Healthcare Trust of America (HTA) 10-Q 30 Oct 19 2019 Q3 Quarterly report Financial data

Cover Page

Cover Page - shares	9 Months Ended
	Sep. 30, 2019	Oct. 21, 2019
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2019
Document Transition Report	false
Entity File Number	001-35568
Entity Registrant Name	HEALTHCARE TRUST OF AMERICA, INC.
Entity Incorporation, State or Country Code	MD
Entity Tax Identification Number	20-4738467
Entity Address, Address Line One	16435 N. Scottsdale Road, Suite 320,
Entity Address, City or Town	Scottsdale,
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85254
City Area Code	(480)
Local Phone Number	998-3478
Title of 12(b) Security	Common stock, $0.01 par value
Trading Symbol	HTA
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		207,185,978
Entity Central Index Key	0001360604
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Current Fiscal Year End Date	--12-31
Healthcare Trust of America Holdings, LP (HTALP)
Entity Information [Line Items]
Entity File Number	333-190916
Entity Registrant Name	HEALTHCARE TRUST OF AMERICA HOLDINGS, LP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-4738347
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Central Index Key	0001495491
Amendment Flag	false
Document Fiscal Year Focus	2019
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Real estate investments:
Land	$ 513,946	$ 481,871
Building and improvements	6,003,172	5,787,152
Lease intangibles	606,946	599,864
Construction in progress	19,159	4,903
Real estate investments, gross	7,143,223	6,873,790
Accumulated depreciation and amortization	(1,390,752)	(1,208,169)
Real estate investments, net	5,752,471	5,665,621
Investment in unconsolidated joint venture	66,348	67,172
Cash and cash equivalents	12,748	126,221
Restricted cash	5,068	7,309
Receivables and other assets, net	230,163	223,415
Right-of-use assets, net	244,024	0
Other intangibles, net	12,176	98,738
Total assets	6,322,998	6,188,476
Liabilities:
Debt	2,665,691	2,541,232
Accounts payable and accrued liabilities	157,939	185,073
Derivative financial instruments - interest rate swaps	1,152	0
Security deposits, prepaid rent and other liabilities	43,036	59,567
Lease liabilities	200,945	0
Intangible liabilities, net	39,766	61,146
Total liabilities	3,108,529	2,847,018
Commitments and contingencies
Redeemable noncontrolling interests	0	6,544
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; 207,186,452 and 205,267,349 shares issued and outstanding as of September 30, 2019 and December 31, 2018, respectively	2,072	2,053
Additional paid-in capital	4,581,176	4,525,969
Accumulated other comprehensive income	1,798	307
Cumulative dividends in excess of earnings	(1,443,360)	(1,272,305)
Total stockholders’ equity	3,141,686	3,256,024
Noncontrolling interests	72,783	78,890
Total equity	3,214,469	3,334,914
Partners’ Capital:
Total liabilities and equity/partners' capital	6,322,998	6,188,476
Healthcare Trust of America Holdings, LP (HTALP)
Real estate investments:
Land	513,946	481,871
Building and improvements	6,003,172	5,787,152
Lease intangibles	606,946	599,864
Construction in progress	19,159	4,903
Real estate investments, gross	7,143,223	6,873,790
Accumulated depreciation and amortization	(1,390,752)	(1,208,169)
Real estate investments, net	5,752,471	5,665,621
Investment in unconsolidated joint venture	66,348	67,172
Cash and cash equivalents	12,748	126,221
Restricted cash	5,068	7,309
Receivables and other assets, net	230,163	223,415
Right-of-use assets, net	244,024	0
Other intangibles, net	12,176	98,738
Total assets	6,322,998	6,188,476
Liabilities:
Debt	2,665,691	2,541,232
Accounts payable and accrued liabilities	157,939	185,073
Derivative financial instruments - interest rate swaps	1,152	0
Security deposits, prepaid rent and other liabilities	43,036	59,567
Lease liabilities	200,945	0
Intangible liabilities, net	39,766	61,146
Total liabilities	3,108,529	2,847,018
Commitments and contingencies
Redeemable noncontrolling interests	0	6,544
Partners’ Capital:
Limited partners’ capital, 3,848,279 and 3,929,083 units issued and outstanding as of September 30, 2019 and December 31, 2018, respectively	72,513	78,620
General partners’ capital, 207,186,452 and 205,267,349 units issued and outstanding as of September 30, 2019 and December 31, 2018, respectively	3,141,956	3,256,294
Total partners’ capital	3,214,469	3,334,914
Total liabilities and equity/partners' capital	$ 6,322,998	$ 6,188,476

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 30, 2019	Dec. 31, 2018
Equity:
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	200,000,000	200,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	207,186,452	205,267,349
Common stock, shares outstanding (in shares)	207,186,452	205,267,349
Healthcare Trust of America Holdings, LP (HTALP)
Partners’ Capital:
Limited partner's capital, units issued (in shares)	3,848,279	3,929,083
Limited partner's capital, units outstanding (in shares)	3,848,279	3,929,083
General partner's capital, units issued (in shares)	207,186,452	205,267,349
General partner's capital, units outstanding (in shares)	207,186,452	205,267,349

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Rental income		$ 174,844	$ 175,038	$ 515,328	$ 523,826
Interest and other operating income		160	97	399	302
Total revenues		175,004	175,135	515,727	524,128
Expenses:
Rental		53,807	55,789	158,213	165,364
General and administrative		9,788	8,770	31,157	26,281
Transaction		522	346	858	933
Depreciation and amortization		73,820	70,568	211,730	210,064
Interest expense		24,625	24,834	72,601	77,392
Impairment		0	4,281	0	8,887
Total expenses		162,562	164,588	474,559	488,921
Gain (loss) on sale of real estate, net		0	166,372	(37)	166,372
Loss on extinguishment of debt, net		(21,646)	(1,092)	(21,646)	(1,092)
Income from unconsolidated joint venture		422	432	1,456	1,405
Other income		205	89	781	129
Net (loss) income		(8,577)	176,348	21,722	202,021
Net loss (income) attributable to noncontrolling interests	[1]	114	(3,362)	(486)	(3,887)
Net (loss) income attributable to common stockholders/unitholders		$ (8,463)	$ 172,986	$ 21,236	$ 198,134
Earnings per common share - basic
Net (loss) income attributable to common stockholders/unitholders (in dollars per share)		$ (0.04)	$ 0.83	$ 0.10	$ 0.96
Earnings per common share - diluted
Net (loss) income attributable to common stockholders/unitholders (in dollars per share)		$ (0.04)	$ 0.82	$ 0.10	$ 0.94
Weighted average common shares outstanding:
Basic (in shares/units)		205,277	207,513	205,156	205,950
Diluted (in shares/units)		205,277	211,444	209,026	209,968
Healthcare Trust of America Holdings, LP (HTALP)
Revenues:
Rental income		$ 174,844	$ 175,038	$ 515,328	$ 523,826
Interest and other operating income		160	97	399	302
Total revenues		175,004	175,135	515,727	524,128
Expenses:
Rental		53,807	55,789	158,213	165,364
General and administrative		9,788	8,770	31,157	26,281
Transaction		522	346	858	933
Depreciation and amortization		73,820	70,568	211,730	210,064
Interest expense		24,625	24,834	72,601	77,392
Impairment		0	4,281	0	8,887
Total expenses		162,562	164,588	474,559	488,921
Gain (loss) on sale of real estate, net		0	166,372	(37)	166,372
Loss on extinguishment of debt, net		(21,646)	(1,092)	(21,646)	(1,092)
Income from unconsolidated joint venture		422	432	1,456	1,405
Other income		205	89	781	129
Net (loss) income		(8,577)	176,348	21,722	202,021
Net loss (income) attributable to noncontrolling interests		0	(18)	(66)	(65)
Net (loss) income attributable to common stockholders/unitholders		$ (8,577)	$ 176,330	$ 21,656	$ 201,956
Earnings per common share - basic
Net (loss) income attributable to common stockholders/unitholders (in dollars per share)		$ (0.04)	$ 0.83	$ 0.10	$ 0.96
Earnings per common share - diluted
Net (loss) income attributable to common stockholders/unitholders (in dollars per share)		$ (0.04)	$ 0.83	$ 0.10	$ 0.96
Weighted average common shares outstanding:
Basic (in shares/units)		209,164	211,444	209,056	209,968
Diluted (in shares/units)		209,164	211,444	209,056	209,968
[1]	Includes amounts attributable to redeemable noncontrolling interests.

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net (loss) income	$ (8,577)	$ 176,348	$ 21,722	$ 202,021
Other comprehensive income (loss)
Change in unrealized gains (losses) on cash flow hedges	2,290		1,519
Change in unrealized gains (losses) on cash flow hedges		(732)		382
Total other comprehensive income (loss)	2,290	(732)	1,519	382
Total comprehensive (loss) income	(6,287)	175,616	23,241	202,403
Comprehensive loss (income) attributable to noncontrolling interests	71	(3,331)	(448)	(3,830)
Total comprehensive (loss) income attributable to common stockholders/unitholders	(6,216)	172,285	22,793	198,573
Healthcare Trust of America Holdings, LP (HTALP)
Net (loss) income	(8,577)	176,348	21,722	202,021
Other comprehensive income (loss)
Change in unrealized gains (losses) on cash flow hedges	2,290		1,519
Change in unrealized gains (losses) on cash flow hedges		(732)		382
Total other comprehensive income (loss)	2,290	(732)	1,519	382
Total comprehensive (loss) income	(6,287)	175,616	23,241	202,403
Comprehensive loss (income) attributable to noncontrolling interests	0	(18)	(66)	(65)
Total comprehensive (loss) income attributable to common stockholders/unitholders	$ (6,287)	$ 175,598	$ 23,175	$ 202,338

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Total Stockholders’ Equity	Common Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Cumulative Dividends in Excess of Earnings	Noncontrolling Interests
Beginning balance at Dec. 31, 2017	$ 3,363,448	$ 3,278,782	$ 2,049	$ 4,508,528	$ 274	$ (1,232,069)	$ 84,666
Beginning balance (in shares) at Dec. 31, 2017			204,892,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based award transactions, net	3,507	3,507	$ 3	3,504
Share-based award transactions, net (in shares)			289,000
Repurchase and cancellation of common stock	(2,709)	(2,709)	$ (1)	(2,708)
Repurchase and cancellation of common stock (in shares)			(92,000)
Redemption of noncontrolling interest and other	0	2,413	$ 1	2,412			(2,413)
Redemption of noncontrolling interest and other (in shares)			91,000
Dividends declared	(63,866)	(62,559)				(62,559)	(1,307)
Net loss	9,983	9,802				9,802	181
Other comprehensive income (loss)	900	883			883		17
Ending balance at Mar. 31, 2018	3,311,263	3,230,119	$ 2,052	4,511,736	1,157	(1,284,826)	81,144
Ending balance (in shares) at Mar. 31, 2018			205,180,000
Beginning balance at Dec. 31, 2017	3,363,448	3,278,782	$ 2,049	4,508,528	274	(1,232,069)	84,666
Beginning balance (in shares) at Dec. 31, 2017			204,892,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	382
Ending balance at Sep. 30, 2018	3,433,529	3,353,627	$ 2,072	4,574,913	648	(1,224,006)	79,902
Ending balance (in shares) at Sep. 30, 2018			207,231,000
Beginning balance at Mar. 31, 2018	3,311,263	3,230,119	$ 2,052	4,511,736	1,157	(1,284,826)	81,144
Beginning balance (in shares) at Mar. 31, 2018			205,180,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in HTA	72,814	72,814	$ 25	72,789
Issuance of common stock in HTA (in shares)			2,550,000
Share-based award transactions, net	2,196	2,196		2,196
Share-based award transactions, net (in shares)			7,000
Repurchase and cancellation of common stock	(8,844)	(8,844)	$ (3)	(8,841)
Repurchase and cancellation of common stock (in shares)			(337,000)
Redemption of noncontrolling interest and other	0	2,494	$ 1	2,493			(2,494)
Redemption of noncontrolling interest and other (in shares)			93,000
Dividends declared	(64,532)	(63,279)				(63,279)	(1,253)
Net loss	15,643	15,346				15,346	297
Other comprehensive income (loss)	214	210			210		4
Ending balance at Jun. 30, 2018	3,328,754	3,251,056	$ 2,075	4,580,373	1,367	(1,332,759)	77,698
Ending balance (in shares) at Jun. 30, 2018			207,493,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based award transactions, net	2,538	2,127		2,127			411
Share-based award transactions, net (in shares)			27,000
Repurchase and cancellation of common stock	(7,878)	(7,878)	$ (3)	(7,875)
Repurchase and cancellation of common stock (in shares)			(300,000)
Redemption of noncontrolling interest and other	0	288		288			(288)
Redemption of noncontrolling interest and other (in shares)			11,000
Dividends declared	(65,483)	(64,233)				(64,233)	(1,250)
Net loss	176,330	172,986				172,986	3,344
Other comprehensive income (loss)	(732)	(719)			(719)		(13)
Ending balance at Sep. 30, 2018	3,433,529	3,353,627	$ 2,072	4,574,913	648	(1,224,006)	79,902
Ending balance (in shares) at Sep. 30, 2018			207,231,000
Beginning balance at Dec. 31, 2018	$ 3,334,914	3,256,024	$ 2,053	4,525,969	307	(1,272,305)	78,890
Beginning balance (in shares) at Dec. 31, 2018	205,267,349		205,267,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based award transactions, net	$ 3,389	3,389	$ 3	3,386
Share-based award transactions, net (in shares)			293,000
Repurchase and cancellation of common stock	(11,926)	(11,926)	$ (5)	(11,921)
Repurchase and cancellation of common stock (in shares)			(478,000)
Redemption of noncontrolling interest and other	0	527		527			(527)
Redemption of noncontrolling interest and other (in shares)			18,000
Dividends declared	(64,884)	(63,578)				(63,578)	(1,306)
Net loss	13,673	13,440				13,440	233
Other comprehensive income (loss)	(390)	(382)			(382)		(8)
Ending balance at Mar. 31, 2019	3,274,776	3,197,494	$ 2,051	4,517,961	(75)	(1,322,443)	77,282
Ending balance (in shares) at Mar. 31, 2019			205,100,000
Beginning balance at Dec. 31, 2018	$ 3,334,914	3,256,024	$ 2,053	4,525,969	307	(1,272,305)	78,890
Beginning balance (in shares) at Dec. 31, 2018	205,267,349		205,267,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	$ 1,519
Ending balance at Sep. 30, 2019	$ 3,214,469	3,141,686	$ 2,072	4,581,176	1,798	(1,443,360)	72,783
Ending balance (in shares) at Sep. 30, 2019	207,186,452		207,186,000
Beginning balance at Mar. 31, 2019	$ 3,274,776	3,197,494	$ 2,051	4,517,961	(75)	(1,322,443)	77,282
Beginning balance (in shares) at Mar. 31, 2019			205,100,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of OP Units in HTALP	2,603						2,603
Share-based award transactions, net	2,102	2,102		2,102
Share-based award transactions, net (in shares)			(3,000)
Repurchase and cancellation of common stock	(169)	(169)		(169)
Repurchase and cancellation of common stock (in shares)			(6,000)
Redemption of noncontrolling interest and other	424	1,209		1,209			(785)
Redemption of noncontrolling interest and other (in shares)			27,000
Dividends declared	(64,913)	(63,579)				(63,579)	(1,334)
Net loss	16,560	16,259				16,259	301
Other comprehensive income (loss)	(381)	(374)			(374)		(7)
Ending balance at Jun. 30, 2019	3,231,002	3,152,942	$ 2,051	4,521,103	(449)	(1,369,763)	78,060
Ending balance (in shares) at Jun. 30, 2019			205,118,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of limited partner OP Units in connection with acquisitions	2,000						2,000
Issuance of common stock in HTA	51,804	51,804	$ 19	51,785
Issuance of common stock in HTA (in shares)			1,840,000
Share-based award transactions, net	2,337	2,337		2,337
Share-based award transactions, net (in shares)			31,000
Repurchase and cancellation of common stock	(65)	(65)		(65)
Repurchase and cancellation of common stock (in shares)			(2,000)
Redemption of noncontrolling interest and other	67	6,018	$ 2	6,016			(5,951)
Redemption of noncontrolling interest and other (in shares)			199,000
Dividends declared	(66,389)	(65,134)				(65,134)	(1,255)
Net loss	(8,577)	(8,463)				(8,463)	(114)
Other comprehensive income (loss)	2,290	2,247			2,247		43
Ending balance at Sep. 30, 2019	$ 3,214,469	$ 3,141,686	$ 2,072	$ 4,581,176	$ 1,798	$ (1,443,360)	$ 72,783
Ending balance (in shares) at Sep. 30, 2019	207,186,452		207,186,000

