12,360
Costs Capitalized Subsequent to Acquisition	30
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,943
Buildings and Improvements	12,407
Total	15,350
Accumulated Depreciation	2,555
185 Asylum Street, Hartford, CT | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	15,930
Buildings and Equipment	60,312
Costs Capitalized Subsequent to Acquisition	1,856
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	15,930
Buildings and Improvements	62,168
Total	78,098
Accumulated Depreciation	4,247
599 Research Parkway, Meriden, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	768
Buildings and Equipment	6,164
Costs Capitalized Subsequent to Acquisition	1,160
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	768
Buildings and Improvements	7,324
Total	8,092
Accumulated Depreciation	1,938
33 Stiles Lane, North Haven, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	3,132
Initial Cost to Company
Land	2,090
Buildings and Equipment	9,141
Costs Capitalized Subsequent to Acquisition	216
Impairment/Write Downs	(1,654)
Cost Amount Carried at Close of Period
Land	1,799
Buildings and Improvements	7,994
Total	9,793
Accumulated Depreciation	1,949
181 Marsh Hill Road, Orange, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,270
Buildings and Equipment	7,943
Costs Capitalized Subsequent to Acquisition	581
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,271
Buildings and Improvements	8,523
Total	10,794
Accumulated Depreciation	1,659
101 Barnes Road, Wallingford, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	367
Buildings and Equipment	3,301
Costs Capitalized Subsequent to Acquisition	1,153
Impairment/Write Downs	(3,398)
Cost Amount Carried at Close of Period
Land	154
Buildings and Improvements	1,269
Total	1,423
Accumulated Depreciation	39
15 Sterling Drive, Wallingford, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,010
Buildings and Equipment	7,352
Costs Capitalized Subsequent to Acquisition	235
Impairment/Write Downs	(4,792)
Cost Amount Carried at Close of Period
Land	1,139
Buildings and Improvements	3,666
Total	4,805
Accumulated Depreciation	116
35 Thorpe Avenue, Wallingford, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	640
Buildings and Equipment	10,017
Costs Capitalized Subsequent to Acquisition	1,276
Impairment/Write Downs	(5,431)
Cost Amount Carried at Close of Period
Land	518
Buildings and Improvements	5,984
Total	6,502
Accumulated Depreciation	185
50 Barnes Industrial Road North, Wallingford, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,300
Buildings and Equipment	8,621
Costs Capitalized Subsequent to Acquisition	2,955
Impairment/Write Downs	(2,472)
Cost Amount Carried at Close of Period
Land	1,865
Buildings and Improvements	9,539
Total	11,404
Accumulated Depreciation	2,457
5-9 Barnes Industrial Road, Wallingford, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	740
Buildings and Equipment	2,552
Costs Capitalized Subsequent to Acquisition	218
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	741
Buildings and Improvements	2,769
Total	3,510
Accumulated Depreciation	547
860 North Main Street, Wallingford, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	680
Buildings and Equipment	3,144
Costs Capitalized Subsequent to Acquisition	941
Impairment/Write Downs	(915)
Cost Amount Carried at Close of Period
Land	537
Buildings and Improvements	3,313
Total	3,850
Accumulated Depreciation	919
One Barnes Industrial Road South, Wallingford, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	800
Buildings and Equipment	2,251
Costs Capitalized Subsequent to Acquisition	6
Impairment/Write Downs	(691)
Cost Amount Carried at Close of Period
Land	631
Buildings and Improvements	1,735
Total	2,366
Accumulated Depreciation	466
Village Lane, Wallingford, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,090
Buildings and Equipment	4,448
Costs Capitalized Subsequent to Acquisition	1,078
Impairment/Write Downs	(2,600)
Cost Amount Carried at Close of Period
Land	750
Buildings and Improvements	3,266
Total	4,016
Accumulated Depreciation	109
100 Northfield Drive, Windsor, CT | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,376
Buildings and Equipment	11,212
Costs Capitalized Subsequent to Acquisition	2,791
Impairment/Write Downs	(2,093)
Cost Amount Carried at Close of Period
Land	1,183
Buildings and Improvements	12,103
Total	13,286
Accumulated Depreciation	4,234
1250 H Street, NW, Washington, DC | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	5,975
Buildings and Equipment	53,778
Costs Capitalized Subsequent to Acquisition	5,272
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	5,975
Buildings and Improvements	59,050
Total	65,025
Accumulated Depreciation	24,069
Georgetown-Green and Harris Buildings, Washington, DC | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	24,000
Buildings and Equipment	35,979
Costs Capitalized Subsequent to Acquisition	44
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	24,000
Buildings and Improvements	36,023
Total	60,023
Accumulated Depreciation	4,797
802 Delaware Avenue, Wilmington, DE | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	4,409
Buildings and Equipment	39,681
Costs Capitalized Subsequent to Acquisition	10,530
Impairment/Write Downs	(11,156)
Cost Amount Carried at Close of Period
Land	3,390
Buildings and Improvements	40,074
Total	43,464
Accumulated Depreciation	21,964
6600 North Military Trail, Boca Raton, FL | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	15,900
Buildings and Equipment	129,790
Costs Capitalized Subsequent to Acquisition	0
