Healthcare Trust of America (HTA) 10-Q 6 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	1-May-15
Entity Information [Line Items]
Entity Registrant Name	HEALTHCARE TRUST OF AMERICA, INC.
Entity Central Index Key	1360604
Document Type	10-Q
Document Period End Date	31-Mar-15
Amendment Flag	FALSE
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	-19
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		125,199,971
Healthcare Trust of America Holdings, LP (HTALP)
Entity Information [Line Items]
Entity Registrant Name	Healthcare Trust of America Holdings, LP
Entity Central Index Key	1495491
Document Type	10-Q
Document Period End Date	31-Mar-15
Amendment Flag	FALSE
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	-19
Entity Filer Category	Non-accelerated Filer

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Real estate investments:
Land	$288,503	$287,755
Building and improvements	2,699,979	2,665,777
Lease intangibles	420,094	419,288
Real estate investments, gross	3,408,576	3,372,820
Accumulated depreciation and amortization	-583,166	-549,976
Real estate investments, net ($79,163 and $80,419 from consolidated VIEs, see Note 2)	2,825,410	2,822,844
Cash and cash equivalents	13,517	10,413
Restricted cash and escrow deposits	21,120	20,799
Receivables and other assets, net	143,808	144,106
Other intangibles, net	45,231	43,488
Total assets	3,049,086	3,041,650
Liabilities:
Debt	1,458,598	1,412,461
Accounts payable and accrued liabilities	84,823	101,042
Derivative financial instruments - interest rate swaps	3,378	2,888
Security deposits, prepaid rent and other liabilities	38,947	32,687
Intangible liabilities, net	12,464	12,425
Total liabilities	1,598,210	1,561,503
Commitments and contingencies
Redeemable noncontrolling interests	3,797	3,726
Equity/Partners' Capital:
Preferred stock, $0.01 par value; 200,000,000 shares authorized; none issued and outstanding	0	0
Class A common stock, $0.01 par value; 1,000,000,000 shares authorized; 125,203,393 and 125,087,268 shares issued and outstanding as of March 31, 2015 and December 31, 2014, respectively	1,252	1,251
Additional paid-in capital	2,282,553	2,281,932
Cumulative dividends in excess of earnings	-865,549	-836,044
Total stockholders’ equity	1,418,256	1,447,139
Noncontrolling interests	28,823	29,282
Total equity	1,447,079	1,476,421
Total liabilities and equity/partners' capital	3,049,086	3,041,650
Healthcare Trust of America Holdings, LP (HTALP)
Real estate investments:
Land	288,503	287,755
Building and improvements	2,699,979	2,665,777
Lease intangibles	420,094	419,288
Real estate investments, gross	3,408,576	3,372,820
Accumulated depreciation and amortization	-583,166	-549,976
Real estate investments, net ($79,163 and $80,419 from consolidated VIEs, see Note 2)	2,825,410	2,822,844
Cash and cash equivalents	13,517	10,413
Restricted cash and escrow deposits	21,120	20,799
Receivables and other assets, net	143,808	144,106
Other intangibles, net	45,231	43,488
Total assets	3,049,086	3,041,650
Liabilities:
Debt	1,458,598	1,412,461
Accounts payable and accrued liabilities	84,823	101,042
Derivative financial instruments - interest rate swaps	3,378	2,888
Security deposits, prepaid rent and other liabilities	38,947	32,687
Intangible liabilities, net	12,464	12,425
Total liabilities	1,598,210	1,561,503
Commitments and contingencies
Redeemable noncontrolling interests	3,797	3,726
Equity/Partners' Capital:
Limited partners’ capital, 2,154,942 units issued and outstanding as of March 31, 2015 and December 31, 2014	28,553	29,012
General partners’ capital, 125,203,393 and 125,087,268 units issued and outstanding as of March 31, 2015 and December 31, 2014, respectively	1,418,526	1,447,409
Total partners’ capital	1,447,079	1,476,421
Total liabilities and equity/partners' capital	$3,049,086	$3,041,650

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, except Share data, unless otherwise specified
Equity:
Preferred stock, par value (usd per share)	$0.01	$0.01
Preferred stock, shares authorized	200,000,000	200,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Class A Common Stock
Equity:
Common stock, par value (usd per share)	$0.01	$0.01
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	125,203,393	125,087,268
Common stock, shares outstanding	125,203,393	125,087,268
Variable Interest Entity, Primary Beneficiary
Real estate investments, VIE	$79,163	$80,419
Healthcare Trust of America Holdings, LP (HTALP)
Partners’ Capital:
Limited partner's capital, units issued	2,154,942	2,154,942
Limited partner's capital, units outstanding	2,154,942	2,154,942
General partner's capital, units issued	125,203,393	125,087,268
General partner's capital, units outstanding	125,203,393	125,087,268
Healthcare Trust of America Holdings, LP (HTALP) | Variable Interest Entity, Primary Beneficiary
Real estate investments, VIE	$79,163	$80,419

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (Unaudited) (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2015		Mar. 31, 2014
Revenues:
Rental income	$98,452		$90,452
Interest and other operating income	68		852
Total revenues	98,520		91,304
Expenses:
Rental	30,697		29,589
General and administrative	6,575		6,299
Acquisition-related	1,357		976
Depreciation and amortization	36,595		34,942
Total expenses	75,224		71,806
Income before other income (expense)	23,296		19,498
Interest expense:
Interest related to derivative financial instruments	-555		-1,345
Net loss on change in fair value of derivative financial instruments	-2,010		-841
Total interest related to derivative financial instruments, including net change in fair value of derivative financial instruments	-2,565		-2,186
Interest related to debt	-13,804		-11,904
Other income	15		26
Net income	6,942		5,434
Net income attributable to noncontrolling interests	-138	[1]	-142	[1]
Net income attributable to common stockholders/unitholders	6,804		5,292
Earnings per common share/unit - basic
Net income attributable to common stockholders/unitholders (usd per share)	$0.05		$0.04	[2]
Earnings per common share/unit - diluted:
Net income attributable to common stockholders/unitholders (usd per share)	$0.05		$0.04	[2]
Weighted average number of common shares/units outstanding:
Basic (in shares/units)	125,175		118,644	[2]
Diluted (in shares/units)	127,105		119,912	[2]
Dividends declared per common share/unit (usd per share)	$0.29		$0.29	[2]
Healthcare Trust of America Holdings, LP (HTALP)
Revenues:
Rental income	98,452		90,452
Interest and other operating income	68		852
Total revenues	98,520		91,304
Expenses:
Rental	30,697		29,589
General and administrative	6,575		6,299
Acquisition-related	1,357		976
Depreciation and amortization	36,595		34,942
Total expenses	75,224		71,806
Income before other income (expense)	23,296		19,498
Interest expense:
Interest related to derivative financial instruments	-555		-1,345
Net loss on change in fair value of derivative financial instruments	-2,010		-841
Total interest related to derivative financial instruments, including net change in fair value of derivative financial instruments	-2,565		-2,186
Interest related to debt	-13,804		-11,904
Other income	15		26
Net income	6,942		5,434
Net income attributable to noncontrolling interests	-33		-38
Net income attributable to common stockholders/unitholders	$6,909		$5,396
Earnings per common share/unit - basic
Net income attributable to common stockholders/unitholders (usd per share)	$0.05		$0.04	[2]
Earnings per common share/unit - diluted:
Net income attributable to common stockholders/unitholders (usd per share)	$0.05		$0.04	[2]
Weighted average number of common shares/units outstanding:
Basic (in shares/units)	126,330		120,170	[2]
Diluted (in shares/units)	126,330		120,170	[2]
Dividends declared per common share/unit (usd per share)	$0.29		$0.29	[2]
[1]	Includes amounts attributable to redeemable noncontrolling interests.
[2]	For the three months ended March 31, 2014, amounts have been adjusted retroactively to reflect a 1-for-2 stock split effected December 15, 2014.

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Operations (Parenthetical) (Unaudited)	0 Months Ended
	Dec. 15, 2014
Reverse stock split conversion ratio	0.5
Healthcare Trust of America Holdings, LP (HTALP)
Reverse stock split conversion ratio	0.5

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Equity (Unaudited) (USD $)		Total	Class A Common Stock	Common Stock		Additional Paid-In Capital		Cumulative Dividends in Excess of Earnings	Total Stockholders’ Equity	Noncontrolling Interest
In Thousands, except Share data, unless otherwise specified		USD ($)		Class A Common Stock		USD ($)		USD ($)	USD ($)	USD ($)
				USD ($)
Beginning balance at Dec. 31, 2013		$1,399,749		$1,184	[1]	$2,128,082	[1]	($742,060)	$1,387,206	$12,543
Beginning balance, shares at Dec. 31, 2013	[1]			118,440,000
Increase (Decrease) in Stockholders' Equity
Share-based award transactions, net (in shares)	[1]			235,000
Share-based award transactions, net		1,388		3	[1]	1,385	[1]		1,388
Repurchase and cancellation of common stock (in shares)	[1]			-29,000
Repurchase and cancellation of common stock		-572		-1	[1]	-571	[1]		-572
Dividends		-34,459						-34,110	-34,110	-349
Net income		5,390						5,292	5,292	98
Ending balance at Mar. 31, 2014		1,371,496		1,186	[1]	2,128,896	[1]	-770,878	1,359,204	12,292
Ending balance, shares at Mar. 31, 2014	[1]			118,646,000
Beginning balance at Dec. 31, 2014		1,476,421		1,251		2,281,932		-836,044	1,447,139	29,282
Beginning balance, shares at Dec. 31, 2014			125,087,268	125,087,000
Increase (Decrease) in Stockholders' Equity
Share-based award transactions, net (in shares)				164,000
Share-based award transactions, net		1,914		1		1,913			1,914
Repurchase and cancellation of common stock (in shares)				-48,000
Repurchase and cancellation of common stock		-1,292				-1,292			-1,292
Dividends		-36,873						-36,309	-36,309	-564
Net income		6,909						6,804	6,804	105
Ending balance at Mar. 31, 2015		$1,447,079		$1,252		$2,282,553		($865,549)	$1,418,256	$28,823
Ending balance, shares at Mar. 31, 2015			125,203,393	125,203,000
[1]	For the three months ended March 31, 2014, amounts have been adjusted retroactively to reflect a 1-for-2 reverse stock split effected December 15, 2014.

