Real Estate and Accumulated Depreciation (Schedule of Properties) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012
Real Estate and Accumulated Depreciation
Encumbrances	$ 425,410
Initial cost to company, land and improvements	190,141
Initial cost to company, building and improvements	486,503
Costs capitalized subsequent to acquisition, land and improvements	141,246
Costs capitalized subsequent to acquisition, building and improvements	174,620
Gross amount at which carried at close of period, land and improvements	331,387
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	661,123
Gross amount at which carried at close of period, total	992,510	[1]
Accumulated depreciation	255,311	[1]
Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	412,211
Initial cost to company, land and improvements	63,941
Initial cost to company, building and improvements	413,930
Costs capitalized subsequent to acquisition, land and improvements	(2,427)
Costs capitalized subsequent to acquisition, building and improvements	391,951
Gross amount at which carried at close of period, land and improvements	61,514
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	805,881
Gross amount at which carried at close of period, total	867,395	[1]
Accumulated depreciation	246,970	[1]
Operating properties
Real Estate and Accumulated Depreciation
Encumbrances	412,211
Initial cost to company, land and improvements	72,115
Initial cost to company, building and improvements	413,930
Costs capitalized subsequent to acquisition, land and improvements	3,746
Costs capitalized subsequent to acquisition, building and improvements	434,989
Gross amount at which carried at close of period, land and improvements	75,861
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	848,919
Gross amount at which carried at close of period, total	924,780	[1]
Accumulated depreciation	255,128	[1]
Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	172
Initial cost to company, land and improvements	104,839
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	145,061
Costs capitalized subsequent to acquisition, building and improvements	(207,713)
Gross amount at which carried at close of period, land and improvements	249,900
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(207,713)
Gross amount at which carried at close of period, total	42,187	[1]
Accumulated depreciation	0	[1]
Commercial Real Estate [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	78,780
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	65,459
Costs capitalized subsequent to acquisition, building and improvements	(113,943)
Gross amount at which carried at close of period, land and improvements	144,239
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(113,943)
Gross amount at which carried at close of period, total	30,296	[1]
Accumulated depreciation	0	[1]
Residential Lots [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	172
Initial cost to company, land and improvements	26,059
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	79,602
Costs capitalized subsequent to acquisition, building and improvements	(93,770)
Gross amount at which carried at close of period, land and improvements	105,661
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(93,770)
Gross amount at which carried at close of period, total	11,891	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
191 Peachtree Tower Atlanta, GA [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	100,000	[3]
Initial cost to company, land and improvements	5,355	[3]
Initial cost to company, building and improvements	141,012	[3]
Costs capitalized subsequent to acquisition, land and improvements	0	[3]
Costs capitalized subsequent to acquisition, building and improvements	85,392	[3]
Gross amount at which carried at close of period, land and improvements	5,355	[3]
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	226,404	[3]
Gross amount at which carried at close of period, total	231,759	[1],[3]
Accumulated depreciation	54,747	[1],[3]
Life on which depreciation in 2011 statement of operations is computed (b)	40 years	[2],[3]
Terminus 100 Atlanta, GA [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	136,123
Initial cost to company, land and improvements	15,559
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	(2,512)
Costs capitalized subsequent to acquisition, building and improvements	157,840
Gross amount at which carried at close of period, land and improvements	13,047
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	157,840
Gross amount at which carried at close of period, total	170,887	[1]
Accumulated depreciation	46,236	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	30 years	[2]
Promenade Atlanta, GA [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0	[3]
Initial cost to company, land and improvements	13,439	[3]
Initial cost to company, building and improvements	102,790	[3]
Costs capitalized subsequent to acquisition, land and improvements	0	[3]
Costs capitalized subsequent to acquisition, building and improvements	10,274	[3]
Gross amount at which carried at close of period, land and improvements	13,439	[3]
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	113,064	[3]
Gross amount at which carried at close of period, total	126,503	[1],[3]
Accumulated depreciation	5,637	[1],[3]
Life on which depreciation in 2011 statement of operations is computed (b)	34 years	[2],[3]
The American Cancer Society Center Atlanta, GA [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	134,243
Initial cost to company, land and improvements	5,226
