Tier Reit (TIER) 10-K 7 Mar 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
In Billions, except Share data, unless otherwise specified	Dec. 31, 2013	Feb. 28, 2014	Jun. 30, 2013
Document and Entity Information [Abstract]	'	'	'
Entity Registrant Name	'TIER REIT INC	'	'
Entity Central Index Key	'0001176373	'	'
Document Type	'10-K	'	'
Document Period End Date	31-Dec-13	'	'
Amendment Flag	'false	'	'
Current Fiscal Year End Date	'--12-31	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Voluntary Filers	'No	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Filer Category	'Non-accelerated Filer	'	'
Entity Public Float	'	'	$1.20
Entity Common Stock, Shares Outstanding	'	300,065,251	'
Document Fiscal Year Focus	'2013	'	'
Document Fiscal Period Focus	'FY	'	'

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Real estate	'	'
Land	$317,632	$392,736
Buildings and improvements, net	1,668,799	2,230,283
Real estate under development	51,144	5,950
Total real estate	2,037,575	2,628,969
Cash and cash equivalents	57,786	9,746
Restricted cash	49,719	78,166
Accounts receivable, net	97,184	111,950
Prepaid expenses and other assets	5,594	7,302
Investments in unconsolidated entities	41,762	52,948
Deferred financing fees, net	9,978	16,251
Lease intangibles, net	134,364	205,587
Other intangible assets, net	2,263	3,657
Assets associated with real estate held for sale	0	10,718
Total assets	2,436,225	3,125,294
Liabilities	'	'
Notes payable	1,490,367	2,107,380
Accounts payable	7,305	1,652
Payables to related parties	2,034	1,398
Acquired below-market leases, net	24,570	51,218
Accrued liabilities	89,767	135,072
Deferred tax liabilities	1,313	2,192
Other liabilities	17,610	17,914
Obligations associated with real estate held for sale	0	18,383
Total liabilities	1,632,966	2,335,209
Commitments and contingencies	'	'
Series A Convertible Preferred Stock	2,700	2,700
Equity	'	'
Preferred stock, $.0001 par value per share; 17,490,000 shares authorized, none outstanding	0	0
Convertible stock, $.0001 par value per share; 1,000 shares authorized, none outstanding	0	0
Common stock, $.0001 par value per share; 382,499,000 shares authorized, 299,191,861 issued and outstanding	30	30
Additional paid-in capital	2,646,741	2,645,994
Cumulative distributions and net loss attributable to common stockholders	-1,847,039	-1,862,591
Accumulated other comprehensive loss	0	-1,676
Stockholders’ equity	799,732	781,757
Noncontrolling interests	827	5,628
Total equity	800,559	787,385
Total liabilities and equity	$2,436,225	$3,125,294

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Statement of Financial Position [Abstract]	'	'
Preferred Stock, par value (in dollars per share)	$0.00	$0.00
Preferred stock, shares authorized	17,490,000	17,490,000
Preferred stock, shares outstanding	0	0
Convertible stock, par value (in dollars per share)	$0.00	$0.00
Convertible stock, shares authorized	1,000	1,000
Convertible stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$0.00	$0.00
Common stock, shares authorized	382,499,000	382,499,000
Common stock, shares issued	299,191,861	299,191,861
Common stock, shares outstanding	299,191,861	299,191,861

Consolidated_Statements_of_Ope

Consolidated Statements of Operations and Comprehensive Income (Loss) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Statement [Abstract]	'	'	'
Rental revenue	$344,554	$352,529	$368,007
Expenses	'	'	'
Property operating expenses	107,507	106,270	109,961
Interest expense	107,122	118,545	112,222
Real estate taxes	51,623	50,378	48,102
Property management fees	10,384	10,453	10,916
Asset management fees	0	7,951	14,521
Asset impairment losses	0	84,536	27,370
General and administrative	17,322	15,480	10,828
Depreciation and amortization	144,854	153,138	165,137
Total expenses	438,812	546,751	499,057
Interest and other income	1,244	942	1,078
Loss on early extinguishment of debt	-1,605	0	0
Gain on troubled debt restructuring	0	201	1,008
Loss from continuing operations before income taxes, equity in earnings (losses) of investments, and gain on sale or transfer of assets	-94,619	-193,079	-128,964
Benefit (provision) for income taxes	-518	-60	615
Equity in earnings (losses) of investments	24,547	1,725	-2,302
Loss from continuing operations before gain on sale or transfer of assets	-70,590	-191,414	-130,651
Discontinued operations	'	'	'
Income (loss) from discontinued operations	30,035	10,840	-69,310
Gain on sale or transfer of discontinued operations	40,436	20,130	16,701
Income (loss) from discontinued operations	70,471	30,970	-52,609
Gain on sale or transfer of assets	16,102	8,083	1,385
Net income (loss)	15,983	-152,361	-181,875
Net (income) loss attributable to noncontrolling interest	'	'	'
Noncontrolling interests in continuing operations	80	268	312
Noncontrolling interests in discontinued operations	-511	-8	113
Net income (loss) attributable to common stockholders	15,552	-152,101	-181,450
Basic and diluted weighted average common shares outstanding	299,191,861	298,372,324	296,351,253
Basic and diluted income (loss) per common share:	'	'	'
Continuing operations	($0.18)	($0.61)	($0.43)
Discontinued operations	$0.23	$0.10	($0.18)
Basic and diluted income (loss) per common share	$0.05	($0.51)	($0.61)
Net income (loss) attributable to common stockholders:	'	'	'
Continuing operations	-54,408	-183,063	-128,954
Discontinued operations	69,960	30,962	-52,496
Net income (loss) attributable to common stockholders	15,552	-152,101	-181,450
Comprehensive income (loss):	'	'	'
Net income (loss)	15,983	-152,361	-181,875
Other comprehensive income (loss): unrealized gain (loss) on interest rate derivatives	1,679	-772	-906
Comprehensive income (loss)	17,662	-153,133	-182,781
Comprehensive (income) loss attributable to noncontrolling interests	-434	261	426
Comprehensive income (loss) attributable to common stockholders	$17,228	($152,872)	($182,355)

Consolidated_Statements_of_Cha

Consolidated Statements of Changes in Equity (USD $)	Total	Convertible Stock	Common Stock	Additional Paid-in Capital	Cumulative Distributions and Net Loss Attributable to Common Stockholders	Accumulated Other Comprehensive Loss	Noncontrolling Interests
	USD ($)		USD ($)	USD ($)	USD ($)	USD ($)	USD ($)
Balance at Dec. 31, 2010	$1,166,498,000	'	$29,000	$2,632,290,000	($1,472,068,000)	$0	$6,247,000
Balance (in shares) at Dec. 31, 2010	'	1,000	295,276,000	'	'	'	'
Increase (Decrease) in Stockholders' Equity	'	'	'	'	'	'	'
Net income (loss)	-181,875,000	'	'	'	-181,450,000	'	-425,000
Unrealized gain (loss) on interest rate derivatives	-906,000	'	'	'	'	-905,000	-1,000
Amortization of restricted shares and units	0	'	'	'	'	'	'
Redemption of common stock	-4,288,000	'	'	-4,288,000	'	'	'
Redemption of common stock (in shares)	'	'	-942,000	'	'	'	'
Distributions declared	'	'	'	'	-29,635,000	'	'
Distributions declared, noncontrolling interest	'	'	'	'	'	'	-53,000
Distributions	-29,688,000	'	'	'	'	'	'
Shares issued pursuant to Distribution Reinvestment Plan	13,297,000	'	1,000	13,296,000	'	'	'
Shares issued pursuant to Distribution Reinvestment Plan (in shares)	'	'	2,922,000	'	'	'	'
Cost of share issuance	-11,000	'	'	-11,000	'	'	'
Acquisition of noncontrolling interest	-1,036,000	'	'	-1,567,000	'	'	531,000
Balance at Dec. 31, 2011	961,991,000	'	30,000	2,639,720,000	-1,683,153,000	-905,000	6,299,000
Balance (in shares) at Dec. 31, 2011	'	'	297,256,000	'	'	'	'
Increase (Decrease) in Stockholders' Equity	'	'	'	'	'	'	'
Net income (loss)	-27,840,000	'	'	'	'	'	'
Distributions declared, noncontrolling interest	'	'	'	'	'	'	-11,000
Distributions	-7,450,000	'	'	'	'	'	'
Balance at Mar. 31, 2012	'	'	'	'	'	'	'
Balance at Dec. 31, 2011	961,991,000	'	30,000	2,639,720,000	-1,683,153,000	-905,000	6,299,000
Balance (in shares) at Dec. 31, 2011	'	1,000	297,256,000	'	'	'	'
Increase (Decrease) in Stockholders' Equity	'	'	'	'	'	'	'
Net income (loss)	-152,361,000	'	'	'	-152,101,000	'	-260,000
Unrealized gain (loss) on interest rate derivatives	-772,000	'	'	'	'	-771,000	-1,000
Amortization of restricted shares and units	0	'	'	'	'	'	'
Redemption of common stock	-4,083,000	'	'	-4,083,000	'	'	'
Redemption of common stock (in shares)	'	'	-880,000	'	'	'	'
Cancellation of convertible stock (in shares)	'	-1,000	'	'	'	'	'
Distributions declared	'	'	'	'	-27,337,000	'	'
Distributions declared, noncontrolling interest	'	'	'	'	'	'	-410,000
Distributions	-27,747,000	'	'	'	'	'	'
Shares issued pursuant to Distribution Reinvestment Plan	13,066,000	'	0	13,066,000	'	'	'
Shares issued pursuant to Distribution Reinvestment Plan (in shares)	'	'	2,816,000	'	'	'	'
Cost of share issuance	-9,000	'	'	-9,000	'	'	'
Issuance of Series A Convertible Preferred Stock	-2,700,000	'	'	-2,700,000	'	'	'
Balance at Dec. 31, 2012	787,385,000	'	30,000	2,645,994,000	-1,862,591,000	-1,676,000	5,628,000
Balance (in shares) at Dec. 31, 2012	'	0	299,192,000	'	'	'	'
Balance at Sep. 30, 2012	'	'	'	'	'	'	'
Increase (Decrease) in Stockholders' Equity	'	'	'	'	'	'	'
Net income (loss)	-59,087,000	'	'	'	'	'	'
Distributions declared, noncontrolling interest	'	'	'	'	'	'	-10,000
Distributions	-4,991,000	'	'	'	'	'	'
Balance at Dec. 31, 2012	787,385,000	'	30,000	2,645,994,000	-1,862,591,000	-1,676,000	5,628,000
Balance (in shares) at Dec. 31, 2012	'	'	299,192,000	'	'	'	'
Increase (Decrease) in Stockholders' Equity	'	'	'	'	'	'	'
Net income (loss)	15,983,000	'	'	'	15,552,000	'	431,000
Unrealized gain (loss) on interest rate derivatives	1,679,000	'	'	'	'	1,676,000	3,000
Amortization of restricted shares and units	820,000	'	'	747,000	'	'	73,000
Distributions declared	'	'	'	'	0	'	'
Distributions declared, noncontrolling interest	'	'	'	'	'	'	-5,308,000
Distributions	-5,308,000	'	0	'	'	'	'
Balance at Dec. 31, 2013	$800,559,000	'	$30,000	$2,646,741,000	($1,847,039,000)	$0	$827,000
Balance (in shares) at Dec. 31, 2013	'	0	299,192,000	'	'	'	'

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities	'	'	'
Net income (loss)	$15,983	($152,361)	($181,875)
Adjustments to reconcile net income (loss) to net cash flows provided by operating activities:	'	'	'
Asset impairment losses	4,879	98,050	93,080
Gain on sale or transfer of assets	-16,102	-8,083	-1,385
Gain on sale or transfer of discontinued operations	-40,436	-20,130	-16,701
Gain on troubled debt restructuring	-36,856	-35,635	-39,066
Loss on early extinguishment of debt	2,787	0	0
Loss on derivatives	251	66	0
Amortization of restricted shares and units	820	0	0
Depreciation and amortization	171,119	195,077	221,169
Amortization of lease intangibles	355	757	1,831
Amortization of above/below market rent	-9,540	-11,741	-18,110
Amortization of deferred financing and mark-to-market costs	6,308	7,569	5,810
Equity in (earnings) losses of investments	-24,547	-1,725	2,302
Ownership portion of management and financing fees from unconsolidated entities	923	446	0
Distributions from investments	0	581	567
Change in accounts receivable	-7,999	-13,632	-25,705
Change in prepaid expenses and other assets	572	-1,945	360
Change in lease commissions	-15,520	-21,942	-33,783
Change in other lease intangibles	-961	-2,508	-3,291
Change in other intangible assets	0	-1,445	0
Change in accounts payable	1,847	436	-406
Change in accrued liabilities	-11,793	14,880	-3,499
Change in other liabilities	2,847	1,469	1,885
Change in payables to related parties	214	350	-820
Cash provided by operating activities	45,151	48,534	2,363
Cash flows from investing activities	'	'	'
Return of investments	36,310	2,278	780
Purchases of real estate	0	0	-1,035
Investments in unconsolidated entities	-1,500	-1,330	-4,057
Capital expenditures for real estate	-66,004	-67,301	-58,609
Capital expenditures for real estate under development	-39,180	-2,065	0
Proceeds from notes receivable	0	0	10,355
Proceeds from sale of discontinued operations	495,866	111,142	89,998
Proceeds from sale of assets	0	21,235	92,982
Change in restricted cash	28,954	21,022	-1,374
Cash provided by investing activities	454,446	84,981	129,040
Cash flows from financing activities	'	'	'
Financing costs	-2,362	-1,550	-14,273
Proceeds from notes payable	55,785	34,501	557,500
Payments on notes payable	-499,672	-147,494	-780,939
Payments on capital lease obligations	0	-44	-82
Redemptions of common stock	0	-4,083	-4,288
Offering costs	0	-9	-11
Distributions to common stockholders	0	-16,748	-16,323
Distributions to noncontrolling interests	-5,308	-415	-53
Cash used in financing activities	-451,557	-135,842	-258,469
Net change in cash and cash equivalents	48,040	-2,327	-127,066
Cash and cash equivalents at beginning of period	9,746	12,073	139,139
Cash and cash equivalents at end of period	$57,786	$9,746	$12,073