Condensed_Consolidated_Stateme3

Condensed Consolidated Statements of Equity (Parenthetical) (Unaudited)	0 Months Ended
	Dec. 15, 2014
Statement of Stockholders' Equity [Abstract]
Reverse stock split conversion ratio	0.5

Condensed_Consolidated_Stateme4

Condensed Consolidated Statements of Changes In Partners' Capital (Unaudited) (USD $)		Total	Healthcare Trust of America Holdings, LP (HTALP)	Healthcare Trust of America Holdings, LP (HTALP)	Healthcare Trust of America Holdings, LP (HTALP)
In Thousands, unless otherwise specified				General Partner	Limited Partner
Balance as of beginning of period at Dec. 31, 2013			$1,401,294	$1,387,476	$13,818
Balance as of beginning of period (in units) at Dec. 31, 2013	[1]			118,440	1,527
Increase (Decrease) in Partners' Capital [Roll Forward]
Share-based award transactions, net (in units)	[1]			235
Share-based award transactions, net			1,388	1,388
Redemptions of general partner units (in units)	[1]			-29
Redemptions of general partner units			-572	-572
Distributions			-34,482	-34,110	-372
Net income		5,292	5,396	5,292	104
Balance as of end of period at Mar. 31, 2014			1,373,024	1,359,474	13,550
Balance as of end of period (in units) at Mar. 31, 2014	[1]			118,646	1,527
Balance as of beginning of period at Dec. 31, 2014			1,476,421	1,447,409	29,012
Balance as of beginning of period (in units) at Dec. 31, 2014				125,087	2,155
Increase (Decrease) in Partners' Capital [Roll Forward]
Share-based award transactions, net (in units)				164
Share-based award transactions, net			1,914	1,914
Redemptions of general partner units (in units)				-48
Redemptions of general partner units			-1,292	-1,292
Distributions			-36,873	-36,309	-564
Net income		6,804	6,909	6,804	105
Balance as of end of period at Mar. 31, 2015			$1,447,079	$1,418,526	$28,553
Balance as of end of period (in units) at Mar. 31, 2015				125,203	2,155
[1]	For the three months ended March 31, 2014, amounts have been adjusted retroactively to reflect a 1-for-2 reverse stock split effected December 15, 2014.

Condensed_Consolidated_Stateme5

Condensed Consolidated Statements of Changes In Partners' Capital (Parenthetical) (Unaudited)	0 Months Ended
	Dec. 15, 2014
Reverse stock split conversion ratio	0.5
Healthcare Trust of America Holdings, LP (HTALP)
Reverse stock split conversion ratio	0.5

Condensed_Consolidated_Stateme6

Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities:
Net income	$6,942	$5,434
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other	35,788	34,111
Share-based compensation expense	1,914	1,388
Bad debt expense	146	99
Change in fair value of derivative financial instruments	2,010	841
Changes in operating assets and liabilities:
Receivables and other assets, net	-723	-1,739
Accounts payable and accrued liabilities	-13,172	-4,168
Security deposits, prepaid rent and other liabilities	4,290	-2,517
Net cash provided by operating activities	37,195	33,449
Cash flows from investing activities:
Acquisition of real estate operating properties	-35,300	0
Capital expenditures	-6,524	-5,570
Restricted cash, escrow deposits and other assets	-321	-396
Net cash used in investing activities	-42,145	-5,966
Cash flows from financing activities:
Borrowings on unsecured revolving credit facility	82,000	30,000
Payments on unsecured revolving credit facility	-81,000	-10,000
Borrowings on unsecured term loans	65,000	0
Payments on secured real estate term loan and mortgage loans	-19,960	-1,901
Deferred financing costs	-31	-1,077
Security deposits	-17	247
Repurchase and cancellation of common stock	-1,292	-572
Dividends	-36,275	-34,052
Payment on earnout liability	0	-375
Distributions to noncontrolling interest of limited partners	-371	-475
Net cash provided by (used in) financing activities	8,054	-18,205
Net change in cash and cash equivalents	3,104	9,278
Cash and cash equivalents - beginning of period	10,413	18,081
Cash and cash equivalents - end of period	13,517	27,359
Healthcare Trust of America Holdings, LP (HTALP)
Cash flows from operating activities:
Net income	6,942	5,434
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other	35,788	34,111
Share-based compensation expense	1,914	1,388
Bad debt expense	146	99
Change in fair value of derivative financial instruments	2,010	841
Changes in operating assets and liabilities:
Receivables and other assets, net	-723	-1,739
Accounts payable and accrued liabilities	-13,172	-4,168
Security deposits, prepaid rent and other liabilities	4,290	-2,517
Net cash provided by operating activities	37,195	33,449
Cash flows from investing activities:
Acquisition of real estate operating properties	-35,300	0
Capital expenditures	-6,524	-5,570
Restricted cash, escrow deposits and other assets	-321	-396
Net cash used in investing activities	-42,145	-5,966
Cash flows from financing activities:
Borrowings on unsecured revolving credit facility	82,000	30,000
Payments on unsecured revolving credit facility	-81,000	-10,000
Borrowings on unsecured term loans	65,000	0
Payments on secured real estate term loan and mortgage loans	-19,960	-1,901
Deferred financing costs	-31	-1,077
Security deposits	-17	247
Repurchase and cancellation of general partner units	-1,292	-572
Distributions to general partner	-36,275	-34,052
Payment on earnout liability	0	-375
Distributions to limited partners and redeemable noncontrolling interests	-371	-475
Net cash provided by (used in) financing activities	8,054	-18,205
Net change in cash and cash equivalents	3,104	9,278
Cash and cash equivalents - beginning of period	10,413	18,081
Cash and cash equivalents - end of period	$13,517	$27,359

Organization_and_Description_o

Organization and Description of Business	3 Months Ended
	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Description of Business	Organization and Description of Business
	HTA, a Maryland corporation, and HTALP, a Delaware limited partnership, were incorporated or formed, as applicable, on April 20, 2006. HTA operates as a REIT and is the general partner of HTALP, which is the operating partnership. As of March 31, 2015, HTA owned a 98.5% partnership interest and other limited partners, including some of HTA’s directors, executive officers and their affiliates, owned the remaining partnership interest (including the LTIP units) in HTALP. As the sole general partner of HTALP, HTA has the full, exclusive and complete responsibility for HTALP’s day-to-day management and control. HTA operates in an umbrella partnership REIT structure in which HTALP and its subsidiaries hold substantially all of the assets. HTA’s only material asset is its ownership of partnership interests of HTALP. As a result, HTA does not conduct business itself, other than acting as the sole general partner of HTALP, issuing public equity from time to time and guaranteeing certain debts of HTALP. HTALP conducts the operations of the business and issues publicly-traded debt, but has no publicly-traded equity.
	HTA is one of the largest publicly-traded REITs focused on medical office buildings (“MOBs”) in the United States (“U.S.”) based on gross leaseable area (“GLA”). We are primarily focused on acquiring, owning and operating high quality MOBs that are predominantly located on the campuses of, or aligned with, nationally or regionally recognized healthcare systems. In addition, we have strong industry relationships, a stable and diversified tenant mix and an extensive and active acquisition network. Our primary objective is to maximize stockholder value with disciplined growth through strategic investments that provide an attractive risk-adjusted return for our stockholders by consistently increasing our cash flow. In pursuing this objective, we (i) seek internal growth through proactive asset management, leasing and property management oversight, (ii) target mid-sized acquisitions of MOBs in markets with dominant healthcare systems, and with attractive demographics that complement our existing portfolio, and (iii) actively manage our balance sheet to maintain flexibility with conservative leverage. HTA has qualified to be taxed as a REIT for federal income tax purposes and intends to continue to be taxed as a REIT.
	We invest primarily in high quality MOBs in our target markets, and have acquired MOBs and other facilities that serve the healthcare industry with an aggregate purchase price of $3.4 billion through March 31, 2015.
	Effective December 15, 2014, HTA completed a reverse stock split (the “Reverse Stock Split”) of its common stock. As a result of the Reverse Stock Split, every two issued and outstanding shares of common stock were converted into one share of common stock. HTA’s par value and shares authorized remained unchanged. Concurrently with the Reverse Stock Split, HTALP effected a corresponding Reverse Stock Split of its outstanding units of limited partnership interests. The weighted average number of shares/units and per share/unit amounts for the three months ended March 31, 2014 have been adjusted retroactively to reflect the Reverse Stock Split.
	Our principal executive office is located at 16435 North Scottsdale Road, Suite 320, Scottsdale, Arizona, 85254.