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	15,900
Buildings and Improvements	129,790
Total	145,690
Accumulated Depreciation	12,979
225 Water Street, Jacksonville, FL | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	40,059
Initial Cost to Company
Land	1,480
Buildings and Equipment	43,770
Costs Capitalized Subsequent to Acquisition	4,482
Impairment/Write Downs	(29,720)
Cost Amount Carried at Close of Period
Land	871
Buildings and Improvements	19,141
Total	20,012
Accumulated Depreciation	338
The Exchange, Atlanta, GA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,576
Buildings and Equipment	13,134
Costs Capitalized Subsequent to Acquisition	3,170
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,578
Buildings and Improvements	16,302
Total	17,880
Accumulated Depreciation	4,376
9040 Roswell Road, Atlanta, GA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,459
Buildings and Equipment	18,549
Costs Capitalized Subsequent to Acquisition	2,213
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,463
Buildings and Improvements	20,758
Total	23,221
Accumulated Depreciation	5,425
Executive Park, Atlanta, GA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	13,729
Buildings and Equipment	78,032
Costs Capitalized Subsequent to Acquisition	5,980
Impairment/Write Downs	(54,310)
Cost Amount Carried at Close of Period
Land	10,954
Buildings and Improvements	32,477
Total	43,431
Accumulated Depreciation	13,947
3920 Arkwright Road, Macon, GA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,674
Buildings and Equipment	19,311
Costs Capitalized Subsequent to Acquisition	2,892
Impairment/Write Downs	(4,383)
Cost Amount Carried at Close of Period
Land	2,243
Buildings and Improvements	18,251
Total	20,494
Accumulated Depreciation	4,825
1775 West Oak Commons Court, Marietta, GA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,190
Buildings and Equipment	6,586
Costs Capitalized Subsequent to Acquisition	1,217
Impairment/Write Downs	(1,689)
Cost Amount Carried at Close of Period
Land	1,814
Buildings and Improvements	6,490
Total	8,304
Accumulated Depreciation	1,458
633 Ahua Street, Honolulu, HI | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,256
Buildings and Equipment	3
Costs Capitalized Subsequent to Acquisition	18,050
Impairment/Write Downs	(2,912)
Cost Amount Carried at Close of Period
Land	1,100
Buildings and Improvements	15,297
Total	16,397
Accumulated Depreciation	3,397
625 Crane Street, Aurora, IL | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,180
Buildings and Equipment	3,411
Costs Capitalized Subsequent to Acquisition	(2)
Impairment/Write Downs	(2,978)
Cost Amount Carried at Close of Period
Land	533
Buildings and Improvements	1,078
Total	1,611
Accumulated Depreciation	56
905 Meridian Lake Drive, Aurora, IL | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,740
Buildings and Equipment	13,586
Costs Capitalized Subsequent to Acquisition	52
Impairment/Write Downs	(3,069)
Cost Amount Carried at Close of Period
Land	1,431
Buildings and Improvements	10,878
Total	12,309
Accumulated Depreciation	2,609
1200 Lakeside Drive, Bannockburn, IL | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	5,846
Buildings and Equipment	48,568
Costs Capitalized Subsequent to Acquisition	10,623
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	5,858
Buildings and Improvements	59,179
Total	65,037
Accumulated Depreciation	12,964
Illinois Center, Chicago, IL | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	142,666
Initial Cost to Company
Land	66,757
Buildings and Equipment	239,143
Costs Capitalized Subsequent to Acquisition	27,735
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	66,757
Buildings and Improvements	266,878
Total	333,635
Accumulated Depreciation	23,133
600 West Chicago Avenue, Chicago, IL | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	34,980
Buildings and Equipment	315,643
Costs Capitalized Subsequent to Acquisition	4,314
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	34,980
Buildings and Improvements	319,957
Total	354,937
Accumulated Depreciation	27,356
8750 Bryn Mawr Avenue, Chicago, IL | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	6,600
Buildings and Equipment	77,764
Costs Capitalized Subsequent to Acquisition	6,460
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	6,600
Buildings and Improvements	84,224
Total	90,824
Accumulated Depreciation	9,137
1717 Deerfield Road, Deerfield, IL | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,515
Buildings and Equipment	20,186
Costs Capitalized Subsequent to Acquisition	2,540
Impairment/Write Downs	(16,742)
Cost Amount Carried at Close of Period
Land	985
Buildings and Improvements	7,514
Total	8,499
Accumulated Depreciation	213
1955 West Field Court, Lake Forest, IL | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,258
Buildings and Equipment	9,630
Costs Capitalized Subsequent to Acquisition	2,991
Impairment/Write Downs	(1,954)
Cost Amount Carried at Close of Period
Land	1,065
Buildings and Improvements	10,860
Total	11,925
Accumulated Depreciation	3,025
11350 North Meridian Street, Carmel, IN | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	667
Buildings and Equipment	5,815
Costs Capitalized Subsequent to Acquisition	1,654
Impairment/Write Downs	(5,415)
Cost Amount Carried at Close of Period
Land	270
Buildings and Improvements	2,451
Total	2,721
Accumulated Depreciation	125
101-115 W. Washington Street, Indianapolis, IN | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	7,495
Buildings and Equipment	60,465
Costs Capitalized Subsequent to Acquisition	21,160