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Statement of Stockholders' Equity [Abstract]
Dividends declared (in dollars per share)	$ 0.315	$ 0.310	$ 0.310	$ 0.310	$ 0.305	$ 0.305

CONDENSED CONSOLIDATED STATEM_5

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL - USD ($) $ in Thousands	Total	Healthcare Trust of America Holdings, LP (HTALP)	Healthcare Trust of America Holdings, LP (HTALP)General Partners’ Capital	Healthcare Trust of America Holdings, LP (HTALP)Limited Partners’ Capital
Balance as of beginning of period at Dec. 31, 2017		$ 3,363,448	$ 3,279,052	$ 84,396
Balance as of beginning of period (in shares) at Dec. 31, 2017			204,892,000	4,124,000
Increase (Decrease) in Partners' Capital [Roll Forward]
Share-based award transactions, net		3,507	$ 3,507
Share-based award transactions, net (in shares)			289,000
Redemption and cancellation of general partner OP Units		(2,709)	$ (2,709)
Redemption and cancellation of general partner units (in shares)			(92,000)
Redemption of limited partner OP Units and other		0	$ 2,413	$ (2,413)
Redemption of limited partner units and other (in shares)			91,000	(91,000)
Distributions declared		(63,866)	$ (62,559)	$ (1,307)
Net (loss) income		9,983	9,802	181
Other comprehensive income (loss)	$ 900	900	883	17
Balance as of end of period at Mar. 31, 2018		3,311,263	$ 3,230,389	$ 80,874
Balance as of end of period (in shares) at Mar. 31, 2018			205,180,000	4,033,000
Balance as of beginning of period at Dec. 31, 2017		3,363,448	$ 3,279,052	$ 84,396
Balance as of beginning of period (in shares) at Dec. 31, 2017			204,892,000	4,124,000
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of general partner units	0
Net (loss) income	198,134	201,956
Other comprehensive income (loss)	382	382
Balance as of end of period at Sep. 30, 2018		3,433,529	$ 3,353,897	$ 79,632
Balance as of end of period (in shares) at Sep. 30, 2018			207,231,000	3,929,000
Balance as of beginning of period at Dec. 31, 2017		3,363,448	$ 3,279,052	$ 84,396
Balance as of beginning of period (in shares) at Dec. 31, 2017			204,892,000	4,124,000
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of general partner units	0
Balance as of end of period at Dec. 31, 2018		3,334,914	$ 3,256,294	$ 78,620
Balance as of end of period (in shares) at Dec. 31, 2018			205,267,000	3,929,000
Balance as of beginning of period at Mar. 31, 2018		3,311,263	$ 3,230,389	$ 80,874
Balance as of beginning of period (in shares) at Mar. 31, 2018			205,180,000	4,033,000
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of general partner units		72,814	$ 72,814
Issuance of partner units, net (in shares)			2,550,000
Share-based award transactions, net		2,196	$ 2,196
Share-based award transactions, net (in shares)			7,000
Redemption and cancellation of general partner OP Units		(8,844)	$ (8,844)
Redemption and cancellation of general partner units (in shares)			(337,000)
Redemption of limited partner OP Units and other		0	$ 2,494	$ (2,494)
Redemption of limited partner units and other (in shares)			93,000	(93,000)
Distributions declared		(64,532)	$ (63,279)	$ (1,253)
Net (loss) income		15,643	15,346	297
Other comprehensive income (loss)	214	214	210	4
Balance as of end of period at Jun. 30, 2018		3,328,754	$ 3,251,326	$ 77,428
Balance as of end of period (in shares) at Jun. 30, 2018			207,493,000	3,940,000
Increase (Decrease) in Partners' Capital [Roll Forward]
Share-based award transactions, net		2,538	$ 2,127	$ 411
Share-based award transactions, net (in shares)			27,000
Redemption and cancellation of general partner OP Units		(7,878)	$ (7,878)
Redemption and cancellation of general partner units (in shares)			(300,000)
Redemption of limited partner OP Units and other			$ 288	$ (288)
Redemption of limited partner units and other (in shares)			11,000	(11,000)
Distributions declared		(65,483)	$ (64,233)	$ (1,250)
Net (loss) income	172,986	176,330	172,986	3,344
Other comprehensive income (loss)	(732)	(732)	(719)	(13)
Balance as of end of period at Sep. 30, 2018		3,433,529	$ 3,353,897	$ 79,632
Balance as of end of period (in shares) at Sep. 30, 2018			207,231,000	3,929,000
Balance as of beginning of period at Dec. 31, 2018		3,334,914	$ 3,256,294	$ 78,620
Balance as of beginning of period (in shares) at Dec. 31, 2018			205,267,000	3,929,000
Increase (Decrease) in Partners' Capital [Roll Forward]
Share-based award transactions, net		3,389	$ 3,389
Share-based award transactions, net (in shares)			293,000
Redemption and cancellation of general partner OP Units		(11,926)	$ (11,926)
Redemption and cancellation of general partner units (in shares)			(478,000)
Redemption of limited partner OP Units and other		0	$ 527	$ (527)
Redemption of limited partner units and other (in shares)			18,000	(18,000)
Distributions declared		(64,884)	$ (63,578)	$ (1,306)
Net (loss) income		13,673	13,440	233
Other comprehensive income (loss)	(390)	(390)	(382)	(8)
Balance as of end of period at Mar. 31, 2019		3,274,776	$ 3,197,764	$ 77,012
Balance as of end of period (in shares) at Mar. 31, 2019			205,100,000	3,911,000
Balance as of beginning of period at Dec. 31, 2018		3,334,914	$ 3,256,294	$ 78,620
Balance as of beginning of period (in shares) at Dec. 31, 2018			205,267,000	3,929,000
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of general partner units	2,603
Net (loss) income	21,236	21,656
Other comprehensive income (loss)	1,519	1,519
Balance as of end of period at Sep. 30, 2019		3,214,469	$ 3,141,956	$ 72,513
Balance as of end of period (in shares) at Sep. 30, 2019			207,186,000	3,848,000
Balance as of beginning of period at Mar. 31, 2019		3,274,776	$ 3,197,764	$ 77,012
Balance as of beginning of period (in shares) at Mar. 31, 2019			205,100,000	3,911,000
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of general partner units		2,603		$ 2,603
Issuance of partner units, net (in shares)				91,000
Share-based award transactions, net		2,102	$ 2,102
Share-based award transactions, net (in shares)			(3,000)
Redemption and cancellation of general partner OP Units		(169)	$ (169)
Redemption and cancellation of general partner units (in shares)			(6,000)
Redemption of limited partner OP Units and other		424	$ 1,209	$ (785)
Redemption of limited partner units and other (in shares)			27,000	(27,000)
Distributions declared		(64,913)	$ (63,579)	$ (1,334)
Net (loss) income		16,560	16,259	301
Other comprehensive income (loss)	(381)	(381)	(374)	(7)
Balance as of end of period at Jun. 30, 2019		3,231,002	$ 3,153,212	$ 77,790
Balance as of end of period (in shares) at Jun. 30, 2019			205,118,000	3,975,000
Increase (Decrease) in Partners' Capital [Roll Forward]
Issuance of general partner units		51,804	$ 51,804
Issuance of partner units, net (in shares)			1,840,000
Issuance of limited partner OP Units in connection with acquisitions	$ 2,000	2,000		$ 2,000
Issuance of limited partner units in connection with acquisitions (in shares)	72,294			72,000
Share-based award transactions, net		2,337	$ 2,337
Share-based award transactions, net (in shares)			31,000
Redemption and cancellation of general partner OP Units		(65)	$ (65)
Redemption and cancellation of general partner units (in shares)			(2,000)
Redemption of limited partner OP Units and other		67	$ 6,018	$ (5,951)
Redemption of limited partner units and other (in shares)			199,000	(199,000)
Distributions declared		(66,389)	$ (65,134)	$ (1,255)
Net (loss) income	$ (8,463)	(8,577)	(8,463)	(114)
Other comprehensive income (loss)	$ 2,290	2,290	2,247	43
Balance as of end of period at Sep. 30, 2019		$ 3,214,469	$ 3,141,956	$ 72,513
Balance as of end of period (in shares) at Sep. 30, 2019			207,186,000	3,848,000

CONDENSED CONSOLIDATED STATEM_6

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (Parenthetical) - $ / shares	3 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Dividends declared (in dollars per share)	$ 0.315	$ 0.310	$ 0.310	$ 0.310	$ 0.305	$ 0.305
Healthcare Trust of America Holdings, LP (HTALP)
Dividends declared (in dollars per share)	$ 0.315	$ 0.310	$ 0.310	$ 0.310	$ 0.305	$ 0.305

CONDENSED CONSOLIDATED STATEM_7

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net income	$ 21,722	$ 202,021
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	203,392	203,550
Share-based compensation expense	7,828	7,830
Impairment	0	8,887
Income from unconsolidated joint venture	(1,456)	(1,405)
Distributions from unconsolidated joint venture	2,225	1,680
Loss (gain) on sale of real estate, net	37	(166,372)
Loss on extinguishment of debt, net	21,646	1,092
Changes in operating assets and liabilities:
Receivables and other assets, net	(2,148)	(7,820)
Accounts payable and accrued liabilities	(19,783)	(5,932)
Prepaid rent and other liabilities	4,919	(2,780)
Net cash provided by operating activities	238,382	240,751
Cash flows from investing activities:
Investments in real estate	(223,168)	(17,389)
Development of real estate	(14,253)	(29,593)
Proceeds from the sale of real estate	1,193	302,440
Capital expenditures	(59,533)	(61,136)
Collection of real estate notes receivable	551	524
Net cash (used in) provided by investing activities	(295,210)	194,846
Cash flows from financing activities:
Borrowings on unsecured revolving credit facility	365,000	145,000
Payments on unsecured revolving credit facility	(350,000)	(145,000)
Proceeds from unsecured senior notes	906,927	0
Payments on unsecured senior notes	(700,000)	0
Payments on secured mortgage loans	(96,765)	(173,212)
Deferred financing costs	(6,954)	(782)
Debt extinguishment costs	(18,383)	(1,909)
Security deposits	0	499
Proceeds from issuance of common stock	51,804	72,814
Issuance of operating/limited partnership units	0	411
Repurchase and cancellation of common stock	(12,159)	(19,431)
Dividends paid	(190,853)	(188,414)
Distributions paid to noncontrolling interest of limited partners	(7,503)	(3,976)
Net cash used in financing activities	(58,886)	(314,000)
Net change in cash, cash equivalents and restricted cash	(115,714)	121,597
Cash, cash equivalents and restricted cash - beginning of period	133,530	118,560
Cash, cash equivalents and restricted cash - end of period	17,816	240,157
Healthcare Trust of America Holdings, LP (HTALP)
Cash flows from operating activities:
Net income	21,722	202,021
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	203,392	203,550
Share-based compensation expense	7,828	7,830
Impairment	0	8,887
Income from unconsolidated joint venture	(1,456)	(1,405)
Distributions from unconsolidated joint venture	2,225	1,680
Loss (gain) on sale of real estate, net	37	(166,372)
Loss on extinguishment of debt, net	21,646	1,092
Changes in operating assets and liabilities:
Receivables and other assets, net	(2,148)	(7,820)
Accounts payable and accrued liabilities	(19,783)	(5,932)
Prepaid rent and other liabilities	4,919	(2,780)
Net cash provided by operating activities	238,382	240,751
Cash flows from investing activities:
Investments in real estate	(223,168)	(17,389)
Development of real estate	(14,253)	(29,593)
Proceeds from the sale of real estate	1,193	302,440
Capital expenditures	(59,533)	(61,136)
Collection of real estate notes receivable	551	524
Net cash (used in) provided by investing activities	(295,210)	194,846
Cash flows from financing activities:
Borrowings on unsecured revolving credit facility	365,000	145,000
Payments on unsecured revolving credit facility	(350,000)	(145,000)
Proceeds from unsecured senior notes	906,927	0
Payments on unsecured senior notes	(700,000)	0
Payments on secured mortgage loans	(96,765)	(173,212)
Deferred financing costs	(6,954)	(782)
Debt extinguishment costs	(18,383)	(1,909)
Security deposits	0	499
Proceeds from issuance of general partner units	51,804	72,814
Issuance of operating/limited partnership units	0	411
Repurchase and cancellation of general partner units	(12,159)	(19,431)
Distributions paid to general partner	(190,853)	(188,414)
Distributions paid to limited partners and redeemable noncontrolling interests	(7,503)	(3,976)
Net cash used in financing activities	(58,886)	(314,000)
Net change in cash, cash equivalents and restricted cash	(115,714)	121,597
Cash, cash equivalents and restricted cash - beginning of period	133,530	118,560
Cash, cash equivalents and restricted cash - end of period	$ 17,816	$ 240,157

Organization and Description of

Organization and Description of Business	9 Months Ended
	Sep. 30, 2019
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, in an umbrella partnership, or “UPREIT” structure. HTA has qualified and intends to continue to be taxed as a REIT for federal income tax purposes under the applicable sections of the Internal Revenue Code. We own real estate primarily consisting of medical office buildings (“MOBs”) located on or adjacent to hospital campuses or in off-campus, community core outpatient locations across 33 states within the United States. We lease space to tenants primarily consisting of health systems, research and academic institutions, and various sized physician practices. Through our full-service operating platform, we provide leasing, asset management, acquisitions, development and other related services for our properties.