Summary_of_Significant_Account

Summary of Significant Accounting Policies	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting Policies
	The summary of significant accounting policies presented below is designed to assist in understanding our condensed consolidated financial statements. Such condensed consolidated financial statements and the accompanying notes are the representations of our management, who are responsible for their integrity and objectivity. These accounting policies conform to accounting principles generally accepted in the U.S. (“GAAP”), in all material respects, and have been consistently applied in preparing our accompanying condensed consolidated financial statements.
	Basis of Presentation
	Our accompanying condensed consolidated financial statements include our accounts and those of our subsidiaries and any consolidated variable interest entities (“VIEs”). All inter-company balances and transactions have been eliminated in the accompanying condensed consolidated financial statements.
	Interim Unaudited Financial Data
	Our accompanying condensed consolidated financial statements have been prepared by us in accordance with GAAP in conjunction with the rules and regulations of the SEC. Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, our accompanying condensed consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. Our accompanying condensed consolidated financial statements reflect all adjustments, which are, in our opinion, of a normal recurring nature and necessary for a fair presentation of our financial position, results of operations and cash flows for the interim periods. Interim results of operations are not necessarily indicative of the results to be expected for the full year; such results may be less favorable for the full year. Our accompanying condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements and the notes thereto included in our 2014 Annual Report on Form 10-K.
	Variable Interest Entities
	As of March 31, 2015 and December 31, 2014, we had loans totaling $80.5 million to five entities to acquire MOBs in order to facilitate potential Internal Revenue Code Section 1031 tax-deferred exchanges (the “Exchanges”). As of March 31, 2015 and December 31, 2014, our condensed consolidated financial statements included five VIEs, as we are deemed to be the primary beneficiary. We operate each of the MOBs and have all the risk and rewards of ownership. The Exchange must be completed within 180 days after the acquisition date of the MOB in accordance with the applicable provisions of the Internal Revenue Code.
	The assets of the VIEs primarily consist of real estate assets which have no restrictions on our use. We receive all the assets generated by the operating activities of the VIEs. The impact of consolidating the VIEs had an immaterial impact on our total assets at March 31, 2015 and December 31, 2014. The $80.5 million as of March 31, 2015 and December 31, 2014, represents our maximum risk of loss as the VIEs have no debt.
	Real Estate Investments
	Depreciation expense of buildings and improvements for the three months ended March 31, 2015 and 2014, was $23.3 million and $21.4 million, respectively.
	Recently Issued or Adopted Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 is a comprehensive new revenue recognition model requiring a company to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration (i.e., payment) to which the company expects to be entitled in exchange for those goods or services. In adopting ASU 2014-09, companies may use either a full retrospective or a modified retrospective approach. ASU 2014-09 is effective for the first interim period within annual reporting periods beginning after December 15, 2016, and early adoption is not permitted. We are still evaluating the impact of adopting ASU 2014-09 on our financial statements.
	In February 2015, the FASB issued ASU 2015-02, Consolidation - Amendments to the Consolidation Analysis (Topic 810). ASU 2015-02 affects reporting entities that are required to evaluate whether they should consolidate certain legal entities. The amendments in ASU 2015-02 affect the following areas: (i) limited partnerships and similar legal entities; (ii) evaluating fees paid to a decision maker or a service provider as a variable interest; (iii) the effect of fee arrangements on the primary beneficiary determination; (iv) the effect of related parties on the primary beneficiary determination; and (v) certain investment funds. ASU 2015-02 is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2015 with early adoption permitted. We do not believe ASU 2015-02 will have a significant impact on our financial statements.
	In April 2015, the FASB issued ASU 2015-03, Interest - Imputation of Interest (Subtopic 835-30). ASU 2015-03 changes the presentation of debt issuance costs by requiring these costs related to a recognized debt liability to be presented in the consolidated balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by these amendments. ASU 2015-03 is effective for the fiscal years beginning after December 15, 2015, and requires retrospective application. We are still evaluating the impact of adopting ASU 2015-03 on our financial statements.

Business_Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Business Combinations	Business Combinations
	For the three months ended March 31, 2015, we had acquisitions with an aggregate purchase price of $35.3 million. We incurred $0.2 million of costs attributable to these acquisitions, which were recorded in acquisition-related expenses in the accompanying condensed consolidated statements of operations.
	Since the acquisitions were determined to be individually not significant, but significant on a collective basis, the allocations for the 2015 acquisitions are set forth below in the aggregate (in thousands):
	Acquisitions through March 31, 2015	Total
	Land	$	748
	Building and improvements	30,086
	Below market leasehold interests	2,350
	Above market leases	398
	In place leases	2,181
	Below market leases	(463		)
	Aggregate purchase price	$	35,300
	The acquired intangible assets and liabilities, referenced above, had weighted average lives of 16.9 years and 9.9 years, respectively.
	During the three months ended March 31, 2015, we acquired $35.3 million of MOBs in Atlanta, Georgia.
	During the three months ended March 31, 2014, we completed no acquisitions.
	Subsequent to March 31, 2015, we completed acquisitions with an aggregate purchase price of $67.3 million. The following is a preliminary allocation of the aggregate purchase price of such acquisitions (in thousands):
	Acquisitions Subsequent to March 31, 2015	Total
	Land	$	6,239
	Building and improvements	55,769
	Lease and other intangibles, net	4,372
	Net assets acquired	66,380
	Other, net	940
	Aggregate purchase price	$	67,320

Intangibles_Assets_and_Liabili

Intangibles Assets and Liabilities	3 Months Ended
	Mar. 31, 2015
Identified Intangibles, Net [Abstract]
Intangibles Assets and Liabilities	Intangible Assets and Liabilities
	Intangible assets and liabilities consisted of the following as of March 31, 2015 and December 31, 2014 (in thousands, except weighted average remaining amortization period):
		March 31, 2015					December 31, 2014
		Balance			Weighted Average Remaining Amortization Period in Years		Balance			Weighted Average Remaining Amortization Period in Years	Balance Sheet Classification
	Assets:
	In place leases	$	233,112		8.4		$	231,370		8.8	Lease intangibles
	Tenant relationships	186,982			10.4		187,918			10.3	Lease intangibles
	Above market leases	27,063			5.6		26,676			5.5	Other intangibles, net
	Below market leasehold interests	35,300			64.3		32,950			67.3	Other intangibles, net
		482,457					478,914
	Accumulated amortization	(193,723		)			(182,149		)
	Total	$	288,734		15.3		$	296,765		15.2
	Liabilities:
	Below market leases	$	14,600		11.4		$	14,188		11.5	Intangible liabilities, net
	Above market leasehold interests	3,857			31.9		3,857			32.1	Intangible liabilities, net
		18,457					18,045
	Accumulated amortization	(5,993		)			(5,620		)
	Total	$	12,464		16.9		$	12,425		17.1
	The following is a summary of the net intangible amortization for the three months ended March 31, 2015 and 2014 (in thousands):
		Three Months Ended March 31,
		2015			2014
	Amortization recorded against rental income related to above or below market leases	$	475		$	520
	Rental expense related to above or below market leasehold interests	105			148
	Amortization expense related to in place leases and tenant relationships	11,956			12,482

Receivables_and_Other_Assets

Receivables and Other Assets	3 Months Ended
	Mar. 31, 2015
Receivables and Other Assets [Abstract]
Receivables and Other Assets	Receivables and Other Assets
	Receivables and other assets consisted of the following as of March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015		December 31, 2014
	Accounts receivables, net	$	16,435	$	16,468
	Other receivables	7,989		10,639
	Deferred financing costs, net	16,393		16,929
	Deferred leasing costs, net	17,614		17,281
	Straight-line rent receivables, net	59,102		56,433
	Prepaid expenses, deposits, equipment and other, net	26,081		24,642
	Derivative financial instruments - interest rate swaps	194		1,714
	Total	$	143,808	$	144,106
	The following is a summary of amortization of deferred leasing costs and deferred financing costs for the three months ended March 31, 2015 and 2014 (in thousands):
		Three Months Ended March 31,
		2015		2014
	Amortization expense related to deferred leasing costs	$	986	$	874
	Interest expense related to deferred financing costs	842		966