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	7,496
Buildings and Improvements	81,624
Total	89,120
Accumulated Depreciation	20,875
111 Monument Circle, Indianapolis, IN | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	116,000
Initial Cost to Company
Land	9,670
Buildings and Equipment	158,085
Costs Capitalized Subsequent to Acquisition	5,014
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	9,670
Buildings and Improvements	163,099
Total	172,769
Accumulated Depreciation	8,737
5015 S. Water Circle, Wichita, KS | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,720
Buildings and Equipment	2,029
Costs Capitalized Subsequent to Acquisition	1,125
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,719
Buildings and Improvements	3,155
Total	5,874
Accumulated Depreciation	731
701 Poydras Street, New Orleans, LA | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	9,100
Buildings and Equipment	78,540
Costs Capitalized Subsequent to Acquisition	9,971
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	9,100
Buildings and Improvements	88,511
Total	97,611
Accumulated Depreciation	7,252
109 Brookline Avenue, Boston, MA | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,168
Buildings and Equipment	30,397
Costs Capitalized Subsequent to Acquisition	11,492
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	3,168
Buildings and Improvements	41,889
Total	45,057
Accumulated Depreciation	17,245
Adams Place, Braintree/Quincy, MA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	4,145
Buildings and Equipment	27,742
Costs Capitalized Subsequent to Acquisition	8,420
Impairment/Write Downs	(20,532)
Cost Amount Carried at Close of Period
Land	2,956
Buildings and Improvements	16,819
Total	19,775
Accumulated Depreciation	853
Cabot Business Park, Mansfield, MA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,733
Buildings and Equipment	23,657
Costs Capitalized Subsequent to Acquisition	5,376
Impairment/Write Downs	(17,038)
Cost Amount Carried at Close of Period
Land	1,654
Buildings and Improvements	13,074
Total	14,728
Accumulated Depreciation	556
Cabot Business Park Land, Mansfield, MA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,033
Buildings and Equipment	0
Costs Capitalized Subsequent to Acquisition	0
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,033
Buildings and Improvements	0
Total	1,033
Accumulated Depreciation	0
2300 Crown Colony Drive, Quincy, MA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	774
Buildings and Equipment	5,815
Costs Capitalized Subsequent to Acquisition	1,591
Impairment/Write Downs	(1,036)
Cost Amount Carried at Close of Period
Land	678
Buildings and Improvements	6,466
Total	7,144
Accumulated Depreciation	2,419
Myles Standish Industrial Park, Taunton, MA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,013
Buildings and Equipment	8,728
Costs Capitalized Subsequent to Acquisition	2,214
Impairment/Write Downs	(4,077)
Cost Amount Carried at Close of Period
Land	686
Buildings and Improvements	7,192
Total	7,878
Accumulated Depreciation	135
340 Thompson Road, Webster, MA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	315
Buildings and Equipment	2,834
Costs Capitalized Subsequent to Acquisition	39
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	315
Buildings and Improvements	2,873
Total	3,188
Accumulated Depreciation	1,270
100 South Charles Street, Baltimore, MD | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	0
Buildings and Equipment	12,430
Costs Capitalized Subsequent to Acquisition	3,931
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	0
Buildings and Improvements	16,361
Total	16,361
Accumulated Depreciation	6,870
111 Market Place, Baltimore, MD | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	6,328
Buildings and Equipment	54,645
Costs Capitalized Subsequent to Acquisition	15,070
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	6,328
Buildings and Improvements	69,715
Total	76,043
Accumulated Depreciation	21,931
25 S. Charles Street, Baltimore, MD | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,830
Buildings and Equipment	22,996
Costs Capitalized Subsequent to Acquisition	12,677
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,830
Buildings and Improvements	35,673
Total	38,503
Accumulated Depreciation	11,158
820 W. Diamond, Gaithersburg, MD | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	4,381
Buildings and Equipment	18,798
Costs Capitalized Subsequent to Acquisition	10,193
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	4,461
Buildings and Improvements	28,911
Total	33,372
Accumulated Depreciation	10,230
6710 Oxon Hill, Oxon Hill, MD | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,181
Buildings and Equipment	13,653
Costs Capitalized Subsequent to Acquisition	2,998
Impairment/Write Downs	(2,300)
Cost Amount Carried at Close of Period
Land	2,725
Buildings and Improvements	14,807
Total	17,532
Accumulated Depreciation	7,032
Danac Stiles Business Park, Rockville, MD | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	7,638
Buildings and Equipment	62,572
Costs Capitalized Subsequent to Acquisition	5,846
Impairment/Write Downs	(10,480)
Cost Amount Carried at Close of Period
Land	6,595
Buildings and Improvements	58,981
Total	65,576
Accumulated Depreciation	17,078
East Eisenhower Parkway, Ann Arbor, MI | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	6,760
Buildings and Equipment	46,988
Costs Capitalized Subsequent to Acquisition	1,297
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	6,760
Buildings and Improvements	48,285