Summary of Significant Accounti

Summary of Significant Accounting Policies	9 Months Ended
	Sep. 30, 2019
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 generally accepted accounting principles 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. Reclassifications Certain prior year amounts related to the presentation of interest expense on the accompanying condensed consolidated statements of operations have been reclassified to conform to the current year presentation. 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 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 2018 Annual Report on Form 10-K. Principles of Consolidation The condensed consolidated financial statements include the accounts of our subsidiaries and consolidated joint venture arrangements. The portions of the HTALP operating partnership not owned by us are presented as noncontrolling interests on the accompanying condensed consolidated balance sheets and statements of operations, condensed consolidated statements of comprehensive income, and condensed consolidated statements of equity and changes in partners’ capital. Holders of OP Units are considered to be noncontrolling interest holders in HTALP and their ownership interests are reflected as equity on the accompanying condensed consolidated balance sheets. Further, a portion of the earnings and losses of HTALP are allocated to noncontrolling interest holders based on their respective ownership percentages. Upon conversion of OP Units to common stock, any difference between the fair value of the common stock issued and the carrying value of the OP Units converted to common stock is recorded as a component of equity. As of September 30, 2019 and December 31, 2018 , there were approximately 3.8 million and 3.9 million , respectively, of OP Units issued and outstanding. VIEs are entities where investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support or where equity investors, as a group, lack one of the following: (i) the power to direct the activities that most significantly impact the entity’s economic performance; (ii) the obligation to absorb the expected losses of the entity; and (iii) the right to receive the expected returns of the entity. We consolidate our investment in VIEs when we determine that we are the primary beneficiary. A primary beneficiary is one that has both: (i) the power to direct the activities of the VIE that most significantly impacts the entity’s economic performance; and (ii) the obligation to absorb losses or the right to receive benefits of the VIE that could be significant to the entity. The HTALP operating partnership and our other joint venture arrangements are VIEs because the limited partners in those partnerships, although entitled to vote on certain matters, do not possess kick-out rights or substantive participating rights. Additionally, we determined that we are the primary beneficiary of our VIEs. Accordingly, we consolidate our interests in the HTALP operating partnership and in our other joint venture arrangements. However, because we hold what is deemed a majority voting interest in the HTALP operating partnership and our other joint venture arrangements, it qualifies for the exemption from providing certain disclosure requirements associated with investments in VIEs. We will evaluate on an ongoing basis the need to consolidate entities based on the standards set forth in GAAP as described above. Cash, Cash Equivalents and Restricted Cash Cash and cash equivalents consist of all highly liquid investments with a maturity of three months or less when purchased. Restricted cash is comprised of: (i) reserve accounts for property taxes, insurance, capital and tenant improvements; (ii) collateral accounts for debt and interest rate swaps; and (iii) deposits for future investments. The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the accompanying condensed consolidated balance sheets to the combined amounts shown on the accompanying condensed consolidated statements of cash flows (in thousands): September 30, 2019 2018 Cash and cash equivalents $ 12,748 $ 225,518 Restricted cash 5,068 14,639 Total cash, cash equivalents and restricted cash $ 17,816 $ 240,157 Revenue Recognition Minimum annual rental revenue is recognized on a straight-line basis over the term of the related lease (including rent holidays). Differences between rental income recognized and amounts contractually due under the lease agreements are recorded as straight-line rent receivables. Tenant reimbursements, which is comprised of additional amounts recoverable from tenants for real estate taxes, common area maintenance and other certain operating expenses are recognized as revenue on a gross basis in the period in which the related recoverable expenses are incurred. We accrue revenue corresponding to these expenses on a quarterly basis to adjust recorded amounts to our best estimate of the final annual amounts to be billed. Subsequent to year-end, on a calendar year basis, we perform reconciliations on a lease-by-lease basis and bill or credit each tenant for any differences between the estimated expenses we billed and the actual expenses that were incurred. We recognize lease termination fees when there is a signed termination letter agreement, all of the conditions of the agreement have been met, and the tenant is no longer occupying the property. Rental income is reported net of amortization of inducements. The revenue recognition process is based on a five-step model to account for revenue arising from contracts with customers as outlined in Topic 606. We recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. We have identified all of our revenue streams and we have concluded that rental income from leasing arrangements represents a substantial portion of our revenue and is governed and evaluated with the adoption of Topic 842. Investments in Real Estate Depreciation expense of buildings and improvements for the three months ended September 30, 2019 and 2018 was $54.9 million and $50.2 million , respectively. Depreciation expense of buildings and improvements for the nine months ended September 30, 2019 and 2018 was $158.9 million and $151.5 million , respectively. Leases As a lessor, we lease space in our MOBs primarily to medical enterprises for terms ranging from three to seven years in length. The assets underlying these leases consist of buildings and associated land which are included as real estate investments on our accompanying condensed consolidated balance sheets. All of our leases for which we are the lessor are classified as operating leases under Topic 842. Leases, for which we are the lessee, are classified as separate components on our accompanying condensed consolidated balance sheets. Operating leases are included as right-of-use (“ROU”) assets, net, with a corresponding lease liability. A lease liability is recognized for our obligation related to the lease and an ROU asset represents our right to use the underlying asset over the lease term. Refer to Note 7 - Leases in the accompanying notes to the condensed consolidated financial statements for more detail relating to our leases. Redeemable Noncontrolling Interests We account for redeemable equity securities in accordance with ASU 2009-04 Liabilities (Topic 480): Accounting for Redeemable Equity Instruments, which requires that equity securities redeemable at the option of the holder, not solely within our control, be classified outside permanent stockholders’ equity. We classify redeemable equity securities as redeemable noncontrolling interests on the accompanying condensed consolidated balances sheets. Accordingly, we record the carrying amount at the greater of the initial carrying amount (increased or decreased for the noncontrolling interest’s share of net income or loss and distributions) or the redemption value. We measure the redemption value and record an adjustment to the carrying value of the equity securities as a component of redeemable noncontrolling interest. As of September 30, 2019 , all redeemable noncontrolling interests have either converted their interest to OP Units or received cash proceeds due to the last exercisable put option that lapsed on June 30, 2019. As of December 31, 2018 , we had redeemable noncontrolling interests of $6.5 million . Refer to Note 11 - Redeemable Noncontrolling Interests in the accompanying notes to the condensed consolidated financial statements for more detail relating to our redeemable noncontrolling interests. Unconsolidated Joint Ventures We account for our investments in unconsolidated joint ventures using the equity method of accounting because we have the ability to exercise significant influence, but not control, over the financial and operational policy decisions of the investments. Using the equity method of accounting, the initial investment is recognized at cost and subsequently adjusted for our share of the net income and any distributions from the joint venture. As of September 30, 2019 and December 31, 2018 , we had a 50% interest in one such investment with a carrying value and maximum exposure to risk of $66.3 million and $67.2 million , respectively, which is recorded in investment in unconsolidated joint venture on the accompanying condensed consolidated balance sheets. We record our share of net income in income from unconsolidated joint venture on the accompanying condensed consolidated statements of operations. For the three months ended September 30, 2019 and 2018 , we recognized income of $0.4 million and $0.4 million , respectively. For the nine months ended September 30, 2019 and 2018 , we recognized income of $1.5 million and $1.4 million , respectively. Recently Issued or Adopted Accounting Pronouncements Recently Adopted Accounting Pronouncements Topic 842, Leases In February 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2016-02, codified as ASC 842 - Leases (Topic 842). This new standard superseded ASC Topic 840 and states that companies will be required to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements. Topic 842 requires qualitative and quantitative disclosures to supplement the amounts recorded in the financial statements so that users can understand the nature of the entity’s leasing activities, including significant judgments and changes in judgments. We adopted Topic 842 as of January 1, 2019 and elected to use the optional transition method, which allows us to recognize a cumulative-effect adjustment to the opening balance of retained earnings at January 1, 2019. Using the optional transition method, the cumulative effect adjustment was immaterial and as such no adjustment was made to beginning retained earnings. In addition, it was determined in our analysis that finance leases which we are the lessee were immaterial and as such were excluded from our disclosures. In addition to electing the optional transition method above, we also elected the following practical expedients offered by the FASB which will allow us: • to not reassess: (i) whether an expired or existing contract contains a lease arrangement; (ii) lease classification related to expired or existing lease arrangements; or (iii) whether costs incurred on expired or existing leases qualify as initial direct costs; • to not separate, as the lessor, certain non-lease components, such as common area maintenance from lease revenue if the (i) timing and pattern of revenue recognition are the same for the non-lease component, and (ii) related lease component and the combined single lease component would be classified as an operating lease; • to exclude land easements from assessment in determining whether they meet the definition of a lease up to the time of adoption; and • to not record on our accompanying condensed consolidated balance sheets, lease liabilities and ROU assets with lease terms of 12 months or less. Lessee Impact Leases for which we are the lessee, including ground leases and corporate leases, which are primarily for office space, have been recorded on our accompanying condensed consolidated balance sheets as either finance or operating leases with lease liability obligations and corresponding ROU assets based on the present value of the minimum rental payments remaining as of the initial adoption date of January 1, 2019. Lessor Impact Topic 842 modifies the treatment of initial direct costs, which historically under Topic 840 have been capitalized upon meeting criteria provided for in that applicable guidance. These initial direct costs now under ASC 842 are eligible for capitalization only if they are incremental in nature, (i.e., would only be incurred if we enter into a new lease arrangement). Under this guidance, only commissions paid and other incurred costs incremental to our leasing activity qualify as initial direct costs. These costs, which were previously capitalized, have been classified as general and administrative expenses on our accompanying condensed consolidated statements of operations. For the three and nine months ended September 30, 2018 , we capitalized approximately $1.5 million and $3.7 million , respectively, of initial direct costs. Additionally, as part of Topic 842, ASU 2018-20 states that (i) a lessor must analyze sales (and other similar) tax laws on a jurisdiction-by-jurisdiction basis to determine whether those taxes are lessor costs or lessee costs and (ii) a lessor shall exclude from variable payments, lessor costs (i.e., property taxes, insurance) paid by a lessee directly to a third party. However, costs that are paid by a lessor directly to a third party and are reimbursed by a lessee are considered lessor costs that shall be accounted for by the lessor as variable payments. As a result of the adoption of Topic 842, we no longer record income or expense when the lessee pays the property taxes directly to a third party. For the three and nine months ended September 30, 2018 , we recognized approximately $3.5 million and $10.5 million , respectively, of tenant paid property taxes. Except where stated above, the adoption of Topic 842 did not have a substantive impact on our results of operations and cash flows and no significant impact on any of our debt covenants. ASU 2018-07, Compensation - Stock Compensation; Improvements to Nonemployee Share-Based Payment Accounting In June 2018, the FASB issued ASU 2018-07, which expands the scope of Topic 718. The amendments specify that ASU 2018-07 applies to all share-based payment transactions in which a grantor acquires goods or services to be used or consumed in a grantor’s own operations by issuing share-based payment awards. ASU 2018-07 also clarifies that it does not apply to share-based payments used to effectively provide (i) financing to the issuer or (ii) awards granted in conjunction with selling goods or services to customers as part of a contract accounted for under Topic 606. We adopted ASU 2018-07 on January 1, 2019 (the effective date) and did not have any reclassifications or material impacts on our consolidated financial statements as a result of this adoption. Recently Issued Accounting Pronouncements ASU 2016-13, Financial Instruments Credit Losses; Measurement of Credit Losses on Financial Instruments and ASU 2018-19, 2019-04 and 2019-05, Improvements to Topic 326, Financial Instruments-Credit Losses In June 2016, the FASB issued ASU 2016-13, which is intended to improve financial reporting by requiring more timely recognition of credit losses on loans and other financial instruments that are not accounted for at fair value through net income, including loans held for investment, held-to-maturity debt securities, trade and other receivables, net investment in leases and other such commitments. ASU 2016-13 requires that financial statement assets measured at an amortized cost be presented at the net amount expected to be collected through an allowance for credit losses that is deducted from the amortized cost basis. ASU 2018-19 also clarifies that receivables arising from operating leases are not within the scope of Subtopic 326-20. Instead, impairment of these receivables should be accounted for in accordance with Topic 842, Leases. ASU 2019-04 provides clarification on the measurement, presentation and disclosure of credit losses on financial assets. ASU 2019-05 provides an option to irrevocably elect the fair value option for certain financial assets previously measured at amortized cost basis for comparability to any new financial assets that elect the fair value option. We will adopt ASU 2016-13, ASU 2018-19, ASU 2019-04 and ASU 2019-05 collectively as of January 1, 2020 (the effective date) and do not anticipate there to be a material impact to our consolidated financial statements and related notes based on our ongoing evaluation. ASU 2018-13, Fair Value Measurement; Changes to the Disclosure Requirements for Fair Value Measurement

Investments in Real Estate

Investments in Real Estate	9 Months Ended
	Sep. 30, 2019
Investments [Abstract]
Investments in Real Estate	Investments in Real Estate For the nine months ended September 30, 2019 , our investments had an aggregate purchase price of $229.9 million . As part of these investments, we incurred approximately $1.5 million of capitalized costs. As part of one of our acquisitions in the third quarter of 2019, we issued to our sellers 72,294 OP Units with a market value at the time of issuance of $2.0 million . The allocations for these investments, in which we own a controlling financial interest, are set forth below in the aggregate for the nine months ended September 30, 2019 and 2018 , respectively (in thousands): Nine Months Ended September 30, 2019 2018 Land $ 33,408 $ 1,895 Building and improvements 174,708 14,458 In place leases 18,532 1,237 Below market leases (3,386 ) (201 ) Above market leases 2,046 — Net real estate assets acquired 225,308 17,389 Other, net 4,543 447 Aggregate purchase price $ 229,851 $ 17,836 The acquired intangible assets and liabilities referenced above had weighted average lives of the following terms for the nine months ended September 30, 2019 and 2018 , respectively (in years): Nine Months Ended September 30, 2019 2018 Acquired intangible assets 5.6 5.8 Acquired intangible liabilities 7.7 6.5

Impairment

Impairment	9 Months Ended
	Sep. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Impairment	Impairment During the nine months ended September 30, 2019 , we recorded no impairment charges. During the nine months ended September 30, 2018 , we recorded an impairment charge of $8.9 million on six MOBs located in Tennessee, Texas and South Carolina.

Intangible Assets and Liabiliti

Intangible Assets and Liabilities	9 Months Ended
	Sep. 30, 2019
Identified Intangibles, Net [Abstract]
Intangible Assets and Liabilities	Intangible Assets and Liabilities Intangible assets and liabilities consisted of the following as of September 30, 2019 and December 31, 2018 , respectively (in thousands, except weighted average remaining amortization terms): September 30, 2019 December 31, 2018 Balance Weighted Average Remaining Amortization in Years Balance Weighted Average Remaining Amortization in Years Assets: In place leases $ 459,307 9.4 $ 449,424 9.8 Tenant relationships 147,639 9.6 150,440 9.4 Above market leases 37,988 6.2 36,862 6.1 Below market leasehold interests (1) — 91,759 64.3 644,934 728,485 Accumulated amortization (384,996 ) (355,576 ) Total $ 259,938 9.2 $ 372,909 22.1 Liabilities: Below market leases $ 64,409 13.4 $ 61,395 14.6 Above market leasehold interests (1) — 20,610 49.2 64,409 82,005 Accumulated amortization (24,643 ) (20,859 ) Total $ 39,766 13.4 $ 61,146 25.3 (1) As a result of the adoption of Topic 842 on January 1, 2019, the presentation of below and above market leasehold interests as of September 30, 2019 does not conform to the prior year presentation. The following is a summary of the net intangible amortization for the three and nine months ended September 30, 2019 and 2018 , respectively (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Amortization recorded against rental income related to above and (below) market leases $ (1,658 ) $ (352 ) $ (2,678 ) $ (660 ) Rental expense related to above and (below) market leasehold interests (1) — 287 — 850 Amortization expense related to in place leases and tenant relationships 16,149 18,475 44,906 52,800 (1) As a result of the adoption of Topic 842 on January 1, 2019, the presentation of rental expense related to above and below market leasehold interests for the three and nine months ended September 30, 2019 does not conform to the prior year presentation.