Debt

Debt	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Debt	Debt
	Debt consisted of the following as of March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015			December 31, 2014
	Unsecured revolving credit facility	$	37,000		$	36,000
	Unsecured term loans	420,000			355,000
	Unsecured senior notes	600,000			600,000
	Fixed rate mortgages	372,554			392,399
	Variable rate mortgages	29,359			29,474
		1,458,913			1,412,873
	Net discount	(315		)	(412		)
	Total	$	1,458,598		$	1,412,461
	Unsecured Credit Agreement
	Unsecured Revolving Credit Facility
	On February 11, 2015, HTA and HTALP executed an amendment to the unsecured revolving credit and term loan facility (the “Unsecured Credit Agreement”) which added an additional lender and increased the amount available under the unsecured revolving credit facility from $800.0 million to $850.0 million. The other existing terms of the Unsecured Credit Agreement were unchanged. The actual amount of credit available to us is a function of certain loan-to-value and debt service coverage ratios set forth in the credit facility. The maximum principal amount of the credit facility may be increased, subject to additional financing being provided by our existing lenders or new lenders being added to the unsecured revolving credit facility. The unsecured revolving credit facility matures on January 31, 2020.
	Borrowings under the unsecured revolving credit facility accrue interest equal to adjusted LIBOR, plus a margin ranging from 0.875% to 1.55% per annum based on our credit rating. We also pay a facility fee ranging from 0.125% to 0.30% per annum on the aggregate commitments under the unsecured revolving credit facility. As of March 31, 2015, the margin associated with our borrowings was 1.05% per annum and the facility fee was 0.20% per annum.
	Unsecured Term Loan
	During the three months ended March 31, 2015, we borrowed an additional $65.0 million, increasing the amount outstanding to $265.0 million. We may borrow an additional $35.0 million through May 2015. Borrowings accrue interest equal to adjusted LIBOR, plus a margin ranging from 0.90% to 1.80% per annum based on our credit rating. The margin associated with our borrowings as of March 31, 2015 was 1.15% per annum. Including the impact of the interest rate swaps associated with our unsecured term loan, the interest rate was 1.58% per annum, based on our current credit rating. The unsecured term loan matures on January 31, 2019 and includes a one-year extension, at the option of the borrower, subject to certain conditions.
	$155.0 million Unsecured Term Loan
	As of March 31, 2015, HTALP had a $155.0 million unsecured term loan outstanding that is guaranteed by HTA. The loan matures on July 19, 2019 and the interest rate thereon is equal to LIBOR, plus a margin ranging from 1.55% to 2.40% per annum based on our credit rating. The margin associated with our borrowings as of March 31, 2015 was 1.70% per annum. We have interest rate swaps in place that fix the interest rate at 2.99% per annum, based on our current credit rating. The maximum principal amount under this unsecured term loan may be increased by us, subject to such additional financing being provided by our existing lender.
	$300.0 million Unsecured Senior Notes due 2021
	As of March 31, 2015, HTALP had $300.0 million of unsecured senior notes outstanding that are guaranteed by HTA and mature on July 15, 2021. The unsecured senior notes are registered under the Securities Act of 1933, as amended (the “Securities Act”), bear interest at 3.375% per annum and are payable semi-annually. The unsecured senior notes were offered at 99.205% of the principal amount thereof, with an effective yield to maturity of 3.50% per annum.
	$300.0 million Unsecured Senior Notes due 2023
	As of March 31, 2015, HTALP had $300.0 million of unsecured senior notes outstanding that are guaranteed by HTA and mature on April 15, 2023. The unsecured senior notes are registered under the Securities Act, bear interest at 3.70% per annum and are payable semi-annually. The unsecured senior notes were offered at 99.186% of the principal amount thereof, with an effective yield to maturity of 3.80% per annum.
	Fixed and Variable Rate Mortgages
	As of March 31, 2015, HTALP and its subsidiaries had fixed and variable rate mortgages with interest rates ranging from 1.63% to 12.75% per annum and a weighted average interest rate of 5.35% per annum. Including the impact of the interest rate swap associated with our variable rate mortgage, the weighted average interest rate was 5.59% per annum.
	Future Debt Maturities
	The following table summarizes the debt maturities and scheduled principal repayments of our indebtedness as of March 31, 2015 (in thousands):
	Year	Amount
	2015	$	53,835
	2016	69,985
	2017	116,977
	2018	14,803
	2019	429,680
	Thereafter	773,633
	Total	$	1,458,913
	The above scheduled debt maturities do not include the extension available to us under the Unsecured Credit Agreement as discussed above.
	We are required by the terms of our applicable debt agreements to meet various affirmative and negative covenants that we believe are customary for these types of facilities, such as limitations on the incurrence of debt by us and our subsidiaries that own unencumbered assets, limitations on the nature of HTALP’s business, and limitations on distributions by HTALP and its subsidiaries that own unencumbered assets. Our debt agreements also impose various financial covenants on us, such as a maximum ratio of total indebtedness to total asset value, a minimum ratio of EBITDA to fixed charges, a minimum tangible net worth covenant, a maximum ratio of unsecured indebtedness to unencumbered asset value, rent coverage ratios and a minimum ratio of unencumbered Net Operating Income (“NOI”) to unsecured interest expense. As of March 31, 2015, we believe that we were in compliance with all such financial covenants and reporting requirements. In addition, certain of our debt agreements include events of default provisions that we believe are customary for these types of facilities, including restricting HTA from making dividend distributions to its stockholders in the event HTA is in default thereunder, except to the extent necessary for HTA to maintain its REIT status.

Derivative_Financial_Instrumen

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments
	The following table lists the derivative financial instrument assets and (liabilities) held by us as of March 31, 2015 (in thousands):
	Notional Amount			Index		Rate			Fair Value				Instrument		Maturity
	$	100,000		LIBOR		0.86	%		$	(508	)		Swap		6/15/16
	50,000			LIBOR		1.39			(239		)		Swap		7/17/19
	105,000			LIBOR		1.24			194				Swap		7/17/19
	26,683			LIBOR + 145 bps		4.98			(2,631		)		Swap		5/1/20
	The following table lists the derivative financial instrument assets and (liabilities) held by us as of December 31, 2014 (in thousands):
	Notional Amount			Index		Rate			Fair Value				Instrument		Maturity
	$	100,000		LIBOR		0.86	%		$	(443	)		Swap		6/15/16
	50,000			LIBOR		1.39			317				Swap		7/17/19
	105,000			LIBOR		1.24			1,397				Swap		7/17/19
	26,874			LIBOR + 145 bps		4.98			(2,445		)		Swap		5/1/20
	As of March 31, 2015 and December 31, 2014, the gross fair value of our derivative financial instruments was as follows (in thousands):
			Asset Derivatives									Liability Derivatives
				Fair Value										Fair Value
	Derivatives Not Designated as Hedging Instruments:		Balance Sheet	31-Mar-15				31-Dec-14				Balance Sheet		31-Mar-15			31-Dec-14
			Location									Location
	Interest rate swaps		Receivables and other assets	$	194			$	1,714			Derivative financial instruments		$	3,378		$	2,888
	There were no derivatives offset in our accompanying condensed consolidated balance sheets as of March 31, 2015 and December 31, 2014. As of March 31, 2015 and December 31, 2014, we had derivatives subject to enforceable master netting arrangements which allowed for net cash settlement with the respective counterparties (in thousands):
		31-Mar-15											31-Dec-14
		Gross Amounts			Amounts Subject to Enforceable Master Netting Arrangements				Net Amounts				Gross Amounts			Amounts Subject to Enforceable Master Netting Arrangements			Net Amounts
	Asset derivatives	$	194		$	(194	)		$	—			$	1,714		$	—		$	1,714
	Liability derivatives	3,378			(194		)		3,184				2,888			—			2,888
	We have agreements with each of our interest rate swap derivative counterparties that contain a provision whereby if we default on certain of our unsecured indebtedness, then our counterparties could declare us in default on our interest rate swap derivative obligations resulting in an acceleration of the indebtedness. In addition, we are exposed to credit risk in the event of non-performance by our derivative counterparties. We believe we mitigate the credit risk by entering into agreements with credit-worthy counterparties. We record counterparty credit risk valuation adjustments on interest rate swap derivative assets in order to properly reflect the credit quality of the counterparty. In addition, our fair value of interest rate swap derivative liabilities is adjusted to reflect the impact of our credit quality. As of March 31, 2015, there have been no termination events or events of default related to our interest rate swaps.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies
	Litigation
	We are not presently subject to any material litigation nor, to our knowledge, is any material litigation threatened against us, which if determined unfavorably to us, would have a material effect on our condensed consolidated financial position, results of operations or cash flows.
	Environmental Matters
	We follow the policy of monitoring our properties for the presence of hazardous or toxic substances. While there can be no assurance that a material environmental liability does not exist at our properties, we are not currently aware of any environmental liability with respect to our properties that would have a material effect on our condensed consolidated financial position, results of operations or cash flows. Further, we are not aware of any material environmental liability or any unasserted claim or assessment with respect to an environmental liability at our properties that we believe would require additional disclosure or the recording of a loss contingency.
	Other
	Our other commitments and contingencies include the usual obligations of real estate owners and operators in the normal course of business. In our opinion, these matters are not expected to have a material effect on our condensed consolidated financial position, results of operations or cash flows.

Stockholders_Equity_and_Partne

Stockholders' Equity and Partners' Capital	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Stockholders' Equity and Partners' Capital	Stockholders’ Equity and Partners’ Capital
	HTALP’s partnership agreement provides that it will distribute cash flows from operations and net sale proceeds to its partners in accordance with their overall ownership interests at such times and in such amounts as the general partner determines. Except for certain LTIP units that have not vested, dividend distributions are made such that a holder of one partnership unit will receive distributions from HTALP in an amount equal to the dividend distributions paid to the holder of one share of HTA’s common stock. In addition, for each share of common stock issued or redeemed by HTA, HTALP issues or redeems a corresponding number of partnership units.
	Common Stock Offerings
	On February 28, 2014, HTA amended the at-the-market (“ATM”) offering program of its common stock with an aggregate sales price of up to $300.0 million, primarily to add sales agents to the program. During the three months ended March 31, 2015, HTA did not issue and sell any shares of its common stock under the ATM offering program and as of March 31, 2015, $256.6 million remained available for issuance under the ATM.
	Common Stock Dividends
	See our accompanying condensed consolidated statements of operations for the dividends declared during three months ended March 31, 2015 and 2014. On May 5, 2015, HTA declared a quarterly cash dividend of $0.29 per share to be paid on July 3, 2015 to stockholders of record of its common stock on June 26, 2015.
	Incentive Plan
	HTA’s Amended and Restated 2006 Incentive Plan (the “Plan”) permits the grant of incentive awards to our employees, officers, non-employee directors and consultants as selected by our Board of Directors or the Compensation Committee. The Plan authorizes the granting of awards in any of the following forms: options; stock appreciation rights; restricted stock; restricted or deferred stock units; performance awards; dividend equivalents; other stock-based awards, including units in HTALP; and cash-based awards. Subject to adjustment as provided in the Plan, the aggregate number of awards reserved and available for issuance under the Plan is 5,000,000. As of March 31, 2015, there were 2,126,745 awards available for grant under the Plan.
	LTIP Units
	Awards under the LTIP consist of Series C units in HTALP, and are subject to the achievement of certain performance and market conditions in order to vest. Once vested, the Series C units are converted into common units of HTALP, which may be converted into shares of HTA’s common stock. The LTIP awards were fully expensed in 2013, except for $4.5 million of expense associated with 225,000 units that will only vest in the event of a change in control prior to May 16, 2015. We will not recognize any expense associated with these units until such time as a change in control event occurs or is probable. As of March 31, 2015 and December 31, 2014, we had 225,000 LTIP units outstanding with a weighted average grant date fair value of $20.00
	.
	Restricted Common Stock
	For the three months ended March 31, 2015 and 2014, we recognized compensation expense of $1.9 million and $1.4 million, respectively, which was recorded in general and administrative expenses.
	As of March 31, 2015, there was $7.1 million of unrecognized compensation expense net of estimated forfeitures, which will be recognized over a remaining weighted average period of 2.1 years.
	The following is a summary of the activity in our restricted common stock during 2015:
		Restricted Common Stock		Weighted
				Average Grant
				Date Fair Value
	Balance as of December 31, 2014	463,050		$	20.9
	Granted	172,115		26.98
	Vested	(113,029	)	21.99
	Forfeited	(8,000	)	22.08
	Balance as of March 31, 2015	514,136		$	22.6