Total	55,045
Accumulated Depreciation	5,528
8800 Queen Avenue South, Bloomington, MN | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,898
Buildings and Equipment	17,081
Costs Capitalized Subsequent to Acquisition	2,038
Impairment/Write Downs	(7,378)
Cost Amount Carried at Close of Period
Land	1,788
Buildings and Improvements	11,851
Total	13,639
Accumulated Depreciation	331
2250 Pilot Knob Road, Mendota Heights, MN | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	533
Buildings and Equipment	4,795
Costs Capitalized Subsequent to Acquisition	1,201
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	533
Buildings and Improvements	5,996
Total	6,529
Accumulated Depreciation	2,394
9800 Shelard Parkway, Plymouth, MN | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	563
Buildings and Equipment	5,064
Costs Capitalized Subsequent to Acquisition	1,090
Impairment/Write Downs	(1,433)
Cost Amount Carried at Close of Period
Land	433
Buildings and Improvements	4,851
Total	5,284
Accumulated Depreciation	2,378
Rosedale Corporate Plaza, Roseville, MN | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,860
Buildings and Equipment	16,750
Costs Capitalized Subsequent to Acquisition	8,938
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,859
Buildings and Improvements	25,689
Total	27,548
Accumulated Depreciation	8,775
411 Farwell Avenue, South St. Paul, MN | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,303
Buildings and Equipment	10,451
Costs Capitalized Subsequent to Acquisition	4,595
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,304
Buildings and Improvements	15,045
Total	16,349
Accumulated Depreciation	3,035
6200 Glenn Carlson Drive, St. Cloud, MN | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,950
Buildings and Equipment	13,803
Costs Capitalized Subsequent to Acquisition	0
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,950
Buildings and Improvements	13,803
Total	15,753
Accumulated Depreciation	1,811
1000 Shelard Parkway, St. Louis Park, MN | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	695
Buildings and Equipment	6,254
Costs Capitalized Subsequent to Acquisition	1,778
Impairment/Write Downs	(835)
Cost Amount Carried at Close of Period
Land	622
Buildings and Improvements	7,270
Total	7,892
Accumulated Depreciation	3,017
525 Park Street, St. Paul, MN | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	696
Buildings and Equipment	6,263
Costs Capitalized Subsequent to Acquisition	1,513
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	695
Buildings and Improvements	7,777
Total	8,472
Accumulated Depreciation	3,104
1900 Meyer Drury Drive, Arnold, MO | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	834
Buildings and Equipment	7,302
Costs Capitalized Subsequent to Acquisition	474
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	838
Buildings and Improvements	7,772
Total	8,610
Accumulated Depreciation	2,039
4700 Belleview Avenue, Kansas City, MO | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,165
Buildings and Equipment	3,097
Costs Capitalized Subsequent to Acquisition	2,375
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,165
Buildings and Improvements	5,472
Total	6,637
Accumulated Depreciation	793
131-165 West Ninth Street, N. Kansas City, MO | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	494
Buildings and Equipment	959
Costs Capitalized Subsequent to Acquisition	300
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	494
Buildings and Improvements	1,259
Total	1,753
Accumulated Depreciation	200
12655 Olive Boulevard, St. Louis, MO | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	4,800
Buildings and Equipment	8,020
Costs Capitalized Subsequent to Acquisition	1,760
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	4,801
Buildings and Improvements	9,779
Total	14,580
Accumulated Depreciation	2,016
1285 Fern Ridge Parkway, St. Louis, MO | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	903
Buildings and Equipment	7,602
Costs Capitalized Subsequent to Acquisition	1,495
Impairment/Write Downs	(3,503)
Cost Amount Carried at Close of Period
Land	556
Buildings and Improvements	5,941
Total	6,497
Accumulated Depreciation	2,497
300 North Greene Street, Greensboro, NC | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,070
Buildings and Equipment	37,073
Costs Capitalized Subsequent to Acquisition	1,616
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,070
Buildings and Improvements	38,689
Total	40,759
Accumulated Depreciation	4,322
7-9 Vreeland Road, Florham Park, NJ | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,412
Buildings and Equipment	12,709
Costs Capitalized Subsequent to Acquisition	2,191
Impairment/Write Downs	(9,087)
Cost Amount Carried at Close of Period
Land	916
Buildings and Improvements	6,309
Total	7,225
Accumulated Depreciation	442
111 River Street, Hoboken, NJ | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	0
Buildings and Equipment	134,199
Costs Capitalized Subsequent to Acquisition	602
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	0
Buildings and Improvements	134,801
Total	134,801
Accumulated Depreciation	18,206
5 Paragon Drive, Montvale, NJ | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,650
Buildings and Equipment	13,725
Costs Capitalized Subsequent to Acquisition	351
Impairment/Write Downs	(3,298)
Cost Amount Carried at Close of Period
Land	3,075
Buildings and Improvements	11,353
Total	14,428
Accumulated Depreciation	1,363
1000 Voorhees Drive and 333 and 400 Laurel Oak Drive, Voorhees, NJ | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,171