Receivables and Other Assets

Receivables and Other Assets	9 Months Ended
	Sep. 30, 2019
Receivables and Other Assets [Abstract]
Receivables and Other Assets	Receivables and Other Assets Receivables and other assets consisted of the following as of September 30, 2019 and December 31, 2018 , respectively (in thousands): September 30, 2019 December 31, 2018 Tenant receivables, net $ 16,596 $ 14,588 Other receivables, net 17,218 16,078 Deferred financing costs, net 4,756 6,049 Deferred leasing costs, net 34,811 30,731 Straight-line rent receivables, net 104,794 92,973 Prepaid expenses, deposits, equipment and other, net 50,695 61,885 Derivative financial instruments - interest rate swaps 1,293 1,111 Total $ 230,163 $ 223,415 The following is a summary of the amortization of deferred leasing costs and financing costs for the three and nine months ended September 30, 2019 and 2018 , respectively (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Amortization expense related to deferred leasing costs $ 1,949 $ 1,357 $ 5,978 $ 4,166 Interest expense related to deferred financing costs 431 431 1,293 1,293

Leases

Leases	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Leases	Leases The majority of our lease expenses are derived from our ground leases and a few corporate leases, which are primarily for office space . We recognize lease expense for these leases on a straight-line basis over the lease term. Many of our leases contain renewal options that can extend the lease term from one to ten years, or in certain cases, longer durations. The exercise of lease renewal options is at our sole discretion. Certain of our ground leases have the option to purchase the land at the end of the initial term. Our leases have one of the following payment options: (i) fixed payment throughout the term; (ii) fixed payments with periodic escalations; (iii) variable lease payments based on the Consumer Price Index (“CPI”) or another similar index; and (iv) a combination of the aforementioned. Our leases do not contain any material residual value guarantees or material restrictive covenants other than certain prohibitions as to the nature of business that can be conducted within the buildings which we own in order to limit activities that may be deemed competitive in nature to the ground lessor’s activities. As part of the adoption of Topic 842, a lease liability and a corresponding ROU asset was recorded on our accompanying condensed consolidated balance sheets effective January 1, 2019. The lease liability was calculated as the present value of the remaining lease payments using the lease term at lease commencement and an incremental borrowing rate. In determining this calculation, we made the following assumptions and judgments: • only material ground leases and corporate leases exceeding one year in duration were included in our lease population. Office equipment and other non-essential leases were excluded from this population due to immateriality; and • a series of incremental borrowing rates were determined based on observed prices and credit spreads of our unsecured senior debt as of December 31, 2018 after applying treasury or other similar index rates as of January 1, 2019 to leases that correspond to the remaining lease terms, adjusted for the effects of collateral. At adoption, the ROU asset was calculated as the sum of the lease liability, deferred rent of approximately ($19.0) million , and the above and below market leasehold interest balances as of December 31, 2018 of approximately $66.5 million , which were previously recorded as other intangibles and intangible liabilities on our accompanying condensed consolidated balance sheets. As of September 30, 2019 , we have an executed ground lease that has not commenced in accordance with Topic 842. The date of commencement is anticipated to be in the fourth quarter of 2019 when substantive rights and economic control of the underlying asset transfers to us, at which time we will commence construction of a new MOB located in Bakersfield, CA. On that date, we will book a ROU asset and a corresponding lease liability of approximately $3.3 million . As of September 30, 2019 , we have no new corporate leases that have not yet commenced. Lessee - Lease Costs Lease costs consisted of the following for the three and nine months ended September 30, 2019 (in thousands): Three Months Ended Nine Months Ended September 30, 2019 September 30, 2019 Operating lease cost $ 3,221 $ 9,342 Variable lease cost 517 1,231 Total lease cost $ 3,738 $ 10,573 Lessee - Lease Term and Discount Rates The following is the weighted average remaining lease term and the weighted average discount rate for our operating leases as of September 30, 2019 (weighted average remaining lease term in years): September 30, 2019 Weighted-average remaining lease term 47.7 Weighted-average discount rate 5.3 % Lessee - Maturity of Lease Liabilities The following table summarizes the future minimum lease obligations of our operating leases as of September 30, 2019 under Topic 842 (in thousands): Year Amount 2019 $ 2,507 2020 10,160 2021 10,283 2022 10,440 2023 10,600 2024 10,263 Thereafter 624,145 Total undiscounted lease payments $ 678,398 Less: Interest (477,453 ) Present value of lease liabilities $ 200,945 As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting standard, Topic 840, the following table summarizes the future minimum lease obligations of our operating leases as of December 31, 2018 (in thousands): Year Amount 2019 $ 10,309 2020 10,408 2021 9,877 2022 10,031 2023 10,132 Thereafter 639,234 Total $ 689,991 Lessor - Lease Revenues and Maturity of Future Minimum Rents For the three and nine months ended September 30, 2019 , we recognized $173.1 million and $511.5 million , respectively, of rental and other lease-related income related to our operating leases of which $39.1 million and $115.2 million , respectively, were variable lease payments. The following table summarizes the future minimum rent contractually due under operating leases, excluding tenant reimbursements of certain costs, as of September 30, 2019 under Topic 842 (in thousands): Year Amount 2019 $ 122,688 2020 493,571 2021 444,676 2022 391,467 2023 340,671 2024 295,613 Thereafter 1,144,912 Total $ 3,233,598 As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting standard, Topic 840, the following table summarizes the future minimum rent contractually due under operating leases, excluding tenant reimbursements of certain costs, as of December 31, 2018 (in thousands): Year Amount 2019 $ 497,083 2020 448,956 2021 401,871 2022 341,889 2023 294,451 Thereafter 1,244,246 Total $ 3,228,496
Leases	Leases The majority of our lease expenses are derived from our ground leases and a few corporate leases, which are primarily for office space . We recognize lease expense for these leases on a straight-line basis over the lease term. Many of our leases contain renewal options that can extend the lease term from one to ten years, or in certain cases, longer durations. The exercise of lease renewal options is at our sole discretion. Certain of our ground leases have the option to purchase the land at the end of the initial term. Our leases have one of the following payment options: (i) fixed payment throughout the term; (ii) fixed payments with periodic escalations; (iii) variable lease payments based on the Consumer Price Index (“CPI”) or another similar index; and (iv) a combination of the aforementioned. Our leases do not contain any material residual value guarantees or material restrictive covenants other than certain prohibitions as to the nature of business that can be conducted within the buildings which we own in order to limit activities that may be deemed competitive in nature to the ground lessor’s activities. As part of the adoption of Topic 842, a lease liability and a corresponding ROU asset was recorded on our accompanying condensed consolidated balance sheets effective January 1, 2019. The lease liability was calculated as the present value of the remaining lease payments using the lease term at lease commencement and an incremental borrowing rate. In determining this calculation, we made the following assumptions and judgments: • only material ground leases and corporate leases exceeding one year in duration were included in our lease population. Office equipment and other non-essential leases were excluded from this population due to immateriality; and • a series of incremental borrowing rates were determined based on observed prices and credit spreads of our unsecured senior debt as of December 31, 2018 after applying treasury or other similar index rates as of January 1, 2019 to leases that correspond to the remaining lease terms, adjusted for the effects of collateral. At adoption, the ROU asset was calculated as the sum of the lease liability, deferred rent of approximately ($19.0) million , and the above and below market leasehold interest balances as of December 31, 2018 of approximately $66.5 million , which were previously recorded as other intangibles and intangible liabilities on our accompanying condensed consolidated balance sheets. As of September 30, 2019 , we have an executed ground lease that has not commenced in accordance with Topic 842. The date of commencement is anticipated to be in the fourth quarter of 2019 when substantive rights and economic control of the underlying asset transfers to us, at which time we will commence construction of a new MOB located in Bakersfield, CA. On that date, we will book a ROU asset and a corresponding lease liability of approximately $3.3 million . As of September 30, 2019 , we have no new corporate leases that have not yet commenced. Lessee - Lease Costs Lease costs consisted of the following for the three and nine months ended September 30, 2019 (in thousands): Three Months Ended Nine Months Ended September 30, 2019 September 30, 2019 Operating lease cost $ 3,221 $ 9,342 Variable lease cost 517 1,231 Total lease cost $ 3,738 $ 10,573 Lessee - Lease Term and Discount Rates The following is the weighted average remaining lease term and the weighted average discount rate for our operating leases as of September 30, 2019 (weighted average remaining lease term in years): September 30, 2019 Weighted-average remaining lease term 47.7 Weighted-average discount rate 5.3 % Lessee - Maturity of Lease Liabilities The following table summarizes the future minimum lease obligations of our operating leases as of September 30, 2019 under Topic 842 (in thousands): Year Amount 2019 $ 2,507 2020 10,160 2021 10,283 2022 10,440 2023 10,600 2024 10,263 Thereafter 624,145 Total undiscounted lease payments $ 678,398 Less: Interest (477,453 ) Present value of lease liabilities $ 200,945 As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting standard, Topic 840, the following table summarizes the future minimum lease obligations of our operating leases as of December 31, 2018 (in thousands): Year Amount 2019 $ 10,309 2020 10,408 2021 9,877 2022 10,031 2023 10,132 Thereafter 639,234 Total $ 689,991 Lessor - Lease Revenues and Maturity of Future Minimum Rents For the three and nine months ended September 30, 2019 , we recognized $173.1 million and $511.5 million , respectively, of rental and other lease-related income related to our operating leases of which $39.1 million and $115.2 million , respectively, were variable lease payments. The following table summarizes the future minimum rent contractually due under operating leases, excluding tenant reimbursements of certain costs, as of September 30, 2019 under Topic 842 (in thousands): Year Amount 2019 $ 122,688 2020 493,571 2021 444,676 2022 391,467 2023 340,671 2024 295,613 Thereafter 1,144,912 Total $ 3,233,598 As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting standard, Topic 840, the following table summarizes the future minimum rent contractually due under operating leases, excluding tenant reimbursements of certain costs, as of December 31, 2018 (in thousands): Year Amount 2019 $ 497,083 2020 448,956 2021 401,871 2022 341,889 2023 294,451 Thereafter 1,244,246 Total $ 3,228,496

Debt

Debt	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Debt	Debt Debt consisted of the following as of September 30, 2019 and December 31, 2018 , respectively (in thousands): September 30, 2019 December 31, 2018 Unsecured revolving credit facility $ 15,000 $ — Unsecured term loans 500,000 500,000 Unsecured senior notes 2,050,000 1,850,000 Fixed rate mortgages 114,657 211,421 2,679,657 2,561,421 Deferred financing costs, net (16,088 ) (13,741 ) Discount, net 2,122 (6,448 ) Total $ 2,665,691 $ 2,541,232 Unsecured Credit Agreement Unsecured Revolving Credit Facility due 2022 In 2017, HTALP entered into an amended and restated $1.3 billion unsecured credit agreement (the “Unsecured Credit Agreement”) which increased the amount available under the unsecured revolving credit facility to $1.0 billion and extended the maturities of the unsecured revolving credit facility to June 30, 2022 and for the $300.0 million unsecured term loan referenced below to February 1, 2023 . The maximum principal amount of the Unsecured Credit Agreement may be increased by up to $750.0 million , subject to certain conditions, for a total principal amount of $2.05 billion . Borrowings under the unsecured revolving credit facility accrue interest at a rate equal to adjusted LIBOR , plus a margin ranging from 0.83% to 1.55% per annum based on our credit rating. We also pay a facility fee ranging from 0.13% to 0.30% per annum on the aggregate commitments under the unsecured revolving credit facility. As of September 30, 2019 , HTALP had $15.0 million under this unsecured revolving credit facility outstanding and an interest rate of 3.24% per annum. The margin associated with our borrowings was 1.00% per annum and the facility fee was 0.20% per annum. Unsecured Term Loan due 2023 In 2017, we entered into the Unsecured Credit Agreement as noted above. As part of this agreement, we obtained a $300.0 million unsecured term loan that was guaranteed by HTA with a maturity date of February 1, 2023 . Borrowings under this unsecured term loan accrue interest equal to adjusted LIBOR , plus a margin ranging from 0.90% to 1.75% per annum based on our credit rating. The margin associated with our borrowings as of September 30, 2019 was 1.10% per annum. Including the impact of the interest rate swaps associated with our unsecured term loan, the interest rate was 2.52% per annum, based on our current credit rating. As of September 30, 2019 , HTALP had $300.0 million under this unsecured term loan outstanding. $200.0 Million Unsecured Term Loan due 2024 In 2018, HTALP entered into a modification of our $200.0 million unsecured term loan with a maturity date of January 15, 2024. Borrowings under the unsecured term loan accrue interest at a rate equal to LIBOR, plus a margin ranging from 0.75% to 1.65% per annum based on our credit rating. The margin associated with our borrowings as of September 30, 2019 was 1.00% per annum. HTALP had interest rate swaps on a portion of the balance, which resulted in a fixed interest rate at 2.32% per annum, based on our current credit rating. As of September 30, 2019 , HTALP had $200.0 million under this unsecured term loan outstanding. $300.0 Million Unsecured Senior Notes due 2021 In September 2019, in connection with HTALP ’s issuance of $900.0 million of unsecured senior notes, all of the $300.0 million outstanding 2021 unsecured senior notes originally due to mature on July 15, 2021, including any accrued and unpaid interest and a make-whole provision, were redeemed in full, with net proceeds from the offering. The make-whole fee of $7.4 million is recorded in loss on extinguishment of debt in the accompanying condensed consolidated statements of operations. $400.0 Million Unsecured Senior Notes due 2022 In September 2019, in connection with HTALP ’s issuance of $900.0 million of unsecured senior notes, all of the $400.0 million outstanding 2022 unsecured senior notes originally due to mature on July 1, 2022, including any accrued and unpaid interest and a make-whole provision, were redeemed in full, with net proceeds from the offering. The make-whole fee of $10.9 million is recorded in loss on extinguishment of debt in the accompanying condensed consolidated statements of operations. $300.0 Million Unsecured Senior Notes due 2023 As of September 30, 2019 , HTALP had $300.0 million of unsecured senior notes outstanding that are guaranteed by HTA. These unsecured senior notes are registered under the Securities Act of 1933, as amended (the “Securities Act”), bear interest at 3.70% per annum and are payable semi-annually. Additionally, these unsecured senior notes were offered at 99.19% of the principal amount thereof, with an effective yield to maturity of 3.80% per annum. As of September 30, 2019 , HTALP had $300.0 million of these unsecured senior notes outstanding that mature on April 15, 2023. $600.0 Million Unsecured Senior Notes due 2026 In September 2019, in connection with the $650.0 million unsecured senior notes due 2030 referenced below, HTALP issued $250.0 million as additional unsecured senior notes to the $350.0 million aggregate principal of senior notes issued on July 12, 2016, all of which are guaranteed by HTA. These unsecured senior notes are registered under the Securities Act, bear interest at 3.50% per annum and are payable semi-annually. Additionally, these unsecured senior notes were offered at 103.66% and 99.72% , respectively, of the principal amount thereof, with an effective yield to maturity of 2.89% and 3.53% , respectively, per annum. As of September 30, 2019 , HTALP had $600.0 million of these unsecured senior notes outstanding that mature on August 1, 2026. $500.0 Million Unsecured Senior Notes due 2027 In 2017, in connection with the $400.0 million unsecured senior notes due 2022 referenced above, HTALP issued $500.0 million of unsecured senior notes that are guaranteed by HTA. These unsecured senior notes are registered under the Securities Act, bear interest at 3.75% per annum and are payable semi-annually. Additionally, these unsecured senior notes were offered at 99.49% of the principal amount thereof, with an effective yield to maturity of 3.81% per annum. As of September 30, 2019 , HTALP had $500.0 million of these unsecured senior notes outstanding that mature on July 1, 2027. $650.0 Million Unsecured Senior Notes due 2030 In September 2019, in connection with the $250.0 million additional unsecured senior notes due 2026 referenced above, HTALP issued $650.0 million of unsecured senior notes that are guaranteed by HTA. These unsecured senior notes are registered under the Securities Act, bear interest at 3.10% per annum and are payable semi-annually. Additionally, these unsecured senior notes were offered at 99.66% of the principal amount thereof, with an effective yield to maturity of 3.14% per annum. As of September 30, 2019 , HTALP had $650.0 million of these unsecured senior notes outstanding that mature on February 15, 2030. Fixed Rate Mortgages As of September 30, 2019 , HTALP and its subsidiaries had fixed rate mortgages with interest rates ranging from 2.85% to 4.00% per annum and a weighted average interest rate of 3.93% per annum. During the nine months ended September 30, 2019 , we repaid $96.8 million of our fixed rate mortgages. As of September 30, 2019 , we had $114.7 million of fixed rate mortgages outstanding. Future Debt Maturities The following table summarizes the debt maturities and scheduled principal repayments of our indebtedness as of September 30, 2019 (in thousands): Year Amount 2019 $ 598 2020 97,429 2021 2,504 2022 17,005 2023 612,121 Thereafter 1,950,000 Total $ 2,679,657 Deferred Financing Costs As of September 30, 2019 , the future amortization of our deferred financing costs is as follows (in thousands): Year Amount 2019 $ 858 2020 2,555 2021 2,560 2022 2,561 2023 1,842 Thereafter 5,712 Total $ 16,088 Debt Covenants We are required by the terms of our applicable loan 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 loan 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 September 30, 2019