Business

Business	12 Months Ended
	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Business	'
	Business
	Organization
	TIER REIT, Inc. is a self-managed, Dallas, Texas-based real estate investment trust focused primarily on providing quality, attractive, well-managed, commercial office properties located in strategic markets throughout the United States. As used herein, the “Company,” “we,” “us” or “our” refers to TIER REIT, Inc. and its subsidiaries unless the context otherwise requires. TIER REIT, Inc., formerly known as Behringer Harvard REIT I, Inc., was incorporated in June 2002 as a Maryland corporation and has elected to be taxed, and currently qualifies, as a real estate investment trust, or REIT, for federal income tax purposes.  As of December 31, 2013, we owned interests in 38 operating properties and one development property located in 15 states and the District of Columbia.
	Substantially all of our business is conducted through Tier Operating Partnership LP (“Tier OP”), a Texas limited partnership.  Our wholly-owned subsidiary, Tier GP, Inc., a Delaware corporation, is the sole general partner of Tier OP.  Our direct and indirect wholly-owned subsidiaries, Tier Business Trust, a Maryland business trust, and Tier Partners, LLC, a Delaware limited liability company, are limited partners owning substantially all of Tier OP.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Summary of Significant Accounting Policies	'
	Summary of Significant Accounting Policies
	Use of Estimates in the Preparation of Financial Statements
	The preparation of financial statements in conformity with accounting principals generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  These estimates include such items as the purchase price allocation for real estate acquisitions, impairment of assets, timing of asset dispositions, duration of lease terms, depreciation and amortization and allowance for doubtful accounts.  Actual results could differ materially from those estimates.
	Principles of Consolidation and Basis of Presentation
	Our consolidated financial statements include our accounts, the accounts of variable interest entities (“VIEs”), if any, in which we are the primary beneficiary, and the accounts of other subsidiaries over which we have control.  All inter-company transactions, balances and profits have been eliminated in consolidation.  Interests in entities acquired are evaluated based on applicable GAAP which requires the consolidation of VIEs in which we are deemed to be the primary beneficiary.  If the interest is in an entity that is determined not to be a VIE, then the entity is evaluated for consolidation based on legal form, economic substance, and the extent to which we have control and/or substantive participating rights under the respective ownership agreement. We had no VIEs as of December 31, 2013, 2012 or 2011.
	Real Estate
	Upon the acquisition of real estate properties, we recognize the assets acquired, the liabilities assumed, and any noncontrolling interest as of the acquisition date, measured at their fair values.  The acquisition date is the date on which we obtain control of the real estate property.  The assets acquired and liabilities assumed may consist of land, inclusive of associated rights, buildings, assumed debt, identified intangible assets and liabilities and asset retirement obligations.  Identified intangible assets generally consist of above-market leases, in-place leases, in-place tenant improvements, in-place leasing commissions and tenant relationships.  Identified intangible liabilities generally consist of below-market leases.  Goodwill is recognized as of the acquisition date and measured as the aggregate fair value of the consideration transferred and any noncontrolling interests in the acquiree over the fair value of the identifiable net assets acquired.  Likewise, a bargain purchase gain is recognized in current earnings when the aggregate fair value of the consideration transferred and any noncontrolling interests in the acquiree is less than the fair value of the identifiable net assets acquired.  Acquisition-related costs are expensed in the period incurred.  Initial valuations are subject to change until our information is finalized, which is no later than twelve months from the acquisition date.
	The fair value of the tangible assets acquired, consisting of land and buildings, is determined by valuing the property as if it were vacant, and the “as-if-vacant” value is then allocated to land and buildings.  Land values are derived from appraisals, and building values are calculated as replacement cost less depreciation or management’s estimates of the fair value of these assets using discounted cash flow analyses or similar methods believed to be used by market participants.  The value of buildings is depreciated over the estimated useful life of 25 years using the straight-line method.
	We determine the fair value of assumed debt by calculating the net present value of the scheduled mortgage payments using interest rates for debt with similar terms and remaining maturities that management believes we could obtain at the date of the debt assumption.  Any difference between the fair value and stated value of the assumed debt is recorded as a discount or premium and amortized over the remaining life of the loan using the effective interest method.
	We determine the value of above-market and below-market leases for acquired properties based on the present value (using an interest rate that reflects the risks associated with the leases acquired) of the difference between (1) the contractual amounts to be paid pursuant to the in-place leases and (2) management’s estimate of current market lease rates for the corresponding in-place leases, measured over a period equal to (a) the remaining non-cancelable lease term for above-market leases, or (b) the remaining non-cancelable lease term plus any below-market fixed rate renewal options that, based on a qualitative assessment of several factors, including the financial condition of the lessee, the business conditions in the industry in which the lessee operates, the economic conditions in the area in which the property is located, and the ability of the lessee to sublease the property during the renewal term, are reasonably assured to be exercised by the lessee for below-market leases.  We record the fair value of above-market and below-market leases as intangible assets or intangible liabilities, respectively, and amortize them as an adjustment to rental income over the determined lease term.
	The total value of identified real estate intangible assets acquired is further allocated to in-place leases, in-place tenant improvements, in-place leasing commissions and tenant relationships based on our evaluation of the specific characteristics of each tenant’s lease and our overall relationship with that respective tenant.  The aggregate value for tenant improvements and leasing commissions is based on estimates of these costs incurred at inception of the acquired leases, amortized through the date of acquisition.  The aggregate value of in-place leases acquired and tenant relationships is determined by applying a fair value model.  The estimates of fair value of in-place leases include an estimate of carrying costs during the expected lease-up periods for the respective spaces considering current market conditions.  In estimating the carrying costs that would have otherwise been incurred had the leases not been in place, we include such items as real estate taxes, insurance and other operating expenses as well as lost rental revenue during the expected lease-up period based on current market conditions.  The estimates of the fair value of tenant relationships also include costs to execute similar leases including leasing commissions, legal fees and tenant improvements as well as an estimate of the likelihood of renewal as determined by management on a tenant-by-tenant basis. We amortize the value of in-place leases, in-place tenant improvements and in-place leasing commissions to expense over the initial term of the respective leases.  The tenant relationship values are amortized to expense over the initial term and any anticipated renewal periods, but in no event does the amortization period for intangible assets or liabilities exceed the remaining depreciable life of the building.  Should a tenant terminate its lease, the unamortized portion of the acquired intangibles related to that tenant would be charged to expense.
	The estimated remaining useful lives for acquired lease intangibles range from an ending date of January 2014 to an ending date of November 2025.  Anticipated amortization associated with the acquired lease intangibles for each of the next five years is as follows (in thousands):
	2014	$	13,428
	2015	$	9,324
	2016	$	6,370
	2017	$	3,824
	2018	$	3,033
	As of December 31, 2013 and 2012, accumulated depreciation and amortization related to our consolidated real estate properties and related lease intangibles were as follows (in thousands):
							Lease Intangibles
							Assets						Liabilities
			Buildings and Improvements				Other Lease Intangibles			Acquired Above-Market Leases			Acquired Below-Market Leases
	as of December 31, 2013
	Cost		$	2,255,384			$	305,233		$	19,264		$	(76,750	)
	Less: accumulated depreciation and amortization		(586,585		)		(177,088		)	(13,045		)	52,180
	Net		$	1,668,799			$	128,145		$	6,219		$	(24,570	)
							Lease Intangibles
							Assets						Liabilities
			Buildings and Improvements				Other Lease Intangibles			Acquired Above-Market Leases			Acquired Below-Market Leases
	as of December 31, 2012
	Cost		$	2,823,672			$	420,399		$	27,539		$	(124,060	)
	Less: accumulated depreciation and amortization		(593,389		)		(224,705		)	(17,646		)	72,842
	Net		$	2,230,283			$	195,694		$	9,893		$	(51,218	)
	Real Estate Development
	We capitalize project costs related to the development and construction of real estate (including interest and related loan fees, property taxes, insurance, and other direct costs associated with the development) as a cost of the development. Indirect costs not clearly related to development and construction are expensed as incurred. Capitalization begins when we determine that the development is probable and significant development activities are underway. We cease capitalization when the development is completed and ready for its intended use, or if the intended use changes such that capitalization is no longer appropriate.
	Impairment of Real Estate Related Assets
	For our consolidated real estate assets, we monitor events and changes in circumstances indicating that the carrying amounts of the real estate assets may not be recoverable.  When such events or changes in circumstances are present, we assess potential impairment by comparing estimated future undiscounted cash flows expected to be generated over the life of the asset including its eventual disposition, to the carrying amount of the asset.  In the event that the carrying amount exceeds the estimated future undiscounted cash flows and also exceeds the fair value of the asset, we recognize an impairment loss to adjust the carrying amount of the asset to its estimated fair value. Our process to estimate the fair value of an asset involves using third-party broker valuation estimates, bona fide purchase offers or the expected sales price of an executed sales agreement, which would be considered Level 1 or Level 2 assumptions within the fair value hierarchy. To the extent that this type of third-party information is unavailable, we estimate projected cash flows and a risk-adjusted rate of return that we believe would be used by a third party market participant in estimating the fair value of an asset. This is considered a Level 3 assumption within the fair value hierarchy. These projected cash flows are prepared internally by the Company’s asset management professionals and are updated quarterly to reflect in place and projected leasing activity, market revenue and expense growth rates, market capitalization rates, discount rates, and changes in economic and other relevant conditions. The Company’s Chief Financial Officer, Chief Investment Officer and Chief Accounting Officer review these projected cash flows to assure that the valuation is prepared using reasonable inputs and assumptions which are consistent with market data or with assumptions that would be used by a third party market participant and assume the highest and best use of the real estate investment. For the years ended December 31, 2013, 2012 and 2011, we recorded non-cash impairment charges of approximately $4.9 million, $98.1 million and $92.8 million, respectively, related to the impairment of consolidated real estate assets, including discontinued operations.  The impairment losses recorded were primarily related to assets assessed for impairment due to changes in management’s estimates of the intended hold period for certain of our properties and the sale or held for sale classification of certain properties.
	For our unconsolidated real estate assets, at each reporting date we compare the estimated fair value of our investment to the carrying amount.  An impairment charge is recorded to the extent the fair value of our investment is less than the carrying amount and the decline in value is determined to be other than a temporary decline.  We had no impairment charges related to our investments in unconsolidated entities for the years ended December 31, 2013 and 2012. For the year ended December 31, 2011, we recorded non-cash impairment charges of approximately $0.3 million related to the impairment of our investments in unconsolidated entities.
	In evaluating our investments for impairment, management makes several estimates and assumptions, including, but not limited to, the projected date of disposition and sales price for each property, the estimated future cash flows of each property during our estimated ownership period, and for unconsolidated investments, the estimated future distributions from the investment.  A change in these estimates and assumptions could result in understating or overstating the carrying amount of our investments which could be material to our financial statements.
	We undergo continuous evaluations of property level performance, credit market conditions and financing options.  If our assumptions regarding the cash flows expected to result from the use and eventual disposition of our properties decrease or our expected hold periods decrease, we may incur future impairment charges on our real estate related assets.  In addition, we may incur impairment charges on assets classified as held for sale in the future if the carrying amount of the asset upon classification as held for sale exceeds the estimated fair value, less costs to sell.
	Cash and Cash Equivalents
	We consider investments in highly-liquid money market funds or investments with original maturities of three months or less to be cash equivalents.
	Restricted Cash
	Restricted cash includes restricted money market accounts, as required by our lenders or by leases, for anticipated tenant improvements, property taxes and insurance and certain tenant security deposits for our consolidated properties, as well as cash committed as part of a sale agreement for renovations at a recently disposed property.
	Accounts Receivable, net
	The following is a summary of our accounts receivable as of December 31, 2013 and 2012 (in thousands):
			December 31, 2013				31-Dec-12
	Straight-line rental revenue receivable		$	88,370			$	102,789
	Tenant receivables		9,389				9,374
	Non-tenant receivables		714				1,050
	Allowance for doubtful accounts		(1,289		)		(1,263		)
	Total		$	97,184			$	111,950
	Prepaid Expenses and Other Assets
	Prepaid expenses and other assets include prepaid insurance, prepaid real estate taxes, utility and other deposits of the properties we consolidate, as well as our deferred tax assets and prepaid directors’ and officers’ insurance.
	Investments in Unconsolidated Entities
	Investments in unconsolidated entities at December 31, 2013, consist of our noncontrolling interests in the Wanamaker Building and Paces West properties, in addition to our remaining investment in the entity that sold the 200 South Wacker property in December 2013.
	We account for these investments using the equity method of accounting in accordance with GAAP.  The equity method of accounting requires these investments to be initially recorded at cost and subsequently increased (decreased) for our share of net income (loss), including eliminations for our share of inter-company transactions, and increased (decreased) for contributions (distributions).  We use the equity method of accounting because the shared decision-making involved in these investments creates an opportunity for us to have some influence on the operating and financial decisions of these investments and thereby creates some responsibility by us for a return on our investment.  While we own a 60% majority of the Wanamaker Building, major decisions require at least a vote of 70% of the ownership group; therefore, this investment is presented using the equity method of accounting.
	Deferred Financing Fees, net
	Deferred financing fees are recorded at cost and are amortized to interest expense using a straight-line method that approximates the effective interest method over the anticipated life of the related debt. The following is a summary of our deferred financing fees as of December 31, 2013 and 2012 (in thousands):
		December 31, 2013				December 31,
						2012
	Cost	$	26,044			$	36,101
	Less: accumulated amortization	(16,066		)		(19,850		)
	Net	$	9,978			$	16,251
Other Intangible Assets
Other intangible assets include an above-market ground lease on a property where a third party owns and has leased the underlying land to us and, for the year ended December 31, 2012, our license to use the Behringer Harvard name and logo. In June 2013, we changed our name to TIER REIT, Inc. and no longer use the Behringer Harvard name or logo, and the asset was fully amortized. As of December 31, 2013 and 2012, the cost basis and accumulated amortization related to our consolidated other intangibles assets were as follows (in thousands):
	December 31, 2013				31-Dec-12
Cost	$	2,978			$	4,422
Less: accumulated depreciation and amortization	(715		)		(765		)
Net	$	2,263			$	3,657
We amortize the value of other intangible assets to expense over the estimated remaining useful life which has an ending date of December 2032. Anticipated amortization associated with other intangible assets for each of the following five years is as follows (in thousands):
2014	$	119
2015	$	119
2016	$	119
2017	$	119
2018	$	119
Real Estate Held for Sale
We classify properties as held for sale when certain criteria are met, in accordance with GAAP.  At that time, we present the assets and obligations associated with the real estate held for sale separately in our consolidated balance sheet, and we cease recording depreciation and amortization expense related to that property.  Properties held for sale are reported at the lower of their carrying amount or their estimated fair value less estimated costs to sell.  We had no properties held for sale as of December 31, 2013. As of December 31, 2012, our 600 & 619 Alexander Road property was classified as held for sale and a sale was completed on February 15, 2013.
Asset Retirement Obligations
We record the fair value of any conditional asset retirement obligations if they can be reasonably estimated.  As part of the anticipated renovation of acquired properties, we will incur costs for the abatement of regulated materials, primarily asbestos-containing materials, as required under environmental regulations.  Our estimate of the fair value of the liabilities is based on future anticipated costs to be incurred for the legal removal or remediation of the regulated materials.  As of December 31, 2013 and 2012, the balance of our asset retirement obligations was approximately $2.7 million and $7.8 million, respectively, and was included in other liabilities.
Derivative Financial Instruments
We record all derivatives on the balance sheet at fair value.  The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether we have elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting.  Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges.  For derivatives designated as fair value hedges, the changes in the fair value of both the derivative instrument and the hedged items are recorded in earnings. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges.  For derivatives designated as cash flow hedges, the effective portions of changes in the fair value of the derivative are reported in accumulated other comprehensive income (loss) and are subsequently reclassified into earnings when the hedged item affects earnings.  Changes in the fair value of derivative instruments not designated as hedges and ineffective portions of hedges are recognized in earnings in the affected period.  Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge.  We may enter into derivative contracts that are intended to economically hedge certain of our risk, even though hedge accounting does not apply or we elect not to apply hedge accounting.
As of December 31, 2013 and 2012, we do not have any derivatives designated as fair value hedges or hedges of net investments in foreign operations, nor are derivatives being used for trading or speculative purposes.
Valuation of Series A Convertible Preferred Stock
On September 4, 2012, we issued 10,000 shares of Series A participating, voting, convertible preferred stock (the “Series A Convertible Preferred Stock”) to Behringer Harvard Services Holdings, LLC (“Services Holdings”) as described further in Footnote 13 (Equity). The shares of Series A Convertible Preferred Stock are initially recorded at fair value and classified as temporary equity, outside the stockholders’ equity section, on our consolidated balance sheets. In estimating the fair value of these shares, management considered various potential outcomes for the conversion of the shares within the context of a probability weighted expected returns model. Subsequent to the date of issuance, the Series A Convertible Preferred Stock is adjusted to its maximum redemption value at the end of each reporting period. However, to the extent that the maximum redemption value of the Series A Convertible Preferred Stock does not exceed the fair value of the shares at the date of issuance, the shares are not adjusted below the fair value at the date of issuance. The maximum redemption value of the Series A Convertible Preferred Stock at December 31, 2013, is not greater than the fair value of these shares at the date of issuance. Therefore, no adjustment to the book value of these shares has been recorded.
Revenue Recognition
We recognize rental income generated from all leases of consolidated real estate assets on a straight-line basis over the terms of the respective leases, including the effect of rent holidays, if any.  The total net increase to rental revenues due to straight-line rent adjustments for the years ended December 31, 2013, 2012 and 2011, was approximately $6.4 million, $16.1 million, and $25.0 million, respectively, and includes amounts recognized in discontinued operations.  Our rental revenue also includes amortization of acquired above- and below-market leases.  The total net increase to rental revenues due to the amortization of acquired above- and below-market leases for the years ended December 31, 2013, 2012 and 2011, was approximately $9.5 million, $11.7 million, and $18.1 million, respectively, and includes amounts recognized in discontinued operations. Revenues relating to lease termination fees are recognized on a straight-line basis amortized from the time that a tenant’s right to occupy the leased space is modified through the end of the revised lease term.  We recognized lease termination fees of approximately $2.3 million, $1.2 million, and $7.2 million for the years ended December 31, 2013, 2012 and 2011, respectively, which includes amounts recognized in discontinued operations.
Income Taxes
We have elected to be taxed as a REIT under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the “Code”), and have qualified as a REIT since the year ended December 31, 2004.  To qualify as a REIT, we must meet a number of organizational and operational requirements, including a requirement that we distribute at least 90% of our REIT taxable income (excluding net capital gains) to our stockholders.  As a REIT, we generally will not be subject to federal income tax at the corporate level (except to the extent we distribute less than 100% of our taxable income and/or net taxable capital gains). We generate certain of our taxable income through various taxable REIT subsidiary (“TRS”) entities. The taxable income of our TRS entities is subject to applicable federal, state, and local income and margin taxes.
Stock Based Compensation
We have a stock-based incentive award plan for our employees, independent directors and consultants.  Compensation cost for restricted stock and restricted stock units are measured at the grant date, based on the estimated fair value of the award and will be recognized as expense over the service period based on the tiered lapse schedule and estimated forfeiture rates. Stock options are granted at the fair market value on the date of grant with fair value estimated using the Black-Scholes-Merton option valuation model, which incorporates assumptions surrounding volatility, distribution yield, the risk-free interest rate, expected life, and the exercise price as compared to the underlying stock price on the grant date. Any tax benefits associated with these share-based payments are classified as financing activities in the consolidated statements of cash flows.  For the year ended December 31, 2013, we had approximately $0.8 million in compensation costs related to share-based payments. For the years ended December 31, 2012 and 2011, we had no significant compensation cost related to share-based payments.
401(k) Plan
We have a 401(k) defined contribution plan (“401(k) Plan”) for the benefit of our eligible employees. Each employee may contribute up to 100% of their annual compensation, subject to specific limitations under the Code.  Our 401(k) Plan allows us to make discretionary contributions during each plan year. We made approximately $0.1 million in employer contributions during the year ended December 31, 2013, and no employer contributions during the year ended December 31, 2012.
Redeemable Common Stock
Our board of directors had previously authorized a share redemption program to provide limited interim liquidity to stockholders.  In December 2012, our board of directors made a determination to suspend all redemptions until further notice. Our board maintains its right to reinstate the share redemption program, subject to the limits set forth in the program, if it deems it to be in the best interest of the Company.
GAAP requires securities that are convertible for cash at the option of the holder to be classified outside of equity.  Accordingly, we did not reclassify the shares to be redeemed from equity to a liability until such time as the redemption was formally approved.
Concentration of Credit Risk
We have cash and cash equivalents and restricted cash deposited in certain financial institutions in excess of federally insured levels.  We have diversified our accounts with several banking institutions in an attempt to minimize exposure to any one of these institutions.  We regularly monitor the financial stability of these financial institutions and believe that we are not exposed to significant credit risk in cash and cash equivalents or restricted cash.
We have a concentration of properties located in each of Houston, Texas; Chicago, Illinois; and Philadelphia, Pennsylvania, which subjects us to the business risk associated with our geographic concentration in these markets. The percentage of our total rental revenue from these markets for the years ended December 31, 2013, 2012 and 2011, are 48%, 45%, and 45%.
Noncontrolling Interests
Noncontrolling interests consists of our third-party partners’ proportionate share of equity in certain consolidated real estate properties, limited partnership units issued to third parties, restricted stock units issued to our independent directors, and for the year ended December 31, 2012, preferred stock issued by IPC (US), Inc.
Earnings per Share
Earnings per share is calculated based on the weighted average number of common shares outstanding during each period.  As of December 31, 2013, we had options to purchase 75,000 shares of common stock outstanding at a weighted average exercise price of $6.69 per share.  As of December 31, 2012, we had options to purchase 97,250 shares of common stock outstanding at a weighted average exercise price of $7.17 per share. As of December 31, 2011, we had options to purchase 92,875 shares of common stock outstanding at a weighted average exercise price of $7.77 per share. At December 31, 2013, 2012 and 2011, Tier OP had 432,586 units of limited partnership interest held by third parties.  These units of limited partnership interest are convertible into an equal number of shares of our common stock.  As of December 31, 2013 and 2012, we had 10,000 shares of Series A participating, voting, convertible preferred stock outstanding. The options, units of limited partnership interest and convertible preferred stock are excluded from the calculation of earnings per share for all periods presented in this report because the effect would be anti-dilutive.  Gain on sale of assets is included in the calculation of loss from continuing operations per share in accordance with SEC guidelines.
Reportable Segments
Our current business consists of owning, operating, acquiring, developing, investing in, and disposing of real estate assets.  All of our consolidated revenues are from our consolidated real estate properties.  Our chief operating decision maker evaluates operating performance on an individual property level and views all of our real estate assets as one industry segment. Accordingly, all of our properties are aggregated into one reportable segment.
Subsequent Events
We have evaluated subsequent events for recognition or disclosure in our consolidated financial statements.

New_Accounting_Pronouncements

New Accounting Pronouncements	12 Months Ended
	Dec. 31, 2013
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]	'
New Accounting Pronouncements	'
	New Accounting Pronouncements
	In February 2013 the Financial Accounting Standards Board (“FASB”) issued further clarification on how to report the effect of significant reclassifications out of accumulated other comprehensive income (loss) (“OCI”). This guidance was effective for the first interim or annual period beginning on or after December 15, 2012.  The adoption of this guidance did not have a material impact on our financial statements or disclosures.
	In February 2013 the FASB issued updated guidance for the measurement and disclosure of obligations.  The guidance requires an entity to measure obligations resulting from joint and several liability arrangements for which the total amount of the obligation within the scope of this guidance is fixed at the reporting date as the sum of the amount the reporting entity agreed to pay on the basis of its arrangement among its co-obligors and any additional amount the reporting entity expects to pay on behalf of its co-obligors. The guidance in the update also requires an entity to disclose the nature and amount of the obligation as well as other information about those obligations. This guidance is effective for the first interim or annual period beginning on or after December 15, 2013.  The adoption of this guidance will not have a material impact on our financial statements or disclosures.

Fair_Value_Measurements

Fair Value Measurements

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

'

Fair Value Measurements

'

Fair Value Measurements

Fair value, as defined by GAAP, is a market-based measurement, not an entity-specific measurement.  Therefore, a fair value measurement should be determined based on the assumptions that market participants would use in pricing an asset or liability.  As a basis for considering market participant assumptions in fair value measurements, a fair value hierarchy that distinguishes between market participant assumptions based on market data obtained from sources independent of the reporting entity (observable inputs that are classified within Levels 1 and 2 of the hierarchy) and the reporting entity’s own assumptions about market participant assumptions (unobservable inputs classified within Level 3 of the hierarchy) has been established.

Assets and Liabilities Measured at Fair Value on a Recurring Basis

Derivative financial instruments

We have used interest rate swaps and caps to manage our interest rate risk. The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis of the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The fair values of interest rate swaps and caps are determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments) and the discounted expected variable cash payments (or receipts).  The variable cash payments (or receipts) are based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves.

We incorporate credit valuation adjustments (“CVAs”) to appropriately reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of our derivative contracts for the effect of nonperformance risk, we have considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees.

Although we have determined that the majority of the inputs used to value our derivatives fall within Level 2 of the fair value hierarchy, the CVAs associated with our derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by us and our counterparties.  However, we have assessed the significance of the impact of the CVAs on the overall valuation of our derivative positions and have determined that they are not significant.  As a result, we have determined that our derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.  Unrealized gains or losses on derivatives are recorded in OCI within equity at each measurement date.

Our derivative financial instruments are included in “other liabilities” on our consolidated balance sheets.

We have no interest rate caps or swaps in place at December 31, 2013. The following table sets forth our financial liabilities measured at fair value on a recurring basis, which equals book value, by level within the fair value hierarchy as of December 31, 2012 (in thousands).

Basis of Fair Value Measurements

Quoted Prices In Active Markets for Identical Items (Level 1)

Significant Other Observable Inputs (Level 2)

Significant Unobservable Inputs (Level 3)

Total Fair Value

Description

31-Dec-12

Liabilities:

Derivative financial instruments

$

(1,427

)

$

—

$

(1,427

)

$

—

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Impairment of Real Estate Related Assets

We have recorded non-cash impairment charges related to a reduction in the fair value of certain of our assets.  The inputs used to calculate the fair value of these assets included projected cash flows and a risk-adjusted rate of return that we estimated would be used by a market participant in valuing these assets or by obtaining third-party broker valuation estimates, bona fide purchase offers or the expected sales price of an executed sales agreement.

During 2013, we recorded impairment losses of approximately $4.9 million for a property that was disposed. We had no impairment losses for any of our assets in continuing operations. The following table summarizes those assets which were measured at fair value and impaired during 2012 (in thousands):

Basis of Fair Value Measurements

Description

Fair Value

Quoted Prices

Significant

Significant

Total

of Assets at Impairment

In Active

Other

Unobservable

Losses (1) (2)

Markets for

Observable

Inputs

Identical Items

Inputs

(Level 3)

(Level 1)

(Level 2)

2012

Real estate

$

303,254

$

—

$

—

$

303,254

$

(97,323

)

____________

-1

Excludes approximately $0.7 million in impairment losses of our discontinued operations.

-2

Includes approximately $12.8 million in impairment losses for properties that were disposed of and included in discontinued operations subsequent to December 31, 2012.

The following table sets forth quantitative information about the unobservable inputs (Level 3) of our real estate that was recorded at fair value as of the date of its impairment during the year ended December 31, 2012 (in thousands):

Fair Value of Assets at Impairment

Valuation Technique

Unobservable Input

Range

Real estate on which impairment losses were recognized

$

303,254

Discounted Cash Flow

Discount rate

7.05% - 13.00%

Terminal capitalization rate

6.10% - 10.00%

Market rent growth rate

0% - 3.00%

Expense growth rate

0% - 3.00%

Financial Instruments not Reported at Fair Value

Financial instruments held at December 31, 2013 and 2012, but not measured at fair value on a recurring basis include cash and cash equivalents, restricted cash, accounts receivable, notes payable, accounts payable, payables to related parties, accrued liabilities and other liabilities. With the exception of notes payable, the financial statement carrying amounts of these items approximate their fair values due to their short-term nature. Estimated fair values for notes payable have been determined using recent trading activity and/or bid-ask spreads and are classified as Level 2 in the fair value hierarchy.

Carrying amounts and the related estimated fair value of our notes payable as of December 31, 2013 and 2012, are as follows (in thousands):

December 31, 2013

December 31, 2012

Carrying Amount

Fair Value

Carrying Amount

Fair Value

Notes Payable

$

1,490,367

$

1,510,691

$

2,107,380

$

2,128,724

Real_Estate_Activities

Real Estate Activities	12 Months Ended
	Dec. 31, 2013
Real Estate [Abstract]	'
Real Estate Activities	'
	Real Estate Activities
	The following table provides a summary of the consolidated properties we disposed of during the years ended December 31, 2013 and 2012 (in thousands):
			Date of Disposal		Rentable Square Footage (unaudited)	Contract Sales Price		Proceeds from Sale (1)
	Property Name			Location
	2013
	600 & 619 Alexander Road		2/15/13	Princeton, NJ	97	$	9,600	$	9,128
	5 & 15 Wayside		3/22/13	Burlington, MA	270	69,321		65,652
	Riverview Tower		5/2/13	Knoxville, TN	334	24,250		—
	Epic Center (2)		5/13/13	Wichita, KS	289	—		—
	One Brittany Place (2)		5/13/13	Wichita, KS	57	—		—
	Two Brittany Place (2)		5/13/13	Wichita, KS	58	—		—
	Tice Building (2)		8/30/13	Woodcliff Lakes, NJ	120	—		—
	One Edgewater Plaza (2)		8/30/13	Staten Island, NY	252	—		—
	Energy Centre		9/12/13	New Orleans, LA	757	86,500		80,720
	Ashford Perimeter (2)		9/13/13	Atlanta, GA	288	—		—
	10 & 120 South Riverside		11/14/13	Chicago, IL	1,411	361,000		340,366
					3,933	$	550,671	$	495,866
	2012
	Minnesota Center (2)		1/5/12	Bloomington, MN	276	$	—	$	—
	Southwest Center		5/15/12	Tigard, OR	89	10,600		10,334
	4440 El Camino Real		6/28/12	Los, Altos, CA	97	48,000		46,988
	One City Centre		9/20/12	Houston, TX	609	131,000		53,820
	17655 Waterview (2)		12/4/12	Richardson, TX	230	—		—
					1,301	$	189,600	$	111,142
	____________
	-1	In 2013, proceeds from sale are reduced by approximately $24.3 million in debt assumed by the purchasers and includes approximately $407.0 million in debt paid off with the proceeds of the sale of the properties. In 2012, proceeds from sale are reduced by approximately $73.1 million in debt assumed by the purchasers and include approximately $108.1 million in debt paid off with the proceeds from the sale of the properties.
	-2	Ownership of each of these properties was transferred to the lender pursuant to a foreclosure or deed-in-lieu of foreclosure.

Investments_in_Unconsolidated_

Investments in Unconsolidated Entities	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Investments in Unconsolidated Entities	'
	Investments in Unconsolidated Entities
	Investments in unconsolidated entities consists of our noncontrolling interests in certain properties.  On January 8, 2013, we sold our previously wholly-owned Paces West property to a joint venture in which we own a 10% noncontrolling interest. The contract sales price of the property was approximately $82.3 million, and the acquiring joint venture assumed the approximately $82.3 million collateralized debt from us, resulting in no sales proceeds to us. The property was deconsolidated and a gain of approximately $16.1 million was recognized in continuing operations. On December 19, 2013, the 200 South Wacker property was sold to an unaffiliated third party for a contract sales price of approximately $214.5 million, resulting in approximately $26.7 million in return on investment to us. We continue to own an investment in the entity that sold the 200 South Wacker property, but there are no ongoing operations related to the investment.
	The following is a summary of our investments in unconsolidated entities as of December 31, 2013 and 2012 (in thousands):
		Ownership Interest
	Property Name	December 31, 2013	31-Dec-12	December 31, 2013		31-Dec-12
	Wanamaker Building	60.00%	60.00%	$	39,229	$	49,332
	200 South Wacker (1)	9.87%	9.87%	1,495		3,616
	Paces West	10.00%	100.00%	1,038		—
	Total			$	41,762	$	52,948
	______________
	(1) As a result of the sale of this property in December 2013, based on the operating agreement, our economic interest in the entity was promoted to 30%.
	For the year ended December 31, 2013, we recorded approximately $24.5 million of equity in earnings and approximately $36.3 million of distributions from our investments in unconsolidated entities, which includes approximately $25.1 million from the gain on the sale of 200 South Wacker. For the year ended December 31, 2012, we recorded approximately $1.7 million of equity in earnings and approximately $2.9 million of distributions from our investments in unconsolidated entities.

Noncontrolling_Interests

Noncontrolling Interests	12 Months Ended
	Dec. 31, 2013
Noncontrolling Interest [Abstract]	'
Noncontrolling Interests	'
	Noncontrolling Interests
	Noncontrolling interests consists of our third-party partners’ proportionate share of equity in certain consolidated real estate properties, limited partnership units issued to third parties, restricted stock issued to our independent directors, and in 2012, preferred stock issued by IPC (US), Inc. The following table is a summary of our noncontrolling interest investments as of December 31, 2013 and 2012 (in thousands):
		December 31, 2013		December 31, 2012
	Noncontrolling interests in real estate properties	$	20	$	4,929
	Limited partnership units	734		709
	Restricted stock units	73		—
	IPC (US), Inc. preferred shares	—		(10		)
	Total	$	827	$	5,628

Real_Estate_Under_Development

Real Estate Under Development	12 Months Ended
	Dec. 31, 2013
Real Estate Under Development [Abstract]	'
Real Estate Under Development	'
	Real Estate Under Development
	We capitalize interest, property taxes, insurance, and direct construction costs on our real estate under development, which includes the development of a new commercial office building located at 2050 W. Sam Houston Parkway in Houston, Texas (“Two BriarLake Plaza”). For the year ended December 31, 2013, we capitalized a total of approximately $45.2 million for the development of Two BriarLake Plaza, including approximately $1.1 million in interest. For the year ended December 31, 2012, we capitalized a total of approximately $3.5 million for the development of Two BriarLake Plaza, including approximately $0.1 million in interest. Total real estate under development at December 31, 2013, was approximately $51.1 million, which includes previously purchased land of approximately $2.5 million. We have a construction loan that will provide up to $66.0 million in available borrowings for the development. As of December 31, 2013, approximately $16.8 million has been drawn on the construction loan.