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments
	Financial Instruments Reported at Fair Value
	The table below presents our assets and liabilities measured at fair value on a recurring basis as of March 31, 2015, aggregated by the applicable Level in the fair value hierarchy (in thousands):
			Quoted Prices in			Significant Other			Significant			Total
			Active Markets for			Observable Inputs			Unobservable Inputs
			Identical Assets			(Level 2)			(Level 3)
			and Liabilities
			(Level 1 )
	Assets:
	Derivative financial instruments		$	—		$	194		$	—		$	194
	Liabilities:
	Derivative financial instruments		$	—		$	3,378		$	—		$	3,378
	The table below presents our assets and liabilities measured at fair value on a recurring basis as of December 31, 2014, aggregated by the applicable Level in the fair value hierarchy (in thousands):
			Quoted Prices in			Significant Other			Significant			Total
			Active Markets for			Observable Inputs			Unobservable Inputs
			Identical Assets			(Level 2)			(Level 3)
			and Liabilities
			(Level 1 )
	Assets:
	Derivative financial instruments		$	—		$	1,714		$	—		$	1,714
	Liabilities:
	Derivative financial instruments		$	—		$	2,888		$	—		$	2,888
	There have been no transfers of assets or liabilities between Levels. We will record any such transfers at the end of the reporting period in which a change of event occurs that results in a transfer. Although we have determined that the majority of the inputs used to value our interest rate swap derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with these instruments 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 credit valuation adjustments on the overall valuation of our interest rate swap derivative positions and have determined that the credit valuation adjustments are not significant to their overall valuation. As a result, we have determined that our interest rate swap derivative valuations in their entirety are classified in Level 2 of the fair value hierarchy.
	Financial Instruments Disclosed at Fair Value
	We consider the carrying values of cash and cash equivalents, accounts and other receivables, restricted cash and escrow deposits and accounts payable and accrued liabilities to approximate fair value for these financial instruments because of the short period of time between origination of the instruments and their expected realization. All of these financial instruments are considered Level 2. The fair value of debt is estimated using borrowing rates available to us with similar terms and maturities. The following table sets forth the carrying value and fair value of our debt (in thousands):
				March 31, 2015						December 31, 2014
		Fair Value Level		Carrying Amount			Fair Value			Carrying Amount			Fair Value
	Debt	2		$	1,458,598		$	1,507,720		$	1,412,461		$	1,447,432

Per_Share_Data_of_HTA

Per Share Data of HTA	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Per Share Data of HTA	Per Share Data of HTA
	HTA includes unvested share-based payment awards that contain non-forfeitable rights to dividends or dividend equivalents as “participating securities” pursuant to the two-class method. The resulting classes are our common stock and restricted stock. For the three months ended March 31, 2015 and 2014, all of HTA’s earnings were distributed and the calculated earnings per share amount would be the same for all classes.
	The following is the reconciliation of the numerator and denominator used in basic and diluted earnings per share of HTA common stock for the three months ended March 31, 2015 and 2014 (in thousands, except per share data):
		Three Months Ended March 31,
		2015			2014
	Numerator:
	Net income	$	6,942		$	5,434
	Net income attributable to noncontrolling interests	(138		)	(142		)
	Net income attributable to common stockholders	$	6,804		$	5,292
	Denominator: (1)
	Weighted average number of shares outstanding - basic	125,175			118,644
	Dilutive shares	1,930			1,268
	Weighted average number of shares outstanding - diluted	127,105			119,912
	Earnings per common share - basic (1)
	Net income attributable to common stockholders	$	0.05		$	0.04
	Earnings per common share - diluted (1)
	Net income attributable to common stockholders	$	0.05		$	0.04
	(1) For the three months ended March 31, 2014, amounts have been adjusted retroactively to reflect a 1-for-2 reverse stock split effected December 15, 2014.

Per_Unit_Data_of_HTALP

Per Unit Data of HTALP (Healthcare Trust of America Holdings, LP (HTALP))	3 Months Ended
	Mar. 31, 2015
Healthcare Trust of America Holdings, LP (HTALP)
Earnings Per Share
Per Unit Data of HTALP	Per Unit Data of HTALP
	The following is the reconciliation of the numerator and denominator used in basic and diluted earnings per unit of HTALP for the three months ended March 31, 2015 and 2014 (in thousands, except per unit data):
		Three Months Ended March 31,
		2015			2014
	Numerator:
	Net income	$	6,942		$	5,434
	Net income attributable to noncontrolling interests	(33		)	(38		)
	Net income attributable to common unitholders	$	6,909		$	5,396
	Denominator: (1)
	Weighted average number of units outstanding - basic	126,330			120,170
	Dilutive units	—			—
	Weighted average number of units outstanding - diluted	126,330			120,170
	Earnings per common unit - basic: (1)
	Net income attributable to common unitholders	$	0.05		$	0.04
	Earnings per common unit - diluted: (1)
	Net income attributable to common unitholders	$	0.05		$	0.04
	(1) For the three months ended March 31, 2014, amounts have been adjusted retroactively to reflect a 1-for-2 reverse stock split effected December 15, 2014.

Supplemental_Cash_Flow_Informa

Supplemental Cash Flow Information	3 Months Ended
	Mar. 31, 2015
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Supplemental Cash Flow Information
	The following is the supplemental cash flow information for the three months ended March 31, 2015 and 2014 (in thousands):
		Three Months Ended March 31,
		2015		2014
	Interest paid	$	13,238	$	8,235
	Income taxes paid	99		58
	Supplemental Disclosure of Noncash Activities:
	Investing Activities:
	Accrued capital expenditures	$	1,464	$	2,272
	Financing Activities:
	Dividend distributions declared, but not paid	$	36,309	$	34,148

Summary_of_Significant_Account1

Summary of Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation
	Our accompanying condensed consolidated financial statements include our accounts and those of our subsidiaries and any consolidated variable interest entities (“VIEs”). All inter-company balances and transactions have been eliminated in the accompanying condensed consolidated financial statements.
Interim Unaudited Financial Data	Interim Unaudited Financial Data
	Our accompanying condensed consolidated financial statements have been prepared by us in accordance with GAAP in conjunction with the rules and regulations of the SEC. Certain information and footnote disclosures required for annual financial statements have been condensed or excluded pursuant to SEC rules and regulations. Accordingly, our accompanying condensed consolidated financial statements do not include all of the information and footnotes required by GAAP for complete financial statements. Our accompanying condensed consolidated financial statements reflect all adjustments, which are, in our opinion, of a normal recurring nature and necessary for a fair presentation of our financial position, results of operations and cash flows for the interim periods. Interim results of operations are not necessarily indicative of the results to be expected for the full year; such results may be less favorable for the full year. Our accompanying condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements and the notes thereto included in our 2014 Annual Report on Form 10-K.
Variable Interest Entities	Variable Interest Entities
	As of March 31, 2015 and December 31, 2014, we had loans totaling $80.5 million to five entities to acquire MOBs in order to facilitate potential Internal Revenue Code Section 1031 tax-deferred exchanges (the “Exchanges”). As of March 31, 2015 and December 31, 2014, our condensed consolidated financial statements included five VIEs, as we are deemed to be the primary beneficiary. We operate each of the MOBs and have all the risk and rewards of ownership. The Exchange must be completed within 180 days after the acquisition date of the MOB in accordance with the applicable provisions of the Internal Revenue Code.
	The assets of the VIEs primarily consist of real estate assets which have no restrictions on our use. We receive all the assets generated by the operating activities of the VIEs. The impact of consolidating the VIEs had an immaterial impact on our total assets at March 31, 2015 and December 31, 2014. The $80.5 million as of March 31, 2015 and December 31, 2014, represents our maximum risk of loss as the VIEs have no debt.
Real Estate Investments	Real Estate Investments
	Depreciation expense of buildings and improvements for the three months ended March 31, 2015 and 2014, was $23.3 million and $21.4 million, respectively.
Recently Issued or Adopted Accounting Pronouncements	Recently Issued or Adopted Accounting Pronouncements
	In May 2014, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606). ASU 2014-09 is a comprehensive new revenue recognition model requiring a company to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration (i.e., payment) to which the company expects to be entitled in exchange for those goods or services. In adopting ASU 2014-09, companies may use either a full retrospective or a modified retrospective approach. ASU 2014-09 is effective for the first interim period within annual reporting periods beginning after December 15, 2016, and early adoption is not permitted. We are still evaluating the impact of adopting ASU 2014-09 on our financial statements.
	In February 2015, the FASB issued ASU 2015-02, Consolidation - Amendments to the Consolidation Analysis (Topic 810). ASU 2015-02 affects reporting entities that are required to evaluate whether they should consolidate certain legal entities. The amendments in ASU 2015-02 affect the following areas: (i) limited partnerships and similar legal entities; (ii) evaluating fees paid to a decision maker or a service provider as a variable interest; (iii) the effect of fee arrangements on the primary beneficiary determination; (iv) the effect of related parties on the primary beneficiary determination; and (v) certain investment funds. ASU 2015-02 is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2015 with early adoption permitted. We do not believe ASU 2015-02 will have a significant impact on our financial statements.
	In April 2015, the FASB issued ASU 2015-03, Interest - Imputation of Interest (Subtopic 835-30). ASU 2015-03 changes the presentation of debt issuance costs by requiring these costs related to a recognized debt liability to be presented in the consolidated balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by these amendments. ASU 2015-03 is effective for the fiscal years beginning after December 15, 2015, and requires retrospective application. We are still evaluating the impact of adopting ASU 2015-03 on our financial statements.