Derivative Financial Instrument

Derivative Financial Instruments and Hedging Activities	9 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments and Hedging Activities	Derivative Financial Instruments and Hedging Activities Risk Management Objective of Using Derivative Financial Instruments We may use derivative financial instruments, including interest rate swaps, caps, options, floors and other interest rate derivative contracts, to hedge all or a portion of the interest rate risk associated with our borrowings. The principal objective of such arrangements is to minimize the risks and/or costs associated with our operating and financial structure as well as to hedge specific anticipated transactions. We do not intend to utilize derivatives for speculative or other purposes other than interest rate risk management. The use of derivative financial instruments carries certain risks, including the risk that the counterparties to these contractual arrangements are not able to perform under the agreements. To mitigate this risk, we only enter into derivative financial instruments with counterparties with high credit ratings and with major financial institutions with which we and our affiliates may also have other financial relationships. We do not anticipate that any of the counterparties will fail to meet their obligations. 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, the fair value of derivative financial instruments designated as cash flow hedges are adjusted to reflect the impact of our credit quality. Cash Flow Hedges of Interest Rate Risk 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 primarily use interest rate swaps and treasury locks as part of our interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable rate amounts from a counterparty in exchange for us making fixed rate payments over the life of the agreements without exchange of the underlying notional amount. A treasury lock is a synthetic forward sale of a U.S. treasury note, which is settled in cash based upon the difference between an agreed upon treasury rate and the prevailing treasury rate at settlement. Such treasury locks are entered into to effectively fix the treasury component of an upcoming debt issuance. Amounts reported in accumulated other comprehensive income in the accompanying condensed consolidated balance sheets related to derivatives will be reclassified to interest expense as interest payments are made on our variable rate debt. During the next twelve months, we estimate that an additional $1.2 million will be reclassified from other comprehensive income in the accompanying condensed consolidated balance sheets as an increase to interest related to derivative financial instruments in the accompanying condensed consolidated statements of operations. As of September 30, 2019 , we had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk (in thousands, except number of instruments): Interest Rate Swaps September 30, 2019 Number of instruments 7 Notional amount $ 500,000 The table below presents the fair value of our derivative financial instruments designated as cash flow hedges as well as the classification in the accompanying condensed consolidated balance sheets as of September 30, 2019 and December 31, 2018 , respectively (in thousands): Asset Derivatives Liability Derivatives Fair Value at: Fair Value at: Derivatives Designated as Hedging Instruments: Balance Sheet Location September 30, 2019 December 31, 2018 Balance Sheet Location September 30, 2019 December 31, 2018 Interest rate swaps Receivables and other assets $ 1,293 $ 1,111 Derivative financial instruments $ 1,152 $ — The table below presents the gain or loss recognized on our derivative financial instruments designated as cash flow hedges as well as the classification in the accompanying condensed consolidated statements of operations for the three and nine months ended September 30, 2019 and 2018 , respectively (in thousands): Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from Accumulated OCI into Income Three Months Ended September 30, Three Months Ended September 30, Derivatives Cash Flow Hedging Relationships: 2019 2018 Statement of Operations Location 2019 2018 Interest rate swaps $ 2,559 $ 96 Interest expense $ 269 $ 223 Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from Accumulated OCI into Income Nine Months Ended September 30, Nine Months Ended September 30, Derivatives Cash Flow Hedging Relationships: 2019 2018 Statement of Operations Location 2019 2018 Interest rate swaps $ 2,508 $ 1,437 Interest expense $ 989 $ 450 Tabular Disclosure of Offsetting Derivatives The table below sets forth the net effects of offsetting and net presentation of our derivatives as of September 30, 2019 and December 31, 2018 , respectively (in thousands). The net amounts of derivative assets can be reconciled to the tabular disclosure of fair value. The tabular disclosure of fair value provides the location that derivative assets are presented in the accompanying condensed consolidated balance sheets. Offsetting of Derivative Assets Gross Amounts of Recognized Assets Gross Amounts Offset in the Balance Sheets Net Amounts of Assets Presented in the Balance Sheets Financial Instruments Cash Collateral Received Net Amount September 30, 2019 $ 571 $ 722 $ 1,293 $ — $ — $ 1,293 December 31, 2018 1,111 — 1,111 — — 1,111 Offsetting of Derivative Liabilities Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Balance Sheets Net Amounts of Liabilities Presented in the Balance Sheets Financial Instruments Cash Collateral Received Net Amount September 30, 2019 $ 430 $ 722 $ 1,152 $ — $ — $ 1,152 December 31, 2018 — — — — — — Credit Risk Related Contingent Features We have agreements with each of our derivative counterparties that contain a provision that if we default on any of our indebtedness, including a default where repayment of the indebtedness has not been accelerated by the lender, then we could also be declared in default on our derivative obligations. We also have agreements with each of our derivative counterparties that incorporate provisions from our indebtedness with a lender affiliate of the derivative counterparty requiring it to maintain certain minimum financial covenant ratios on our indebtedness. Failure to comply with the covenant provisions would result in us being in default on any derivative instrument obligations covered by these agreements. As of September 30, 2019 , the fair value of derivatives in a net liability position, including accrued interest, but excluding any adjustment for nonperformance risk related to these agreements, was $0.4 million . As of September 30, 2019 , we have not posted any collateral related to these agreements and we were not in breach of any of the provisions of these agreements. If we had breached any of the provisions of these agreements, we could have been required to settle our obligations under these agreements at an aggregate termination value of $0.4 million at September 30, 2019

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Sep. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation We engage in litigation from time to time with various parties as a routine part of our business, including tenant defaults. However, 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 adverse 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 adverse effect on our condensed consolidated financial position, results of operations or cash flows.

Redeemable Noncontrolling Inter

Redeemable Noncontrolling Interests	9 Months Ended
	Sep. 30, 2019
Temporary Equity Disclosure [Abstract]
Redeemable Noncontrolling Interests	Redeemable Noncontrolling Interests As discussed in Note 2 - Summary of Significant Accounting Policies , redeemable noncontrolling interests on the accompanying condensed consolidated balance sheets represent the noncontrolling interest in a joint venture in which we own the majority interest. The noncontrolling interest holders in the joint venture have the option to redeem their noncontrolling interest through the exercise of put options that were issued at the initial formation of the joint venture. The last exercisable put option lapsed on June 30, 2019. The redemption price was based on the fair value of their interest at the time of option exercise. As of September 30, 2019 , all redeemable noncontrolling interests have either converted their interest to OP Units or received cash proceeds. The following is a summary of the activity of our redeemable noncontrolling interests as of September 30, 2019 and December 31, 2018 , respectively (in thousands): September 30, 2019 December 31, 2018 Beginning balance $ 6,544 $ 6,737 Net income attributable to noncontrolling interests 66 89 Distributions (141 ) (282 ) Fair value adjustment (425 ) — Redemptions (3,441 ) — Issuance of OP Units (2,603 ) — Ending balance $ — $ 6,544

Stockholders' Equity and Partne

Stockholders' Equity and Partners' Capital	9 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Stockholders' Equity and Partners' Capital	Stockholders’ Equity and Partners’ Capital HTALP ’s operating partnership agreement provides that it will distribute cash flow 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. Dividend distributions are made such that a holder of one OP Unit in HTALP will receive distributions from HTALP in an amount equal to the dividend distributions paid to the holder of one share of our common stock. In addition, for each share of common stock issued or redeemed by HTA, HTALP issues or redeems a corresponding number of OP Units. Common Stock Offerings In December 2018, we entered into new equity distribution agreements with various sales agents with respect to our at-the-market (“ATM”) offering program of common stock with an aggregate sales amount of up to $500.0 million . In September 2019, we settled a forward sale arrangement pursuant to a forward equity agreement that was entered into in June 2019, which included the sale of approximately 1.8 million shares of our common stock for net proceeds of approximately $51.8 million , adjusted for costs to borrow equating to a net price to us of $28.13 per share of common stock. As of September 30, 2019 , $448.2 million remained available for issuance by us under the ATM. In October 2019, we entered into a forward sale arrangement pursuant to a forward equity agreement, with anticipated net proceeds of $172.7 million with a maturity date of October 2020, subject to adjustments as provided in the forward equity agreement. Refer to Note 14 - Per Share Data of HTA to these condensed consolidated financial statements for a more detailed discussion related to our forward equity agreements. Stock Repurchase Plan During the nine months ended September 30, 2019 , we repurchased 345,786 shares of our common stock, at an average price of $24.65 per share, for an aggregate amount of approximately $8.5 million , pursuant to our stock repurchase plan. As of September 30, 2019 , the remaining amount of common stock available for repurchase under our stock repurchase plan was approximately $224.3 million . Common Stock Dividends See our accompanying condensed consolidated statements of equity and condensed statements of changes in partners’ capital for the dividends declared during the three and nine months ended September 30, 2019 and 2018 . On October 28, 2019 , our Board of Directors announced a quarterly cash dividend of $0.315 per share of common stock and per OP Unit to be paid on January 9, 2020 to stockholders of record of our common stock and holders of our OP Units on January 2, 2020 . Incentive Plan Our Incentive Plan permits the grant of incentive awards to our employees, officers, non-employee directors and consultants as selected by our Board of Directors. This Plan authorizes us to grant 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 shares. As of September 30, 2019 , there were 1,065,132 awards available for grant under the Plan. Restricted Common Stock For the three and nine months ended September 30, 2019 , we recognized compensation expense of $2.3 million and $7.8 million , respectively. For the three and nine months ended September 30, 2018 , we recognized compensation expense of $2.1 million and $7.8 million , respectively. Substantially all compensation expense was recorded in general and administrative expenses in the accompanying condensed consolidated statements of operations. As of September 30, 2019 , we had $7.3 million of unrecognized compensation expense, net of estimated forfeitures, which we will recognize over a remaining weighted average period of 1.4 years. The following is a summary of our restricted common stock activity as of September 30, 2019 and 2018 , respectively: September 30, 2019 September 30, 2018 Restricted Common Stock Weighted Average Grant Date Fair Value Restricted Common Stock Weighted Average Grant Date Fair Value Beginning balance 624,349 $ 29.35 589,606 $ 29.38 Granted 333,820 26.06 360,700 28.70 Vested (338,540 ) 28.53 (255,946 ) 28.68 Forfeited (13,951 ) 28.22 (38,882 ) 28.97 Ending balance 605,678 $ 28.05 655,478 $ 29.30

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments Financial Instruments Reported at Fair Value - Recurring The table below presents the carrying amounts and fair values of our financial instruments on a recurring basis as of September 30, 2019 and December 31, 2018 (in thousands): September 30, 2019 December 31, 2018 Carrying Amount Fair Value Carrying Amount Fair Value Level 2 - Assets: Derivative financial instruments $ 1,293 $ 1,293 $ 1,111 $ 1,111 Level 2 - Liabilities: Derivative financial instruments $ 1,152 $ 1,152 $ — $ — Debt 2,665,691 2,734,978 2,541,232 2,508,599 The carrying amounts of cash and cash equivalents, tenant and other receivables, restricted cash, accounts payable, and accrued liabilities approximate fair value. 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 cash flow hedges 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 cash flow hedge positions and have determined that the credit valuation adjustments are not significant to their overall valuation. As a result, we have determined that our cash flow hedge valuations in their entirety are classified in Level 2 of the fair value hierarchy. For further discussion of the assumptions considered, refer to Note 2 - Summary of Significant Accounting Policies . Financial Instruments Reported at Fair Value - Non-Recurring