Leasing_Activity

Leasing Activity	12 Months Ended
	Dec. 31, 2013
Leases [Abstract]	'
Leasing Activity Disclosure	'
	Leasing Activity
	As Lessor
	Future minimum base rental payments due to us under non-cancelable leases in effect as of December 31, 2013, for operating properties we consolidate are as follows (in thousands):
	Year	Amount
	2014	$	231,878
	2015	217,383
	2016	197,959
	2017	169,365
	2018	141,870
	Thereafter	377,768
	Total	$	1,336,223
	As Lessee
	We have land that is subject to long-term ground leases and we lease space and office equipment for our corporate office. Total rent expense for the years ended December 31, 2013, 2012 and 2011, was approximately $1.2 million, $1.1 million and $1.2 million, respectively. Future minimum base rental payments payable by us under these non-cancelable leases are as follows (in thousands):
	Year	Amount
	2014	$	1,217
	2015	1,221
	2016	1,228
	2017	825
	2018	707
	Thereafter	21,604
	Total	$	26,802

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	We have elected to be taxed as a REIT under the Code, and have qualified as a REIT since the year ended December 31, 2004.  To qualify as a REIT, we must meet a number of organizational and operational requirements, including a requirement that we distribute at least 90% of our REIT taxable income (excluding net capital gains) to our stockholders.  As a REIT, we generally will not be subject to federal income tax at the corporate level (except to the extent we distribute less than 100% of our taxable income and/or net taxable capital gains).  Generally, the Internal Revenue Service (“IRS”) can include returns filed within the last three years in an audit.  Therefore, our tax returns filed for the years 2010 through 2012 are still subject to such examination.  If a return filed was examined and a substantial error was discovered, the IRS has the right to add additional years to their audit, but will not go back more than six years.
	We acquired the subsidiaries of IPC on December 12, 2007, and elected for IPC (US), Inc. to be taxed as a REIT for federal income tax purposes commencing with the tax year ended December 31, 2008.  We believe that IPC (US), Inc. was organized and operated in a manner to qualify for this election through December 31, 2013. On March 14, 2003, the IRS released final regulations concerning the treatment of net built-in gains of C-corporation assets that become assets of a REIT in a carryover basis transaction. The regulations generally require that unless the C-corporation elects to recognize gains and be subject to corporate-level tax as if it had sold all the assets transferred at fair market value at the time of the transaction, then the REIT will be subject to the rules of Section 1374 of the Code. In general terms, Section 1374 subjects the REIT to the maximum corporate-level tax rate on these built-in gains upon a taxable disposition of these assets that occurs within ten years from the date the REIT acquired the assets.  However, the IRS added special rules regarding taxable years beginning in 2012 and 2013 to change the recognition period from ten years to five years. As a result, on December 31, 2013, IPC (US), Inc. filed legal documents to convert into a single member limited liability company (“single member LLC”) called IPC (US), LLC and ceased to elect REIT status. Since our acquisition of IPC (US), Inc. has now passed the five year recognition period, the December 31, 2013, conversion to IPC (US), LLC and the resulting tax liquidation will not be subject to the rules under Section 1374 and no built in gains tax liability will be incurred. Instead, this conversion to a single member LLC created, for federal income tax purposes, a taxable liquidation, and gains and/or losses will be recognized as calculated for the amount the fair value of the assets differs from the tax basis of the assets. Accordingly, we have not recorded an income tax provision, or deferred taxes, except for the net operating loss carry-forward and other deferred tax liabilities discussed below, with respect to IPC. The change from REIT status to IPC (US), LLC will eliminate duplicative efforts and complexities and serve to simplify the overall structure of our business.
	At December 31, 2012, IPC (US), Inc. and its subsidiaries had approximately $55.8 million of federal net operating loss (“NOL”) carryovers incurred prior to our acquisition of IPC (US), Inc. The deferred tax asset associated with these NOL carryovers was approximately $19.5 million, of which the full amount was reserved. With some limitations, these could have been used to offset some or all of any realized built in gain subject to tax. However, as a result of the December 31, 2013, conversion of IPC (US), Inc. to IPC (US), LLC, these NOL carryovers have been forfeited, and the deferred asset associated with the federal NOL carryovers has been reduced to zero.
	At December 31, 2013 and 2012, our deferred tax assets and liabilities are as follows (in thousands):
		Year Ended December 31,
		2013			2012
	Deferred tax assets:
	C-Corp net operating losses (IPC)	$	—		$	19,532
	Net operating losses	2,598			2,626
	Depreciation and amortization	2,628			2,402
	Other	9			358
	Deferred tax assets, gross	5,235			24,918
	Valuation allowance	(3,234		)	(22,315		)
	Deferred tax assets, net	$	2,001		$	2,603
	Deferred tax liabilities:
	Deferred revenue	$	764		$	645
	Depreciation and amortization	2,505			3,652
	Other	5			7
	Deferred tax liabilities	$	3,274		$	4,304
	Amounts recognized in the consolidated balance sheets:
	Deferred tax assets	$	40		$	491
	Deferred tax liabilities	$	1,313		$	2,192
	The following table summarizes the changes in our valuation allowance for the years ended December 31, 2013, 2012 and 2011 (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Balance at beginning of year	$	22,315		$	22,385		$	22,160
	Additions charged to expense	451			—			225
	Deductions	(19,532		)	(70		)	—
	Balance at end of year	$	3,234		$	22,315		$	22,385
	Additions to our valuation allowance for certain of our deferred tax assets related to state NOLs were necessary based on our determination that it was more likely than not that we will not realize these assets prior to their expiration.
	We recognize the impact of our tax return positions in our financial statements if it is more likely than not that the tax position will be sustained upon examination (defined as a likelihood of more than fifty percent of being sustained upon audit, based on the technical merits of the tax position). Tax positions that meet the more likely than not threshold are measured at the largest amount of tax benefit that has a greater than fifty percent likelihood of being realized upon settlement. The Company recognizes accrued interest and penalties related to unrecognized tax benefits in the financial statements as a component of the benefit (provision) for income taxes.  At December 31, 2013 and 2012, the Company has no liability for unrecognized tax benefits.
	Our taxable loss differs from net income (loss) attributable to common stockholders for financial reporting purposes primarily due to differences in the timing of recognition of rental revenue, loss on dispositions, impairment losses and depreciation and amortization.  As a result of these differences, the tax basis of our net assets and liabilities exceeds the book value by approximately $207.6 million at December 31, 2013, and approximately $331.1 million at December 31, 2012.
	The following table reconciles our net income (loss) attributable to common stockholders to our taxable loss for the years ended December 31, 2013, 2012 and 2011 (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Net income (loss) attributable to common stockholders	$	15,552		$	(152,101	)	$	(181,450	)
	Depreciation and amortization	51,860			57,385			67,294
	Impairment losses	4,870			73,431			91,788
	GAAP rent adjustments	(14,330		)	(22,093		)	(40,753		)
	Loss on dispositions	(71,654		)	(31,538		)	(121,676		)
	Gain on troubled debt restructuring	(29,388		)	(35,757		)	(38,888		)
	Unconsolidated tax entities - primarily IPC (US), Inc.	(21,903		)	48,940			21,032
	Long term capital gain on exchange of stock for member interest in IPC (US), LLC	14,130			—			—
	Long term capital loss on investment allowed	(14,130		)	—			—
	Other	(1,341		)	(1,684		)	(997		)
	Taxable loss (1)	$	(66,334	)	$	(63,417	)	$	(203,650	)
	____________
	-1	Represents our projected taxable loss. As stated above, we elected for our subsidiary, IPC (US), Inc., to be taxed as a REIT beginning with the tax year ending December 31, 2008, and due to the conversion of IPC (US), Inc. into IPC (US), LLC, our final return for IPC (US), Inc. will be filed for the year ending December 31, 2013. As a result of this election, TIER REIT, Inc. and IPC (US), Inc. will file separate tax returns for a final year in 2013. Our taxable loss includes amounts related to IPC (US), Inc.’s taxable income only to the extent we receive a taxable dividend from IPC (US), Inc. The projected taxable gain for IPC (US), Inc. for the year ended December 31, 2013, prior to the deduction for dividends paid, is approximately $82.5 million; however, because the liquidating distributions from IPC (US), Inc. exceed this amount, there is no estimated taxable income. The estimated losses for IPC (US), Inc. for the years ended December 31, 2012 and 2011, were approximately $3.9 million and $8.8 million, respectively.
	The components of the benefit (provision) for income taxes from continuing operations for the years ended December 31, 2013, 2012 and 2011 are as follows (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Current:
	Federal	$	(2	)	$	—		$	(33	)
	State	(944		)	(692		)	273
	Total current	(946		)	(692		)	240
	Deferred:
	Federal	84			181			(42		)
	State	344			451			417
	Total deferred	428			632			375
	Total income tax benefit (provision) - continuing operations	$	(518	)	$	(60	)	$	615

Derivative_Instruments_and_Hed

Derivative Instruments and Hedging Activities	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivative Instruments and Hedging Activities	'
	Derivative Instruments and Hedging Activities
	We may be exposed to the risk associated with variability of interest rates that might impact our cash flows and the results of our operations.  Our objectives in using interest rate derivatives are to add stability to interest expense and to manage our exposure to interest rate movements.  To accomplish this objective, we have used interest rate caps and swaps as part of our interest rate risk management strategy.  Our interest rate caps and swaps involve the receipt of variable-rate amounts from counterparties in exchange for us making capped-rate or fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.  Our hedging strategy of entering into interest rate caps and swaps, therefore, is to eliminate or reduce, to the extent possible, the volatility of cash flows.
	We had interest rate swap and cap agreements that were terminated in 2013. As of December 31, 2013, we have no interest rate cap or swap agreements.
	The table below presents the fair value of our derivative financial instruments, included in “other liabilities” on our consolidated balance sheets, as of December 31, 2013 and 2012 (in thousands):
	Derivatives designated as hedging instruments:	For the Year Ended December 31,
		2013			2012
	Interest rate caps	$	—		$	—
	Interest rate swaps	—			(1,427		)
	Total derivatives	$	—		$	(1,427	)
	The tables below present the effect of the change in fair value of derivative financial instruments in our consolidated statements of operations and comprehensive income (loss) for the years ended December 31, 2013, 2012 and 2011 (in thousands):
	Derivatives in Cash Flow Hedging Relationship
		Gain (loss) recognized in OCI on derivative (effective portion)
		for the Year Ended December 31,
		2013			2012			2011
	Interest rate caps	$	251		$	34		$	(285	)
	Interest rate swaps	1,428			(806		)	(621		)
	Total	$	1,679		$	(772	)	$	(906	)
			Amount of loss reclassified from OCI into income (effective portion)
			for the Year Ended December 31,
	Location		2013			2012			2011
	Interest expense (1)		$	1,006		$	903		$	149
	Total		$	1,006		$	903		$	149
	____________
	-1	Increases in fair value as a result of accrued interest associated with our swap and cap transactions are recorded in accumulated OCI and subsequently reclassified into income. Such amounts are shown net in the statements of changes in equity and offset dollar for dollar.

Notes_Payable

Notes Payable	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Notes Payable	'
	Notes Payable
	Our notes payable was approximately $1.5 billion and $2.1 billion in principal amount at December 31, 2013 and 2012, respectively.  As of December 31, 2013, all of our outstanding debt, with the exception of our construction loan for Two BriarLake Plaza which has approximately $16.8 million outstanding, is fixed rate debt. At December 31, 2013, the stated annual interest rates on our outstanding notes payable ranged from 3.04% to 6.22%. We also had mezzanine financing on one property with a stated annual interest rate of 9.80%. The effective weighted average interest rate for all borrowings is approximately 5.69%.
	Our loan agreements generally require us to comply with certain reporting and financial covenants.  At December 31, 2013, we believe we were in compliance with the debt covenants under each of our loan agreements. Our debt has maturity dates that range from September 2014 to August 2021.
	The following table summarizes our notes payable as of December 31, 2013, (in thousands):
	Principal payments due in:
	2014	$	44,522
	2015	411,209
	2016	812,936
	2017	130,021
	2018	1,622
	Thereafter	90,119
	Unamortized discount	(62		)
	Total	$	1,490,367
	Credit Facility
	On December 20, 2013, through our operating partnership, Tier OP, we entered into an amended and restated secured credit agreement providing for total borrowings under a revolving line of credit of up to $260.0 million. Subject to lender approval, certain conditions, and payment of certain activation fees to the agent and lenders, this may be increased up to $500.0 million in the aggregate. The facility matures on June 20, 2017, and may be extended for an additional one-year term and an additional six-month term. The annual interest on the credit facility is equal to either, at our election, (1) the “base rate” (calculated as the greatest of (i) the agent’s “prime rate”; (ii) 0.5% above the Federal Funds Effective Rate; or (iii) LIBOR for an interest period of one month plus 1.0%) plus 1.35% or (2) LIBOR plus 2.35%. All amounts owed under the credit facility are guaranteed by us and certain subsidiaries of Tier OP. Draws under the credit facility are secured by a perfected first priority lien and security interest in a collateral pool initially consisting of six properties owned by certain of our subsidiaries. As of December 31, 2013, we had approximately $257.6 million of available borrowings under the facility with no borrowings outstanding.
	Prior to the amendment, the credit agreement provided for borrowings of up to $340.0 million, available as a $200.0 million term loan and $140.0 million as a revolving line of credit (subject to increase by up to $110.0 million in the aggregate upon lender approval and payment of certain activation fees to the agent and lenders) and was scheduled to mature in October 2014.  The borrowings were supported by additional collateral owned by certain of our subsidiaries.  The annual interest rate on the credit facility was equal to either, at our election, (1) the “base rate” (calculated as the greatest of (i) the agent’s “prime rate”; (ii) 0.5% above the Federal Funds Effective Rate; or (iii) LIBOR for an interest period of one month plus 1.0%) plus 2.0% or (2) LIBOR plus 3.0%.
	Troubled Debt Restructuring
	In 2013, we sold 600 & 619 Alexander Road and Riverview Tower. The proceeds were used to fully settle the related debt on each property at a discount. Pursuant to deeds-in-lieu of foreclosure, we transferred ownership of our One Edgewater Plaza, Tice Building, and Ashford Perimeter properties to the associated lenders. These transactions were each accounted for as a full settlement of debt.
	In 2012, pursuant to foreclosures, we transferred ownership of Minnesota Center and 17655 Waterview and our ownership interest in St. Louis Place to the associated lenders. These transaction were each accounted for as a full settlement of debt.
	In 2011, pursuant to foreclosures or deeds-in-lieu of foreclosure, we transferred ownership of Executive Park, Grandview II and Resurgens Plaza to the associated lenders.  These transactions were each accounted for as a full settlement of debt. We also sold 1300 Main which was held in receivership at the date of sale, and the proceeds were used to fully settle the related debt at a discount.
	For the years ended December 31, 2013, 2012 and 2011, the above transactions resulted in gain on troubled debt restructuring of approximately $36.7 million, $35.6 million, and $38.9 million, respectively, which was equal to approximately $0.12, $0.12, and $0.13 in earnings per common share, respectively, on both a basic and diluted income per share basis.  These totals include gains on troubled debt restructuring recorded in both continuing operations and discontinued operations.

Equity

Equity	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Equity	'
	Equity
	Limited Partnership Units
	At December 31, 2013, Tier OP had 432,586 units of limited partnership interest held by third parties.  These units of limited partnership interest are convertible into an equal number of shares of our common stock.
	Series A Convertible Preferred Stock
	On September 4, 2012, we issued 10,000 shares of the Series A Convertible Preferred Stock to Services Holdings. Management estimated the fair value of the shares to be approximately $2.7 million at the date of issuance.  The maximum redemption value of the Series A Convertible Preferred Stock at December 31, 2013, is not greater than the fair value of these shares estimated at the date of issuance. Therefore, no adjustment to the book value of these shares has been recorded subsequent to their issuance.
	Share Redemption Program
	Our board of directors had previously authorized a share redemption program to provide limited interim liquidity to stockholders.  In 2009, the board made a determination to suspend redemptions other than those submitted in respect of a stockholder’s death, disability or confinement to a long-term care facility (referred to herein as “exceptional redemptions”).  The board set funding limits for exceptional redemptions considered in 2011 and 2012, and in December 2012, our board of directors made a determination to suspend all redemptions until further notice. Our board maintains its right to reinstate the share redemption program, subject to the limits set forth in the program, if it deems it to be in the best interest of the Company.  Our board also reserves the right in its sole discretion at any time and from time to time to (1) reject any request for redemption; (2) change the purchase price for redemptions; (3) limit the funds to be used for redemptions or otherwise change the limitations on redemption; or (4) amend, suspend (in whole or in part) or terminate the program. No shares were redeemed in the year ended December 31, 2013. For the year ended December 31, 2012, we redeemed approximately 879,877 shares for approximately $4.1 million.
	Stock Plans
	Our 2005 Incentive Award Plan allows for equity-based incentive awards to be granted to our Employees and Key Personnel (as defined in the plan).  As of December 31, 2013, we had outstanding options held by our independent directors to purchase 75,000 shares of our common stock at a weighted average exercise price of $6.69 per share. These options have a maximum term of ten years and were exercisable one year after the date of grant.  The options were anti-dilutive to earnings per share for the years ended December 31, 2013, 2012 and 2011.
	On February 14, 2013, 429,560 shares of restricted stock were granted to employees. Restrictions on these shares lapse in 25% increments annually over the four-year period following the grant date. Compensation cost is measured at the grant date based on the estimated fair value of the award ($4.01 per share) and will be recognized as expense over the service period based on the tiered lapse schedule and estimated forfeiture rates. As of December 31, 2013, 6,235 of these shares have been forfeited. The restricted stock was anti-dilutive to earnings per share for each period presented.
	On January 30, 2014, 450,065 shares of restricted stock were granted to employees. Restrictions on these shares lapse in 25% increments annually over the four-year period following the grant date. Compensation cost is measured at the grant date based on the estimated fair value of the award ($4.20 per share) and will be recognized as expense over the service period based on the tiered lapse schedule and estimated forfeiture rates.
	On June 21, 2013, our independent directors were granted 37,407 restricted stock units. These units vest on July 22, 2014. Subsequent to the vesting, the restricted stock units will be converted to an equivalent number of shares of common stock upon the earlier to occur of the following events or dates: (i) separation from service for any reason other than cause; (ii) a change in control of the Company; (iii) death; or (iv) specific dates chosen by the independent directors, which for G. Ronald Witten and Steven W. Partridge is June 21, 2015, upon which 50% of the restricted stock units will be converted, and June 21, 2016, upon which the remaining 50% will be converted, provided, however, that following the issuance on June 21, 2015, the remaining 50% will be converted immediately upon the occurrence of any of the foregoing events in (i), (ii) or (iii) prior to June 21, 2016; and for Charles G. Dannis is June 21, 2019. Expense is measured at the grant date based on the estimated fair value of the award ($4.01 per unit) and will be recognized over the vesting period. The restricted units were anti-dilutive to earnings per share for each period presented.
	Distributions
	In December 2012, our board of directors approved the suspension of common stock distribution payments. As noted in previous filings, distributions are authorized at the discretion of our board of directors based on its analysis of numerous factors, including but not limited to our forthcoming cash needs, and there is no assurance we will pay distributions in the future or at any particular rate. In 2012, the declared distribution rate was equal to a monthly amount of $0.0083 per share of common stock, which is equivalent to an annual distribution rate of 1.0% based on a purchase price of $10.00 per share and 2.4% based on the November 1, 2013, estimated valuation of $4.20 per share.
	No distributions for common stock were declared in the year ended December 31, 2013. Distributions of approximately $5.3 million were made in 2013 to third-party members related to the sale of certain non wholly-owned real estate properties.
	The following table shows our distributions declared on our stock and noncontrolling interests for each of the quarters during the year ended December 31, 2012 (in thousands):
				Common Stockholders				Preferred		Noncontrolling
		Total		Cash		DRP		Stockholders		Interests
	2012
	1st Quarter	$	7,450	$	4,171	$	3,268	$	—	$	11
	2nd Quarter	7,830		4,177		3,275		—		378
	3rd Quarter	7,476		4,204		3,261		—		11
	4th Quarter	4,991		2,820		2,161		—		10
	Total	$	27,747	$	15,372	$	11,965	$	—	$	410

Related_Party_Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Related Party Transactions	'
	Related Party Transactions
	On August 31, 2012, we became self-managed. As a result, our employees perform certain functions, including asset management, previously provided to us by BHT Advisors, LLC (“BHT Advisors”). We no longer pay asset management fees, acquisition fees or debt financing fees to BHT Advisors (except for acquisition and debt financing fees related to the previously committed development of Two BriarLake Plaza). Effective December 2012 we terminated services from BHT Advisors for information management, risk management, marketing, and cash management services. In December 2013 we provided notice to BHT Advisors that we would terminate their internal audit services effective March 2014, as well. No exit costs were paid to BHT Advisors in connection with the termination of these services. However, we continue to purchase certain services from BHT Advisors such as human resources, shareholder services and information technology. HPT Management Services, LLC (“HPT Management”) provides property management services for our properties. Current or former board members, Messrs. Robert M. Behringer, Robert S. Aisner, and M. Jason Mattox, serve as officers and are partial owners of the ultimate parent entity of BHT Advisors and HPT Management.
	On August 31, 2012, we paid BHT Advisors approximately $1.5 million in consideration for certain assets located at our corporate offices and used in our business, such as IT equipment and office furniture; for the license under the license agreement regarding our use of the “Behringer Harvard” name and logo; and for the other agreements, covenants and obligations of Services Holdings and its affiliates in connection with the transaction. Approximately $1.4 million of this amount was reflected in our other intangible assets and approximately $0.1 million was expensed. In June 2013, we changed our name to TIER REIT, Inc. and no longer use the Behringer Harvard name or logo, and the intangible asset was fully amortized.
	The following is a summary of the related party fees and costs we incurred with these entities during the years ended December 31, 2013, 2012 and 2011 (in thousands):
		Year Ended December 31,
		2013		2012		2011
	BHT Advisors, acquisition fees (1)	$	934	$	106	$	96
	BHT Advisors, debt financing fees	—		660		6,101
	BHT Advisors, asset management fee	—		10,484		20,081
	BHT Advisors, other fees and reimbursement for services provided	2,426		3,766		3,822
	HPT Management, property and construction management fees	13,191		13,931		14,263
	HPT Management, reimbursement of costs and expenses	21,022		23,537		25,165
	Total	$	37,573	$	52,484	$	69,528
	Expensed	$	35,356	$	50,668	$	61,974
	Capitalized to deferred financing fees	—		660		6,101
	Capitalized to real estate under development	934		106		—
	Capitalized to buildings and improvements, net	1,283		1,050		1,453
	Total	$	37,573	$	52,484	$	69,528
	______________
	(1) Acquisition fees in 2013 and 2012 relate to the development of Two BriarLake Plaza.
	At December 31, 2013 and 2012, we had payables to related parties of approximately $2.0 million and $1.4 million, respectively, consisting primarily of expense reimbursements payable to BHT Advisors and property management fees payable to HPT Management.