Business_Combinations_Tables

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Schedule of Purchase Price Allocation	Since the acquisitions were determined to be individually not significant, but significant on a collective basis, the allocations for the 2015 acquisitions are set forth below in the aggregate (in thousands):
	Acquisitions through March 31, 2015	Total
	Land	$	748
	Building and improvements	30,086
	Below market leasehold interests	2,350
	Above market leases	398
	In place leases	2,181
	Below market leases	(463		)
	Aggregate purchase price	$	35,300
	The following is a preliminary allocation of the aggregate purchase price of such acquisitions (in thousands):
	Acquisitions Subsequent to March 31, 2015	Total
	Land	$	6,239
	Building and improvements	55,769
	Lease and other intangibles, net	4,372
	Net assets acquired	66,380
	Other, net	940
	Aggregate purchase price	$	67,320

Intangibles_Assets_and_Liabili1

Intangibles Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2015
Identified Intangibles, Net [Abstract]
Schedule of Identified Intangible Assets and Liabilities, Net	Intangible assets and liabilities consisted of the following as of March 31, 2015 and December 31, 2014 (in thousands, except weighted average remaining amortization period):
		March 31, 2015					December 31, 2014
		Balance			Weighted Average Remaining Amortization Period in Years		Balance			Weighted Average Remaining Amortization Period in Years	Balance Sheet Classification
	Assets:
	In place leases	$	233,112		8.4		$	231,370		8.8	Lease intangibles
	Tenant relationships	186,982			10.4		187,918			10.3	Lease intangibles
	Above market leases	27,063			5.6		26,676			5.5	Other intangibles, net
	Below market leasehold interests	35,300			64.3		32,950			67.3	Other intangibles, net
		482,457					478,914
	Accumulated amortization	(193,723		)			(182,149		)
	Total	$	288,734		15.3		$	296,765		15.2
	Liabilities:
	Below market leases	$	14,600		11.4		$	14,188		11.5	Intangible liabilities, net
	Above market leasehold interests	3,857			31.9		3,857			32.1	Intangible liabilities, net
		18,457					18,045
	Accumulated amortization	(5,993		)			(5,620		)
	Total	$	12,464		16.9		$	12,425		17.1
Summary of Intangible Asset and Liabilities Amortization	The following is a summary of the net intangible amortization for the three months ended March 31, 2015 and 2014 (in thousands):
		Three Months Ended March 31,
		2015			2014
	Amortization recorded against rental income related to above or below market leases	$	475		$	520
	Rental expense related to above or below market leasehold interests	105			148
	Amortization expense related to in place leases and tenant relationships	11,956			12,482

Receivables_and_Other_Assets_T

Receivables and Other Assets (Tables)	3 Months Ended
	Mar. 31, 2015
Receivables and Other Assets [Abstract]
Schedule of Receivables and Other Assets	Receivables and other assets consisted of the following as of March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015		December 31, 2014
	Accounts receivables, net	$	16,435	$	16,468
	Other receivables	7,989		10,639
	Deferred financing costs, net	16,393		16,929
	Deferred leasing costs, net	17,614		17,281
	Straight-line rent receivables, net	59,102		56,433
	Prepaid expenses, deposits, equipment and other, net	26,081		24,642
	Derivative financial instruments - interest rate swaps	194		1,714
	Total	$	143,808	$	144,106
Schedule of Receivables and Other Assets Amortization Expense	The following is a summary of amortization of deferred leasing costs and deferred financing costs for the three months ended March 31, 2015 and 2014 (in thousands):
		Three Months Ended March 31,
		2015		2014
	Amortization expense related to deferred leasing costs	$	986	$	874
	Interest expense related to deferred financing costs	842		966

Debt_Tables

Debt (Tables)	3 Months Ended
	Mar. 31, 2015
Debt Disclosure [Abstract]
Schedule of Debt	Debt consisted of the following as of March 31, 2015 and December 31, 2014 (in thousands):
		March 31, 2015			December 31, 2014
	Unsecured revolving credit facility	$	37,000		$	36,000
	Unsecured term loans	420,000			355,000
	Unsecured senior notes	600,000			600,000
	Fixed rate mortgages	372,554			392,399
	Variable rate mortgages	29,359			29,474
		1,458,913			1,412,873
	Net discount	(315		)	(412		)
	Total	$	1,458,598		$	1,412,461
Schedule of Maturities of Long-term Debt	The following table summarizes the debt maturities and scheduled principal repayments of our indebtedness as of March 31, 2015 (in thousands):
	Year	Amount
	2015	$	53,835
	2016	69,985
	2017	116,977
	2018	14,803
	2019	429,680
	Thereafter	773,633
	Total	$	1,458,913

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	The following table lists the derivative financial instrument assets and (liabilities) held by us as of March 31, 2015 (in thousands):
	Notional Amount			Index		Rate			Fair Value				Instrument		Maturity
	$	100,000		LIBOR		0.86	%		$	(508	)		Swap		6/15/16
	50,000			LIBOR		1.39			(239		)		Swap		7/17/19
	105,000			LIBOR		1.24			194				Swap		7/17/19
	26,683			LIBOR + 145 bps		4.98			(2,631		)		Swap		5/1/20
	The following table lists the derivative financial instrument assets and (liabilities) held by us as of December 31, 2014 (in thousands):
	Notional Amount			Index		Rate			Fair Value				Instrument		Maturity
	$	100,000		LIBOR		0.86	%		$	(443	)		Swap		6/15/16
	50,000			LIBOR		1.39			317				Swap		7/17/19
	105,000			LIBOR		1.24			1,397				Swap		7/17/19
	26,874			LIBOR + 145 bps		4.98			(2,445		)		Swap		5/1/20
Schedule of Other Derivatives Not Designated as Hedging Instruments, Statements of Financial Performance and Financial Position, Location	As of March 31, 2015 and December 31, 2014, the gross fair value of our derivative financial instruments was as follows (in thousands):
			Asset Derivatives									Liability Derivatives
				Fair Value										Fair Value
	Derivatives Not Designated as Hedging Instruments:		Balance Sheet	31-Mar-15				31-Dec-14				Balance Sheet		31-Mar-15			31-Dec-14
			Location									Location
	Interest rate swaps		Receivables and other assets	$	194			$	1,714			Derivative financial instruments		$	3,378		$	2,888
Schedule of Offsetting Derivative Assets and Liabilities	As of March 31, 2015 and December 31, 2014, we had derivatives subject to enforceable master netting arrangements which allowed for net cash settlement with the respective counterparties (in thousands):
		31-Mar-15											31-Dec-14
		Gross Amounts			Amounts Subject to Enforceable Master Netting Arrangements				Net Amounts				Gross Amounts			Amounts Subject to Enforceable Master Netting Arrangements			Net Amounts
	Asset derivatives	$	194		$	(194	)		$	—			$	1,714		$	—		$	1,714
	Liability derivatives	3,378			(194		)		3,184				2,888			—			2,888

Stockholders_Equity_and_Partne1

Stockholders' Equity and Partners' Capital (Tables)	3 Months Ended
	Mar. 31, 2015
Equity [Abstract]
Schedule of Restricted Common Stock Activity	The following is a summary of the activity in our restricted common stock during 2015:
		Restricted Common Stock		Weighted
				Average Grant
				Date Fair Value
	Balance as of December 31, 2014	463,050		$	20.9
	Granted	172,115		26.98
	Vested	(113,029	)	21.99
	Forfeited	(8,000	)	22.08
	Balance as of March 31, 2015	514,136		$	22.6

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The table below presents our assets and liabilities measured at fair value on a recurring basis as of March 31, 2015, aggregated by the applicable Level in the fair value hierarchy (in thousands):
			Quoted Prices in			Significant Other			Significant			Total
			Active Markets for			Observable Inputs			Unobservable Inputs
			Identical Assets			(Level 2)			(Level 3)
			and Liabilities
			(Level 1 )
	Assets:
	Derivative financial instruments		$	—		$	194		$	—		$	194
	Liabilities:
	Derivative financial instruments		$	—		$	3,378		$	—		$	3,378
	The table below presents our assets and liabilities measured at fair value on a recurring basis as of December 31, 2014, aggregated by the applicable Level in the fair value hierarchy (in thousands):
			Quoted Prices in			Significant Other			Significant			Total
			Active Markets for			Observable Inputs			Unobservable Inputs
			Identical Assets			(Level 2)			(Level 3)
			and Liabilities
			(Level 1 )
	Assets:
	Derivative financial instruments		$	—		$	1,714		$	—		$	1,714
	Liabilities:
	Derivative financial instruments		$	—		$	2,888		$	—		$	2,888
Schedule of Fair Value of Financial Instruments	The following table sets forth the carrying value and fair value of our debt (in thousands):
				March 31, 2015						December 31, 2014
		Fair Value Level		Carrying Amount			Fair Value			Carrying Amount			Fair Value
	Debt	2		$	1,458,598		$	1,507,720		$	1,412,461		$	1,447,432

Per_Share_Data_of_HTA_Tables

Per Share Data of HTA (Tables)	3 Months Ended
	Mar. 31, 2015
Earnings Per Share [Abstract]
Schedule of Earnings Per Share, Basic and Diluted	The following is the reconciliation of the numerator and denominator used in basic and diluted earnings per share of HTA common stock for the three months ended March 31, 2015 and 2014 (in thousands, except per share data):
		Three Months Ended March 31,
		2015			2014
	Numerator:
	Net income	$	6,942		$	5,434
	Net income attributable to noncontrolling interests	(138		)	(142		)
	Net income attributable to common stockholders	$	6,804		$	5,292
	Denominator: (1)
	Weighted average number of shares outstanding - basic	125,175			118,644
	Dilutive shares	1,930			1,268
	Weighted average number of shares outstanding - diluted	127,105			119,912
	Earnings per common share - basic (1)
	Net income attributable to common stockholders	$	0.05		$	0.04
	Earnings per common share - diluted (1)
	Net income attributable to common stockholders	$	0.05		$	0.04
	(1) For the three months ended March 31, 2014, amounts have been adjusted retroactively to reflect a 1-for-2 reverse stock split effected December 15, 2014.