Buildings and Equipment	13,655
Costs Capitalized Subsequent to Acquisition	2,361
Impairment/Write Downs	(9,829)
Cost Amount Carried at Close of Period
Land	1,688
Buildings and Improvements	6,670
Total	8,358
Accumulated Depreciation	358
One Park Square, Albuquerque, NM | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,582
Buildings and Equipment	21,532
Costs Capitalized Subsequent to Acquisition	5,756
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,583
Buildings and Improvements	27,287
Total	29,870
Accumulated Depreciation	8,448
Widewaters Parkway, Dewitt, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	4,574
Buildings and Equipment	39,419
Costs Capitalized Subsequent to Acquisition	8,218
Impairment/Write Downs	(33,428)
Cost Amount Carried at Close of Period
Land	2,058
Buildings and Improvements	16,725
Total	18,783
Accumulated Depreciation	883
5062 Brittonfield Parkway, East Syracuse, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	718
Buildings and Equipment	4,756
Costs Capitalized Subsequent to Acquisition	(10)
Impairment/Write Downs	(1,700)
Cost Amount Carried at Close of Period
Land	590
Buildings and Improvements	3,174
Total	3,764
Accumulated Depreciation	74
Woodcliff Drive, Fairport, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	6,538
Buildings and Equipment	55,938
Costs Capitalized Subsequent to Acquisition	11,385
Impairment/Write Downs	(25,814)
Cost Amount Carried at Close of Period
Land	4,622
Buildings and Improvements	43,425
Total	48,047
Accumulated Depreciation	3,651
1601 Veterans Highway, Islandia, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	813
Buildings and Equipment	7,319
Costs Capitalized Subsequent to Acquisition	2,684
Impairment/Write Downs	(7,281)
Cost Amount Carried at Close of Period
Land	368
Buildings and Improvements	3,167
Total	3,535
Accumulated Depreciation	120
Two Corporate Drive Center, Melville, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,155
Buildings and Equipment	28,395
Costs Capitalized Subsequent to Acquisition	6,625
Impairment/Write Downs	(26,344)
Cost Amount Carried at Close of Period
Land	1,868
Buildings and Improvements	9,963
Total	11,831
Accumulated Depreciation	841
Interstate Place, North Syracuse, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	563
Buildings and Equipment	4,874
Costs Capitalized Subsequent to Acquisition	1,243
Impairment/Write Downs	(3,750)
Cost Amount Carried at Close of Period
Land	296
Buildings and Improvements	2,634
Total	2,930
Accumulated Depreciation	79
1000 Pittsford-Victor Road, Pittsford, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	583
Buildings and Equipment	4,700
Costs Capitalized Subsequent to Acquisition	967
Impairment/Write Downs	(3,295)
Cost Amount Carried at Close of Period
Land	314
Buildings and Improvements	2,641
Total	2,955
Accumulated Depreciation	91
1200 Pittsford-Victor Road, Pittsford, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	307
Buildings and Equipment	2,083
Costs Capitalized Subsequent to Acquisition	4
Impairment/Write Downs	(540)
Cost Amount Carried at Close of Period
Land	295
Buildings and Improvements	1,559
Total	1,854
Accumulated Depreciation	38
Corporate Crossing, Pittsford, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,012
Buildings and Equipment	22,546
Costs Capitalized Subsequent to Acquisition	1,088
Impairment/Write Downs	(12,224)
Cost Amount Carried at Close of Period
Land	2,047
Buildings and Improvements	12,375
Total	14,422
Accumulated Depreciation	337
Canal View Boulevard, Rochester, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,575
Buildings and Equipment	12,686
Costs Capitalized Subsequent to Acquisition	1,791
Impairment/Write Downs	(4,428)
Cost Amount Carried at Close of Period
Land	1,290
Buildings and Improvements	10,334
Total	11,624
Accumulated Depreciation	1,796
14 Classic Street, Sherburne, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	140
Buildings and Equipment	1,250
Costs Capitalized Subsequent to Acquisition	15
Impairment/Write Downs	(16)
Cost Amount Carried at Close of Period
Land	140
Buildings and Improvements	1,249
Total	1,389
Accumulated Depreciation	274
110 W. Fayette Street, Syracuse, NY | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,788
Buildings and Equipment	16,096
Costs Capitalized Subsequent to Acquisition	14,881
Impairment/Write Downs	(17,214)
Cost Amount Carried at Close of Period
Land	1,075
Buildings and Improvements	14,476
Total	15,551
Accumulated Depreciation	651
251 Salina Meadows Parkway, Syracuse, NY | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	466
Buildings and Equipment	4,196
Costs Capitalized Subsequent to Acquisition	1,134
Impairment/Write Downs	(2,748)
Cost Amount Carried at Close of Period
Land	335
Buildings and Improvements	2,713
Total	3,048
Accumulated Depreciation	124
11311 Cornell Park Drive, Blue Ash, OH | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	883
Buildings and Equipment	7,175
Costs Capitalized Subsequent to Acquisition	1,120
Impairment/Write Downs	(2,561)
Cost Amount Carried at Close of Period
Land	773
Buildings and Improvements	5,844
Total	6,617
Accumulated Depreciation	213
North Point Office Complex, Cleveland, OH | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	12,000
Buildings and Equipment	94,448
Costs Capitalized Subsequent to Acquisition	15,496
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	12,000
Buildings and Improvements	109,944
Total	121,944
Accumulated Depreciation	18,849
5300 Kings Island Drive, Mason, OH | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,528