Commitments_and_Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	As of December 31, 2013, we had commitments of approximately $68.1 million for future tenant improvements, leasing commissions, and completing renovations at a recently disposed property.
	Effective as of September 1, 2012, we entered into Employment Agreements (collectively, the “Employment Agreements”) with each of the following executive officers: Scott W. Fordham, our President and Chief Financial Officer; William J. Reister, our Chief Investment Officer and Executive Vice President; Telisa Webb Schelin, our Senior Vice President - Legal, General Counsel and Secretary; Thomas P. Simon, our Senior Vice President - Finance and Treasurer; and James E. Sharp, our Chief Accounting Officer. The term of these Employment Agreements commenced on September 1, 2012, and ends on December 31, 2015, provided that the term will automatically continue for an additional one-year period unless either party provides 60 days written notice of non-renewal prior to the expiration of the initial term. The Employment Agreements provide for acceleration of vesting of compensation received under the long-term incentive plan and lump sum payments upon termination of employment without cause. In the event the Company terminated all of these Employment Agreements at December 31, 2013, approximately $5.7 million in compensation expense would be recognized.
	We are subject, from time to time, to various legal proceedings and claims that arise in the ordinary course of business. While the resolution of these matters cannot be predicted with certainty, management believes, based on currently available information, that the final outcome of such matters, individually or in the aggregate, will not have a material adverse effect on our results of operations, financial condition, or cash flows.
	On each of September 17 and November 28, 2012, lawsuits seeking class action status were filed in the United States District Court for the Northern District of Texas (Dallas Division).  On January 4, 2013, these two lawsuits were consolidated by the court. The plaintiffs purport to file the suit individually and on behalf of all others similarly situated, referred to herein as “Plaintiffs.”
	Plaintiffs named us, Behringer Harvard Holdings, LLC, our previous sponsor, as well as the directors at the time of the allegations: Robert M. Behringer, Robert S. Aisner, G. Ronald Witten, Charles G. Dannis and Steven W. Partridge (individually a “Director” and collectively the “Directors”) and Scott W. Fordham, the Company’s President and Chief Financial Officer, and James E. Sharp, the Company’s Chief Accounting Officer (collectively, the “Officers”), as defendants. In the amended complaint filed on February 1, 2013, the Officers were dismissed from the consolidated suit.
	Plaintiffs allege that the Directors each individually breached various fiduciary duties purportedly owed to Plaintiffs.  Plaintiffs allege that the Directors violated Sections 14(a) and (e) and Rules 14a-9 and 14e-2(b) of and under federal securities law in connection with (1) the recommendations made to the shareholders in response to certain tender offers made by CMG Partners, LLC and its affiliates and (2) the solicitation of proxies for our annual meeting of shareholders held on June 24, 2011. Plaintiffs further allege that the defendants were unjustly enriched by the purported failures to provide complete and accurate disclosure regarding, among other things, the value of our common stock and the source of funds used to pay distributions.
	Plaintiffs seek the following relief: (1) that the court declare the proxy to be materially false and misleading; (2) that the filings on Schedule 14D-9 were false and misleading; (3) that the defendants’ conduct be declared to be in violation of law; (4) that the authorization secured pursuant to the proxy be found null and void and that we be required to re-solicit a shareholder vote pursuant to court supervision and court approved proxy materials; (5) that the defendants have violated their fiduciary duties to the shareholders who purchased our shares from February 19, 2003, to the present; (6) that the defendants be required to account to Plaintiffs for damages suffered by Plaintiffs; and (7) that Plaintiffs be awarded costs of the action including reasonable allowance for attorneys and experts fees.
	Neither we nor any of the other defendants believe the consolidated suit has merit and each intend to defend it vigorously.

Supplemental_Cash_Flow_Informa

Supplemental Cash Flow Information	12 Months Ended
	Dec. 31, 2013
Supplemental Cash Flow Elements [Abstract]	'
Supplemental Cash Flow Information	'
	Supplemental Cash Flow Information
	Supplemental cash flow information is summarized below for the years ended December 31, 2013, 2012 and 2011 (in thousands):
		2013		2012		2011
	Interest paid, net of amounts capitalized	$	106,946	$	118,530	$	143,466
	Income taxes paid	$	1,440	$	1,232	$	2,311
	Non-cash investing activities:
	Property and equipment additions in accounts payable and accrued liabilities	$	25,666	$	25,751	$	27,354
	Transfer of real estate and lease intangibles through cancellation of debt	$	52,361	$	32,700	$	65,870
	Transfer of investment through cancellation of debt	$	—	$	4,259	$	—
	Sale of real estate and lease intangibles to unconsolidated joint venture	60,660		—		—
	Non-cash financing activities:
	Common stock issued in distribution reinvestment plan	$	—	$	13,066	$	13,297
	Mortgage notes assumed by the Company	$	—	$	—	$	2,091
	Accrual for distributions declared	$	—	$	—	$	2,481
	Assumption of debt by unconsolidated joint venture	$	82,291	$	—	$	—
	Mortgage notes assumed by purchaser	$	24,250	$	73,119	$	28,754
	Cancellation of debt through transfer of real estate	$	57,934	$	59,251	$	103,737
	Cancellation of debt through discounted payoff	$	9,530	$	—	$	—
	Issuance of Series A Convertible Preferred Stock	$	—	$	2,700	$	—
	Financing costs in accrued liabilities	$	65	$	—	$	—

Discontinued_Operations_and_Re

Discontinued Operations and Real Estate Held for Sale	12 Months Ended
	Dec. 31, 2013
Discontinued Operations and Disposal Groups [Abstract]	'
Discontinued Operations and Real Estate Held for Sale	'
	Discontinued Operations and Real Estate Held for Sale
	During 2013, 2012, and 2011, we disposed of eleven, five, and nine consolidated properties, respectively. The results of operations for each of these properties have been reclassified as discontinued operations in the accompanying consolidated statements of operations and comprehensive income (loss) for the years ended December 31, 2013, 2012 and 2011, as summarized in the following table (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Rental revenue	$	62,988		$	103,105		$	128,229
	Expenses
	Property operating expenses	18,125			33,178			43,291
	Interest expense	6,994			18,979			43,348
	Real estate taxes	10,341			14,909			20,436
	Property and asset management fees	1,657			5,384			8,907
	Asset impairment losses	4,879			13,514			65,710
	Depreciation and amortization	26,265			41,939			56,032
	Total expenses	68,261			127,903			237,724
	Provision for income taxes	(1		)	(7		)	(1		)
	Loss on early extinguishment of debt	(1,416		)	—			—
	Gain on troubled debt restructuring	36,726			35,421			37,903
	Interest and other income (expense)	(1		)	224			2,283
	Gain (loss) from discontinued operations	$	30,035		$	10,840		$	(69,310	)
	We had no assets held for sale as of December 31, 2013. As of December 31, 2012,  our 600 & 619 Alexander Road property was held for sale and a sale was completed on February 15, 2013.
	The major classes of assets and obligations associated with real estate held for sale are as follows (in thousands):
			31-Dec-12
	Land		$	1,384
	Buildings and improvements, net		6,592
	Accounts receivable and other assets, net		1,884
	Lease intangibles, net		858
	Assets associated with real estate held for sale		$	10,718
	Notes payable		$	16,400
	Other liabilities		1,983
	Obligations associated with real estate held for sale		$	18,383

Quarterly_Results_Unaudited

Quarterly Results (Unaudited)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Quarterly Results (Unaudited)	'
	Quarterly Results (Unaudited)
	Presented below is a summary of the unaudited quarterly financial information for the years ended December 31, 2013 and 2012 (in thousands, except per share data):
	2013 Quarters Ended	March 31			June 30			September 30			December 31
	Rental revenue	$	86,336		$	87,196		$	86,192		$	84,830
	Loss from continuing operations before gain on sale or transfer of assets	$	(22,624	)	$	(21,887	)	$	(24,669	)	$	(1,410	)
	Income from discontinued operations	10,500			1,719			31,817			26,435
	Gain on sale or transfer of assets	16,102			—			—			—
	Net income (loss)	3,978			(20,168		)	7,148			25,025
	Noncontrolling interests in continuing operations	11			30			36			3
	Noncontrolling interests in discontinued operations	(23		)	1			(465		)	(24		)
	Net income (loss) attributable to common stockholders	$	3,966		$	(20,137	)	$	6,719		$	25,004
	Basic and diluted weighted average common shares outstanding	299,192			299,192			299,192			299,192
	Basic and diluted income (loss) per common share	$	0.01		$	(0.07	)	$	0.02		$	0.08
	2012 Quarters Ended	March 31			June 30			September 30			December 31
	Rental revenue	$	86,959		$	87,865		$	89,060		$	88,645
	Loss from continuing operations before gain on sale or transfer of assets	$	(31,401	)	$	(43,378	)	$	(24,845	)	$	(91,790	)
	Income (loss) from discontinued operations	3,199			9,240			(6,451		)	24,982
	Gain on sale or transfer of assets	362			—			—			7,721
	Net loss	(27,840		)	(34,138		)	(31,296		)	(59,087		)
	Noncontrolling interests in continuing operations	46			63			37			122
	Noncontrolling interests in discontinued operations	(5		)	(29		)	32			(6		)
	Net loss attributable to common stockholders	$	(27,799	)	$	(34,104	)	$	(31,227	)	$	(58,971	)
	Basic and diluted weighted average common shares outstanding	297,646			298,113			298,618			299,102
	Basic and diluted loss per common share	$	(0.09	)	$	(0.11	)	$	(0.10	)	$	(0.20	)

Schedule_II

Schedule II	12 Months Ended
	Dec. 31, 2013
Valuation and Qualifying Accounts [Abstract]	'
Valuation and Qualifying Accounts	'
	TIER REIT, Inc.
	Valuation and Qualifying Accounts
	Schedule II
	December 31, 2013
	(in thousands)
	Allowance for Doubtful Accounts	Balance at		Charged to		Charged to		Write-Offs, Net			Balance at End
		Beginning		Costs and		Other		of Recoveries			of Year
		of Year		Expenses		Accounts
	Year to date December 31, 2013	$	1,263	$	418	$	—	$	(392	)	$	1,289
	Year to date December 31, 2012	$	1,459	$	467	$	—	$	(663	)	$	1,263
	Year to date December 31, 2011	$	3,198	$	847	$	—	$	(2,586	)	$	1,459

Schedule_III

Schedule III	12 Months Ended
	Dec. 31, 2013
SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Abstract]	'
Real Estate and Accumulated Depreciation	'
	TIER REIT, Inc.
	Real Estate and Accumulated Depreciation
	Schedule III
	December 31, 2013
	(in thousands)
																		Gross amount
											Initial cost				Costs capitalized			at which
													Building and		subsequent			carried at		Accumulated		Year of	Date
	Property Name		Location		Encumbrances						Land		Improvements		to acquisition (1)			close of period (2)		depreciation		construction	acquired
	Lawson Commons		St. Paul, MN		54,734						2,021		75,881		3,908			81,810		26,514		1999	Jun-05
	Buena Vista Plaza		Burbank, CA		20,976						3,806		28,368		435			32,609		9,613		1991	Jul-05
	1325 G Street		Washington, D.C.		100,000						71,313		60,681		7,154			139,148		22,019		1969	Nov-05
	Woodcrest Corporate Center		Cherry Hill, NJ		48,268						5,927		49,977		5,010			60,914		18,130		1960	Jan-06
	Burnett Plaza		Ft. Worth, TX		103,995						6,239		157,171		19,062			182,472		53,401		1983	Feb-06
	222 South Riverside Plaza		Chicago, IL		196,247						29,787		190,111		25,225			245,123		65,741		1971	Jun-06
	The Terrace Office Park		Austin, TX		127,440						17,330		124,551		10,804			152,685		39,900		1997-2002	Jun-06
	Bank of America Plaza		Charlotte, NC		150,000						26,656		185,215		20,031			231,902		55,915		1974	Oct-06
	Three Parkway		Philadelphia, PA		65,292						7,905		69,033		10,105			87,043		22,275		1970	Oct-06
	Fifth Third Center-Cleveland		Cleveland, OH		48,000						1,424		52,075		4,829			58,328		16,109		1991	Nov-06
	One & Two Eldridge Place		Houston, TX		73,098						6,605		89,506		15,855			111,966		29,120		1984/86	Dec-06
	250 W. Pratt		Baltimore, MD		33,009						6,700		39,861		9,649			56,210		15,810		1986	12/2004-12/2006
	Centreport Office Center		Ft. Worth, TX		—			(5	)		3,175		12,917		(6,405		)	9,687		2,368		1999	Jun-07
	FOUR40		Chicago, IL		—			(5	)		23,285		265,099		(96,812		)	191,572		14,670		1984	Nov-07
	111 Woodcrest		Cherry Hill, NJ		—			(5	)		1,000		5,417		(930		)	5,487		1,196		1964	Nov-07
	1650 Arch Street		Philadelphia, PA		—			(5	)		24,000		60,825		(24,438		)	60,387		11,790		1974	12/2007-03/2011
	United Plaza		Philadelphia, PA		59,898						23,736		90,001		10,093			123,830		23,865		1975	Dec-07
	One Oxmoor Place		Louisville, KY		92,535			(3	)		2,851		17,614		1,134			21,599		4,837		1989	Dec-07
	Hurstbourne Place		Louisville, KY		—			(3	)		4,587		30,203		(13,574		)	21,216		5,561		1982	Dec-07
	Hurstbourne Park		Louisville, KY		—			(3	)		2,297		12,728		(3,277		)	11,748		2,862		1971	Dec-07
	Hurstbourne Plaza (4)		Louisville, KY		—			(3	)		4,000		10,054		146			14,200		9,831		1971	Dec-07
	Forum Office Park		Louisville, KY		—			(3	)		6,811		32,548		8,478			47,837		9,005		1984	Dec-07
	Lakeview		Louisville, KY		—			(3	)		1,468		8,574		(3,697		)	6,345		661		1989	Dec-07
	Steeplechase Place		Louisville, KY		—			(3	)		1,766		7,424		1,322			10,512		1,946		1989	Dec-07
	Hunnington		Louisville, KY		—			(3	)		978		5,507		(667		)	5,818		1,234		1986	Dec-07
	City Hall Plaza		Manchester, NH		—			(3	)		2,516		27,509		(16,588		)	13,437		1,038		1982	Dec-07
	One & Two Chestnut Place		Worcester, MA		—			(3	)		2,903		15,715		(974		)	17,644		3,581		1990	Dec-07
	Fifth Third Center-Columbus		Columbus, OH		50,348						3,500		54,242		1,885			59,627		14,028		1928	Dec-07
	5104 Eisenhower Boulevard		Tampa, FL		—			(5	)		2,602		25,054		2,851			30,507		7,322		1998	Dec-07
	Plaza at MetroCenter		Nashville, TN		23,969						3,341		35,333		(7,102		)	31,572		3,513		1985	Dec-07
	Loop Central		Houston, TX		43,314						11,653		86,587		10,872			109,112		26,457		1980-1982	Dec-07
	801 Thompson		Rockville, MD		—						3,200		10,578		108			13,886		2,583		1963	Dec-07
	500 E. Pratt		Baltimore, MD		58,800						—		66,390		1,712			68,102		16,700		2004	Dec-07
	One BriarLake Plaza		Houston, TX		97,229						9,602		119,660		9,695			138,957		27,759		2000	Sep-08
	Two BriarLake Plaza		Houston, TX		16,786						2,446		48,859		—			51,305		—		-6	Dec-09
	Colorado Building		Washington, D.C.		26,491						13,328		28,109		2,102			43,539		7,582		1903	08/2004-12/2008
	Three Eldridge Place		Houston ,TX		—			(5	)		3,090		62,181		10,753			76,024		11,649		2009	12/2006-11/2009
	unamortized discount				(62		)				—		—		—			—		—
	Totals				$	1,490,367					$	343,848	$	2,261,558	$	18,754		$	2,624,160	$	586,585
	____________
	Generally, each of our properties has a depreciable life of 25 years.
	(1)  Includes adjustments to basis, such as impairment losses.
	(2)  The aggregate cost for federal income tax purposes is approximately $2.9 billion.
	(3)  One Oxmoor Place, Hurstborne Place, Hurstborne Park, Hurstborne Plaza, Forum Office Park, Lakeview, Steeplechase Place, Hunnington, City Hall Plaza, and One & Two Chestnut Place are each held as collateral for this note payable.
	(4)  Hurstborne Plaza is a retail shopping center.  All of our other properties are office buildings.
	(5) FOUR40, 1650 Arch Street, 5104 Eisenhower Blvd., Three Eldridge Place, 111 Woodcrest, and Centreport Office Center are each held as collateral for our credit facility which has no borrowings outstanding at December 31, 2013.
	(6) Construction commenced in 2012 and is expected to be completed in 2014.
	A summary of activity for real estate and accumulated depreciation for the years ended December 31, 2013, 2012 and 2011, is as follows (in thousands):
		Year Ended December 31, 2013				Year Ended December 31, 2012				Year Ended December 31, 2011
	Real Estate:
	Balance at beginning of year	$	3,222,358			$	3,597,339			$	3,894,478
	Acquisitions/improvements	98,519				76,304				68,699
	Assets disposed/written-off	(696,717		)		(451,285		)		(365,838		)
	Balance at end of the year	$	2,624,160			$	3,222,358			$	3,597,339
Accumulated depreciation:
Balance at beginning of year	$	593,389			$	617,402			$	526,197
Depreciation expense	128,599				141,046				150,338
Assets disposed/written-off	(135,403		)		(165,059		)		(59,133		)
Balance at end of the year	$	586,585			$	593,389			$	617,402
*****