Per_Unit_Data_of_HTALP_Tables

Per Unit Data of HTALP (Tables) (Healthcare Trust of America Holdings, LP (HTALP))	3 Months Ended
	Mar. 31, 2015
Healthcare Trust of America Holdings, LP (HTALP)
Earnings Per Share
Schedule of Earnings Per Unit, Basic and Diluted	The following is the reconciliation of the numerator and denominator used in basic and diluted earnings per unit of HTALP for the three months ended March 31, 2015 and 2014 (in thousands, except per unit data):
		Three Months Ended March 31,
		2015			2014
	Numerator:
	Net income	$	6,942		$	5,434
	Net income attributable to noncontrolling interests	(33		)	(38		)
	Net income attributable to common unitholders	$	6,909		$	5,396
	Denominator: (1)
	Weighted average number of units outstanding - basic	126,330			120,170
	Dilutive units	—			—
	Weighted average number of units outstanding - diluted	126,330			120,170
	Earnings per common unit - basic: (1)
	Net income attributable to common unitholders	$	0.05		$	0.04
	Earnings per common unit - diluted: (1)
	Net income attributable to common unitholders	$	0.05		$	0.04
	(1) For the three months ended March 31, 2014, amounts have been adjusted retroactively to reflect a 1-for-2 reverse stock split effected December 15, 2014.

Supplemental_Cash_Flow_Informa1

Supplemental Cash Flow Information (Tables)	3 Months Ended
	Mar. 31, 2015
Supplemental Cash Flow Elements [Abstract]
Schedule of Cash Flow, Supplemental Disclosures	The following is the supplemental cash flow information for the three months ended March 31, 2015 and 2014 (in thousands):
		Three Months Ended March 31,
		2015		2014
	Interest paid	$	13,238	$	8,235
	Income taxes paid	99		58
	Supplemental Disclosure of Noncash Activities:
	Investing Activities:
	Accrued capital expenditures	$	1,464	$	2,272
	Financing Activities:
	Dividend distributions declared, but not paid	$	36,309	$	34,148

Organization_and_Description_o1

Organization and Description of Business (Details) (USD $)	0 Months Ended	3 Months Ended
In Billions, unless otherwise specified	Dec. 15, 2014	Mar. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General partnership interest percentage		98.50%
Purchased property inception to current date		$3.40
Reverse stock split conversion ratio	0.5

Summary_of_Significant_Account2

Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
			entity
Accounting Policies [Line Items]
VIEs, total loans	$80.50		$80.50
Number of VIEs	5		5
VIEs, maximum risk of loss	80.5		80.5
Building and Improvements
Accounting Policies [Line Items]
Depreciation expense	$23.30	$21.40

Business_Combinations_Acquisit

Business Combinations - Acquisitions (Details) (USD $)	1 Months Ended	3 Months Ended
	6-May-15	Mar. 31, 2015
Subsequent Event
Business Acquisition, Purchase Price Allocation, Real Estate [Abstract]
Land	$6,239,000
Building and improvements	55,769,000
Lease and other intangibles, net	4,372,000
Net assets acquired	66,380,000
Other, net	940,000
Aggregate purchase price	67,320,000
2015 Acquisitions
Business Acquisition [Line Items]
Closing costs		200,000
Business Acquisition, Purchase Price Allocation, Real Estate [Abstract]
Land		748,000
Building and improvements		30,086,000
Below market leasehold interests		2,350,000
Above market leases		398,000
In place leases		2,181,000
Below market leases		-463,000
Aggregate purchase price		35,300,000
Weighted average lives of acquired intangible assets		16 years 10 months 24 days
Weighted average lives of acquired intangible liabilities		9 years 10 months 24 days
MOB in Atlanta, Georgia
Business Acquisition, Purchase Price Allocation, Real Estate [Abstract]
Aggregate purchase price		$35,300,000

Intangibles_Assets_and_Liabili2

Intangibles Assets and Liabilities - Summary of Intangible Assets and Liabilities (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Assets
Gross	$482,457	$478,914
Accumulated amortization	-193,723	-182,149
Total	288,734	296,765
Weighted average remaining amortization period in years	15 years 3 months	15 years 2 months 12 days
Liabilities
Gross	18,457	18,045
Accumulated amortization	-5,993	-5,620
Total	12,464	12,425
Weighted average remaining amortization period in years	16 years 10 months 17 days	17 years 1 month 6 days
Below Market Leases
Liabilities
Gross	14,600	14,188
Weighted average remaining amortization period in years	11 years 5 months 12 days	11 years 6 months
Above Market Leasehold Interests
Liabilities
Gross	3,857	3,857
Weighted average remaining amortization period in years	31 years 10 months 27 days	32 years 1 month 6 days
In Place Leases
Assets
Gross	233,112	231,370
Weighted average remaining amortization period in years	8 years 4 months 9 days	8 years 9 months 18 days
Tenant Relationships
Assets
Gross	186,982	187,918
Weighted average remaining amortization period in years	10 years 4 months 24 days	10 years 3 months 18 days
Above Market Leases
Assets
Gross	27,063	26,676
Weighted average remaining amortization period in years	5 years 7 months 2 days	5 years 6 months
Below Market Leasehold Interests
Assets
Gross	$35,300	$32,950
Weighted average remaining amortization period in years	64 years 3 months	67 years 3 months 18 days

Intangibles_Assets_and_Liabili3

Intangibles Assets and Liabilities - Summary of Intangible Amortization (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Amortization recorded against rental income related to above or below market leases
Schedule of Finite-Lived Intangible Assets and Liabilities [Line Items]
Amortization of intangible assets and liabilities	$475	$520
Rental expense related to above or below market leasehold interests
Schedule of Finite-Lived Intangible Assets and Liabilities [Line Items]
Amortization of intangible assets and liabilities	105	148
Amortization expense related to in place leases and tenant relationships
Schedule of Finite-Lived Intangible Assets and Liabilities [Line Items]
Amortization of intangible assets and liabilities	$11,956	$12,482

Receivables_and_Other_Assets_D

Receivables and Other Assets (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Receivables and Other Assets [Abstract]
Accounts receivables, net	$16,435	$16,468
Other receivables	7,989	10,639
Deferred financing costs, net	16,393	16,929
Deferred leasing costs, net	17,614	17,281
Straight-line rent receivables, net	59,102	56,433
Prepaid expenses, deposits, equipment and other, net	26,081	24,642
Derivative financial instruments - interest rate swaps	194	1,714
Total	$143,808	$144,106

Receivables_and_Other_Assets_A

Receivables and Other Assets (Amortization) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Receivables and Other Assets [Abstract]
Amortization expense related to deferred leasing costs	$986	$874
Interest expense related to deferred financing costs	$842	$966

Debt_Net_Details

Debt - Net (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Debt Instrument
Total debt, gross	$1,458,913	$1,412,873
Net discount	-315	-412
Total	1,458,598	1,412,461
Unsecured Term Loans
Debt Instrument
Total debt, gross	420,000	355,000
Unsecured Senior Notes
Debt Instrument
Total debt, gross	600,000	600,000
Mortgages | Fixed Rate Mortgages
Debt Instrument
Total debt, gross	372,554	392,399
Mortgages | Variable Rate Mortgages
Debt Instrument
Total debt, gross	29,359	29,474
Unsecured Revolving Credit Facility
Debt Instrument
Line of credit facility, amount outstanding	$37,000	$36,000

Debt_Principal_Maturity_Schedu

Debt - Principal Maturity Schedule (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Debt Disclosure [Abstract]
2015	$53,835
2016	69,985
2017	116,977
2018	14,803
2019	429,680
Thereafter	773,633
Total	$1,458,913	$1,412,873

Debt_Textuals_Details

Debt - Textuals (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014	Feb. 11, 2015	Nov. 19, 2014
Debt Instrument
Outstanding amount	$1,458,913,000	$1,412,873,000
Unsecured Term Loans
Debt Instrument
Outstanding amount	420,000,000	355,000,000
Unsecured Term Loans | $300.0 Million Unsecured Term Loan
Debt Instrument
Basis spread on variable rate	1.15%
Additional borrowings	65,000,000
Outstanding amount	265,000,000
Additional amount that can be borrowed	35,000,000
Weighted average interest rate with interest rate swap impact	1.58%
Unsecured credit agreement, extension option period	1 year
Unsecured Term Loans | $300.0 Million Unsecured Term Loan | Minimum
Debt Instrument
Basis spread on variable rate	0.90%
Unsecured Term Loans | $300.0 Million Unsecured Term Loan | Maximum
Debt Instrument
Basis spread on variable rate	1.80%
Unsecured Term Loans | $155.0 Million Unsecured Term Loan
Debt Instrument
Basis spread on variable rate	1.70%
Weighted average interest rate with interest rate swap impact	2.99%
Debt instrument, face amount	155,000,000
Unsecured Term Loans | $155.0 Million Unsecured Term Loan | Minimum
Debt Instrument
Basis spread on variable rate	1.55%
Unsecured Term Loans | $155.0 Million Unsecured Term Loan | Maximum
Debt Instrument
Basis spread on variable rate	2.40%
Unsecured Senior Notes
Debt Instrument
Outstanding amount	600,000,000	600,000,000
Unsecured Senior Notes | Unsecured Senior Notes Due 2021
Debt Instrument
Debt instrument, face amount	300,000,000
Debt instrument, stated interest rate	3.38%
Debt instrument, percentage of principal amount received	99.21%
Debt instrument, effective interest rate	3.50%
Unsecured Senior Notes | Unsecured Senior Notes Due 2023
Debt Instrument
Debt instrument, face amount	300,000,000
Debt instrument, stated interest rate	3.70%
Debt instrument, percentage of principal amount received	99.19%
Debt instrument, effective interest rate	3.80%
Mortgages
Debt Instrument
Weighted average interest rate with interest rate swap impact	5.59%
Effective percentage rate range, minimum	1.63%
Effective percentage rate range, maximum	12.75%
Weighted average interest rate	5.35%
Unsecured Revolving Credit Facility
Debt Instrument
Line of credit facility, borrowing capacity			$850,000,000	$800,000,000
Basis spread on variable rate	1.05%
Line of credit facility, commitment fee percentage	0.20%
Unsecured Revolving Credit Facility | Minimum
Debt Instrument
Basis spread on variable rate	0.88%
Line of credit facility, commitment fee percentage	0.13%
Unsecured Revolving Credit Facility | Maximum
Debt Instrument
Basis spread on variable rate	1.55%
Line of credit facility, commitment fee percentage	0.30%