Buildings and Equipment	13,748
Costs Capitalized Subsequent to Acquisition	4,620
Impairment/Write Downs	(8,546)
Cost Amount Carried at Close of Period
Land	1,320
Buildings and Improvements	10,030
Total	11,350
Accumulated Depreciation	725
3 Crown Point Court, Sharonville, OH | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	956
Buildings and Equipment	8,290
Costs Capitalized Subsequent to Acquisition	1,362
Impairment/Write Downs	(181)
Cost Amount Carried at Close of Period
Land	1,125
Buildings and Improvements	9,302
Total	10,427
Accumulated Depreciation	1,915
Raintree Industrial Park, Solon, OH | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,808
Buildings and Equipment	16,620
Costs Capitalized Subsequent to Acquisition	2,064
Impairment/Write Downs	(8,359)
Cost Amount Carried at Close of Period
Land	1,339
Buildings and Improvements	10,794
Total	12,133
Accumulated Depreciation	394
401 Vine Street, Delmont, PA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,575
Buildings and Equipment	5,542
Costs Capitalized Subsequent to Acquisition	0
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,575
Buildings and Improvements	5,542
Total	7,117
Accumulated Depreciation	991
515 Pennsylvania Avenue, Fort Washington, PA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,872
Buildings and Equipment	8,816
Costs Capitalized Subsequent to Acquisition	4,091
Impairment/Write Downs	(4,225)
Cost Amount Carried at Close of Period
Land	1,259
Buildings and Improvements	9,295
Total	10,554
Accumulated Depreciation	4,404
443 Gulph Road, King of Prussia, PA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	634
Buildings and Equipment	3,251
Costs Capitalized Subsequent to Acquisition	773
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	634
Buildings and Improvements	4,024
Total	4,658
Accumulated Depreciation	1,528
4350 Northern Pike, Monroeville, PA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	6,558
Buildings and Equipment	51,775
Costs Capitalized Subsequent to Acquisition	16,926
Impairment/Write Downs	(34,439)
Cost Amount Carried at Close of Period
Land	3,667
Buildings and Improvements	37,153
Total	40,820
Accumulated Depreciation	15,106
Cherrington Corporate Center Moon, Township, PA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	11,369
Buildings and Equipment	39,892
Costs Capitalized Subsequent to Acquisition	18,276
Impairment/Write Downs	(5,440)
Cost Amount Carried at Close of Period
Land	11,164
Buildings and Improvements	52,933
Total	64,097
Accumulated Depreciation	19,102
1500 Market Street, Philadelphia, PA | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	18,758
Buildings and Equipment	167,487
Costs Capitalized Subsequent to Acquisition	96,002
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	18,758
Buildings and Improvements	263,489
Total	282,247
Accumulated Depreciation	68,976
1525 Locust Street, Philadelphia, PA | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	931
Buildings and Equipment	8,377
Costs Capitalized Subsequent to Acquisition	1,853
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	930
Buildings and Improvements	10,231
Total	11,161
Accumulated Depreciation	3,719
1600 Market Street, Philadelphia, PA | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,462
Buildings and Equipment	111,946
Costs Capitalized Subsequent to Acquisition	16,320
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	3,462
Buildings and Improvements	128,266
Total	131,728
Accumulated Depreciation	51,508
16th and Race Street, Philadelphia, PA | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	7,884
Buildings and Equipment	71,002
Costs Capitalized Subsequent to Acquisition	5,749
Impairment/Write Downs	(48,329)
Cost Amount Carried at Close of Period
Land	5,939
Buildings and Improvements	30,367
Total	36,306
Accumulated Depreciation	1,306
1735 Market Street, Philadelphia, PA | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	171,498
Initial Cost to Company
Land	24,753
Buildings and Equipment	222,775
Costs Capitalized Subsequent to Acquisition	50,376
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	24,747
Buildings and Improvements	273,157
Total	297,904
Accumulated Depreciation	110,910
Foster Plaza, Pittsburgh, PA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	6,168
Buildings and Equipment	51,588
Costs Capitalized Subsequent to Acquisition	15,524
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	6,171
Buildings and Improvements	67,109
Total	73,280
Accumulated Depreciation	16,665
128 Crews Drive, Columbia, SC | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,420
Buildings and Equipment	4,017
Costs Capitalized Subsequent to Acquisition	1,322
Impairment/Write Downs	(4,012)
Cost Amount Carried at Close of Period
Land	1,024
Buildings and Improvements	2,723
Total	3,747
Accumulated Depreciation	385
1320 Main Street, Columbia, SC | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	38,979
Initial Cost to Company
Land	1,660
Buildings and Equipment	53,058
Costs Capitalized Subsequent to Acquisition	399
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,660
Buildings and Improvements	53,457
Total	55,117
Accumulated Depreciation	3,008
111 Southchase Boulevard, Fountain Inn, SC | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	520
Buildings and Equipment	6,822
Costs Capitalized Subsequent to Acquisition	1,725
Impairment/Write Downs	(2,912)
Cost Amount Carried at Close of Period
Land	390
Buildings and Improvements	5,765
Total	6,155
Accumulated Depreciation	1,393