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Use of Estimates in the Preparation of Financial Statements	'
	Use of Estimates in the Preparation of Financial Statements
	The preparation of financial statements in conformity with accounting principals generally accepted in the United States of America (“GAAP”) requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  These estimates include such items as the purchase price allocation for real estate acquisitions, impairment of assets, timing of asset dispositions, duration of lease terms, depreciation and amortization and allowance for doubtful accounts.  Actual results could differ materially from those estimates.
Principles of Consolidation and Basis of Presentation	'
	Principles of Consolidation and Basis of Presentation
	Our consolidated financial statements include our accounts, the accounts of variable interest entities (“VIEs”), if any, in which we are the primary beneficiary, and the accounts of other subsidiaries over which we have control.  All inter-company transactions, balances and profits have been eliminated in consolidation.  Interests in entities acquired are evaluated based on applicable GAAP which requires the consolidation of VIEs in which we are deemed to be the primary beneficiary.  If the interest is in an entity that is determined not to be a VIE, then the entity is evaluated for consolidation based on legal form, economic substance, and the extent to which we have control and/or substantive participating rights under the respective ownership agreement. We had no VIEs as of December 31, 2013, 2012 or 2011.
Real Estate	'
	Real Estate
	Upon the acquisition of real estate properties, we recognize the assets acquired, the liabilities assumed, and any noncontrolling interest as of the acquisition date, measured at their fair values.  The acquisition date is the date on which we obtain control of the real estate property.  The assets acquired and liabilities assumed may consist of land, inclusive of associated rights, buildings, assumed debt, identified intangible assets and liabilities and asset retirement obligations.  Identified intangible assets generally consist of above-market leases, in-place leases, in-place tenant improvements, in-place leasing commissions and tenant relationships.  Identified intangible liabilities generally consist of below-market leases.  Goodwill is recognized as of the acquisition date and measured as the aggregate fair value of the consideration transferred and any noncontrolling interests in the acquiree over the fair value of the identifiable net assets acquired.  Likewise, a bargain purchase gain is recognized in current earnings when the aggregate fair value of the consideration transferred and any noncontrolling interests in the acquiree is less than the fair value of the identifiable net assets acquired.  Acquisition-related costs are expensed in the period incurred.  Initial valuations are subject to change until our information is finalized, which is no later than twelve months from the acquisition date.
	The fair value of the tangible assets acquired, consisting of land and buildings, is determined by valuing the property as if it were vacant, and the “as-if-vacant” value is then allocated to land and buildings.  Land values are derived from appraisals, and building values are calculated as replacement cost less depreciation or management’s estimates of the fair value of these assets using discounted cash flow analyses or similar methods believed to be used by market participants.  The value of buildings is depreciated over the estimated useful life of 25 years using the straight-line method.
	We determine the fair value of assumed debt by calculating the net present value of the scheduled mortgage payments using interest rates for debt with similar terms and remaining maturities that management believes we could obtain at the date of the debt assumption.  Any difference between the fair value and stated value of the assumed debt is recorded as a discount or premium and amortized over the remaining life of the loan using the effective interest method.
	We determine the value of above-market and below-market leases for acquired properties based on the present value (using an interest rate that reflects the risks associated with the leases acquired) of the difference between (1) the contractual amounts to be paid pursuant to the in-place leases and (2) management’s estimate of current market lease rates for the corresponding in-place leases, measured over a period equal to (a) the remaining non-cancelable lease term for above-market leases, or (b) the remaining non-cancelable lease term plus any below-market fixed rate renewal options that, based on a qualitative assessment of several factors, including the financial condition of the lessee, the business conditions in the industry in which the lessee operates, the economic conditions in the area in which the property is located, and the ability of the lessee to sublease the property during the renewal term, are reasonably assured to be exercised by the lessee for below-market leases.  We record the fair value of above-market and below-market leases as intangible assets or intangible liabilities, respectively, and amortize them as an adjustment to rental income over the determined lease term.
	The total value of identified real estate intangible assets acquired is further allocated to in-place leases, in-place tenant improvements, in-place leasing commissions and tenant relationships based on our evaluation of the specific characteristics of each tenant’s lease and our overall relationship with that respective tenant.  The aggregate value for tenant improvements and leasing commissions is based on estimates of these costs incurred at inception of the acquired leases, amortized through the date of acquisition.  The aggregate value of in-place leases acquired and tenant relationships is determined by applying a fair value model.  The estimates of fair value of in-place leases include an estimate of carrying costs during the expected lease-up periods for the respective spaces considering current market conditions.  In estimating the carrying costs that would have otherwise been incurred had the leases not been in place, we include such items as real estate taxes, insurance and other operating expenses as well as lost rental revenue during the expected lease-up period based on current market conditions.  The estimates of the fair value of tenant relationships also include costs to execute similar leases including leasing commissions, legal fees and tenant improvements as well as an estimate of the likelihood of renewal as determined by management on a tenant-by-tenant basis. We amortize the value of in-place leases, in-place tenant improvements and in-place leasing commissions to expense over the initial term of the respective leases.  The tenant relationship values are amortized to expense over the initial term and any anticipated renewal periods, but in no event does the amortization period for intangible assets or liabilities exceed the remaining depreciable life of the building.  Should a tenant terminate its lease, the unamortized portion of the acquired intangibles related to that tenant would be charged to expense.
	The estimated remaining useful lives for acquired lease intangibles range from an ending date of January 2014 to an ending date of November 2025.  Anticipated amortization associated with the acquired lease intangibles for each of the next five years is as follows (in thousands):
	2014	$	13,428
	2015	$	9,324
	2016	$	6,370
	2017	$	3,824
	2018	$	3,033
	As of December 31, 2013 and 2012, accumulated depreciation and amortization related to our consolidated real estate properties and related lease intangibles were as follows (in thousands):
							Lease Intangibles
							Assets						Liabilities
			Buildings and Improvements				Other Lease Intangibles			Acquired Above-Market Leases			Acquired Below-Market Leases
	as of December 31, 2013
	Cost		$	2,255,384			$	305,233		$	19,264		$	(76,750	)
	Less: accumulated depreciation and amortization		(586,585		)		(177,088		)	(13,045		)	52,180
	Net		$	1,668,799			$	128,145		$	6,219		$	(24,570	)
							Lease Intangibles
							Assets						Liabilities
			Buildings and Improvements				Other Lease Intangibles			Acquired Above-Market Leases			Acquired Below-Market Leases
	as of December 31, 2012
	Cost		$	2,823,672			$	420,399		$	27,539		$	(124,060	)
	Less: accumulated depreciation and amortization		(593,389		)		(224,705		)	(17,646		)	72,842
	Net		$	2,230,283			$	195,694		$	9,893		$	(51,218	)
Real Estate Development	'
	Real Estate Development
	We capitalize project costs related to the development and construction of real estate (including interest and related loan fees, property taxes, insurance, and other direct costs associated with the development) as a cost of the development. Indirect costs not clearly related to development and construction are expensed as incurred. Capitalization begins when we determine that the development is probable and significant development activities are underway. We cease capitalization when the development is completed and ready for its intended use, or if the intended use changes such that capitalization is no longer appropriate.
Impairment of Real Estate Related Assets	'
	Impairment of Real Estate Related Assets
	For our consolidated real estate assets, we monitor events and changes in circumstances indicating that the carrying amounts of the real estate assets may not be recoverable.  When such events or changes in circumstances are present, we assess potential impairment by comparing estimated future undiscounted cash flows expected to be generated over the life of the asset including its eventual disposition, to the carrying amount of the asset.  In the event that the carrying amount exceeds the estimated future undiscounted cash flows and also exceeds the fair value of the asset, we recognize an impairment loss to adjust the carrying amount of the asset to its estimated fair value. Our process to estimate the fair value of an asset involves using third-party broker valuation estimates, bona fide purchase offers or the expected sales price of an executed sales agreement, which would be considered Level 1 or Level 2 assumptions within the fair value hierarchy. To the extent that this type of third-party information is unavailable, we estimate projected cash flows and a risk-adjusted rate of return that we believe would be used by a third party market participant in estimating the fair value of an asset. This is considered a Level 3 assumption within the fair value hierarchy. These projected cash flows are prepared internally by the Company’s asset management professionals and are updated quarterly to reflect in place and projected leasing activity, market revenue and expense growth rates, market capitalization rates, discount rates, and changes in economic and other relevant conditions. The Company’s Chief Financial Officer, Chief Investment Officer and Chief Accounting Officer review these projected cash flows to assure that the valuation is prepared using reasonable inputs and assumptions which are consistent with market data or with assumptions that would be used by a third party market participant and assume the highest and best use of the real estate investment. For the years ended December 31, 2013, 2012 and 2011, we recorded non-cash impairment charges of approximately $4.9 million, $98.1 million and $92.8 million, respectively, related to the impairment of consolidated real estate assets, including discontinued operations.  The impairment losses recorded were primarily related to assets assessed for impairment due to changes in management’s estimates of the intended hold period for certain of our properties and the sale or held for sale classification of certain properties.
	For our unconsolidated real estate assets, at each reporting date we compare the estimated fair value of our investment to the carrying amount.  An impairment charge is recorded to the extent the fair value of our investment is less than the carrying amount and the decline in value is determined to be other than a temporary decline.  We had no impairment charges related to our investments in unconsolidated entities for the years ended December 31, 2013 and 2012. For the year ended December 31, 2011, we recorded non-cash impairment charges of approximately $0.3 million related to the impairment of our investments in unconsolidated entities.
	In evaluating our investments for impairment, management makes several estimates and assumptions, including, but not limited to, the projected date of disposition and sales price for each property, the estimated future cash flows of each property during our estimated ownership period, and for unconsolidated investments, the estimated future distributions from the investment.  A change in these estimates and assumptions could result in understating or overstating the carrying amount of our investments which could be material to our financial statements.
	We undergo continuous evaluations of property level performance, credit market conditions and financing options.  If our assumptions regarding the cash flows expected to result from the use and eventual disposition of our properties decrease or our expected hold periods decrease, we may incur future impairment charges on our real estate related assets.  In addition, we may incur impairment charges on assets classified as held for sale in the future if the carrying amount of the asset upon classification as held for sale exceeds the estimated fair value, less costs to sell.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	We consider investments in highly-liquid money market funds or investments with original maturities of three months or less to be cash equivalents.
Restricted Cash	'
	Restricted Cash
	Restricted cash includes restricted money market accounts, as required by our lenders or by leases, for anticipated tenant improvements, property taxes and insurance and certain tenant security deposits for our consolidated properties, as well as cash committed as part of a sale agreement for renovations at a recently disposed property.
Accounts Receivable, net	'
	Accounts Receivable, net
	The following is a summary of our accounts receivable as of December 31, 2013 and 2012 (in thousands):
			December 31, 2013				31-Dec-12
	Straight-line rental revenue receivable		$	88,370			$	102,789
	Tenant receivables		9,389				9,374
	Non-tenant receivables		714				1,050
	Allowance for doubtful accounts		(1,289		)		(1,263		)
	Total		$	97,184			$	111,950
Prepaid Expenses and Other Assets	'
	Prepaid Expenses and Other Assets
	Prepaid expenses and other assets include prepaid insurance, prepaid real estate taxes, utility and other deposits of the properties we consolidate, as well as our deferred tax assets and prepaid directors’ and officers’ insurance.
Investments in Unconsolidated Entities	'
	Investments in Unconsolidated Entities
	Investments in unconsolidated entities at December 31, 2013, consist of our noncontrolling interests in the Wanamaker Building and Paces West properties, in addition to our remaining investment in the entity that sold the 200 South Wacker property in December 2013.
	We account for these investments using the equity method of accounting in accordance with GAAP.  The equity method of accounting requires these investments to be initially recorded at cost and subsequently increased (decreased) for our share of net income (loss), including eliminations for our share of inter-company transactions, and increased (decreased) for contributions (distributions).  We use the equity method of accounting because the shared decision-making involved in these investments creates an opportunity for us to have some influence on the operating and financial decisions of these investments and thereby creates some responsibility by us for a return on our investment.  While we own a 60% majority of the Wanamaker Building, major decisions require at least a vote of 70% of the ownership group; therefore, this investment is presented using the equity method of accounting.
Deferred Financing Fees, net	'
	Deferred Financing Fees, net
	Deferred financing fees are recorded at cost and are amortized to interest expense using a straight-line method that approximates the effective interest method over the anticipated life of the related debt. The following is a summary of our deferred financing fees as of December 31, 2013 and 2012 (in thousands):
		December 31, 2013				December 31,
						2012
	Cost	$	26,044			$	36,101
	Less: accumulated amortization	(16,066		)		(19,850		)
	Net	$	9,978			$	16,251
Other Intangible Assets	'
	Other Intangible Assets
	Other intangible assets include an above-market ground lease on a property where a third party owns and has leased the underlying land to us and, for the year ended December 31, 2012, our license to use the Behringer Harvard name and logo. In June 2013, we changed our name to TIER REIT, Inc. and no longer use the Behringer Harvard name or logo, and the asset was fully amortized. As of December 31, 2013 and 2012, the cost basis and accumulated amortization related to our consolidated other intangibles assets were as follows (in thousands):
		December 31, 2013				31-Dec-12
	Cost	$	2,978			$	4,422
	Less: accumulated depreciation and amortization	(715		)		(765		)
	Net	$	2,263			$	3,657
	We amortize the value of other intangible assets to expense over the estimated remaining useful life which has an ending date of December 2032. Anticipated amortization associated with other intangible assets for each of the following five years is as follows (in thousands):
	2014	$	119
	2015	$	119
	2016	$	119
	2017	$	119
	2018	$	119
Real Estate Held for Sale	'
	Real Estate Held for Sale
	We classify properties as held for sale when certain criteria are met, in accordance with GAAP.  At that time, we present the assets and obligations associated with the real estate held for sale separately in our consolidated balance sheet, and we cease recording depreciation and amortization expense related to that property.  Properties held for sale are reported at the lower of their carrying amount or their estimated fair value less estimated costs to sell.  We had no properties held for sale as of December 31, 2013. As of December 31, 2012, our 600 & 619 Alexander Road property was classified as held for sale and a sale was completed on February 15, 2013.
Asset Retirement Obligations	'
	Asset Retirement Obligations
	We record the fair value of any conditional asset retirement obligations if they can be reasonably estimated.  As part of the anticipated renovation of acquired properties, we will incur costs for the abatement of regulated materials, primarily asbestos-containing materials, as required under environmental regulations.  Our estimate of the fair value of the liabilities is based on future anticipated costs to be incurred for the legal removal or remediation of the regulated materials.  As of December 31, 2013 and 2012, the balance of our asset retirement obligations was approximately $2.7 million and $7.8 million, respectively, and was included in other liabilities.
Derivative Financial Instruments	'
	Derivative Financial Instruments
	We record all derivatives on the balance sheet at fair value.  The accounting for changes in the fair value of derivatives depends on the intended use of the derivative, whether we have elected to designate a derivative in a hedging relationship and apply hedge accounting and whether the hedging relationship has satisfied the criteria necessary to apply hedge accounting.  Derivatives designated and qualifying as a hedge of the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges.  For derivatives designated as fair value hedges, the changes in the fair value of both the derivative instrument and the hedged items are recorded in earnings. Derivatives designated and qualifying as a hedge of the exposure to variability in expected future cash flows, or other types of forecasted transactions, are considered cash flow hedges.  For derivatives designated as cash flow hedges, the effective portions of changes in the fair value of the derivative are reported in accumulated other comprehensive income (loss) and are subsequently reclassified into earnings when the hedged item affects earnings.  Changes in the fair value of derivative instruments not designated as hedges and ineffective portions of hedges are recognized in earnings in the affected period.  Hedge accounting generally provides for the matching of the timing of gain or loss recognition on the hedging instrument with the recognition of the changes in the fair value of the hedged asset or liability that are attributable to the hedged risk in a fair value hedge or the earnings effect of the hedged forecasted transactions in a cash flow hedge.  We may enter into derivative contracts that are intended to economically hedge certain of our risk, even though hedge accounting does not apply or we elect not to apply hedge accounting.
	As of December 31, 2013 and 2012, we do not have any derivatives designated as fair value hedges or hedges of net investments in foreign operations, nor are derivatives being used for trading or speculative purposes.
Valuation of Series A Convertible Preferred Stock	'
	Valuation of Series A Convertible Preferred Stock
	On September 4, 2012, we issued 10,000 shares of Series A participating, voting, convertible preferred stock (the “Series A Convertible Preferred Stock”) to Behringer Harvard Services Holdings, LLC (“Services Holdings”) as described further in Footnote 13 (Equity). The shares of Series A Convertible Preferred Stock are initially recorded at fair value and classified as temporary equity, outside the stockholders’ equity section, on our consolidated balance sheets. In estimating the fair value of these shares, management considered various potential outcomes for the conversion of the shares within the context of a probability weighted expected returns model. Subsequent to the date of issuance, the Series A Convertible Preferred Stock is adjusted to its maximum redemption value at the end of each reporting period. However, to the extent that the maximum redemption value of the Series A Convertible Preferred Stock does not exceed the fair value of the shares at the date of issuance, the shares are not adjusted below the fair value at the date of issuance. The maximum redemption value of the Series A Convertible Preferred Stock at December 31, 2013, is not greater than the fair value of these shares at the date of issuance. Therefore, no adjustment to the book value of these shares has been recorded.
Revenue Recognition	'
	Revenue Recognition
	We recognize rental income generated from all leases of consolidated real estate assets on a straight-line basis over the terms of the respective leases, including the effect of rent holidays, if any.  The total net increase to rental revenues due to straight-line rent adjustments for the years ended December 31, 2013, 2012 and 2011, was approximately $6.4 million, $16.1 million, and $25.0 million, respectively, and includes amounts recognized in discontinued operations.  Our rental revenue also includes amortization of acquired above- and below-market leases.  The total net increase to rental revenues due to the amortization of acquired above- and below-market leases for the years ended December 31, 2013, 2012 and 2011, was approximately $9.5 million, $11.7 million, and $18.1 million, respectively, and includes amounts recognized in discontinued operations. Revenues relating to lease termination fees are recognized on a straight-line basis amortized from the time that a tenant’s right to occupy the leased space is modified through the end of the revised lease term.  We recognized lease termination fees of approximately $2.3 million, $1.2 million, and $7.2 million for the years ended December 31, 2013, 2012 and 2011, respectively, which includes amounts recognized in discontinued operations.
Income Taxes	'
	Income Taxes
	We have elected to be taxed as a REIT under Sections 856 through 860 of the Internal Revenue Code of 1986, as amended (the “Code”), and have qualified as a REIT since the year ended December 31, 2004.  To qualify as a REIT, we must meet a number of organizational and operational requirements, including a requirement that we distribute at least 90% of our REIT taxable income (excluding net capital gains) to our stockholders.  As a REIT, we generally will not be subject to federal income tax at the corporate level (except to the extent we distribute less than 100% of our taxable income and/or net taxable capital gains). We generate certain of our taxable income through various taxable REIT subsidiary (“TRS”) entities. The taxable income of our TRS entities is subject to applicable federal, state, and local income and margin taxes.
Stock based Compensation	'
	Stock Based Compensation
	We have a stock-based incentive award plan for our employees, independent directors and consultants.  Compensation cost for restricted stock and restricted stock units are measured at the grant date, based on the estimated fair value of the award and will be recognized as expense over the service period based on the tiered lapse schedule and estimated forfeiture rates. Stock options are granted at the fair market value on the date of grant with fair value estimated using the Black-Scholes-Merton option valuation model, which incorporates assumptions surrounding volatility, distribution yield, the risk-free interest rate, expected life, and the exercise price as compared to the underlying stock price on the grant date. Any tax benefits associated with these share-based payments are classified as financing activities in the consolidated statements of cash flows.  For the year ended December 31, 2013, we had approximately $0.8 million in compensation costs related to share-based payments. For the years ended December 31, 2012 and 2011, we had no significant compensation cost related to share-based payments.
401(k) Plan	'
	401(k) Plan
	We have a 401(k) defined contribution plan (“401(k) Plan”) for the benefit of our eligible employees. Each employee may contribute up to 100% of their annual compensation, subject to specific limitations under the Code.  Our 401(k) Plan allows us to make discretionary contributions during each plan year. We made approximately $0.1 million in employer contributions during the year ended December 31, 2013, and no employer contributions during the year ended December 31, 2012.
Redeemable Common Stock	'
	Redeemable Common Stock
	Our board of directors had previously authorized a share redemption program to provide limited interim liquidity to stockholders.  In December 2012, our board of directors made a determination to suspend all redemptions until further notice. Our board maintains its right to reinstate the share redemption program, subject to the limits set forth in the program, if it deems it to be in the best interest of the Company.
	GAAP requires securities that are convertible for cash at the option of the holder to be classified outside of equity.  Accordingly, we did not reclassify the shares to be redeemed from equity to a liability until such time as the redemption was formally approved.
Concentration of Credit Risk	'
	Concentration of Credit Risk
	We have cash and cash equivalents and restricted cash deposited in certain financial institutions in excess of federally insured levels.  We have diversified our accounts with several banking institutions in an attempt to minimize exposure to any one of these institutions.  We regularly monitor the financial stability of these financial institutions and believe that we are not exposed to significant credit risk in cash and cash equivalents or restricted cash.
	We have a concentration of properties located in each of Houston, Texas; Chicago, Illinois; and Philadelphia, Pennsylvania, which subjects us to the business risk associated with our geographic concentration in these markets. The percentage of our total rental revenue from these markets for the years ended December 31, 2013, 2012 and 2011, are 48%, 45%, and 45%.
Noncontrolling interests	'
	Noncontrolling Interests
	Noncontrolling interests consists of our third-party partners’ proportionate share of equity in certain consolidated real estate properties, limited partnership units issued to third parties, restricted stock units issued to our independent directors, and for the year ended December 31, 2012, preferred stock issued by IPC (US), Inc.
Earnings Per Share	'
	Earnings per Share
	Earnings per share is calculated based on the weighted average number of common shares outstanding during each period.  As of December 31, 2013, we had options to purchase 75,000 shares of common stock outstanding at a weighted average exercise price of $6.69 per share.  As of December 31, 2012, we had options to purchase 97,250 shares of common stock outstanding at a weighted average exercise price of $7.17 per share. As of December 31, 2011, we had options to purchase 92,875 shares of common stock outstanding at a weighted average exercise price of $7.77 per share. At December 31, 2013, 2012 and 2011, Tier OP had 432,586 units of limited partnership interest held by third parties.  These units of limited partnership interest are convertible into an equal number of shares of our common stock.  As of December 31, 2013 and 2012, we had 10,000 shares of Series A participating, voting, convertible preferred stock outstanding. The options, units of limited partnership interest and convertible preferred stock are excluded from the calculation of earnings per share for all periods presented in this report because the effect would be anti-dilutive.  Gain on sale of assets is included in the calculation of loss from continuing operations per share in accordance with SEC guidelines.
Reportable Segments	'
	Reportable Segments
	Our current business consists of owning, operating, acquiring, developing, investing in, and disposing of real estate assets.  All of our consolidated revenues are from our consolidated real estate properties.  Our chief operating decision maker evaluates operating performance on an individual property level and views all of our real estate assets as one industry segment. Accordingly, all of our properties are aggregated into one reportable segment.
Subsequent Events	'
	Subsequent Events
	We have evaluated subsequent events for recognition or disclosure in our consolidated financial statements.

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2013
Real Estate [Abstract]	'
Anticipated amortization associated with the intangibles for each of the five years	'
	Anticipated amortization associated with the acquired lease intangibles for each of the next five years is as follows (in thousands):
	2014	$	13,428
	2015	$	9,324
	2016	$	6,370
	2017	$	3,824
	2018	$	3,033
Schedule of cost basis, accumulated depreciation and amortization related to entity's consolidated real estate properties and related lease intangibles	'
	As of December 31, 2013 and 2012, accumulated depreciation and amortization related to our consolidated real estate properties and related lease intangibles were as follows (in thousands):
							Lease Intangibles
							Assets						Liabilities
			Buildings and Improvements				Other Lease Intangibles			Acquired Above-Market Leases			Acquired Below-Market Leases
	as of December 31, 2013
	Cost		$	2,255,384			$	305,233		$	19,264		$	(76,750	)
	Less: accumulated depreciation and amortization		(586,585		)		(177,088		)	(13,045		)	52,180
	Net		$	1,668,799			$	128,145		$	6,219		$	(24,570	)
							Lease Intangibles
							Assets						Liabilities
			Buildings and Improvements				Other Lease Intangibles			Acquired Above-Market Leases			Acquired Below-Market Leases
	as of December 31, 2012
	Cost		$	2,823,672			$	420,399		$	27,539		$	(124,060	)
	Less: accumulated depreciation and amortization		(593,389		)		(224,705		)	(17,646		)	72,842
	Net		$	2,230,283			$	195,694		$	9,893		$	(51,218	)
Accounts Receivable, net	'
Summary of net accounts receivable	'
	The following is a summary of our accounts receivable as of December 31, 2013 and 2012 (in thousands):
			December 31, 2013				31-Dec-12
	Straight-line rental revenue receivable		$	88,370			$	102,789
	Tenant receivables		9,389				9,374
	Non-tenant receivables		714				1,050
	Allowance for doubtful accounts		(1,289		)		(1,263		)
	Total		$	97,184			$	111,950
Deferred Financing Fees, Net [Abstract]	'
Schedule of deferred financing fees	'
	The following is a summary of our deferred financing fees as of December 31, 2013 and 2012 (in thousands):
		December 31, 2013				December 31,
						2012
	Cost	$	26,044			$	36,101
	Less: accumulated amortization	(16,066		)		(19,850		)
	Net	$	9,978			$	16,251
Other Intangible Assets	'
Schedule of other intangible assets	'
	As of December 31, 2013 and 2012, the cost basis and accumulated amortization related to our consolidated other intangibles assets were as follows (in thousands):
		December 31, 2013				31-Dec-12
	Cost	$	2,978			$	4,422
	Less: accumulated depreciation and amortization	(715		)		(765		)
	Net	$	2,263			$	3,657
Anticipated amortization associated with other intangible assets for each of the five years [Table Text Block]	'
	Anticipated amortization associated with other intangible assets for each of the following five years is as follows (in thousands):
	2014	$	119
	2015	$	119
	2016	$	119
	2017	$	119
	2018	$	119

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Disclosures [Abstract]

'

Schedule of financial assets and liabilities measured at fair value on a recurring basis

'

The following table sets forth our financial liabilities measured at fair value on a recurring basis, which equals book value, by level within the fair value hierarchy as of December 31, 2012 (in thousands).

Basis of Fair Value Measurements

Quoted Prices In Active Markets for Identical Items (Level 1)

Significant Other Observable Inputs (Level 2)

Significant Unobservable Inputs (Level 3)

Total Fair Value

Description

31-Dec-12

Liabilities:

Derivative financial instruments

$

(1,427

)

$

—

$

(1,427

)

$

—

Schedule of assets measured at fair value and impaired during the periods presented

'

The following table summarizes those assets which were measured at fair value and impaired during 2012 (in thousands):

Basis of Fair Value Measurements

Description

Fair Value

Quoted Prices

Significant

Significant

Total

of Assets at Impairment

In Active

Other

Unobservable

Losses (1) (2)

Markets for

Observable

Inputs

Identical Items

Inputs

(Level 3)

(Level 1)

(Level 2)

2012

Real estate

$

303,254

$

—

$

—

$

303,254

$

(97,323

)

____________

-1

Excludes approximately $0.7 million in impairment losses of our discontinued operations.

-2

Includes approximately $12.8 million in impairment losses for properties that were disposed of and included in discontinued operations subsequent to December 31, 2012.

Schedule of quantitative information about the unobservable inputs of Level 3 real estate recorded at fair value

'

The following table sets forth quantitative information about the unobservable inputs (Level 3) of our real estate that was recorded at fair value as of the date of its impairment during the year ended December 31, 2012 (in thousands):

Fair Value of Assets at Impairment

Valuation Technique

Unobservable Input

Range

Real estate on which impairment losses were recognized

$

303,254

Discounted Cash Flow

Discount rate

7.05% - 13.00%

Terminal capitalization rate

6.10% - 10.00%

Market rent growth rate

0% - 3.00%

Expense growth rate

0% - 3.00%

Schedule of carrying amounts and related estimated fair value of notes payable

'

Carrying amounts and the related estimated fair value of our notes payable as of December 31, 2013 and 2012, are as follows (in thousands):

December 31, 2013

December 31, 2012

Carrying Amount

Fair Value

Carrying Amount

Fair Value

Notes Payable

$

1,490,367

$

1,510,691

$

2,107,380

$

2,128,724

Real_Estate_Activities_Tables

Real Estate Activities (Tables)	12 Months Ended
	Dec. 31, 2013
Real Estate [Abstract]	'
Summary of disposed consolidated properties	'
	The following table provides a summary of the consolidated properties we disposed of during the years ended December 31, 2013 and 2012 (in thousands):
			Date of Disposal		Rentable Square Footage (unaudited)	Contract Sales Price		Proceeds from Sale (1)
	Property Name			Location
	2013
	600 & 619 Alexander Road		2/15/13	Princeton, NJ	97	$	9,600	$	9,128
	5 & 15 Wayside		3/22/13	Burlington, MA	270	69,321		65,652
	Riverview Tower		5/2/13	Knoxville, TN	334	24,250		—
	Epic Center (2)		5/13/13	Wichita, KS	289	—		—
	One Brittany Place (2)		5/13/13	Wichita, KS	57	—		—
	Two Brittany Place (2)		5/13/13	Wichita, KS	58	—		—
	Tice Building (2)		8/30/13	Woodcliff Lakes, NJ	120	—		—
	One Edgewater Plaza (2)		8/30/13	Staten Island, NY	252	—		—
	Energy Centre		9/12/13	New Orleans, LA	757	86,500		80,720
	Ashford Perimeter (2)		9/13/13	Atlanta, GA	288	—		—
	10 & 120 South Riverside		11/14/13	Chicago, IL	1,411	361,000		340,366
					3,933	$	550,671	$	495,866
	2012
	Minnesota Center (2)		1/5/12	Bloomington, MN	276	$	—	$	—
	Southwest Center		5/15/12	Tigard, OR	89	10,600		10,334
	4440 El Camino Real		6/28/12	Los, Altos, CA	97	48,000		46,988
	One City Centre		9/20/12	Houston, TX	609	131,000		53,820
	17655 Waterview (2)		12/4/12	Richardson, TX	230	—		—
					1,301	$	189,600	$	111,142
	____________
	-1	In 2013, proceeds from sale are reduced by approximately $24.3 million in debt assumed by the purchasers and includes approximately $407.0 million in debt paid off with the proceeds of the sale of the properties. In 2012, proceeds from sale are reduced by approximately $73.1 million in debt assumed by the purchasers and include approximately $108.1 million in debt paid off with the proceeds from the sale of the properties.
	-2	Ownership of each of these properties was transferred to the lender pursuant to a foreclosure or deed-in-lieu of foreclosure.