Per Share Data of HTA

Per Share Data of HTA	9 Months Ended
	Sep. 30, 2019
HTA, Inc.
Earnings Per Share
Per Share Data of HTA	Per Share Data of HTA In September 2019, we settled a forward sale arrangement pursuant to a forward equity agreement that was entered into in June 2019, to sell approximately 1.8 million shares of common stock through our ATM at a price of $28.13 per share, for net proceeds of $51.8 million . To account for the forward equity agreement, we considered the accounting guidance governing financial instruments and derivatives and concluded that our forward equity agreement was not a liability as it did not embody obligations to repurchase our shares of common stock nor did it embody obligations to issue a variable number of shares for which the monetary value was predominately fixed, varying with something other than the fair value of the shares, or varying inversely in relation to our shares. We also evaluated whether the agreement met the derivatives and hedging guidance scope exception to be accounted for as an equity instrument and concluded that the agreement can be classified as an equity contract based on the following assessment: (i) none of the agreements’ exercise contingencies were based on observable markets or indices besides those related to the market for our own stock price and operations; and (ii) none of the settlement provisions precluded the agreement from being indexed to our own common stock. In addition, we considered the potential dilution resulting from the forward equity agreement mentioned above on our earnings per common share calculations. We use the treasury method to determine the dilution resulting from the forward equity agreement during the period of time prior to settlement. The impact to our weighted-average shares - diluted was anti-dilutive in nature and thus approximately 24,000 and 9,000 , respectively, were excluded from the calculation for the three and nine months ended September 30, 2019 . In October 2019, we entered into a forward sale arrangement pursuant to a forward equity agreement to sell approximately 6.0 million shares of common stock through our ATM at a price of $28.64 per share, for anticipated net proceeds of approximately $172.7 million with a maturity date of October 2020, subject to adjustments as provided in the forward equity agreement. We anticipate using these net proceeds to fund purchases of additional MOBs and for general corporate purposes. We include 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. Our forward equity agreement is not considered a participating security and, therefore, is not included in the computation of earnings per share using the two-class method. For the three and nine months ended September 30, 2019 and 2018 , all of our 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 for the three and nine months ended September 30, 2019 and 2018 , respectively (in thousands, except per share data): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Numerator: Net (loss) income $ (8,577 ) $ 176,348 $ 21,722 $ 202,021 Net income attributable to noncontrolling interests 114 (3,362 ) (486 ) (3,887 ) Net income attributable to common stockholders $ (8,463 ) $ 172,986 $ 21,236 $ 198,134 Denominator: Weighted average shares outstanding - basic 205,277 207,513 205,156 205,950 Dilutive shares - OP Units convertible into common stock — 3,931 3,870 4,018 Adjusted weighted average shares outstanding - diluted 205,277 211,444 209,026 209,968 Earnings per common share - basic Net (loss) income attributable to common stockholders $ (0.04 ) $ 0.83 $ 0.10 $ 0.96 Earnings per common share - diluted Net (loss) income attributable to common stockholders $ (0.04 ) $ 0.82 $ 0.10 $ 0.94

Per Unit Data of HTALP

Per Unit Data of HTALP	9 Months Ended
	Sep. 30, 2019
Healthcare Trust of America Holdings, LP (HTALP)
Earnings Per Share
Per Unit Data of HTALP	Per Unit Data of HTALP In September 2019, we settled a forward sale arrangement pursuant to a forward equity agreement, that was entered into in June 2019, to sell 1.8 million shares of common stock through our ATM. In October 2019, we entered into a forward sale arrangement pursuant to a forward equity agreement to sell 6.0 million shares of common stock through our ATM. Refer to Note 14 - Per Share Data of HTA to these condensed consolidated financial statements for a more detailed discussion related to our forward equity agreements executed in June 2019 and October 2019. The following is the reconciliation of the numerator and denominator used in basic and diluted earnings per unit of HTALP for the three and nine months ended September 30, 2019 , and 2018 , respectively (in thousands, except per unit data): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Numerator: Net (loss) income $ (8,577 ) $ 176,348 $ 21,722 $ 202,021 Net income attributable to noncontrolling interests — (18 ) (66 ) (65 ) Net (loss) income attributable to common unitholders $ (8,577 ) $ 176,330 $ 21,656 $ 201,956 Denominator: Weighted average OP Units outstanding - basic 209,164 211,444 209,056 209,968 Dilutive units - OP Units convertible into common units — — — — Adjusted weighted average units outstanding - diluted 209,164 211,444 209,056 209,968 Earnings per common unit - basic: Net (loss) income attributable to common unitholders $ (0.04 ) $ 0.83 $ 0.10 $ 0.96 Earnings per common unit - diluted: Net (loss) income attributable to common unitholders $ (0.04 ) $ 0.83 $ 0.10 $ 0.96

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	9 Months Ended
	Sep. 30, 2019
Supplemental Cash Flow Elements [Abstract]
Supplemental Cash Flow Information	Supplemental Cash Flow Information The following is the supplemental cash flow information for the nine months ended September 30, 2019 and 2018 , respectively (in thousands): Nine Months Ended September 30, 2019 2018 Supplemental Disclosure of Cash Flow Information: Interest paid $ 84,155 $ 87,303 Income taxes paid 1,846 1,656 Cash paid for operating leases 9,277 — Supplemental Disclosure of Noncash Investing and Financing Activities: Accrued capital expenditures $ 3,922 $ 243 Dividend distributions declared, but not paid 66,397 65,544 Issuance of OP Units in HTALP 2,603 — Issuance of OP Units in HTALP in connection with an acquisition 2,000 — Redemption of noncontrolling interest 7,263 5,195 Redemption of redeemable noncontrolling interest 3,441 — ROU assets obtained in exchange for lease obligations 200,879 —

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
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.
Reclassifications	Certain prior year amounts related to the presentation of interest expense on the accompanying condensed consolidated statements of operations have been reclassified to conform to the current year presentation.
Principles of Consolidation	The condensed consolidated financial statements include the accounts of our subsidiaries and consolidated joint venture arrangements. The portions of the HTALP operating partnership not owned by us are presented as noncontrolling interests on the accompanying condensed consolidated balance sheets and statements of operations, condensed consolidated statements of comprehensive income, and condensed consolidated statements of equity and changes in partners’ capital. Holders of OP Units are considered to be noncontrolling interest holders in HTALP and their ownership interests are reflected as equity on the accompanying condensed consolidated balance sheets. Further, a portion of the earnings and losses of HTALP are allocated to noncontrolling interest holders based on their respective ownership percentages. Upon conversion of OP Units to common stock, any difference between the fair value of the common stock issued and the carrying value of the OP Units converted to common stock is recorded as a component of equity. As of September 30, 2019 and December 31, 2018 , there were approximately 3.8 million and 3.9 million , respectively, of OP Units issued and outstanding. VIEs are entities where investors lack sufficient equity at risk for the entity to finance its activities without additional subordinated financial support or where equity investors, as a group, lack one of the following: (i) the power to direct the activities that most significantly impact the entity’s economic performance; (ii) the obligation to absorb the expected losses of the entity; and (iii) the right to receive the expected returns of the entity. We consolidate our investment in VIEs when we determine that we are the primary beneficiary. A primary beneficiary is one that has both: (i) the power to direct the activities of the VIE that most significantly impacts the entity’s economic performance; and (ii) the obligation to absorb losses or the right to receive benefits of the VIE that could be significant to the entity. The HTALP operating partnership and our other joint venture arrangements are VIEs because the limited partners in those partnerships, although entitled to vote on certain matters, do not possess kick-out rights or substantive participating rights. Additionally, we determined that we are the primary beneficiary of our VIEs. Accordingly, we consolidate our interests in the HTALP operating partnership and in our other joint venture arrangements. However, because we hold what is deemed a majority voting interest in the HTALP operating partnership and our other joint venture arrangements, it qualifies for the exemption from providing certain disclosure requirements associated with investments in VIEs. We will evaluate on an ongoing basis the need to consolidate entities based on the standards set forth in GAAP as described above.
Cash, Cash Equivalents and Restricted Cash	Cash and cash equivalents consist of all highly liquid investments with a maturity of three months or less when purchased. Restricted cash is comprised of: (i) reserve accounts for property taxes, insurance, capital and tenant improvements; (ii) collateral accounts for debt and interest rate swaps; and (iii) deposits for future investments.
Revenue Recognition	Minimum annual rental revenue is recognized on a straight-line basis over the term of the related lease (including rent holidays). Differences between rental income recognized and amounts contractually due under the lease agreements are recorded as straight-line rent receivables. Tenant reimbursements, which is comprised of additional amounts recoverable from tenants for real estate taxes, common area maintenance and other certain operating expenses are recognized as revenue on a gross basis in the period in which the related recoverable expenses are incurred. We accrue revenue corresponding to these expenses on a quarterly basis to adjust recorded amounts to our best estimate of the final annual amounts to be billed. Subsequent to year-end, on a calendar year basis, we perform reconciliations on a lease-by-lease basis and bill or credit each tenant for any differences between the estimated expenses we billed and the actual expenses that were incurred. We recognize lease termination fees when there is a signed termination letter agreement, all of the conditions of the agreement have been met, and the tenant is no longer occupying the property. Rental income is reported net of amortization of inducements. The revenue recognition process is based on a five-step model to account for revenue arising from contracts with customers as outlined in Topic 606. We recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. We have identified all of our revenue streams and we have concluded that rental income from leasing arrangements represents a substantial portion of our revenue and is governed and evaluated with the adoption of Topic 842.
Leases, Lessor	As a lessor, we lease space in our MOBs primarily to medical enterprises for terms ranging from three to seven years in length. The assets underlying these leases consist of buildings and associated land which are included as real estate investments on our accompanying condensed consolidated balance sheets. All of our leases for which we are the lessor are classified as operating leases under Topic 842.
Leases, Lessee	Leases, for which we are the lessee, are classified as separate components on our accompanying condensed consolidated balance sheets. Operating leases are included as right-of-use (“ROU”) assets, net, with a corresponding lease liability. A lease liability is recognized for our obligation related to the lease and an ROU asset represents our right to use the underlying asset over the lease term.
Redeemable Noncontrolling Interests	We account for redeemable equity securities in accordance with ASU 2009-04 Liabilities (Topic 480): Accounting for Redeemable Equity Instruments, which requires that equity securities redeemable at the option of the holder, not solely within our control, be classified outside permanent stockholders’ equity. We classify redeemable equity securities as redeemable noncontrolling interests on the accompanying condensed consolidated balances sheets. Accordingly, we record the carrying amount at the greater of the initial carrying amount (increased or decreased for the noncontrolling interest’s share of net income or loss and distributions) or the redemption value. We measure the redemption value and record an adjustment to the carrying value of the equity securities as a component of redeemable noncontrolling interest.
Unconsolidated Joint Ventures	We account for our investments in unconsolidated joint ventures using the equity method of accounting because we have the ability to exercise significant influence, but not control, over the financial and operational policy decisions of the investments. Using the equity method of accounting, the initial investment is recognized at cost and subsequently adjusted for our share of the net income and any distributions from the joint venture.
Recently Issued or Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements Topic 842, Leases In February 2016, the Financial Accounting Standards Board (the “FASB”) issued Accounting Standards Update (“ASU”) 2016-02, codified as ASC 842 - Leases (Topic 842). This new standard superseded ASC Topic 840 and states that companies will be required to recognize lease assets and lease liabilities on the balance sheet and disclose key information about leasing arrangements. Topic 842 requires qualitative and quantitative disclosures to supplement the amounts recorded in the financial statements so that users can understand the nature of the entity’s leasing activities, including significant judgments and changes in judgments. We adopted Topic 842 as of January 1, 2019 and elected to use the optional transition method, which allows us to recognize a cumulative-effect adjustment to the opening balance of retained earnings at January 1, 2019. Using the optional transition method, the cumulative effect adjustment was immaterial and as such no adjustment was made to beginning retained earnings. In addition, it was determined in our analysis that finance leases which we are the lessee were immaterial and as such were excluded from our disclosures. In addition to electing the optional transition method above, we also elected the following practical expedients offered by the FASB which will allow us: • to not reassess: (i) whether an expired or existing contract contains a lease arrangement; (ii) lease classification related to expired or existing lease arrangements; or (iii) whether costs incurred on expired or existing leases qualify as initial direct costs; • to not separate, as the lessor, certain non-lease components, such as common area maintenance from lease revenue if the (i) timing and pattern of revenue recognition are the same for the non-lease component, and (ii) related lease component and the combined single lease component would be classified as an operating lease; • to exclude land easements from assessment in determining whether they meet the definition of a lease up to the time of adoption; and • to not record on our accompanying condensed consolidated balance sheets, lease liabilities and ROU assets with lease terms of 12 months or less. Lessee Impact Leases for which we are the lessee, including ground leases and corporate leases, which are primarily for office space, have been recorded on our accompanying condensed consolidated balance sheets as either finance or operating leases with lease liability obligations and corresponding ROU assets based on the present value of the minimum rental payments remaining as of the initial adoption date of January 1, 2019. Lessor Impact Topic 842 modifies the treatment of initial direct costs, which historically under Topic 840 have been capitalized upon meeting criteria provided for in that applicable guidance. These initial direct costs now under ASC 842 are eligible for capitalization only if they are incremental in nature, (i.e., would only be incurred if we enter into a new lease arrangement). Under this guidance, only commissions paid and other incurred costs incremental to our leasing activity qualify as initial direct costs. These costs, which were previously capitalized, have been classified as general and administrative expenses on our accompanying condensed consolidated statements of operations. For the three and nine months ended September 30, 2018 , we capitalized approximately $1.5 million and $3.7 million , respectively, of initial direct costs. Additionally, as part of Topic 842, ASU 2018-20 states that (i) a lessor must analyze sales (and other similar) tax laws on a jurisdiction-by-jurisdiction basis to determine whether those taxes are lessor costs or lessee costs and (ii) a lessor shall exclude from variable payments, lessor costs (i.e., property taxes, insurance) paid by a lessee directly to a third party. However, costs that are paid by a lessor directly to a third party and are reimbursed by a lessee are considered lessor costs that shall be accounted for by the lessor as variable payments. As a result of the adoption of Topic 842, we no longer record income or expense when the lessee pays the property taxes directly to a third party. For the three and nine months ended September 30, 2018 , we recognized approximately $3.5 million and $10.5 million , respectively, of tenant paid property taxes. Except where stated above, the adoption of Topic 842 did not have a substantive impact on our results of operations and cash flows and no significant impact on any of our debt covenants. ASU 2018-07, Compensation - Stock Compensation; Improvements to Nonemployee Share-Based Payment Accounting In June 2018, the FASB issued ASU 2018-07, which expands the scope of Topic 718. The amendments specify that ASU 2018-07 applies to all share-based payment transactions in which a grantor acquires goods or services to be used or consumed in a grantor’s own operations by issuing share-based payment awards. ASU 2018-07 also clarifies that it does not apply to share-based payments used to effectively provide (i) financing to the issuer or (ii) awards granted in conjunction with selling goods or services to customers as part of a contract accounted for under Topic 606. We adopted ASU 2018-07 on January 1, 2019 (the effective date) and did not have any reclassifications or material impacts on our consolidated financial statements as a result of this adoption. Recently Issued Accounting Pronouncements ASU 2016-13, Financial Instruments Credit Losses; Measurement of Credit Losses on Financial Instruments and ASU 2018-19, 2019-04 and 2019-05, Improvements to Topic 326, Financial Instruments-Credit Losses In June 2016, the FASB issued ASU 2016-13, which is intended to improve financial reporting by requiring more timely recognition of credit losses on loans and other financial instruments that are not accounted for at fair value through net income, including loans held for investment, held-to-maturity debt securities, trade and other receivables, net investment in leases and other such commitments. ASU 2016-13 requires that financial statement assets measured at an amortized cost be presented at the net amount expected to be collected through an allowance for credit losses that is deducted from the amortized cost basis. ASU 2018-19 also clarifies that receivables arising from operating leases are not within the scope of Subtopic 326-20. Instead, impairment of these receivables should be accounted for in accordance with Topic 842, Leases. ASU 2019-04 provides clarification on the measurement, presentation and disclosure of credit losses on financial assets. ASU 2019-05 provides an option to irrevocably elect the fair value option for certain financial assets previously measured at amortized cost basis for comparability to any new financial assets that elect the fair value option. We will adopt ASU 2016-13, ASU 2018-19, ASU 2019-04 and ASU 2019-05 collectively as of January 1, 2020 (the effective date) and do not anticipate there to be a material impact to our consolidated financial statements and related notes based on our ongoing evaluation. ASU 2018-13, Fair Value Measurement; Changes to the Disclosure Requirements for Fair Value Measurement In August 2018, the FASB issued ASU 2018-13, which modifies the disclosure requirements on fair value measurements in Topic 820 as follows: (a) disclosure removals: (i) the amount of and reasons for transfers between Level 1 and Level 2; (ii) the policy for timing of transfers between levels; and (iii) the valuation process for Level 3 fair value measurements; (b) disclosure modifications: (i) no requirement to disclose the timing of liquidation unless the investee has communicated the timing to the reporting entity or announced the timing publicly; and (ii) for Level 3 fair value measurements, a narrative description of measurement uncertainty at the reporting date, not the sensitivity to future changes; and (c) disclosure additions: (i) for recurring Level 3 measurements, disclose the changes in unrealized gains and losses for the period included in OCI and the statement of comprehensive income; and (ii) for Level 3 fair value measurements in the table of significant input, disclose the range and weighted average of the significant unobservable inputs and the way it is calculated. We will adopt ASU 2018-13 as of January 1, 2020 (the effective date) and will consider all level inputs but we do not anticipate there to be a material impact to our consolidated financial statements and related notes based on our ongoing evaluation.