1043 Global Avenue, Graniteville, SC | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	720
Buildings and Equipment	15,552
Costs Capitalized Subsequent to Acquisition	598
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	720
Buildings and Improvements	16,150
Total	16,870
Accumulated Depreciation	3,042
633 Frazier Drive, Franklin, TN | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	5,800
Buildings and Equipment	13,190
Costs Capitalized Subsequent to Acquisition	(10)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	5,800
Buildings and Improvements	13,180
Total	18,980
Accumulated Depreciation	2,381
775 Ridge Lake Boulevard, Memphis, TN | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,113
Buildings and Equipment	18,201
Costs Capitalized Subsequent to Acquisition	515
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,114
Buildings and Improvements	18,715
Total	20,829
Accumulated Depreciation	5,044
1601 Rio Grande Street, Austin, TX | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	688
Buildings and Equipment	6,192
Costs Capitalized Subsequent to Acquisition	1,272
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	697
Buildings and Improvements	7,455
Total	8,152
Accumulated Depreciation	2,874
206 East 9th Street, Austin, TX | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	27,965
Initial Cost to Company
Land	7,900
Buildings and Equipment	38,533
Costs Capitalized Subsequent to Acquisition	1,822
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	7,900
Buildings and Improvements	40,355
Total	48,255
Accumulated Depreciation	2,568
4515 Seton Center Parkway, Austin, TX | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,038
Buildings and Equipment	18,338
Costs Capitalized Subsequent to Acquisition	2,487
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,037
Buildings and Improvements	20,826
Total	22,863
Accumulated Depreciation	8,310
4516 Seton Center Parkway, Austin, TX | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,028
Buildings and Equipment	18,251
Costs Capitalized Subsequent to Acquisition	3,046
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,027
Buildings and Improvements	21,298
Total	23,325
Accumulated Depreciation	8,717
7800 Shoal Creek Boulevard, Austin, TX | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,731
Buildings and Equipment	14,921
Costs Capitalized Subsequent to Acquisition	4,407
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,731
Buildings and Improvements	19,328
Total	21,059
Accumulated Depreciation	6,842
812 San Antonio Street, Austin, TX | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	626
Buildings and Equipment	5,636
Costs Capitalized Subsequent to Acquisition	2,286
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	621
Buildings and Improvements	7,927
Total	8,548
Accumulated Depreciation	2,807
8701 N. Mopac, Austin, TX | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,574
Buildings and Equipment	14,168
Costs Capitalized Subsequent to Acquisition	2,511
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,573
Buildings and Improvements	16,680
Total	18,253
Accumulated Depreciation	6,201
Bridgepoint Parkway, Austin, TX | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	7,784
Buildings and Equipment	70,526
Costs Capitalized Subsequent to Acquisition	9,757
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	7,785
Buildings and Improvements	80,282
Total	88,067
Accumulated Depreciation	34,829
Lakewood on the Park, Austin, TX | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,548
Buildings and Equipment	31,936
Costs Capitalized Subsequent to Acquisition	1,629
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	3,548
Buildings and Improvements	33,565
Total	37,113
Accumulated Depreciation	13,597
Research Park, Austin, TX | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	15,859
Buildings and Equipment	60,175
Costs Capitalized Subsequent to Acquisition	14,551
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	18,411
Buildings and Improvements	72,174
Total	90,585
Accumulated Depreciation	26,848
9840 Gateway Boulevard North, El Paso, TX | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,700
Buildings and Equipment	9,736
Costs Capitalized Subsequent to Acquisition	(4)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,700
Buildings and Improvements	9,732
Total	11,432
Accumulated Depreciation	1,752
3003 South Expressway 281, Hidalgo, TX | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,480
Buildings and Equipment	15,533
Costs Capitalized Subsequent to Acquisition	(9)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,480
Buildings and Improvements	15,524
Total	17,004
Accumulated Depreciation	2,805
3330 N Washington Boulevard, Arlington, VA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	810
Buildings and Equipment	7,289
Costs Capitalized Subsequent to Acquisition	744
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	811
Buildings and Improvements	8,032
Total	8,843
Accumulated Depreciation	3,100
6160 Kempsville Circle, Norfolk, VA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,273
Buildings and Equipment	11,083
Costs Capitalized Subsequent to Acquisition	2,931
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,273
Buildings and Improvements	14,014
Total	15,287
Accumulated Depreciation	4,087
Thunderbolt Place, Chantilly, VA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,374
Buildings and Equipment	12,369
Costs Capitalized Subsequent to Acquisition	819
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,375
Buildings and Improvements	13,187