Investments_in_Unconsolidated_1

Investments in Unconsolidated Entities (Tables)	12 Months Ended
	Dec. 31, 2013
Equity Method Investments and Joint Ventures [Abstract]	'
Summary of the entity's investments in unconsolidated entities	'
	The following is a summary of our investments in unconsolidated entities as of December 31, 2013 and 2012 (in thousands):
		Ownership Interest
	Property Name	December 31, 2013	31-Dec-12	December 31, 2013		31-Dec-12
	Wanamaker Building	60.00%	60.00%	$	39,229	$	49,332
	200 South Wacker (1)	9.87%	9.87%	1,495		3,616
	Paces West	10.00%	100.00%	1,038		—
	Total			$	41,762	$	52,948
	______________
	(1) As a result of the sale of this property in December 2013, based on the operating agreement, our economic interest in the entity was promoted to 30%.

Noncontrolling_Interests_Table

Noncontrolling Interests (Tables)	12 Months Ended
	Dec. 31, 2013
Noncontrolling Interest [Abstract]	'
Summary of noncontrolling interests	'
	The following table is a summary of our noncontrolling interest investments as of December 31, 2013 and 2012 (in thousands):
		December 31, 2013		December 31, 2012
	Noncontrolling interests in real estate properties	$	20	$	4,929
	Limited partnership units	734		709
	Restricted stock units	73		—
	IPC (US), Inc. preferred shares	—		(10		)
	Total	$	827	$	5,628

Leasing_Activity_Tables

Leasing Activity (Tables)	12 Months Ended
	Dec. 31, 2013
Leases [Abstract]	'
Leases of Lessor Disclosure [Text Block]	'
	As Lessor
	Future minimum base rental payments due to us under non-cancelable leases in effect as of December 31, 2013, for operating properties we consolidate are as follows (in thousands):
	Year	Amount
	2014	$	231,878
	2015	217,383
	2016	197,959
	2017	169,365
	2018	141,870
	Thereafter	377,768
	Total	$	1,336,223
Schedule of Future Minimum Rental Payments for Operating Leases	'
	As Lessee
	We have land that is subject to long-term ground leases and we lease space and office equipment for our corporate office. Total rent expense for the years ended December 31, 2013, 2012 and 2011, was approximately $1.2 million, $1.1 million and $1.2 million, respectively. Future minimum base rental payments payable by us under these non-cancelable leases are as follows (in thousands):
	Year	Amount
	2014	$	1,217
	2015	1,221
	2016	1,228
	2017	825
	2018	707
	Thereafter	21,604
	Total	$	26,802

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Schedule of Deferred Tax Assets and Liabilities	'
	At December 31, 2013 and 2012, our deferred tax assets and liabilities are as follows (in thousands):
		Year Ended December 31,
		2013			2012
	Deferred tax assets:
	C-Corp net operating losses (IPC)	$	—		$	19,532
	Net operating losses	2,598			2,626
	Depreciation and amortization	2,628			2,402
	Other	9			358
	Deferred tax assets, gross	5,235			24,918
	Valuation allowance	(3,234		)	(22,315		)
	Deferred tax assets, net	$	2,001		$	2,603
	Deferred tax liabilities:
	Deferred revenue	$	764		$	645
	Depreciation and amortization	2,505			3,652
	Other	5			7
	Deferred tax liabilities	$	3,274		$	4,304
	Amounts recognized in the consolidated balance sheets:
	Deferred tax assets	$	40		$	491
	Deferred tax liabilities	$	1,313		$	2,192
Summary of Valuation Allowance	'
	The following table summarizes the changes in our valuation allowance for the years ended December 31, 2013, 2012 and 2011 (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Balance at beginning of year	$	22,315		$	22,385		$	22,160
	Additions charged to expense	451			—			225
	Deductions	(19,532		)	(70		)	—
	Balance at end of year	$	3,234		$	22,315		$	22,385
Net Loss Attributable to Common Stockholders	'
	The following table reconciles our net income (loss) attributable to common stockholders to our taxable loss for the years ended December 31, 2013, 2012 and 2011 (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Net income (loss) attributable to common stockholders	$	15,552		$	(152,101	)	$	(181,450	)
	Depreciation and amortization	51,860			57,385			67,294
	Impairment losses	4,870			73,431			91,788
	GAAP rent adjustments	(14,330		)	(22,093		)	(40,753		)
	Loss on dispositions	(71,654		)	(31,538		)	(121,676		)
	Gain on troubled debt restructuring	(29,388		)	(35,757		)	(38,888		)
	Unconsolidated tax entities - primarily IPC (US), Inc.	(21,903		)	48,940			21,032
	Long term capital gain on exchange of stock for member interest in IPC (US), LLC	14,130			—			—
	Long term capital loss on investment allowed	(14,130		)	—			—
	Other	(1,341		)	(1,684		)	(997		)
	Taxable loss (1)	$	(66,334	)	$	(63,417	)	$	(203,650	)
	____________
	-1	Represents our projected taxable loss. As stated above, we elected for our subsidiary, IPC (US), Inc., to be taxed as a REIT beginning with the tax year ending December 31, 2008, and due to the conversion of IPC (US), Inc. into IPC (US), LLC, our final return for IPC (US), Inc. will be filed for the year ending December 31, 2013. As a result of this election, TIER REIT, Inc. and IPC (US), Inc. will file separate tax returns for a final year in 2013. Our taxable loss includes amounts related to IPC (US), Inc.’s taxable income only to the extent we receive a taxable dividend from IPC (US), Inc. The projected taxable gain for IPC (US), Inc. for the year ended December 31, 2013, prior to the deduction for dividends paid, is approximately $82.5 million; however, because the liquidating distributions from IPC (US), Inc. exceed this amount, there is no estimated taxable income. The estimated losses for IPC (US), Inc. for the years ended December 31, 2012 and 2011, were approximately $3.9 million and $8.8 million, respectively.
Schedule of Components of Income Tax Expense (Benefit)	'
	The components of the benefit (provision) for income taxes from continuing operations for the years ended December 31, 2013, 2012 and 2011 are as follows (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Current:
	Federal	$	(2	)	$	—		$	(33	)
	State	(944		)	(692		)	273
	Total current	(946		)	(692		)	240
	Deferred:
	Federal	84			181			(42		)
	State	344			451			417
	Total deferred	428			632			375
	Total income tax benefit (provision) - continuing operations	$	(518	)	$	(60	)	$	615

Derivative_Instruments_and_Hed1

Derivative Instruments and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2013
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Schedule of fair value of derivative financial instruments, included in prepaid expenses and other assets and other liabilities on consolidated balance sheet	'
	The table below presents the fair value of our derivative financial instruments, included in “other liabilities” on our consolidated balance sheets, as of December 31, 2013 and 2012 (in thousands):
	Derivatives designated as hedging instruments:	For the Year Ended December 31,
		2013			2012
	Interest rate caps	$	—		$	—
	Interest rate swaps	—			(1,427		)
	Total derivatives	$	—		$	(1,427	)
Schedule of effect of the change in fair value of derivative financial instruments in consolidated statements of operations and comprehensive loss	'
	The tables below present the effect of the change in fair value of derivative financial instruments in our consolidated statements of operations and comprehensive income (loss) for the years ended December 31, 2013, 2012 and 2011 (in thousands):
	Derivatives in Cash Flow Hedging Relationship
		Gain (loss) recognized in OCI on derivative (effective portion)
		for the Year Ended December 31,
		2013			2012			2011
	Interest rate caps	$	251		$	34		$	(285	)
	Interest rate swaps	1,428			(806		)	(621		)
	Total	$	1,679		$	(772	)	$	(906	)
			Amount of loss reclassified from OCI into income (effective portion)
			for the Year Ended December 31,
	Location		2013			2012			2011
	Interest expense (1)		$	1,006		$	903		$	149
	Total		$	1,006		$	903		$	149
	____________
	-1	Increases in fair value as a result of accrued interest associated with our swap and cap transactions are recorded in accumulated OCI and subsequently reclassified into income. Such amounts are shown net in the statements of changes in equity and offset dollar for dollar.

Notes_Payable_Tables

Notes Payable (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Disclosure [Abstract]	'
Summary of principal payments of notes payable	'
	The following table summarizes our notes payable as of December 31, 2013, (in thousands):
	Principal payments due in:
	2014	$	44,522
	2015	411,209
	2016	812,936
	2017	130,021
	2018	1,622
	Thereafter	90,119
	Unamortized discount	(62		)
	Total	$	1,490,367

Equity_Tables

Equity (Tables)	12 Months Ended
	Dec. 31, 2013
Equity [Abstract]	'
Schedule of distributions declared for both entity's common stock and noncontrolling interests	'
				Common Stockholders				Preferred		Noncontrolling
		Total		Cash		DRP		Stockholders		Interests
	2012
	1st Quarter	$	7,450	$	4,171	$	3,268	$	—	$	11
	2nd Quarter	7,830		4,177		3,275		—		378
	3rd Quarter	7,476		4,204		3,261		—		11
	4th Quarter	4,991		2,820		2,161		—		10
	Total	$	27,747	$	15,372	$	11,965	$	—	$	410

Related_Party_Transactions_Sch

Related Party Transactions Schedule of Related Party Transaction (Tables)	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Schedule of Related Party Transactions [Table Text Block]	'
	The following is a summary of the related party fees and costs we incurred with these entities during the years ended December 31, 2013, 2012 and 2011 (in thousands):
		Year Ended December 31,
		2013		2012		2011
	BHT Advisors, acquisition fees (1)	$	934	$	106	$	96
	BHT Advisors, debt financing fees	—		660		6,101
	BHT Advisors, asset management fee	—		10,484		20,081
	BHT Advisors, other fees and reimbursement for services provided	2,426		3,766		3,822
	HPT Management, property and construction management fees	13,191		13,931		14,263
	HPT Management, reimbursement of costs and expenses	21,022		23,537		25,165
	Total	$	37,573	$	52,484	$	69,528
	Expensed	$	35,356	$	50,668	$	61,974
	Capitalized to deferred financing fees	—		660		6,101
	Capitalized to real estate under development	934		106		—
	Capitalized to buildings and improvements, net	1,283		1,050		1,453
	Total	$	37,573	$	52,484	$	69,528
	______________
	(1) Acquisition fees in 2013 and 2012 relate to the development of Two BriarLake Plaza.

Supplemental_Cash_Flow_Informa1

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2013
Supplemental Cash Flow Elements [Abstract]	'
Schedule of supplemental cash flow information	'
	Supplemental cash flow information is summarized below for the years ended December 31, 2013, 2012 and 2011 (in thousands):
		2013		2012		2011
	Interest paid, net of amounts capitalized	$	106,946	$	118,530	$	143,466
	Income taxes paid	$	1,440	$	1,232	$	2,311
	Non-cash investing activities:
	Property and equipment additions in accounts payable and accrued liabilities	$	25,666	$	25,751	$	27,354
	Transfer of real estate and lease intangibles through cancellation of debt	$	52,361	$	32,700	$	65,870
	Transfer of investment through cancellation of debt	$	—	$	4,259	$	—
	Sale of real estate and lease intangibles to unconsolidated joint venture	60,660		—		—
	Non-cash financing activities:
	Common stock issued in distribution reinvestment plan	$	—	$	13,066	$	13,297
	Mortgage notes assumed by the Company	$	—	$	—	$	2,091
	Accrual for distributions declared	$	—	$	—	$	2,481
	Assumption of debt by unconsolidated joint venture	$	82,291	$	—	$	—
	Mortgage notes assumed by purchaser	$	24,250	$	73,119	$	28,754
	Cancellation of debt through transfer of real estate	$	57,934	$	59,251	$	103,737
	Cancellation of debt through discounted payoff	$	9,530	$	—	$	—
	Issuance of Series A Convertible Preferred Stock	$	—	$	2,700	$	—
	Financing costs in accrued liabilities	$	65	$	—	$	—

Discontinued_Operations_and_Re1

Discontinued Operations and Real Estate Held for Sale (Tables)	12 Months Ended
	Dec. 31, 2013										Dec. 31, 2012
Discontinued Operations and Disposal Groups [Abstract]	'										'
Schedule of results of operations for real estate properties reclassified as discontinued operations	'										'
	The results of operations for each of these properties have been reclassified as discontinued operations in the accompanying consolidated statements of operations and comprehensive income (loss) for the years ended December 31, 2013, 2012 and 2011, as summarized in the following table (in thousands):
		Year Ended December 31,
		2013			2012			2011
	Rental revenue	$	62,988		$	103,105		$	128,229
	Expenses
	Property operating expenses	18,125			33,178			43,291
	Interest expense	6,994			18,979			43,348
	Real estate taxes	10,341			14,909			20,436
	Property and asset management fees	1,657			5,384			8,907
	Asset impairment losses	4,879			13,514			65,710
	Depreciation and amortization	26,265			41,939			56,032
	Total expenses	68,261			127,903			237,724
	Provision for income taxes	(1		)	(7		)	(1		)
	Loss on early extinguishment of debt	(1,416		)	—			—
	Gain on troubled debt restructuring	36,726			35,421			37,903
	Interest and other income (expense)	(1		)	224			2,283
	Gain (loss) from discontinued operations	$	30,035		$	10,840		$	(69,310	)
Schedule of major classes of real estate and related assets and obligations held for sale	'										'
											The major classes of assets and obligations associated with real estate held for sale are as follows (in thousands):
												31-Dec-12
											Land	$	1,384
											Buildings and improvements, net	6,592
											Accounts receivable and other assets, net	1,884
											Lease intangibles, net	858
											Assets associated with real estate held for sale	$	10,718
											Notes payable	$	16,400
											Other liabilities	1,983
											Obligations associated with real estate held for sale	$	18,383

Quarterly_Results_Unaudited_Qu

Quarterly Results (Unaudited) Quarterly Results (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]	'
Schedule of Quarterly Financial Information	'
	Presented below is a summary of the unaudited quarterly financial information for the years ended December 31, 2013 and 2012 (in thousands, except per share data):
	2013 Quarters Ended	March 31			June 30			September 30			December 31
	Rental revenue	$	86,336		$	87,196		$	86,192		$	84,830
	Loss from continuing operations before gain on sale or transfer of assets	$	(22,624	)	$	(21,887	)	$	(24,669	)	$	(1,410	)
	Income from discontinued operations	10,500			1,719			31,817			26,435
	Gain on sale or transfer of assets	16,102			—			—			—
	Net income (loss)	3,978			(20,168		)	7,148			25,025
	Noncontrolling interests in continuing operations	11			30			36			3
	Noncontrolling interests in discontinued operations	(23		)	1			(465		)	(24		)
	Net income (loss) attributable to common stockholders	$	3,966		$	(20,137	)	$	6,719		$	25,004
	Basic and diluted weighted average common shares outstanding	299,192			299,192			299,192			299,192
	Basic and diluted income (loss) per common share	$	0.01		$	(0.07	)	$	0.02		$	0.08
	2012 Quarters Ended	March 31			June 30			September 30			December 31
	Rental revenue	$	86,959		$	87,865		$	89,060		$	88,645
	Loss from continuing operations before gain on sale or transfer of assets	$	(31,401	)	$	(43,378	)	$	(24,845	)	$	(91,790	)
	Income (loss) from discontinued operations	3,199			9,240			(6,451		)	24,982
	Gain on sale or transfer of assets	362			—			—			7,721
	Net loss	(27,840		)	(34,138		)	(31,296		)	(59,087		)
	Noncontrolling interests in continuing operations	46			63			37			122
	Noncontrolling interests in discontinued operations	(5		)	(29		)	32			(6		)
	Net loss attributable to common stockholders	$	(27,799	)	$	(34,104	)	$	(31,227	)	$	(58,971	)
	Basic and diluted weighted average common shares outstanding	297,646			298,113			298,618			299,102
	Basic and diluted loss per common share	$	(0.09	)	$	(0.11	)	$	(0.10	)	$	(0.20	)

Business_Details

Business (Details)	Dec. 31, 2013
	state
	property
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Number of properties in which ownership interest is held by the entity	38
Number of real estate properties under development	1
Number of states in which the entity owned interests in properties	15

Summary_of_Significant_Account3

Summary of Significant Accounting Policies (Real Estate) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accumulated depreciation and amortization related to real estate properties and related lease intangibles	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Life Used for Depreciation	'25 years	'
Real estate properties	'	'
Buildings and improvements, net	$1,668,799	$2,230,283
Intangible assets	'	'
Lease intangibles, net	134,364	205,587
Intangible liabilities	'	'
Net	24,570	51,218
Other Lease Intangibles	'	'
Intangible assets	'	'
Cost	305,233	420,399
Less: accumulated depreciation and amortization	-177,088	-224,705
Lease intangibles, net	128,145	195,694
Acquired Above-Market Leases	'	'
Intangible assets	'	'
Cost	19,264	27,539
Less: accumulated depreciation and amortization	-13,045	-17,646
Lease intangibles, net	6,219	9,893
Acquired Below-Market Leases	'	'
Intangible liabilities	'	'
Cost	-76,750	-124,060
Less: accumulated depreciation and amortization	52,180	72,842
Net	-24,570	-51,218
Leases, Acquired-in-Place, Amortization [Member]	'	'
Anticipated amortization associated with the acquired lease intangibles for each of the following five years	'	'
2014	13,428	'
2015	9,324	'
2016	6,370	'
2017	3,824	'
2018	3,033	'
Building and Building Improvements [Member]	'	'
Real estate properties	'	'
Cost	2,255,384	2,823,672
Less: accumulated depreciation and amortization	-586,585	-593,389
Buildings and improvements, net	$1,668,799	$2,230,283

Summary_of_Significant_Account4

Summary of Significant Accounting Policies (Details 2) (USD $)

12 Months Ended

0 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Sep. 04, 2012

Dec. 31, 2013

Dec. 31, 2012

Consolidated Entities

Consolidated Entities

Consolidated Entities

Unconsolidated Entities [Member]

Unconsolidated Entities [Member]

Unconsolidated Entities [Member]

Behringer Harvard Reit I Services Holdings Llc [Member]

Wanamaker Building [Member]

Wanamaker Building [Member]

Schedule of Real Estate Properties and Related Lease Intangibles [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

Non-cash impairment charges

$4,879,000

$98,050,000

$93,080,000

$4,900,000

$98,100,000

$92,800,000

$0

$0

$300,000

'

'

'

Accounts Receivable, net

'

'

'

'

'

'

'

'

'

'

'

'

Straight-line rental revenue receivable

88,370,000

102,789,000

'

'

'

'

'

'

'

'

'

'

Tenant receivables

9,389,000

9,374,000

'

'

'

'

'

'

'

'

'

'

Non-tenant receivables

714,000

1,050,000

'

'

'

'

'

'

'

'

'

'

Allowance for doubtful accounts

-1,289,000

-1,263,000

'

'

'

'

'

'

'

'

'

'

Total accounts receivable

97,184,000

111,950,000

'

'

'

'

'

'

'

'

'

'

Equity Method Investments and Joint Ventures [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

Ownership Interest (as a percent)

'

'

'

'

'

'

'

'

'

'

60.00%

60.00%

Percentage of ownership vote needed for major decision

'

'

'

'

'

'

'

'

'

'

70.00%

'

Deferred Financing Fees, Net [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

Deferred Finance Costs, Gross

26,044,000

36,101,000

'

'

'

'

'

'

'

'

'

'

Accumulated amortization of deferred financing fees

-16,066,000

-19,850,000

'

'

'

'

'

'

'

'

'

'

Deferred financing fees, net of accumulated amortization

9,978,000

16,251,000

'

'

'

'

'

'

'

'

'

'

Other Intangible Assets

'

'

'

'

'

'

'

'

'

'

'

'

Intangible Assets, Gross (Including Goodwill)

2,978,000

4,422,000

'

'

'

'

'

'

'

'

'

'

Intangible Assets, Accumulated Amortization

-715,000

-765,000

'

'

'

'

'

'

'

'

'

'

Intangible Assets, Net (Including Goodwill)

2,263,000

3,657,000

'

'

'

'

'

'

'

'

'

'

Anticipated amortization associated with other intangible assets for each of the following five years

'

'

'

'

'

'

'

'

'

'

'

'

2014

119,000

'

'

'

'

'

'

'

'

'

'

'

2015

119,000

'

'

'

'

'

'

'

'

'

'

'

2016

119,000

'

'

'

'

'

'

'

'

'

'

'

2017

119,000

'

'

'

'

'

'

'

'

'

'

'

2018

119,000

'

'

'

'

'

'

'

'

'

'

'

Asset Retirement Obligation

'

'

'

'

'

'

'

'

'

'

'

'

Asset retirement obligation

2,700,000

7,800,000

'

'

'

'

'

'

'

'

'

'

Valuation of Series A Convertible Preferred Stock

'

'

'

'

'

'

'

'

'

'

'

'

Stock issued during period in exchange of surrender of non-participating and non-voting convertible stock

'

'

'

'

'

'

'

'

'

10,000

'

'

Revenue Recognition

'

'

'

'

'

'

'

'

'

'

'

'

Net increase in rental revenues due to straight-line rent adjustments

6,400,000

16,100,000

25,000,000

'

'

'

'

'

'

'

'

'

Amortization of above and below market leases

9,540,000

11,741,000

18,110,000

'

'

'

'

'

'

'

'

'

Lease termination fee revenue

$2,300,000

$1,200,000

$7,200,000

'

'

'

'

'

'

'

'

'

Summary_of_Significant_Account5

Summary of Significant Accounting Policies (Income Tax - 401K) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes	'	'	'
Required minimum percentage distribution of ordinary taxable income (excluding net capital gains) to stockholders to qualify as a REIT	90.00%	'	'
Required minimum percentage distribution of ordinary taxable income and/or net taxable capital gains to stockholders in order to remain exempt from federal income tax as a REIT	100.00%	'	'
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'	'	'
Share-based Compensation	$0.80	$0	$0
401 (k) Plan	'	'	'
Maximum annual contribution per employee, percent	100.00%	'	'
Defined Contribution Plan, Employer Discretionary Contribution Amount	$0.10	$0	'
Geographic Concentration of Credit Risk [Abstract]	'	'	'
Concentration Risk, Percentage	48.00%	45.00%	45.00%

Summary_of_Significant_Account6

Summary of Significant Accounting Policies (EPS and Segments) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Earnings per Share	'	'	'
Options to purchase shares of common stock	75,000	97,250	92,875
Weighted average exercise price (in dollars per share)	$6.69	$7.17	$7.77
Units of limited partnership interest held by third parties (in shares)	432,586	432,586	432,586
Series A participating, voting, convertible preferred stock outstanding (in shares)	10,000	10,000	'
Segment Reporting [Abstract]	'	'	'
Number of Reportable Segments	1	'	'

Fair_Value_Measurements_Detail

Fair Value Measurements (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012		Dec. 31, 2011
Assets measured at fair value	'	'		'
Derivative, Number of Instruments Held	0	'		'
Assets:	'	'		'
Real estate	$2,037,575,000	$2,628,969,000		'
Investments in unconsolidated entities	41,762,000	52,948,000		'
Total losses pertaining to real estate	'	-97,323,000	[1],[2]	'
Impairment losses of discontinued operations	4,900,000	700,000		'
Impairment losses for properties disposed	'	12,800,000		'
Asset Impairment Charges	0	84,536,000		27,370,000
Recurring basis | Total Fair Value	'	'		'
Liabilities:	'	'		'
Derivative financial instruments	'	-1,427,000		'
Recurring basis | Level 1	'	'		'
Liabilities:	'	'		'
Derivative financial instruments	'	0		'
Recurring basis | Level 2	'	'		'
Liabilities:	'	'		'
Derivative financial instruments	'	-1,427,000		'
Recurring basis | Level 3	'	'		'
Liabilities:	'	'		'
Derivative financial instruments	'	0		'
Nonrecurring basis | Total Fair Value	'	'		'
Assets:	'	'		'
Real estate	'	303,254,000		'
Nonrecurring basis | Level 1	'	'		'
Assets:	'	'		'
Real estate	'	0		'
Nonrecurring basis | Level 2	'	'		'
Assets:	'	'		'
Real estate	'	0		'
Nonrecurring basis | Level 3	'	'		'
Assets:	'	'		'
Real estate	'	$303,254,000		'
[1]	Excludes approximately $0.7 million in impairment losses of our discontinued operations.
[2]	Includes approximately $12.8 million in impairment losses for properties that were disposed of and included in discontinued operations subsequent to December 31, 2012.