Initial cost to company, building and improvements	67,370
Costs capitalized subsequent to acquisition, land and improvements	0
Costs capitalized subsequent to acquisition, building and improvements	29,741
Gross amount at which carried at close of period, land and improvements	5,226
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	97,111
Gross amount at which carried at close of period, total	102,337	[1]
Accumulated depreciation	55,151	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	25 years	[2]
2100 Ross Avenue [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0	[3]
Initial cost to company, land and improvements	5,987	[3]
Initial cost to company, building and improvements	36,705	[3]
Costs capitalized subsequent to acquisition, land and improvements	0	[3]
Costs capitalized subsequent to acquisition, building and improvements	9,149	[3]
Gross amount at which carried at close of period, land and improvements	5,987	[3]
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	45,854	[3]
Gross amount at which carried at close of period, total	51,841	[1],[3]
Accumulated depreciation	1,327	[1],[3]
Life on which depreciation in 2011 statement of operations is computed (b)	35 years	[2],[3]
The Points at Waterview Suburban Dallas, TX [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	15,651
Initial cost to company, land and improvements	2,558
Initial cost to company, building and improvements	22,910
Costs capitalized subsequent to acquisition, land and improvements	85
Costs capitalized subsequent to acquisition, building and improvements	6,849
Gross amount at which carried at close of period, land and improvements	2,643
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	29,759
Gross amount at which carried at close of period, total	32,402	[1]
Accumulated depreciation	16,989	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	25 years	[2]
Meridian Mark Plaza Atlanta, GA [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	26,194
Initial cost to company, land and improvements	2,219
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	0
Costs capitalized subsequent to acquisition, building and improvements	26,128
Gross amount at which carried at close of period, land and improvements	2,219
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	26,128
Gross amount at which carried at close of period, total	28,347	[1]
Accumulated depreciation	14,715	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	30 years	[2]
Lakeshore Park Plaza Birmingham, AL [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	3,362
Initial cost to company, building and improvements	12,261
Costs capitalized subsequent to acquisition, land and improvements	0
Costs capitalized subsequent to acquisition, building and improvements	6,304
Gross amount at which carried at close of period, land and improvements	3,362
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	18,565
Gross amount at which carried at close of period, total	21,927	[1]
Accumulated depreciation	10,919	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	30 years	[2]
555 North Point Center East Suburban Atlanta, GA [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	368
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	0
Costs capitalized subsequent to acquisition, building and improvements	21,325
Gross amount at which carried at close of period, land and improvements	368
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	21,325
Gross amount at which carried at close of period, total	21,693	[1]
Accumulated depreciation	11,096	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	30 years	[2]
600 University Park Place Birmingham, AL [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	1,899
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	0
Costs capitalized subsequent to acquisition, building and improvements	19,371
Gross amount at which carried at close of period, land and improvements	1,899
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	19,371
Gross amount at which carried at close of period, total	21,270	[1]
Accumulated depreciation	8,473	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	30 years	[2]
221 Peachtree Center Avenue Parking Garage Atlanta, GA [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	4,217
Initial cost to company, building and improvements	13,337
Costs capitalized subsequent to acquisition, land and improvements	0
Costs capitalized subsequent to acquisition, building and improvements	348
Gross amount at which carried at close of period, land and improvements	4,217
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	13,685
Gross amount at which carried at close of period, total	17,902	[1]
Accumulated depreciation	1,999	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	39 years	[2]
333 North Point Center East Suburban Atlanta, GA [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	551
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	0
Costs capitalized subsequent to acquisition, building and improvements	14,168
Gross amount at which carried at close of period, land and improvements	551
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	14,168
Gross amount at which carried at close of period, total	14,719	[1]
Accumulated depreciation	8,656	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	30 years	[2]
100 North Point Center East Suburban Atlanta, GA [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	1,475
Initial cost to company, building and improvements	9,625
Costs capitalized subsequent to acquisition, land and improvements	0
Costs capitalized subsequent to acquisition, building and improvements	2,448