Total	14,562
Accumulated Depreciation	4,998
448 Viking Drive, Virginia Beach, VA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	682
Buildings and Equipment	5,431
Costs Capitalized Subsequent to Acquisition	1,443
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	686
Buildings and Improvements	6,870
Total	7,556
Accumulated Depreciation	1,664
333 108th Avenue NE, Bellevue, WA | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	14,400
Buildings and Equipment	136,412
Costs Capitalized Subsequent to Acquisition	1,731
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	14,400
Buildings and Improvements	138,143
Total	152,543
Accumulated Depreciation	18,429
600 108th Avenue NE, Bellevue, WA | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,555
Buildings and Equipment	30,244
Costs Capitalized Subsequent to Acquisition	11,912
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	3,555
Buildings and Improvements	42,156
Total	45,711
Accumulated Depreciation	10,119
1331 North Center Parkway, Kennewick, WA | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	1,850
Buildings and Equipment	7,339
Costs Capitalized Subsequent to Acquisition	(2)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	1,850
Buildings and Improvements	7,337
Total	9,187
Accumulated Depreciation	1,323
100 East Wisconsin Avenue, Milwaukee, WI | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,150
Buildings and Equipment	72,113
Costs Capitalized Subsequent to Acquisition	6,615
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	3,150
Buildings and Improvements	78,728
Total	81,878
Accumulated Depreciation	9,063
111 East Kilbourn Avenue, Milwaukee, WI | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,400
Buildings and Equipment	47,562
Costs Capitalized Subsequent to Acquisition	5,107
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,400
Buildings and Improvements	52,669
Total	55,069
Accumulated Depreciation	8,919
7 Modal Crescent, Canning Vale, Australia | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	9,806
Buildings and Equipment	3,925
Costs Capitalized Subsequent to Acquisition	(505)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	8,171
Buildings and Improvements	5,055
Total	13,226
Accumulated Depreciation	454
71-93 Whiteside Road, Clayton, Australia | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	9,757
Buildings and Equipment	8,495
Costs Capitalized Subsequent to Acquisition	(3,043)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	8,130
Buildings and Improvements	7,079
Total	15,209
Accumulated Depreciation	749
9-13 Titanium Court, Crestmead, Australia | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	3,400
Buildings and Equipment	3,185
Costs Capitalized Subsequent to Acquisition	(1,098)
Impairment/Write Downs	(409)
Cost Amount Carried at Close of Period
Land	2,621
Buildings and Improvements	2,457
Total	5,078
Accumulated Depreciation	281
16 Rodborough Road, Frenchs Forest, Australia | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	7,355
Buildings and Equipment	9,498
Costs Capitalized Subsequent to Acquisition	(2,386)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	6,128
Buildings and Improvements	8,339
Total	14,467
Accumulated Depreciation	859
22 Rodborough Road, Frenchs Forest, Australia | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,452
Buildings and Equipment	3,923
Costs Capitalized Subsequent to Acquisition	453
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	2,043
Buildings and Improvements	4,785
Total	6,828
Accumulated Depreciation	459
127-161 Cherry Lane, Laverton North, Australia | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	4,266
Buildings and Equipment	5,220
Costs Capitalized Subsequent to Acquisition	(1,237)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	3,554
Buildings and Improvements	4,695
Total	8,249
Accumulated Depreciation	462
310-314 Invermay Road, Mowbray, Australia | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	431
Buildings and Equipment	535
Costs Capitalized Subsequent to Acquisition	(919)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	56
Buildings and Improvements	(9)
Total	47
Accumulated Depreciation	47
253-293 George Town Road, Rocherlea, Australia | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	2,108
Buildings and Equipment	1,331
Costs Capitalized Subsequent to Acquisition	(574)
Impairment/Write Downs	(2,748)
Cost Amount Carried at Close of Period
Land	526
Buildings and Improvements	(409)
Total	117
Accumulated Depreciation	117
310-320 Pitt Street, Sydney, Australia | CBD
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	63,271
Buildings and Equipment	104,588
Costs Capitalized Subsequent to Acquisition	(30,272)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	51,886
Buildings and Improvements	85,701
Total	137,587
Accumulated Depreciation	9,109
44-46 Mandarin Street, Villawood, Australia | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	6,374
Buildings and Equipment	8,179
Costs Capitalized Subsequent to Acquisition	(1,096)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	5,311
Buildings and Improvements	8,146
Total	13,457
Accumulated Depreciation	814
19 Leadership Way, Wangara, Australia | Suburban property
SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items]
Encumbrances	0
Initial Cost to Company
Land	4,217
Buildings and Equipment	2,685
Costs Capitalized Subsequent to Acquisition	(961)
Impairment/Write Downs	0
Cost Amount Carried at Close of Period
Land	3,514
Buildings and Improvements	2,427
Total	5,941
Accumulated Depreciation	$ 247