Fair_Value_Measurements_Detail1

Fair Value Measurements (Details 2) (Nonrecurring basis, Level 3, Real estate on which impairment losses were recognized, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2012
Fair Value Measurements	'
Fair value of assets at impairment	303,254
Discounted Cash Flow | Minimum	'
Fair Value Measurements	'
Discount rate (as a percent)	7.05%
Terminal capitalization rate (as a percent)	6.10%
Market rent growth rate (as a percent)	0.00%
Expense growth rate (as a percent)	0.00%
Discounted Cash Flow | Maximum	'
Fair Value Measurements	'
Discount rate (as a percent)	13.00%
Terminal capitalization rate (as a percent)	10.00%
Market rent growth rate (as a percent)	3.00%
Expense growth rate (as a percent)	3.00%

Fair_Value_Measurements_Detail2

Fair Value Measurements (Details 3) (Level 2, USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Carrying Amount	'	'
Financial Instruments not Reported at Fair Value	'	'
Notes Payable	$1,490,367	$2,107,380
Fair Value	'	'
Financial Instruments not Reported at Fair Value	'	'
Notes Payable	$1,510,691	$2,128,724

Real_Estate_Activities_Details

Real Estate Activities (Details) (USD $)

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Feb. 15, 2013

Dec. 31, 2013

Mar. 22, 2013

Dec. 31, 2013

2-May-13

Dec. 31, 2013

13-May-13

Dec. 31, 2013

13-May-13

Dec. 31, 2013

13-May-13

Dec. 31, 2013

Aug. 30, 2013

Dec. 31, 2013

Aug. 30, 2013

Dec. 31, 2013

Sep. 12, 2013

Dec. 31, 2013

Sep. 13, 2013

Dec. 31, 2013

Nov. 14, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Jan. 05, 2012

Dec. 31, 2012

15-May-12

Dec. 31, 2012

Jun. 28, 2012

Dec. 31, 2012

Sep. 20, 2012

Dec. 31, 2012

Dec. 04, 2012

600 & 619 Alexander Road [Member]

600 & 619 Alexander Road [Member]

5 & 15 Wayside Burlington Ma [Member]

5 & 15 Wayside Burlington Ma [Member]

Riverview Tower Knoxville Tn [Member]

Riverview Tower Knoxville Tn [Member]

Epic Center [Member]

Epic Center [Member]

One Brittany Place [Member]

One Brittany Place [Member]

Two Brittany Place [Member]

Two Brittany Place [Member]

Tice Building Woodcliff Lake Nj [Member]

Tice Building Woodcliff Lake Nj [Member]

One Edgewater Plaza [Member]

One Edgewater Plaza [Member]

Energy Centre New Orleans La [Member]

Energy Centre New Orleans La [Member]

Ashford Perimeter Atlanta Ga [Member]

Ashford Perimeter Atlanta Ga [Member]

10 & 120 South Riverside Chicago Il

10 & 120 South Riverside Chicago Il

Disposed Properties [Member]

Disposed Properties [Member]

Minnesota Center

Minnesota Center

Southwest Center

Southwest Center

4440 El Camino Real

4440 El Camino Real

One City Centre

One City Centre

17655 Waterview

17655 Waterview

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

sqft

Disposal of real estate properties

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Rentable square footage

'

'

'

'

97,000

'

270,000

'

334,000

'

289,000

[1]

'

57,000

[1]

'

58,000

[1]

'

120,000

[1]

'

252,000

[1]

'

757,000

'

288,000

[1]

'

1,411,000

3,933,000

1,301,000

'

276,000

[1]

'

89,000

'

97,000

'

609,000

'

230,000

[1]

Contract sale price

$550,671,000

$189,600,000

'

'

$9,600,000

'

$69,321,000

'

$24,250,000

'

$0

[1]

'

$0

[1]

'

$0

[1]

'

$0

[1]

'

$0

[1]

'

$86,500,000

'

$0

[1]

'

$361,000,000

'

'

'

$0

[1]

'

$10,600,000

'

$48,000,000

'

$131,000,000

'

$0

[1]

Proceeds from sale of discontinued operations

495,866,000

111,142,000

89,998,000

9,128,000

'

65,652,000

'

0

'

0

[1]

'

0

[1]

'

0

[1]

'

0

[1]

'

0

[1]

'

80,720,000

'

0

[1]

'

340,366,000

'

495,866,000

[2]

111,142,000

[2]

0

[1]

'

10,334,000

[2]

'

46,988,000

[2]

'

53,820,000

[2]

'

0

[1]

'

Mortgage notes assumed by purchaser

24,250,000

73,119,000

28,754,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayments of debt

$407,000,000

$108,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

[1]

Ownership of each of these properties was transferred to the lender pursuant to a foreclosure or deed-in-lieu of foreclosure.

[2]

In 2013, proceeds from sale are reduced by approximately $24.3 million in debt assumed by the purchasers and includes approximately $407.0 million in debt paid off with the proceeds of the sale of the properties. In 2012, proceeds from sale are reduced by approximately $73.1 million in debt assumed by the purchasers and include approximately $108.1 million in debt paid off with the proceeds from the sale of the properties.

Investments_in_Unconsolidated_2

Investments in Unconsolidated Entities (Details) (USD $)

3 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 19, 2013

Dec. 31, 2012

Dec. 31, 2013

Jan. 08, 2013

Dec. 31, 2012

Wanamaker Building

Wanamaker Building

200 South Wacker

200 South Wacker

200 South Wacker

Paces West

Paces West

Paces West

Investments in unconsolidated entities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ownership Interest (as a percent)

'

'

'

'

'

'

'

'

'

'

'

60.00%

60.00%

9.87%

'

9.87%

10.00%

'

100.00%

Economic interest (as a percent)

'

'

'

'

'

'

'

'

'

'

'

'

'

30.00%

'

'

'

'

'

Amount of investment

$41,762,000

'

'

'

$52,948,000

'

'

'

$41,762,000

$52,948,000

'

$39,229,000

$49,332,000

$1,495,000

[1]

'

$3,616,000

$1,038,000

'

$0

Notes payable

1,490,367,000

'

'

'

2,107,380,000

'

'

'

1,490,367,000

2,107,380,000

'

'

'

'

'

'

'

'

'

Equity in (earnings) losses of investments

'

'

'

'

'

'

'

'

-24,547,000

-1,725,000

2,302,000

'

'

'

'

'

'

'

'

Distributions from investments

'

'

'

'

'

'

'

'

36,300,000

2,900,000

'

'

'

'

'

'

'

'

'

Gain (Loss) on Sale of Investments

'

'

'

'

'

'

'

'

'

'

'

'

'

25,100,000

'

'

'

'

'

Additional investments in unconsolidated entities

'

'

'

'

'

'

'

'

1,500,000

1,330,000

4,057,000

'

'

'

'

'

'

'

'

Contract sale price

550,671,000

'

'

'

189,600,000

'

'

'

550,671,000

189,600,000

'

'

'

'

214,500,000

'

'

82,300,000

'

Assumption of debt by unconsolidated joint venture

'

'

'

'

'

'

'

'

82,291,000

0

0

'

'

'

'

'

'

'

'

Proceeds from sale of property

'

'

'

'

'

'

'

'

495,866,000

111,142,000

89,998,000

'

'

'

'

'

0

'

'

Gain on sale or transfer of assets

0

0

0

16,102,000

7,721,000

0

0

362,000

16,102,000

8,083,000

1,385,000

'

'

'

'

'

'

'

'

Return of investments

'

'

'

'

'

'

'

'

$36,310,000

$2,278,000

$780,000

'

'

$26,700,000

'

'

'

'

'

[1]

As a result of the sale of this property in December 2013, based on the operating agreement, our economic interest in the entity was promoted to 30%.

Noncontrolling_Interests_Detai

Noncontrolling Interests (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Noncontrolling Interest [Abstract]	'	'
Noncontrolling interests in real estate properties	$20	$4,929
Limited partnership units	734	709
Restricted stock units	73	0
IPC (US), Inc. preferred shares	0	-10
Total	$827	$5,628

Real_Estate_Under_Development_

Real Estate Under Development (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Real Estate Under Development [Abstract]	'	'
Development costs capitalized	$45,200,000	$3,500,000
Interest costs capitalized	1,100,000	100,000
Real estate under development	51,144,000	5,950,000
Real estate under development which includes previously purchased land	2,500,000	'
Available borrowings under construction loan	66,000,000	'
Draws on construction loan	$16,800,000	'

Leasing_Activity_Details

Leasing Activity (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Operating Leases, Future Minimum Payments Receivable [Abstract]	'	'	'
2014	$231,878,000	'	'
2015	217,383,000	'	'
2016	197,959,000	'	'
2017	169,365,000	'	'
2018	141,870,000	'	'
Thereafter	377,768,000	'	'
Total	1,336,223,000	'	'
Operating Leases, Rent Expense, Net [Abstract]	'	'	'
Rent expense	1,200,000	1,100,000	1,200,000
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]	'	'	'
2014	1,217,000	'	'
2015	1,221,000	'	'
2016	1,228,000	'	'
2017	825,000	'	'
2018	707,000	'	'
Thereafter	21,604,000	'	'
Total	$26,802,000	'	'

Income_Taxes_Details

Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]	'	'
Required minimum percentage distribution of ordinary taxable income (excluding net capital gains) to stockholders to qualify as a REIT	90.00%	'
Required minimum percentage distribution of ordinary taxable income and/or net taxable capital gains to stockholders in order to remain exempt from federal income tax as a REIT	100.00%	'
Operating Loss Carryforwards [Line Items]	'	'
Deferred Tax Assets, Operating Loss Carryforwards Related to Business Combination	$0	$19,532,000
Deferred tax assets on net operating loss carryforwards	2,598,000	2,626,000
Internal Revenue Service (IRS) | IPC (US), Inc	'	'
Operating Loss Carryforwards [Line Items]	'	'
Operating loss carryforwards	'	$55,800,000

Income_Taxes_Details_2

Income Taxes (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Components of Deferred Tax Assets and Liabilities [Abstract]	'	'
C-Corp net operating loss (IPC)	$0	$19,532
Net operating losses	2,598	2,626
Depreciation and amortization	2,628	2,402
Other	9	358
Deferred tax assets, gross	5,235	24,918
Valuation allowance	-3,234	-22,315
Deferred tax assets, net	2,001	2,603
Deferred revenue	764	645
Depreciation and amortization	2,505	3,652
Other	5	7
Deferred tax liabilities	3,274	4,304
Deferred tax assets	40	491
Deferred tax liabilities	$1,313	$2,192

Income_Taxes_Details_3

Income Taxes (Details 3) (Valuation Allowance of Deferred Tax Assets, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Valuation Allowance of Deferred Tax Assets	'	'	'
Movement in Valuation Allowances and Reserves [Roll Forward]	'	'	'
Balance at beginning of year	$22,315	$22,385	$22,160
Additions charged to expense	451	0	225
Deductions	-19,532	-70	0
Balance at end of year	$3,234	$22,315	$22,385

Income_Taxes_Income_Taxes_Deta

Income Taxes Income Taxes (Details 4) (USD $)

3 Months Ended

12 Months Ended

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Income Tax Disclosure [Abstract]

'

'

'

'

'

'

'

'

'

'

'

Unrecognized tax benefit liability

$0

'

'

'

$0

'

'

'

$0

$0

'

Amount of net assets and liabilities at tax basis exceed book value

207,600,000

'

'

'

331,100,000

'

'

'

207,600,000

331,100,000

'

Effective Income Tax Reconcilation of Net Income (Loss) from Book Basis to Tax Basis [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Net income (loss) attributable to common stockholders

25,004,000

6,719,000

-20,137,000

3,966,000

-58,971,000

-31,227,000

-34,104,000

-27,799,000

15,552,000

-152,101,000

-181,450,000

Depreciation and amortization

'

'

'

'

'

'

'

'

51,860,000

57,385,000

67,294,000

Impairment losses

'

'

'

'

'

'

'

'

4,870,000

73,431,000

91,788,000

GAAP rent adjustments

'

'

'

'

'

'

'

'

-14,330,000

-22,093,000

-40,753,000

Loss on dispositions

'

'

'

'

'

'

'

'

-71,654,000

-31,538,000

-121,676,000

Gain on troubled debt restructuring

'

'

'

'

'

'

'

'

-29,388,000

-35,757,000

-38,888,000

Unconsolidated tax entities - primarily IPC (US), Inc.

'

'

'

'

'

'

'

'

-21,903,000

48,940,000

21,032,000

Effective Income Tax Reconciliation, Long-term capital gain

'

'

'

'

'

'

'

'

14,130,000

0

0

Effective Income Tax Reconciliation, Long-term capital loss

'

'

'

'

'

'

'

'

-14,130,000

0

0

Other

'

'

'

'

'

'

'

'

-1,341,000

-1,684,000

-997,000

Taxable loss

'

'

'

'

'

'

'

'

-66,334,000

[1]

-63,417,000

[1]

-203,650,000

[1]

IPC (US), Inc

'

'

'

'

'

'

'

'

'

'

'

Effective Income Tax Reconcilation of Net Income (Loss) from Book Basis to Tax Basis [Line Items]

'

'

'

'

'

'

'

'

'

'

'

Projected taxable gain

'

'

'

'

'

'

'

'

82,500,000

'

'

Taxable loss

'

'

'

'

'

'

'

'

$0

$3,900,000

$8,800,000

[1]

Represents our projected taxable loss. As stated above, we elected for our subsidiary, IPC (US), Inc., to be taxed as a REIT beginning with the tax year ending December 31, 2008, and due to the conversion of IPC (US), Inc. into IPC (US), LLC, our final return for IPC (US), Inc. will be filed for the year ending December 31, 2013. As a result of this election, TIER REIT, Inc. and IPC (US), Inc. will file separate tax returns for a final year in 2013. Our taxable loss includes amounts related to IPC (US), Inc.’s taxable income only to the extent we receive a taxable dividend from IPC (US), Inc. The projected taxable gain for IPC (US), Inc. for the year ended December 31, 2013, prior to the deduction for dividends paid, is approximately $82.5 million; however, because the liquidating distributions from IPC (US), Inc. exceed this amount, there is no estimated taxable income. The estimated losses for IPC (US), Inc. for the years ended December 31, 2012 and 2011, were approximately $3.9 million and $8.8 million, respectively.

Income_Taxes_Details_5

Income Taxes (Details 5) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current Income Tax Expense (Benefit), Continuing Operations [Abstract]	'	'	'
Federal	($2)	$0	($33)
State	-944	-692	273
Total current	-946	-692	240
Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract]	'	'	'
Federal	84	181	-42
State	344	451	417
Total deferred	428	632	375
Total income tax benefit (provision) - continuing operations	($518)	($60)	$615

Derivative_Instruments_and_Hed2

Derivative Instruments and Hedging Activities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified
Derivative Instruments and Hedging Activities	'	'
Derivative, Number of Instruments Held	0	'
Derivatives designated as hedging instruments	'	'
Derivative Liabilities	'	'
Derivative financial instruments	$0	($1,427)
Interest Rate Cap [Member] | Derivatives designated as hedging instruments	'	'
Derivative Liabilities	'	'
Derivative financial instruments	0	0
Interest Rate Swap [Member] | Derivatives designated as hedging instruments	'	'
Derivative Liabilities	'	'
Derivative financial instruments	$0	($1,427)

Derivative_Instruments_and_Hed3

Derivative Instruments and Hedging Activities (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Derivative Instruments and Hedging Activities	'		'		'
Loss on derivatives	$251		$66		$0
Cash Flow Hedging	'		'		'
Derivative Instruments and Hedging Activities	'		'		'
Gain (loss) recognized in OCI on derivative (effective portion)	1,679		-772		-906
Amount reclassified from OCI into income (effective portion)	1,006		903		149
Cash Flow Hedging | Interest expense	'		'		'
Derivative Instruments and Hedging Activities	'		'		'
Amount reclassified from OCI into income (effective portion)	1,006	[1]	903	[1]	149	[1]
Cash Flow Hedging | Interest rate caps	'		'		'
Derivative Instruments and Hedging Activities	'		'		'
Gain (loss) recognized in OCI on derivative (effective portion)	251		34		-285
Cash Flow Hedging | Interest rate swaps	'		'		'
Derivative Instruments and Hedging Activities	'		'		'
Gain (loss) recognized in OCI on derivative (effective portion)	$1,428		($806)		($621)
[1]	Increases in fair value as a result of accrued interest associated with our swap and cap transactions are recorded in accumulated OCI and subsequently reclassified into income. Such amounts are shown net in the statements of changes in equity and offset dollar for dollar.

Notes_Payable_Details

Notes Payable (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Long-term debt	'	'
Draws on construction loan	$16,800,000	'
Principal payments due in:	'	'
Total	1,490,367,000	2,107,380,000
Notes payable	'	'
Long-term debt	'	'
Overall effective weighted average interest rate (as a percent)	5.69%	'
Principal payments due in:	'	'
2014	44,522,000	'
2015	411,209,000	'
2016	812,936,000	'
2017	130,021,000	'
2018	1,622,000	'
Thereafter	90,119,000	'
unamortized discount	-62,000	'
Total	$1,490,367,000	$2,100,000,000
Minimum | Notes payable	'	'
Long-term debt	'	'
Stated annual interest rate, low end of range (as a percent)	3.04%	'
Maximum | Notes payable	'	'
Long-term debt	'	'
Stated annual interest rate, high end of range (as a percent)	6.22%	'
Mezzanine Loan One [Member] | Notes payable	'	'
Long-term debt	'	'
Debt Instrument, Interest Rate, Stated Percentage	9.80%	'

Notes_Payable_Credit_Facility_

Notes Payable (Credit Facility) (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Credit Facility	'
Number of real estate properties held as collateral	6
Credit facility | Tier Operating Partnership LP [Member]	'
Credit Facility	'
Maximum borrowings available	$260
Line of Credit Facility, Maximum Capacity after Lender Approval	500
Line of Credit Facility, Renewal Term One	'1 year
Line of Credit Facility, Renewal Term Two	'6 months
Line of Credit Facility, Current Borrowing Capacity	257.6
Credit facility | Tier Operating Partnership LP [Member] | Prime rate	'
Credit Facility	'
Interest rate of revolving loans	'prime rate
Credit facility | Tier Operating Partnership LP [Member] | Federal Funds Effective Rate	'
Credit Facility	'
Interest rate of revolving loans	'Federal Funds Effective Rate
Applicable margin (as a percent)	0.50%
Credit facility | Tier Operating Partnership LP [Member] | LIBOR for an interest period of one month	'
Credit Facility	'
Interest rate of revolving loans	'LIBOR for an interest period of one month
Applicable margin (as a percent)	1.00%
Credit facility | Tier Operating Partnership LP [Member] | Base rate	'
Credit Facility	'
Applicable margin (as a percent)	1.35%
Credit facility | Tier Operating Partnership LP [Member] | LIBOR	'
Credit Facility	'
Applicable margin (as a percent)	2.35%
Line of Credit, prior to amendment [Member] | Tier Operating Partnership LP [Member]	'
Credit Facility	'
Maximum borrowings available	340
Maximum increased amount of revolving loans	110
Line of Credit, prior to amendment [Member] | Tier Operating Partnership LP [Member] | Prime rate	'
Credit Facility	'
Interest rate of revolving loans	'prime rate
Line of Credit, prior to amendment [Member] | Tier Operating Partnership LP [Member] | Federal Funds Effective Rate	'
Credit Facility	'
Interest rate of revolving loans	'Federal Funds Effective Rate
Applicable margin (as a percent)	0.50%
Line of Credit, prior to amendment [Member] | Tier Operating Partnership LP [Member] | LIBOR for an interest period of one month	'
Credit Facility	'
Interest rate of revolving loans	'LIBOR for an interest period of one month
Applicable margin (as a percent)	1.00%
Line of Credit, prior to amendment [Member] | Tier Operating Partnership LP [Member] | Base rate	'
Credit Facility	'
Applicable margin (as a percent)	2.00%
Line of Credit, prior to amendment [Member] | Tier Operating Partnership LP [Member] | LIBOR	'
Credit Facility	'
Interest rate of revolving loans	'LIBOR
Applicable margin (as a percent)	3.00%
Revolving loans | Tier Operating Partnership LP [Member]	'
Credit Facility	'
Maximum borrowings available	140
Term loan | Tier Operating Partnership LP [Member]	'
Credit Facility	'
Maximum borrowings available	$200

Notes_Payable_Troubled_Debt_Re

Notes Payable (Troubled Debt Restructuring) (Details) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Debt Disclosure [Abstract]	'	'	'
Gain on troubled debt restructuring	$36.70	$35.60	$38.90
Gain on the basis of both basic and diluted income per share (in dollars per share)	$0.12	$0.12	$0.13

Equity_Details

Equity (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Sep. 04, 2012
In Thousands, except Share data, unless otherwise specified				Behringer Harvard Reit I Services Holdings Llc [Member]
Schedule of Capitalization, Equity [Line Items]	'	'	'	'
Units of limited partnership interest held by third parties (in shares)	432,586	432,586	432,586	'
Stock issued during period in exchange of surrender of non-participating and non-voting convertible preferred stock	'	'	'	10,000
Fair value of preferred stock	$2,700	$2,700	'	$2,700

Equity_Share_Redemption_Detail

Equity (Share Redemption) (Details) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012
			Exceptional redemptions	Exceptional redemptions
Share Redemption Program	'	'	'	'
Number of shares redeemed	'	'	0	879,877
Value of shares redeemed	$4,083	$4,288	'	$4,100

Equity_Stock_Plans_Details

Equity (Stock Plans) (Details) (USD $)	0 Months Ended			12 Months Ended
	Jan. 30, 2014	Jun. 21, 2013	Feb. 14, 2013	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Stock Plans	'	'	'	'	'	'
Options outstanding (in shares)	'	'	'	75,000	97,250	92,875
Weighted average exercise price (in dollars per share)	'	'	'	$6.69	$7.17	$7.77
Stock Issued During Period, Shares, Share-based Compensation, Gross	450,065	'	429,560	'	'	'
Stock Issued during period, Value, Restricted Stock Award (in dollars per share)	$4.20	'	$4.01	'	'	'
Share Based Compensation percentage restrictions lapse on February 14, 2014	'	'	'	25.00%	'	'
Share Based Compensation percentage restrictions lapse on February 14, 2015	'	'	'	25.00%	'	'
Shares Based Compensation percentage restrictions lapse February 14, 2016	'	'	'	25.00%	'	'
Shares Based Compensation percentage restrictions lapse February 14, 2017	'	'	'	25.00%	'	'
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited	'	'	'	6,235	'	'
Restricted Stock Units Issued	'	37,407	'	'	'	'
Percentage of restricted stock units converting on June 21, 2015	'	'	'	50.00%	'	'
Percentage of restricted stock units converting June 21, 2016	'	'	'	50.00%	'	'
Percent of Restricted Stock units converted immediately	'	'	'	50.00%	'	'
Units Issued during period, Value, Restricted Stock Award (in dollars per share)	'	$4.01	'	'	'	'
ShareBasedCompensationPercentageRestrictionsLapseOnJanuary302015	'	'	'	25.00%	'	'
ShareBasedCompensationPercentageRestrictionsLapseonJanuary302016	'	'	'	25.00%	'	'
ShareBasedCompensationPercentageRestrictionsLapseJanuary302017	'	'	'	25.00%	'	'
ShareBasedCompensationPercentageRestrictionsLapseJanuary302018	'	'	'	25.00%	'	'
Stock options	'	'	'	'	'	'
Stock Plans	'	'	'	'	'	'
Exercisable period	'	'	'	'1 year	'	'
Stock options | Maximum	'	'	'	'	'	'
Stock Plans	'	'	'	'	'	'
Term of options	'	'	'	'10 years	'	'
Stock options | Independent members of the board of directors	'	'	'	'	'	'
Stock Plans	'	'	'	'	'	'
Options outstanding (in shares)	'	'	'	75,000	'	'
Weighted average exercise price (in dollars per share)	'	'	'	$6.69	'	'