Derivative_Financial_Instrumen2

Derivative Financial Instruments - Table of Derivative Financial Instruments (Details) (USD $)	3 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Derivative
Fair value, liability	($3,378)	($2,888)
Fair value, asset	194	1,714
Interest Rate Swap | 0.86%
Derivative
Notional Amount	100,000	100,000
Index	LIBOR	LIBOR
Rate	0.86%	0.86%
Fair value, liability	-508	-443
Interest Rate Swap | 1.39%
Derivative
Notional Amount	50,000	50,000
Index	LIBOR	LIBOR
Rate	1.39%	1.39%
Fair value, liability	-239
Fair value, asset		317
Interest Rate Swap | 1.24%
Derivative
Notional Amount	105,000	105,000
Index	LIBOR	LIBOR
Rate	1.24%	1.24%
Fair value, asset	194	1,397
Interest Rate Swap | 4.98%
Derivative
Notional Amount	26,683	26,874
Index	LIBOR + 145 bps	LIBOR + 145 bps
Rate	4.98%	4.98%
Fair value, liability	($2,631)	($2,445)
Basis spread on variable rate	1.45%	1.45%

Derivative_Financial_Instrumen3

Derivative Financial Instruments - Derivative Instruments Fair Value Table (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Derivatives, Fair Value
Derivative financial instruments, asset	$194	$1,714
Derivative financial instruments, liability	3,378	2,888
Interest Rate Swap | Not Designated as Hedging Instrument | Receivables and Other Assets
Derivatives, Fair Value
Derivative financial instruments, asset	194	1,714
Interest Rate Swap | Not Designated as Hedging Instrument | Derivative Financial Instruments
Derivatives, Fair Value
Derivative financial instruments, liability	$3,378	$2,888

Derivative_Financial_Instrumen4

Derivative Financial Instruments - Derivative Offsetting (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative financial instruments, asset	$194	$1,714
Derivative assets, amounts subject to enforceable master netting arrangements	-194	0
Derivative assets, net amounts	0	1,714
Derivative liabilities	3,378	2,888
Derivative liabilities, amounts subject to enforceable master netting arrangements	-194	0
Derivative liabilities, net amounts	$3,184	$2,888

Stockholders_Equity_and_Partne2

Stockholders' Equity and Partners' Capital (Details) (USD $)	3 Months Ended			0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014		5-May-15	Feb. 28, 2014	Dec. 31, 2014
Common Stock Dividends
Dividends declared per common share (in usd per share)	$0.29	$0.29	[1]
LTIP Units
Incentive Plan
Nonvested awards, total compensation cost not yet recognized	$4,500,000
Contingent units	225,000
Number of units outstanding (in shares)	225,000					225,000
Weighted average grant date fair value of units outstanding (in usd per share)	$20					$20
Restricted Stock Common Stock
Incentive Plan
Nonvested awards, total compensation cost not yet recognized	7,100,000
Number of units outstanding (in shares)	514,136					463,050
Weighted average grant date fair value of units outstanding (in usd per share)	$22.60					$20.90
Allocated share-based compensation expense	1,900,000	1,400,000
Period for recognition	2 years 1 month 6 days
2006 Incentive Plan
Incentive Plan
Number of shares authorized	5,000,000
Number of shares available for grant	2,126,745
Subsequent Event
Common Stock Dividends
Dividends declared per common share (in usd per share)				$0.29
At the Market
Common Stock Offerings
Remaining available amount of common stock for issuance	256,600,000
At the Market | Maximum
Common Stock Offerings
Maximum amount of common stock authorized					$300,000,000
[1]	For the three months ended March 31, 2014, amounts have been adjusted retroactively to reflect a 1-for-2 stock split effected December 15, 2014.

Stockholders_Equity_and_Partne3

Stockholders' Equity and Partners' Capital - Restricted Common Stock Activity (Details) (Restricted Stock Common Stock, USD $)	3 Months Ended
	Mar. 31, 2015
Restricted Stock Common Stock
Restricted Common Stock
Balance as of beginning of period (in shares)	463,050
Granted (in shares)	172,115
Vested (in shares)	-113,029
Forfeited (in shares)	-8,000
Balance as of end of period (in shares)	514,136
Weighted Average Grant Date Fair Value
Balance as of beginning of period (in usd per share)	$20.90
Granted (in usd per share)	$26.98
Vested (in usd per share)	$21.99
Forfeited (in usd per share)	$22.08
Balance as of end of period (in usd per share)	$22.60

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments - Assets and Liabilities at Fair Value (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative financial instruments, asset	$194	$1,714
Derivative financial instruments, liability	3,378	2,888
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative financial instruments, asset	194	1,714
Derivative financial instruments, liability	3,378	2,888
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets and Liabilities (Level 1 )
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative financial instruments, asset	0	0
Derivative financial instruments, liability	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative financial instruments, asset	194	1,714
Derivative financial instruments, liability	3,378	2,888
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Derivative financial instruments, asset	0	0
Derivative financial instruments, liability	$0	$0

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt	$1,458,598	$1,412,461
Fair Value Level 2 | Carrying Amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt	1,458,598	1,412,461
Fair Value Level 2 | Fair Value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Debt	$1,507,720	$1,447,432

Per_Share_Data_of_HTA_Details

Per Share Data of HTA (Details) (USD $)	0 Months Ended	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 15, 2014	Mar. 31, 2015		Mar. 31, 2014
Numerator:
Net income		$6,942		$5,434
Net income attributable to noncontrolling interests		-138	[1]	-142	[1]
Net income attributable to common stockholders/unitholders		$6,804		$5,292
Denominator:
Weighted average number of shares/units outstanding — basic		125,175		118,644	[2]
Dilutive shares		1,930		1,268	[2]
Weighted average number of shares/units outstanding — diluted		127,105		119,912	[2]
Earnings per common share - basic
Net income attributable to common stockholders (usd per share)		$0.05		$0.04	[2]
Earnings per common share - diluted
Net income attributable to common stockholders (usd per share)		$0.05		$0.04	[2]
Reverse stock split conversion ratio	0.5
[1]	Includes amounts attributable to redeemable noncontrolling interests.
[2]	For the three months ended March 31, 2014, amounts have been adjusted retroactively to reflect a 1-for-2 stock split effected December 15, 2014.

Per_Unit_Data_of_HTALP_Details

Per Unit Data of HTALP (Details) (USD $)	0 Months Ended	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Dec. 15, 2014	Mar. 31, 2015		Mar. 31, 2014
Numerator:
Net income		$6,942		$5,434
Net income attributable to noncontrolling interests		-138	[1]	-142	[1]
Net income attributable to common stockholders/unitholders		6,804		5,292
Denominator:
Weighted average number of shares/units outstanding — basic		125,175		118,644	[2]
Dilutive units		1,930		1,268	[2]
Weighted average number of shares/units outstanding — diluted		127,105		119,912	[2]
Earnings per common unit - basic:
Net income attributable to common unitholders (usd per share)		$0.05		$0.04	[2]
Earnings per common unit - diluted:
Net income attributable to common unitholders (usd per share)		$0.05		$0.04	[2]
Reverse stock split conversion ratio	0.5
Healthcare Trust of America Holdings, LP (HTALP)
Numerator:
Net income		6,942		5,434
Net income attributable to noncontrolling interests		-33		-38
Net income attributable to common stockholders/unitholders		$6,909		$5,396
Denominator:
Weighted average number of shares/units outstanding — basic		126,330		120,170	[2]
Dilutive units		0		0	[2]
Weighted average number of shares/units outstanding — diluted		126,330		120,170	[2]
Earnings per common unit - basic:
Net income attributable to common unitholders (usd per share)		$0.05		$0.04	[2]
Earnings per common unit - diluted:
Net income attributable to common unitholders (usd per share)		$0.05		$0.04	[2]
Reverse stock split conversion ratio	0.5
[1]	Includes amounts attributable to redeemable noncontrolling interests.
[2]	For the three months ended March 31, 2014, amounts have been adjusted retroactively to reflect a 1-for-2 stock split effected December 15, 2014.

Supplemental_Cash_Flow_Informa2

Supplemental Cash Flow Information (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Supplemental Disclosure of Cash Flow Information:
Interest paid	$13,238	$8,235
Income taxes paid	99	58
Investing Activities:
Accrued capital expenditures	1,464	2,272
Financing Activities:
Dividend distributions declared, but not paid	$36,309	$34,148