Gross amount at which carried at close of period, land and improvements	1,475
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	12,073
Gross amount at which carried at close of period, total	13,548	[1]
Accumulated depreciation	6,172	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	25 years	[2]
200 North Point Center East Suburban Atlanta, GA [Member] | Operating Properties Office [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	1,726
Initial cost to company, building and improvements	7,920
Costs capitalized subsequent to acquisition, land and improvements	0
Costs capitalized subsequent to acquisition, building and improvements	2,614
Gross amount at which carried at close of period, land and improvements	1,726
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	10,534
Gross amount at which carried at close of period, total	12,260	[1]
Accumulated depreciation	4,853	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	25 years	[2]
Tiffany Springs Market Center Kansas City, MO [Member] | Operating Properties Retail [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	8,174
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	6,173
Costs capitalized subsequent to acquisition, building and improvements	43,038
Gross amount at which carried at close of period, land and improvements	14,347
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	43,038
Gross amount at which carried at close of period, total	57,385	[1]
Accumulated depreciation	8,158	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	30 years	[2]
Mahan Village Tallahassee FL [Member]
Real Estate and Accumulated Depreciation
Encumbrances	13,027
Initial cost to company, land and improvements	5,377
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	0
Costs capitalized subsequent to acquisition, building and improvements	20,015
Gross amount at which carried at close of period, land and improvements	5,377
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	20,015
Gross amount at which carried at close of period, total	25,392	[1]
Accumulated depreciation	183	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	30 years	[2]
Round Rock Land Austin, TX [Member] | Commercial Real Estate [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	12,802
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	4,313
Costs capitalized subsequent to acquisition, building and improvements	(6,915)
Gross amount at which carried at close of period, land and improvements	17,115
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(6,915)
Gross amount at which carried at close of period, total	10,200	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
Research Park Austin [Member] | Commercial Real Estate [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	4,373
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	595
Costs capitalized subsequent to acquisition, building and improvements	0
Gross amount at which carried at close of period, land and improvements	4,968
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	0
Gross amount at which carried at close of period, total	4,968	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
Land Adjacent to The Avenue Forsyth Suburban Atlanta [Member] | Commercial Real Estate [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	11,240
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	10,875
Costs capitalized subsequent to acquisition, building and improvements	(18,415)
Gross amount at which carried at close of period, land and improvements	22,115
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(18,415)
Gross amount at which carried at close of period, total	3,700	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
Blalock Lakes Suburban Atlanta, GA [Member] | Commercial Real Estate [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	9,646
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	4
Costs capitalized subsequent to acquisition, building and improvements	(6,305)
Gross amount at which carried at close of period, land and improvements	9,650
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(6,305)
Gross amount at which carried at close of period, total	3,345	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
Blalock Lakes Suburban Atlanta, GA [Member] | Residential Lots [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	17,657
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	26,832
Costs capitalized subsequent to acquisition, building and improvements	(37,684)
Gross amount at which carried at close of period, land and improvements	44,489
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(37,684)
Gross amount at which carried at close of period, total	6,805	[1]
Accumulated depreciation	0	[1]
549 / 555 / 557 Peachtree Street Atlanta, GA [Member] | Commercial Real Estate [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	5,988
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	6,152
Costs capitalized subsequent to acquisition, building and improvements	(9,515)
Gross amount at which carried at close of period, land and improvements	12,140
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(9,515)
Gross amount at which carried at close of period, total	2,625	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
Jefferson Mill Business Park Suburban Atlanta, GA [Member] | Commercial Real Estate [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	14,223
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	9,533
Costs capitalized subsequent to acquisition, building and improvements	(21,236)