Equity_Distributions_Details

Equity ( Distributions) (Details) (USD $)	0 Months Ended	3 Months Ended				12 Months Ended
	Nov. 01, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Equity [Abstract]	'	'	'	'	'	'	'	'
Monthly declared distribution rate (in dollars per share)	'	'	'	'	'	'	$0.01	'
Annual distribution rate on common stock (as a percent)	2.40%	'	'	'	'	'	1.00%	'
Share Price, used to calculation annual distribution rate on common stock	$4.20	$10	'	'	'	'	$10	'
Distributions	'	'	'	'	'	'	'	'
Distributions	'	$4,991,000	$7,476,000	$7,830,000	$7,450,000	$5,308,000	$27,747,000	$29,688,000
Common stockholders	'	'	'	'	'	'	'	'
Distributions	'	'	'	'	'	'	'	'
Distributions	'	'	'	'	'	0	'	'
Common stockholders | Cash	'	'	'	'	'	'	'	'
Distributions	'	'	'	'	'	'	'	'
Distributions	'	2,820,000	4,204,000	4,177,000	4,171,000	'	15,372,000	'
Common stockholders | DRP	'	'	'	'	'	'	'	'
Distributions	'	'	'	'	'	'	'	'
Distributions	'	2,161,000	3,261,000	3,275,000	3,268,000	'	11,965,000	'
Preferred stockholders	'	'	'	'	'	'	'	'
Distributions	'	'	'	'	'	'	'	'
Distributions	'	0	0	0	0	'	0	'
Noncontrolling Interests	'	'	'	'	'	'	'	'
Distributions	'	'	'	'	'	'	'	'
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	'	$10,000	$11,000	$378,000	$11,000	$5,308,000	$410,000	$53,000

Related_Party_Transactions_Det

Related Party Transactions (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Related Party Transaction [Line Items]	'		'		'
Business Exit costs	$0		$0		'
General and administrative	17,322,000		15,480,000		10,828,000
Related party transaction, amounts of transaction	37,573,000		52,484,000		69,528,000
Expensed	35,356,000		50,668,000		61,974,000
Costs capitalized to deferred financing fees	0		660,000		6,101,000
Costs capitalized to real estate under development	934,000		106,000		0
Costs capitalized to building and improvements	1,283,000		1,050,000		1,453,000
Payables to related parties	2,034,000		1,398,000		'
BHT Advisors LLC [Member]	'		'		'
Related Party Transaction [Line Items]	'		'		'
Related party transaction expenses for use of tangible assets and license	'		1,500,000		'
Intangible assets	'		1,400,000		'
General and administrative	'		100,000		'
Acquisition fee	934,000	[1]	106,000	[1]	96,000
Amount of debt financing fees	0		660,000		6,101,000
Asset management fees	0		10,484,000		20,081,000
Other fees and reimbursement for services provided	2,426,000		3,766,000		3,822,000
HPT Management	'		'		'
Related Party Transaction [Line Items]	'		'		'
Property management fees	13,191,000		13,931,000		14,263,000
Amount of reimbursement of costs and expenses	$21,022,000		$23,537,000		$25,165,000
[1]	Acquisition fees in 2013 and 2012 relate to the development of Two BriarLake Plaza.

Commitments_and_Contingencies_

Commitments and Contingencies (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013
Commitments for future tenant improvements and leasing commissions	'
Commitments and contingencies	'
Future tenant improvements and leasing commissions	$68.10
Employment Agreements	'
Commitments and contingencies	'
Period of automatic continuation of term of employment	'1 year
Notice period for non-renewal of term prior to the expiration of the initial term	'60 days
Lump sum compensation expense if termination of employment without cause	$5.70

Supplemental_Cash_Flow_Informa2

Supplemental Cash Flow Information (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Supplemental Cash Flow Elements [Abstract]	'	'	'
Interest paid, net of amounts capitalized	$106,946	$118,530	$143,466
Income taxes paid	1,440	1,232	2,311
Non-cash investing activities:	'	'	'
Property and equipment additions in accounts payable and accrued liabilities	25,666	25,751	27,354
Transfer of real estate and lease intangibles through cancellation of debt	52,361	32,700	65,870
Transfer of investment through cancellation of debt	0	4,259	0
Sale of real estate and lease intangibles to Unconsolidated Joint Venture	60,660	0	0
Non-cash financing activities:	'	'	'
Common stock issued in distribution reinvestment plan	0	13,066	13,297
Mortgage notes assumed by the Company	0	0	2,091
Accrual for distributions declared	0	0	2,481
Assumption of debt by unconsolidated joint venture	82,291	0	0
Mortgage notes assumed by purchaser	24,250	73,119	28,754
Cancellation of debt through transfer of real estate	57,934	59,251	103,737
Cancellation of debt through discounted payoff	9,530	0	0
Issuance of Series A Convertible Preferred Stock	0	2,700	0
Financing costs in accrued liabilities	$65	$0	$0

Discontinued_Operations_and_Re2

Discontinued Operations and Real Estate Held for Sale (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
	property	property	property
Discontinued Operations and Disposal Groups [Abstract]	'	'	'
Disposal Group Number of Properties Disposed	11	5	9
Results of operations reclassified as discontinued operations	'	'	'
Rental revenue	$62,988	$103,105	$128,229
Expenses	'	'	'
Property operating expenses	18,125	33,178	43,291
Interest expense	6,994	18,979	43,348
Real estate taxes	10,341	14,909	20,436
Property and asset management fees	1,657	5,384	8,907
Asset impairment losses	4,879	13,514	65,710
Depreciation and amortization	26,265	41,939	56,032
Total expenses	68,261	127,903	237,724
Provision for income taxes	-1	-7	-1
Loss on early extinguishment of debt	-1,416	0	0
Gain on troubled debt restructuring	36,726	35,421	37,903
Interest and other income (expense)	-1	224	2,283
Gain (loss) from discontinued operations	$30,035	$10,840	($69,310)

Discontinued_Operations_and_Re3

Discontinued Operations and Real Estate Held for Sale (Details 2) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Thousands, unless otherwise specified	property
Discontinued Operations and Disposal Groups [Abstract]	'	'
Disposal Group Number of Proeprties Held for Sale	0	'
Assets held for sale	'	'
Land	'	$1,384
Buildings and improvements, net	'	6,592
Accounts receivable and other assets, net	'	1,884
Lease intangibles, net	'	858
Assets associated with real estate held for sale	0	10,718
Liabilities held for sale	'	'
Notes payable	'	16,400
Other liabilities	'	1,983
Obligations associated with real estate held for sale	$0	$18,383

Quarterly_Results_Unaudited_Qu1

Quarterly Results (Unaudited) Quarterly Results (Unaudited) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Share data, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Quarterly Financial Information Disclosure [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Rental revenue	$84,830	$86,192	$87,196	$86,336	$88,645	$89,060	$87,865	$86,959	$344,554	$352,529	$368,007
Loss from continuing operations before gain on sale or transfer of assets	-1,410	-24,669	-21,887	-22,624	-91,790	-24,845	-43,378	-31,401	-70,590	-191,414	-130,651
Income from discontinued operations	26,435	31,817	1,719	10,500	24,982	-6,451	9,240	3,199	70,471	30,970	-52,609
Gain on sale or transfer of assets	0	0	0	16,102	7,721	0	0	362	16,102	8,083	1,385
Net income (loss)	25,025	7,148	-20,168	3,978	-59,087	-31,296	-34,138	-27,840	15,983	-152,361	-181,875
Noncontrolling interests in continuing operations	3	36	30	11	122	37	63	46	80	268	312
Noncontrolling interests in discontinued operations	-24	-465	1	-23	-6	32	-29	-5	-511	-8	113
Net income (loss) attributable to common stockholders	$25,004	$6,719	($20,137)	$3,966	($58,971)	($31,227)	($34,104)	($27,799)	$15,552	($152,101)	($181,450)
Basic and diluted weighted average common shares outstanding	299,192,000	299,192,000	299,192,000	299,192,000	299,102,000	298,618,000	298,113,000	297,646,000	299,191,861	298,372,324	296,351,253
Basic and diluted income (loss) per common share	$0.08	$0.02	($0.07)	$0.01	($0.20)	($0.10)	($0.11)	($0.09)	$0.05	($0.51)	($0.61)

Schedule_II_Details

Schedule II (Details) (Allowance for Doubtful Accounts [Member], USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for Doubtful Accounts [Member]	'	'	'
Movement in Valuation Allowances and Reserves [Roll Forward]	'	'	'
Balance at beginning of year	$1,263	$1,459	$3,198
Charged to Costs and Expenses	418	467	847
Charged to Other Accounts	0	0	0
Writeoffs, Net of Recoveries	-392	-663	-2,586
Balance at end of year	$1,289	$1,263	$1,459

Schedule_III_Details

Schedule III (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Estimated useful life	'25 years		'	'	'
Aggregate cost for federal income tax purposes	$2,900,000,000		'	'	'
Encumbrances	1,490,367,000		'	'	'
Initial cost of land	343,848,000		'	'	'
Initial cost of buildings and improvements	2,261,558,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	18,754,000	[1]	'	'	'
Gross amount at which carried at close of period	2,624,160,000	[2]	3,222,358,000	3,597,339,000	3,894,478,000
Accumulated depreciation	586,585,000		593,389,000	617,402,000	526,197,000
Lawson Commons St Paul Mn	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	54,734,000		'	'	'
Initial cost of land	2,021,000		'	'	'
Initial cost of buildings and improvements	75,881,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	3,908,000	[1]	'	'	'
Gross amount at which carried at close of period	81,810,000	[2]	'	'	'
Accumulated depreciation	26,514,000		'	'	'
Buena Vista Plaza Burbank Ca	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	20,976,000		'	'	'
Initial cost of land	3,806,000		'	'	'
Initial cost of buildings and improvements	28,368,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	435,000	[1]	'	'	'
Gross amount at which carried at close of period	32,609,000	[2]	'	'	'
Accumulated depreciation	9,613,000		'	'	'
1325 G Street Washington Dc	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	100,000,000		'	'	'
Initial cost of land	71,313,000		'	'	'
Initial cost of buildings and improvements	60,681,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	7,154,000	[1]	'	'	'
Gross amount at which carried at close of period	139,148,000	[2]	'	'	'
Accumulated depreciation	22,019,000		'	'	'
Woodcrest Corporate Center Cherry Hill Nj	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	48,268,000		'	'	'
Initial cost of land	5,927,000		'	'	'
Initial cost of buildings and improvements	49,977,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	5,010,000	[1]	'	'	'
Gross amount at which carried at close of period	60,914,000	[2]	'	'	'
Accumulated depreciation	18,130,000		'	'	'
Burnett Plaza Ft Worth Tx	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	103,995,000		'	'	'
Initial cost of land	6,239,000		'	'	'
Initial cost of buildings and improvements	157,171,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	19,062,000	[1]	'	'	'
Gross amount at which carried at close of period	182,472,000	[2]	'	'	'
Accumulated depreciation	53,401,000		'	'	'
222 South Riverside Plaza Chicago Il	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	196,247,000		'	'	'
Initial cost of land	29,787,000		'	'	'
Initial cost of buildings and improvements	190,111,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	25,225,000	[1]	'	'	'
Gross amount at which carried at close of period	245,123,000	[2]	'	'	'
Accumulated depreciation	65,741,000		'	'	'
The Terrace Office Park Austin Tx	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	127,440,000		'	'	'
Initial cost of land	17,330,000		'	'	'
Initial cost of buildings and improvements	124,551,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	10,804,000	[1]	'	'	'
Gross amount at which carried at close of period	152,685,000	[2]	'	'	'
Accumulated depreciation	39,900,000		'	'	'
Bank of America Plaza Charlotte Nc	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	150,000,000		'	'	'
Initial cost of land	26,656,000		'	'	'
Initial cost of buildings and improvements	185,215,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	20,031,000	[1]	'	'	'
Gross amount at which carried at close of period	231,902,000	[2]	'	'	'
Accumulated depreciation	55,915,000		'	'	'
Three Parkway Philadelphia Pa	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	65,292,000		'	'	'
Initial cost of land	7,905,000		'	'	'
Initial cost of buildings and improvements	69,033,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	10,105,000	[1]	'	'	'
Gross amount at which carried at close of period	87,043,000	[2]	'	'	'
Accumulated depreciation	22,275,000		'	'	'
Fifth Third Center Cleveland Cleveland Oh	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	48,000,000		'	'	'
Initial cost of land	1,424,000		'	'	'
Initial cost of buildings and improvements	52,075,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	4,829,000	[1]	'	'	'
Gross amount at which carried at close of period	58,328,000	[2]	'	'	'
Accumulated depreciation	16,109,000		'	'	'
One & Two Eldridge Place Houston Tx	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	73,098,000		'	'	'
Initial cost of land	6,605,000		'	'	'
Initial cost of buildings and improvements	89,506,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	15,855,000	[1]	'	'	'
Gross amount at which carried at close of period	111,966,000	[2]	'	'	'
Accumulated depreciation	29,120,000		'	'	'
250 W Pratt Baltimore Md	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	33,009,000		'	'	'
Initial cost of land	6,700,000		'	'	'
Initial cost of buildings and improvements	39,861,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	9,649,000	[1]	'	'	'
Gross amount at which carried at close of period	56,210,000	[2]	'	'	'
Accumulated depreciation	15,810,000		'	'	'
Centreport Office Center Ft Worth Tx	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[3]	'	'	'
Initial cost of land	3,175,000		'	'	'
Initial cost of buildings and improvements	12,917,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-6,405,000	[1]	'	'	'
Gross amount at which carried at close of period	9,687,000	[2]	'	'	'
Accumulated depreciation	2,368,000		'	'	'
FOUR40 Chicago Il	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[3]	'	'	'
Initial cost of land	23,285,000		'	'	'
Initial cost of buildings and improvements	265,099,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-96,812,000	[1]	'	'	'
Gross amount at which carried at close of period	191,572,000	[2]	'	'	'
Accumulated depreciation	14,670,000		'	'	'
111 Woodcrest Cherry Hill Nj	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[3]	'	'	'
Initial cost of land	1,000,000		'	'	'
Initial cost of buildings and improvements	5,417,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-930,000	[1]	'	'	'
Gross amount at which carried at close of period	5,487,000	[2]	'	'	'
Accumulated depreciation	1,196,000		'	'	'
1650 Arch Street Philadelphia Pa	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[3]	'	'	'
Initial cost of land	24,000,000		'	'	'
Initial cost of buildings and improvements	60,825,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-24,438,000	[1]	'	'	'
Gross amount at which carried at close of period	60,387,000	[2]	'	'	'
Accumulated depreciation	11,790,000		'	'	'
United Plaza Philadelphia Pa	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	59,898,000		'	'	'
Initial cost of land	23,736,000		'	'	'
Initial cost of buildings and improvements	90,001,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	10,093,000	[1]	'	'	'
Gross amount at which carried at close of period	123,830,000	[2]	'	'	'
Accumulated depreciation	23,865,000		'	'	'
One Oxmoor Place Louisville Ky	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	92,535,000	[4]	'	'	'
Initial cost of land	2,851,000		'	'	'
Initial cost of buildings and improvements	17,614,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	1,134,000	[1]	'	'	'
Gross amount at which carried at close of period	21,599,000	[2]	'	'	'
Accumulated depreciation	4,837,000		'	'	'
Hurstbourne Place Louisville Ky	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[4]	'	'	'
Initial cost of land	4,587,000		'	'	'
Initial cost of buildings and improvements	30,203,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-13,574,000	[1]	'	'	'
Gross amount at which carried at close of period	21,216,000	[2]	'	'	'
Accumulated depreciation	5,561,000		'	'	'
Hurstbourne Park Louisville Ky	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[4]	'	'	'
Initial cost of land	2,297,000		'	'	'
Initial cost of buildings and improvements	12,728,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-3,277,000	[1]	'	'	'
Gross amount at which carried at close of period	11,748,000	[2]	'	'	'
Accumulated depreciation	2,862,000		'	'	'
Hurstbourne Plaza Louisville Ky	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[4],[5]	'	'	'
Initial cost of land	4,000,000	[5]	'	'	'
Initial cost of buildings and improvements	10,054,000	[5]	'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	146,000	[1],[5]	'	'	'
Gross amount at which carried at close of period	14,200,000	[2],[5]	'	'	'
Accumulated depreciation	9,831,000	[5]	'	'	'
Forum Office Park Louisville Ky	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[4]	'	'	'
Initial cost of land	6,811,000		'	'	'
Initial cost of buildings and improvements	32,548,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	8,478,000	[1]	'	'	'
Gross amount at which carried at close of period	47,837,000	[2]	'	'	'
Accumulated depreciation	9,005,000		'	'	'
Lakeview Louisville Ky	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[4]	'	'	'
Initial cost of land	1,468,000		'	'	'
Initial cost of buildings and improvements	8,574,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-3,697,000	[1]	'	'	'
Gross amount at which carried at close of period	6,345,000	[2]	'	'	'
Accumulated depreciation	661,000		'	'	'
Steeplechase Place Louisville Ky	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[4]	'	'	'
Initial cost of land	1,766,000		'	'	'
Initial cost of buildings and improvements	7,424,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	1,322,000	[1]	'	'	'
Gross amount at which carried at close of period	10,512,000	[2]	'	'	'
Accumulated depreciation	1,946,000		'	'	'
Hunnington Louisville Ky	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[4]	'	'	'
Initial cost of land	978,000		'	'	'
Initial cost of buildings and improvements	5,507,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-667,000	[1]	'	'	'
Gross amount at which carried at close of period	5,818,000	[2]	'	'	'
Accumulated depreciation	1,234,000		'	'	'
City Hall Plaza Manchester Nh	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[4]	'	'	'
Initial cost of land	2,516,000		'	'	'
Initial cost of buildings and improvements	27,509,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-16,588,000	[1]	'	'	'
Gross amount at which carried at close of period	13,437,000	[2]	'	'	'
Accumulated depreciation	1,038,000		'	'	'
One & Two Chestnut Place Worcester Ma	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[4]	'	'	'
Initial cost of land	2,903,000		'	'	'
Initial cost of buildings and improvements	15,715,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-974,000	[1]	'	'	'
Gross amount at which carried at close of period	17,644,000	[2]	'	'	'
Accumulated depreciation	3,581,000		'	'	'
Fifth Third Center Columbus Columbus Oh	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	50,348,000		'	'	'
Initial cost of land	3,500,000		'	'	'
Initial cost of buildings and improvements	54,242,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	1,885,000	[1]	'	'	'
Gross amount at which carried at close of period	59,627,000	[2]	'	'	'
Accumulated depreciation	14,028,000		'	'	'
5104 Eisenhower Boulevard Tampa Fl	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[3]	'	'	'
Initial cost of land	2,602,000		'	'	'
Initial cost of buildings and improvements	25,054,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	2,851,000	[1]	'	'	'
Gross amount at which carried at close of period	30,507,000	[2]	'	'	'
Accumulated depreciation	7,322,000		'	'	'
Plaza at MetroCenter Nashville Tn	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	23,969,000		'	'	'
Initial cost of land	3,341,000		'	'	'
Initial cost of buildings and improvements	35,333,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	-7,102,000	[1]	'	'	'
Gross amount at which carried at close of period	31,572,000	[2]	'	'	'
Accumulated depreciation	3,513,000		'	'	'
Loop Central Houston Tx	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	43,314,000		'	'	'
Initial cost of land	11,653,000		'	'	'
Initial cost of buildings and improvements	86,587,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	10,872,000	[1]	'	'	'
Gross amount at which carried at close of period	109,112,000	[2]	'	'	'
Accumulated depreciation	26,457,000		'	'	'
801 Thompson Rockville Md	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0		'	'	'
Initial cost of land	3,200,000		'	'	'
Initial cost of buildings and improvements	10,578,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	108,000	[1]	'	'	'
Gross amount at which carried at close of period	13,886,000	[2]	'	'	'
Accumulated depreciation	2,583,000		'	'	'
500 E Pratt Baltimore Md	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	58,800,000		'	'	'
Initial cost of land	0		'	'	'
Initial cost of buildings and improvements	66,390,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	1,712,000	[1]	'	'	'
Gross amount at which carried at close of period	68,102,000	[2]	'	'	'
Accumulated depreciation	16,700,000		'	'	'
One BriarLake Plaza Houston Tx	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	97,229,000		'	'	'
Initial cost of land	9,602,000		'	'	'
Initial cost of buildings and improvements	119,660,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	9,695,000	[1]	'	'	'
Gross amount at which carried at close of period	138,957,000	[2]	'	'	'
Accumulated depreciation	27,759,000		'	'	'
Two BriarLake Plaza Houston Tx	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	16,786,000		'	'	'
Initial cost of land	2,446,000		'	'	'
Initial cost of buildings and improvements	48,859,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	0	[1]	'	'	'
Gross amount at which carried at close of period	51,305,000	[2]	'	'	'
Accumulated depreciation	0		'	'	'
Colorado Building Washington Dc	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	26,491,000		'	'	'
Initial cost of land	13,328,000		'	'	'
Initial cost of buildings and improvements	28,109,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	2,102,000	[1]	'	'	'
Gross amount at which carried at close of period	43,539,000	[2]	'	'	'
Accumulated depreciation	7,582,000		'	'	'
Three Eldridge Place Houston Tx	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	0	[3]	'	'	'
Initial cost of land	3,090,000		'	'	'
Initial cost of buildings and improvements	62,181,000		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	10,753,000	[1]	'	'	'
Gross amount at which carried at close of period	76,024,000	[2]	'	'	'
Accumulated depreciation	11,649,000		'	'	'
unamortized discount	'		'	'	'
Real Estate and Accumulated Depreciation [Line Items]	'		'	'	'
Encumbrances	-62,000		'	'	'
Initial cost of land	0		'	'	'
Initial cost of buildings and improvements	0		'	'	'
SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Improvements	0	[1]	'	'	'
Gross amount at which carried at close of period	0	[2]	'	'	'
Accumulated depreciation	$0		'	'	'
[1]	Includes adjustments to basis, such as impairment losses.
[2]	The aggregate cost for federal income tax purposes is approximately $2.9 billion.
[3]	FOUR40, 1650 Arch Street, 5104 Eisenhower Blvd., Three Eldridge Place, 111 Woodcrest, and Centreport Office Center are each held as collateral for our credit facility which has no borrowings outstanding at December 31, 2013.
[4]	One Oxmoor Place, Hurstborne Place, Hurstborne Park, Hurstborne Plaza, Forum Office Park, Lakeview, Steeplechase Place, Hunnington, City Hall Plaza, and One & Two Chestnut Place are each held as collateral for this note payable.
[5]	Hurstborne Plaza is a retail shopping center. All of our other properties are office buildings.

Schedule_III_Details_2_Reconci

Schedule III (Details 2) (Reconciliation) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward]	'		'	'
Balance at beginning of year	$3,222,358		$3,597,339	$3,894,478
Acquisitions/improvements	98,519		76,304	68,699
Assets disposed/written-off	-696,717		-451,285	-365,838
Balance at end of the year	2,624,160	[1]	3,222,358	3,597,339
Reconciliation of Real Estate Accumulated Depreciation [Roll Forward]	'		'	'
Balance at beginning of year	593,389		617,402	526,197
Depreciation expense	128,599		141,046	150,338
Assets disposed/written-off	135,403		165,059	59,133
Balance at end of the year	$586,585		$593,389	$617,402
[1]	The aggregate cost for federal income tax purposes is approximately $2.9 billion.