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Schedule of Cash and Cash Equivalents	The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the accompanying condensed consolidated balance sheets to the combined amounts shown on the accompanying condensed consolidated statements of cash flows (in thousands): September 30, 2019 2018 Cash and cash equivalents $ 12,748 $ 225,518 Restricted cash 5,068 14,639 Total cash, cash equivalents and restricted cash $ 17,816 $ 240,157
Schedule of Restricted Cash	The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the accompanying condensed consolidated balance sheets to the combined amounts shown on the accompanying condensed consolidated statements of cash flows (in thousands): September 30, 2019 2018 Cash and cash equivalents $ 12,748 $ 225,518 Restricted cash 5,068 14,639 Total cash, cash equivalents and restricted cash $ 17,816 $ 240,157

Investments in Real Estate (Tab

Investments in Real Estate (Tables)	9 Months Ended
	Sep. 30, 2019
Investments [Abstract]
Schedule of Purchase Price Allocation	The allocations for these investments, in which we own a controlling financial interest, are set forth below in the aggregate for the nine months ended September 30, 2019 and 2018 , respectively (in thousands): Nine Months Ended September 30, 2019 2018 Land $ 33,408 $ 1,895 Building and improvements 174,708 14,458 In place leases 18,532 1,237 Below market leases (3,386 ) (201 ) Above market leases 2,046 — Net real estate assets acquired 225,308 17,389 Other, net 4,543 447 Aggregate purchase price $ 229,851 $ 17,836
Schedule of Weighted Average Lives of Acquired Intangible Assets and Liabilities	The acquired intangible assets and liabilities referenced above had weighted average lives of the following terms for the nine months ended September 30, 2019 and 2018 , respectively (in years): Nine Months Ended September 30, 2019 2018 Acquired intangible assets 5.6 5.8 Acquired intangible liabilities 7.7 6.5

Intangible Assets and Liabili_2

Intangible Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2019
Identified Intangibles, Net [Abstract]
Schedule of Intangible Assets and Liabilities	Intangible assets and liabilities consisted of the following as of September 30, 2019 and December 31, 2018 , respectively (in thousands, except weighted average remaining amortization terms): September 30, 2019 December 31, 2018 Balance Weighted Average Remaining Amortization in Years Balance Weighted Average Remaining Amortization in Years Assets: In place leases $ 459,307 9.4 $ 449,424 9.8 Tenant relationships 147,639 9.6 150,440 9.4 Above market leases 37,988 6.2 36,862 6.1 Below market leasehold interests (1) — 91,759 64.3 644,934 728,485 Accumulated amortization (384,996 ) (355,576 ) Total $ 259,938 9.2 $ 372,909 22.1 Liabilities: Below market leases $ 64,409 13.4 $ 61,395 14.6 Above market leasehold interests (1) — 20,610 49.2 64,409 82,005 Accumulated amortization (24,643 ) (20,859 ) Total $ 39,766 13.4 $ 61,146 25.3 (1) As a result of the adoption of Topic 842 on January 1, 2019, the presentation of below and above market leasehold interests as of September 30, 2019 does not conform to the prior year presentation.
Summary of Net Intangible Amortization	The following is a summary of the net intangible amortization for the three and nine months ended September 30, 2019 and 2018 , respectively (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Amortization recorded against rental income related to above and (below) market leases $ (1,658 ) $ (352 ) $ (2,678 ) $ (660 ) Rental expense related to above and (below) market leasehold interests (1) — 287 — 850 Amortization expense related to in place leases and tenant relationships 16,149 18,475 44,906 52,800 (1) As a result of the adoption of Topic 842 on January 1, 2019, the presentation of rental expense related to above and below market leasehold interests for the three and nine months ended September 30, 2019 does not conform to the prior year presentation.

Receivables and Other Assets (T

Receivables and Other Assets (Tables)	9 Months Ended
	Sep. 30, 2019
Receivables and Other Assets [Abstract]
Schedule of Receivables and Other Assets	Receivables and other assets consisted of the following as of September 30, 2019 and December 31, 2018 , respectively (in thousands): September 30, 2019 December 31, 2018 Tenant receivables, net $ 16,596 $ 14,588 Other receivables, net 17,218 16,078 Deferred financing costs, net 4,756 6,049 Deferred leasing costs, net 34,811 30,731 Straight-line rent receivables, net 104,794 92,973 Prepaid expenses, deposits, equipment and other, net 50,695 61,885 Derivative financial instruments - interest rate swaps 1,293 1,111 Total $ 230,163 $ 223,415
Summary of Amortization of Deferred Leasing Costs and Deferred Financing Costs	The following is a summary of the amortization of deferred leasing costs and financing costs for the three and nine months ended September 30, 2019 and 2018 , respectively (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Amortization expense related to deferred leasing costs $ 1,949 $ 1,357 $ 5,978 $ 4,166 Interest expense related to deferred financing costs 431 431 1,293 1,293

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Lease costs	Lessee - Lease Costs Lease costs consisted of the following for the three and nine months ended September 30, 2019 (in thousands): Three Months Ended Nine Months Ended September 30, 2019 September 30, 2019 Operating lease cost $ 3,221 $ 9,342 Variable lease cost 517 1,231 Total lease cost $ 3,738 $ 10,573 Lessee - Lease Term and Discount Rates The following is the weighted average remaining lease term and the weighted average discount rate for our operating leases as of September 30, 2019 (weighted average remaining lease term in years): September 30, 2019 Weighted-average remaining lease term 47.7 Weighted-average discount rate 5.3 %
Summary of lease repayments of operating lease liabilities	The following table summarizes the future minimum lease obligations of our operating leases as of September 30, 2019 under Topic 842 (in thousands): Year Amount 2019 $ 2,507 2020 10,160 2021 10,283 2022 10,440 2023 10,600 2024 10,263 Thereafter 624,145 Total undiscounted lease payments $ 678,398 Less: Interest (477,453 ) Present value of lease liabilities $ 200,945
Schedule of future minimum rental payments for operating leases	As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting standard, Topic 840, the following table summarizes the future minimum lease obligations of our operating leases as of December 31, 2018 (in thousands): Year Amount 2019 $ 10,309 2020 10,408 2021 9,877 2022 10,031 2023 10,132 Thereafter 639,234 Total $ 689,991
Schedule of undiscounted cash flows for future minimum rents	The following table summarizes the future minimum rent contractually due under operating leases, excluding tenant reimbursements of certain costs, as of September 30, 2019 under Topic 842 (in thousands): Year Amount 2019 $ 122,688 2020 493,571 2021 444,676 2022 391,467 2023 340,671 2024 295,613 Thereafter 1,144,912 Total $ 3,233,598 As previously disclosed in our 2018 Annual Report on Form 10-K and under the previous lease accounting standard, Topic 840, the following table summarizes the future minimum rent contractually due under operating leases, excluding tenant reimbursements of certain costs, as of December 31, 2018 (in thousands): Year Amount 2019 $ 497,083 2020 448,956 2021 401,871 2022 341,889 2023 294,451 Thereafter 1,244,246 Total $ 3,228,496

Debt (Tables)

Debt (Tables)	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Schedule of Debt	Debt consisted of the following as of September 30, 2019 and December 31, 2018 , respectively (in thousands): September 30, 2019 December 31, 2018 Unsecured revolving credit facility $ 15,000 $ — Unsecured term loans 500,000 500,000 Unsecured senior notes 2,050,000 1,850,000 Fixed rate mortgages 114,657 211,421 2,679,657 2,561,421 Deferred financing costs, net (16,088 ) (13,741 ) Discount, net 2,122 (6,448 ) Total $ 2,665,691 $ 2,541,232
Summary of Debt Maturities and Scheduled Principal Debt Repayments	The following table summarizes the debt maturities and scheduled principal repayments of our indebtedness as of September 30, 2019 (in thousands): Year Amount 2019 $ 598 2020 97,429 2021 2,504 2022 17,005 2023 612,121 Thereafter 1,950,000 Total $ 2,679,657
Schedule of Amortization of Deferred Financing Costs	As of September 30, 2019 , the future amortization of our deferred financing costs is as follows (in thousands): Year Amount 2019 $ 858 2020 2,555 2021 2,560 2022 2,561 2023 1,842 Thereafter 5,712 Total $ 16,088

Derivative Financial Instrume_2

Derivative Financial Instruments and Hedging Activities (Tables)	9 Months Ended
	Sep. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Interest Rate Derivatives	As of September 30, 2019 , we had the following outstanding interest rate derivatives that were designated as cash flow hedges of interest rate risk (in thousands, except number of instruments): Interest Rate Swaps September 30, 2019 Number of instruments 7 Notional amount $ 500,000 The table below presents the fair value of our derivative financial instruments designated as cash flow hedges as well as the classification in the accompanying condensed consolidated balance sheets as of September 30, 2019 and December 31, 2018 , respectively (in thousands): Asset Derivatives Liability Derivatives Fair Value at: Fair Value at: Derivatives Designated as Hedging Instruments: Balance Sheet Location September 30, 2019 December 31, 2018 Balance Sheet Location September 30, 2019 December 31, 2018 Interest rate swaps Receivables and other assets $ 1,293 $ 1,111 Derivative financial instruments $ 1,152 $ — The table below presents the gain or loss recognized on our derivative financial instruments designated as cash flow hedges as well as the classification in the accompanying condensed consolidated statements of operations for the three and nine months ended September 30, 2019 and 2018 , respectively (in thousands): Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from Accumulated OCI into Income Three Months Ended September 30, Three Months Ended September 30, Derivatives Cash Flow Hedging Relationships: 2019 2018 Statement of Operations Location 2019 2018 Interest rate swaps $ 2,559 $ 96 Interest expense $ 269 $ 223 Gain (Loss) Recognized in OCI on Derivative Gain (Loss) Reclassified from Accumulated OCI into Income Nine Months Ended September 30, Nine Months Ended September 30, Derivatives Cash Flow Hedging Relationships: 2019 2018 Statement of Operations Location 2019 2018 Interest rate swaps $ 2,508 $ 1,437 Interest expense $ 989 $ 450
Schedule of Offsetting Derivative Assets	Tabular Disclosure of Offsetting Derivatives The table below sets forth the net effects of offsetting and net presentation of our derivatives as of September 30, 2019 and December 31, 2018 , respectively (in thousands). The net amounts of derivative assets can be reconciled to the tabular disclosure of fair value. The tabular disclosure of fair value provides the location that derivative assets are presented in the accompanying condensed consolidated balance sheets. Offsetting of Derivative Assets Gross Amounts of Recognized Assets Gross Amounts Offset in the Balance Sheets Net Amounts of Assets Presented in the Balance Sheets Financial Instruments Cash Collateral Received Net Amount September 30, 2019 $ 571 $ 722 $ 1,293 $ — $ — $ 1,293 December 31, 2018 1,111 — 1,111 — — 1,111
Schedule of Offsetting Derivative Liabilities	Offsetting of Derivative Liabilities Gross Amounts of Recognized Liabilities Gross Amounts Offset in the Balance Sheets Net Amounts of Liabilities Presented in the Balance Sheets Financial Instruments Cash Collateral Received Net Amount September 30, 2019 $ 430 $ 722 $ 1,152 $ — $ — $ 1,152 December 31, 2018 — — — — — —

Redeemable Noncontrolling Int_2

Redeemable Noncontrolling Interests (Tables)	9 Months Ended
	Sep. 30, 2019
Temporary Equity Disclosure [Abstract]
Summary of Activity of Redeemable Noncontrolling Interests	The following is a summary of the activity of our redeemable noncontrolling interests as of September 30, 2019 and December 31, 2018 , respectively (in thousands): September 30, 2019 December 31, 2018 Beginning balance $ 6,544 $ 6,737 Net income attributable to noncontrolling interests 66 89 Distributions (141 ) (282 ) Fair value adjustment (425 ) — Redemptions (3,441 ) — Issuance of OP Units (2,603 ) — Ending balance $ — $ 6,544

Stockholders' Equity and Part_2

Stockholders' Equity and Partners' Capital (Tables)	9 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Schedule of Restricted Common Stock Activity	The following is a summary of our restricted common stock activity as of September 30, 2019 and 2018 , respectively: September 30, 2019 September 30, 2018 Restricted Common Stock Weighted Average Grant Date Fair Value Restricted Common Stock Weighted Average Grant Date Fair Value Beginning balance 624,349 $ 29.35 589,606 $ 29.38 Granted 333,820 26.06 360,700 28.70 Vested (338,540 ) 28.53 (255,946 ) 28.68 Forfeited (13,951 ) 28.22 (38,882 ) 28.97 Ending balance 605,678 $ 28.05 655,478 $ 29.30

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The table below presents the carrying amounts and fair values of our financial instruments on a recurring basis as of September 30, 2019 and December 31, 2018 (in thousands): September 30, 2019 December 31, 2018 Carrying Amount Fair Value Carrying Amount Fair Value Level 2 - Assets: Derivative financial instruments $ 1,293 $ 1,293 $ 1,111 $ 1,111 Level 2 - Liabilities: Derivative financial instruments $ 1,152 $ 1,152 $ — $ — Debt 2,665,691 2,734,978 2,541,232 2,508,599

Per Share Data of HTA (Tables)