Gross amount at which carried at close of period, land and improvements	23,756
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(21,236)
Gross amount at which carried at close of period, total	2,520	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
North Point Suburban Atlanta, GA [Member] | Commercial Real Estate [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	10,294
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	28,895
Costs capitalized subsequent to acquisition, building and improvements	(37,265)
Gross amount at which carried at close of period, land and improvements	39,189
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(37,265)
Gross amount at which carried at close of period, total	1,924	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
Wildwood Suburban Atlanta, GA [Member] | Commercial Real Estate [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	10,214
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	5,092
Costs capitalized subsequent to acquisition, building and improvements	(14,292)
Gross amount at which carried at close of period, land and improvements	15,306
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(14,292)
Gross amount at which carried at close of period, total	1,014	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
Callaway Gardens Pine Mountain, GA [Member] | Residential Lots [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	1,584
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	16,066
Costs capitalized subsequent to acquisition, building and improvements	(13,063)
Gross amount at which carried at close of period, land and improvements	17,650
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(13,063)
Gross amount at which carried at close of period, total	4,587	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
Longleaf at Callaway Pine Mountain, GA [Member] | Residential Lots [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	172
Initial cost to company, land and improvements	2,098
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	6,782
Costs capitalized subsequent to acquisition, building and improvements	(8,513)
Gross amount at which carried at close of period, land and improvements	8,880
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(8,513)
Gross amount at which carried at close of period, total	367	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
The Lakes at Cedar Grove Suburban Atlanta, GA [Member] | Residential Lots [Member] | Impairment moved to discontinued operations
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	4,720
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	29,922
Costs capitalized subsequent to acquisition, building and improvements	(34,510)
Gross amount at which carried at close of period, land and improvements	34,642
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(34,510)
Gross amount at which carried at close of period, total	132	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
10 Terminus Place Atlanta, GA [Member] | Other [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	7,810
Initial cost to company, building and improvements	72,573
Costs capitalized subsequent to acquisition, land and improvements	(7,561)
Costs capitalized subsequent to acquisition, building and improvements	(72,671)
Gross amount at which carried at close of period, land and improvements	249
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	(98)
Gross amount at which carried at close of period, total	151	[1]
Accumulated depreciation	0	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	0 years	[2]
Inhibitex Suburban Atlanta, GA [Member]
Real Estate and Accumulated Depreciation
Encumbrances	0
Initial cost to company, land and improvements	675
Initial cost to company, building and improvements	0
Costs capitalized subsequent to acquisition, land and improvements	(307)
Costs capitalized subsequent to acquisition, building and improvements	4,445
Gross amount at which carried at close of period, land and improvements	368
Gross amount at which carried at close of period, building and Improvements less cost of sales, transfers and other	4,445
Gross amount at which carried at close of period, total	4,813	[1]
Accumulated depreciation	$ 2,947	[1]
Life on which depreciation in 2011 statement of operations is computed (b)	30 years	[2]

[1] Reconciliations of total real estate carrying value and accumulated depreciation for the three years ended December 31, 2012 are as follows:Real Estate Accumulated Depreciation2012 2011 2010 2012 2011 2010Balance at beginning of period$1,253,414 $1,363,320 $1,468,413 $289,473 $274,925 $233,091Additions during the period: Acquisition42,692 116,229 — — — —Improvements and other capitalized costs49,559 50,009 43,798 — — —Depreciation expense— — — 48,607 52,630 58,585 92,251 166,238 43,798 48,607 52,630 58,585Deductions during the period: Cost of real estate sold or foreclosed(334,552) (162,989) (143,497) (79,822) (29,110) (13,911)Impairment losses(13,790) (104,183) (2,554) — — —Write-off of fully depreciated assets— (8,972) (2,840) — (8,972) (2,840) (348,342) (276,144) (148,891) (79,822) (38,082) (16,751)Balance at end of period$997,323 $1,253,414 $1,363,320 $258,258 $289,473 $274,925

[2] Buildings and improvements are depreciated over 24 to 40 years. Leasehold improvements and other capitalized leasing costs are depreciated over the life of the asset or the term of the lease, whichever is shorter.

[3] Certain intangible assets related to the purchase of this property are included in other assets and are not in the above table.