Per Share Data of HTA (Tables)	9 Months Ended
	Sep. 30, 2019
HTA, Inc.
Earnings Per Share
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 for the three and nine months ended September 30, 2019 and 2018 , respectively (in thousands, except per share data): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Numerator: Net (loss) income $ (8,577 ) $ 176,348 $ 21,722 $ 202,021 Net income attributable to noncontrolling interests 114 (3,362 ) (486 ) (3,887 ) Net income attributable to common stockholders $ (8,463 ) $ 172,986 $ 21,236 $ 198,134 Denominator: Weighted average shares outstanding - basic 205,277 207,513 205,156 205,950 Dilutive shares - OP Units convertible into common stock — 3,931 3,870 4,018 Adjusted weighted average shares outstanding - diluted 205,277 211,444 209,026 209,968 Earnings per common share - basic Net (loss) income attributable to common stockholders $ (0.04 ) $ 0.83 $ 0.10 $ 0.96 Earnings per common share - diluted Net (loss) income attributable to common stockholders $ (0.04 ) $ 0.82 $ 0.10 $ 0.94

Per Unit Data of HTALP (Tables)

Per Unit Data of HTALP (Tables)	9 Months Ended
	Sep. 30, 2019
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 and nine months ended September 30, 2019 , and 2018 , respectively (in thousands, except per unit data): Three Months Ended September 30, Nine Months Ended September 30, 2019 2018 2019 2018 Numerator: Net (loss) income $ (8,577 ) $ 176,348 $ 21,722 $ 202,021 Net income attributable to noncontrolling interests — (18 ) (66 ) (65 ) Net (loss) income attributable to common unitholders $ (8,577 ) $ 176,330 $ 21,656 $ 201,956 Denominator: Weighted average OP Units outstanding - basic 209,164 211,444 209,056 209,968 Dilutive units - OP Units convertible into common units — — — — Adjusted weighted average units outstanding - diluted 209,164 211,444 209,056 209,968 Earnings per common unit - basic: Net (loss) income attributable to common unitholders $ (0.04 ) $ 0.83 $ 0.10 $ 0.96 Earnings per common unit - diluted: Net (loss) income attributable to common unitholders $ (0.04 ) $ 0.83 $ 0.10 $ 0.96

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	9 Months Ended
	Sep. 30, 2019
Supplemental Cash Flow Elements [Abstract]
Schedule of Supplemental Cash Flow Information	The following is the supplemental cash flow information for the nine months ended September 30, 2019 and 2018 , respectively (in thousands): Nine Months Ended September 30, 2019 2018 Supplemental Disclosure of Cash Flow Information: Interest paid $ 84,155 $ 87,303 Income taxes paid 1,846 1,656 Cash paid for operating leases 9,277 — Supplemental Disclosure of Noncash Investing and Financing Activities: Accrued capital expenditures $ 3,922 $ 243 Dividend distributions declared, but not paid 66,397 65,544 Issuance of OP Units in HTALP 2,603 — Issuance of OP Units in HTALP in connection with an acquisition 2,000 — Redemption of noncontrolling interest 7,263 5,195 Redemption of redeemable noncontrolling interest 3,441 — ROU assets obtained in exchange for lease obligations 200,879 —

Organization and Description _2

Organization and Description of Business (Details)	Sep. 30, 2019States
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of states in which the Company operates	33

Summary of Significant Accoun_4

Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 12,748	$ 225,518	$ 12,748	$ 225,518	$ 126,221
Restricted cash	5,068	14,639	5,068	14,639	7,309
Total cash, cash equivalents and restricted cash	17,816	240,157	17,816	240,157	133,530	$ 118,560
Real estate investments [Abstract]
Depreciation expense			158,900	151,500
Redeemable Noncontrolling Interests [Abstract]
Redeemable noncontrolling interests	$ 0		$ 0		$ 6,544	6,737
Unconsolidated Joint Ventures [Abstract]
Investment in unconsolidated joint ventures, ownership percentage	50.00%		50.00%		50.00%
Investment in unconsolidated joint venture	$ 66,348		$ 66,348		$ 67,172
Income (loss) from unconsolidated joint venture	422	432	1,456	1,405
Recently Issued or Adopted Accounting Pronouncements [Abstract]
General and administrative	$ 9,788	8,770	$ 31,157	26,281
ASU 2016-02
Recently Issued or Adopted Accounting Pronouncements [Abstract]
General and administrative		1,500		3,700
ASU 2018-20
Recently Issued or Adopted Accounting Pronouncements [Abstract]
Lessor, variable payments		3,500		10,500
Minimum
Leases [Abstract]
Lessor, term of contract	3 years		3 years
Maximum
Leases [Abstract]
Lessor, term of contract	7 years		7 years
Building and Building Improvements
Real estate investments [Abstract]
Depreciation expense	$ 54,900	50,200
Healthcare Trust of America Holdings, LP (HTALP)
Partners' Capital Notes [Abstract]
Limited partner's capital, units issued (in shares)	3,848,279		3,848,279		3,929,083
Limited partner's capital, units outstanding (in shares)	3,848,279		3,848,279		3,929,083
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents [Abstract]
Cash and cash equivalents	$ 12,748		$ 12,748		$ 126,221
Restricted cash	5,068		5,068		7,309
Total cash, cash equivalents and restricted cash	17,816	240,157	17,816	240,157	133,530	$ 118,560
Redeemable Noncontrolling Interests [Abstract]
Redeemable noncontrolling interests	0		0		6,544
Unconsolidated Joint Ventures [Abstract]
Investment in unconsolidated joint venture	66,348		66,348		$ 67,172
Income (loss) from unconsolidated joint venture	422	432	1,456	1,405
Recently Issued or Adopted Accounting Pronouncements [Abstract]
General and administrative	$ 9,788	$ 8,770	$ 31,157	$ 26,281

Investments in Real Estate - Ac

Investments in Real Estate - Acquisitions (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Investments [Abstract]
Aggregate purchase price		$ 229.9
Closing costs		$ 1.5
Issuance of limited partner OP Units in connection with acquisitions	$ 2
Issuance of limited partner units in connection with acquisitions (in shares)	72,294

Investments in Real Estate - Pu

Investments in Real Estate - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Sep. 30, 2018
Asset Acquisition
Land	$ 33,408	$ 1,895
Building and improvements	174,708	14,458
In place leases	18,532	1,237
Below market leases	(3,386)	(201)
Above market leases	2,046	0
Net real estate assets acquired	225,308	17,389
Other, net	4,543	447
Aggregate purchase price	$ 229,851	$ 17,836

Investments in Real Estate - We

Investments in Real Estate - Weighted Average Lives (Details)	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Investments [Abstract]
Acquired intangible assets (in years)	5 years 7 months 6 days	5 years 9 months 18 days
Acquired intangible liabilities (in years)	7 years 8 months 12 days	6 years 6 months

Impairment (Details)

Impairment (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)building
Discontinued Operations and Disposal Groups [Abstract]
Impairment | $	$ 0	$ 4,281	$ 0	$ 8,887
Number of impaired assets | building				6

Intangible Assets and Liabili_3

Intangible Assets and Liabilities - Summary of Intangible Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2019	Dec. 31, 2018
Assets
Gross	$ 644,934	$ 728,485
Accumulated amortization	(384,996)	(355,576)
Total	$ 259,938	$ 372,909
Weighted Average Remaining Amortization in Years	9 years 2 months 12 days	22 years 1 month 6 days
Liabilities
Gross	$ 64,409	$ 82,005
Accumulated amortization	(24,643)	(20,859)
Total	$ 39,766	$ 61,146
Weighted Average Remaining Amortization in Years	13 years 4 months 24 days	25 years 3 months 18 days
Below market leases
Liabilities
Gross	$ 64,409	$ 61,395
Weighted Average Remaining Amortization in Years	13 years 4 months 24 days	14 years 7 months 6 days
Above market leasehold interests
Liabilities
Gross	$ 0	$ 20,610
Weighted Average Remaining Amortization in Years		49 years 2 months 12 days
In place leases
Assets
Gross	$ 459,307	$ 449,424
Weighted Average Remaining Amortization in Years	9 years 4 months 24 days	9 years 9 months 18 days
Tenant relationships
Assets
Gross	$ 147,639	$ 150,440
Weighted Average Remaining Amortization in Years	9 years 7 months 6 days	9 years 4 months 24 days
Above market leases
Assets
Gross	$ 37,988	$ 36,862
Weighted Average Remaining Amortization in Years	6 years 2 months 12 days	6 years 1 month 6 days
Below market leasehold interests
Assets
Gross	$ 0	$ 91,759
Weighted Average Remaining Amortization in Years		64 years 3 months 18 days

Intangible Assets and Liabili_4

Intangible Assets and Liabilities - Summary of Intangible Amortization (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Amortization recorded against rental income related to above and (below) market leases
Schedule of Finite-Lived Intangible Assets and Liabilities [Line Items]
Amortization of intangible assets and liabilities	$ (1,658)	$ (352)	$ (2,678)	$ (660)
Rental expense related to above and (below) market leasehold interests (1)
Schedule of Finite-Lived Intangible Assets and Liabilities [Line Items]
Amortization of intangible assets and liabilities	0	287	0	850
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	$ 16,149	$ 18,475	$ 44,906	$ 52,800

Receivables and Other Assets -

Receivables and Other Assets - Schedule of Receivables and Other Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Receivables and Other Assets [Abstract]
Tenant receivables, net	$ 16,596	$ 14,588
Other receivables, net	17,218	16,078
Deferred financing costs, net	4,756	6,049
Deferred leasing costs, net	34,811	30,731
Straight-line rent receivables, net	104,794	92,973
Prepaid expenses, deposits, equipment and other, net	50,695	61,885
Derivative financial instruments - interest rate swaps	1,293	1,111
Total	$ 230,163	$ 223,415

Receivables and Other Assets _2

Receivables and Other Assets - Amortization (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Receivables and Other Assets [Abstract]
Amortization expense related to deferred leasing costs	$ 1,949	$ 1,357	$ 5,978	$ 4,166
Interest expense related to deferred financing costs	$ 431	$ 431	$ 1,293	$ 1,293

Leases (Details)

Leases (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
ROU asset			$ (19,000)
ROU asset calculation, above and below market leasehold interest balance			66,500
Lease not yet commenced, liability	$ 3,300	$ 3,300
Operating lease cost	3,221	9,342
Variable lease cost	517	1,231
Total lease cost	$ 3,738	$ 10,573
Weighted-average remaining lease term	47 years 8 months 12 days	47 years 8 months 12 days
Weighted-average discount rate	5.30%	5.30%
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2019	$ 2,507	$ 2,507
2020	10,160	10,160
2021	10,283	10,283
2022	10,440	10,440
2023	10,600	10,600
2024	10,263	10,263
Thereafter	624,145	624,145
Total undiscounted lease payments	678,398	678,398
Less: Interest	(477,453)	(477,453)
Present value of lease liabilities	200,945	200,945	0
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2019			10,309
2020			10,408
2021			9,877
2022			10,031
2023			10,132
Thereafter			639,234
Total			689,991
Rental and other revenues from operating lease payments	173,100	511,500
Variable lease payments	39,100	115,200
Lessor, Operating Lease, Payments, Fiscal Year Maturity [Abstract]
2019	122,688	122,688
2020	493,571	493,571
2021	444,676	444,676
2022	391,467	391,467
2023	340,671	340,671
2024	295,613	295,613
Thereafter	1,144,912	1,144,912
Total	$ 3,233,598	$ 3,233,598
Operating Leases, Future Minimum Payments Receivable [Abstract]
2019			497,083
2020			448,956
2021			401,871
2022			341,889
2023			294,451
Thereafter			1,244,246
Total			$ 3,228,496
Minimum
Lessee, Lease, Description [Line Items]
Extended lease term	1 year	1 year
Maximum
Lessee, Lease, Description [Line Items]
Extended lease term	10 years	10 years

Debt - Schedule of Debt (Detail

Debt - Schedule of Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument
Total debt, gross	$ 2,679,657	$ 2,561,421
Deferred financing costs, net	(16,088)	(13,741)
Discount, net	2,122	(6,448)
Total	2,665,691	2,541,232
Unsecured term loans
Debt Instrument
Total debt, gross	500,000	500,000
Unsecured senior notes
Debt Instrument
Total debt, gross	2,050,000	1,850,000
Fixed rate mortgages | Fixed rate mortgages
Debt Instrument
Total debt, gross	114,657	211,421
Unsecured revolving credit facility
Debt Instrument
Unsecured revolving credit facility	$ 15,000	$ 0

Debt - Narrative (Details)

Debt - Narrative (Details) - USD ($)	1 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument
Outstanding amount	$ 2,679,657,000	$ 2,679,657,000		$ 2,679,657,000		$ 2,561,421,000
Loss on extinguishment of debt, net		21,646,000	$ 1,092,000	21,646,000	$ 1,092,000
Payments on secured mortgage loans				96,765,000	173,212,000
Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Loss on extinguishment of debt, net		21,646,000	$ 1,092,000	21,646,000	1,092,000
Payments on secured mortgage loans				96,765,000	$ 173,212,000
Unsecured term loans
Debt Instrument
Outstanding amount	500,000,000	500,000,000		500,000,000		500,000,000
Unsecured term loans | $300.0 Million Unsecured Term Loan due 2023
Debt Instrument
Outstanding amount	$ 300,000,000	$ 300,000,000		$ 300,000,000
Basis spread on variable rate				1.10%
Weighted average interest rate with interest rate swap impact	2.52%	2.52%		2.52%
Unsecured term loans | $300.0 Million Unsecured Term Loan due 2023 | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Outstanding amount							$ 300,000,000
Unsecured term loans | $300.0 Million Unsecured Term Loan due 2023 | LIBOR | Minimum
Debt Instrument
Basis spread on variable rate				0.90%
Unsecured term loans | $300.0 Million Unsecured Term Loan due 2023 | LIBOR | Maximum
Debt Instrument
Basis spread on variable rate				1.75%
Unsecured term loans | $200.0 Million Unsecured Term Loan due 2024 | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Outstanding amount	$ 200,000,000	$ 200,000,000		$ 200,000,000
Basis spread on variable rate				1.00%
Weighted average interest rate with interest rate swap impact	2.32%	2.32%		2.32%
Debt instrument, face amount	$ 200,000,000	$ 200,000,000		$ 200,000,000		200,000,000
Unsecured term loans | $200.0 Million Unsecured Term Loan due 2024 | LIBOR | Minimum | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Basis spread on variable rate				0.75%
Unsecured term loans | $200.0 Million Unsecured Term Loan due 2024 | LIBOR | Maximum | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Basis spread on variable rate				1.65%
Unsecured senior notes
Debt Instrument
Outstanding amount	2,050,000,000	2,050,000,000		$ 2,050,000,000		1,850,000,000
Unsecured senior notes | $300.0 Million Unsecured Senior Notes due 2021 | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Debt instrument, face amount	300,000,000	300,000,000		300,000,000
Loss on extinguishment of debt, net		7,400,000
Unsecured senior notes | Unsecured Senior Notes | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Debt instrument, face amount	900,000,000	900,000,000		900,000,000
Unsecured senior notes | $400.0 Million Unsecured Senior Notes due 2022 | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Debt instrument, face amount	400,000,000	400,000,000		400,000,000			$ 400,000,000
Loss on extinguishment of debt, net		10,900,000
Unsecured senior notes | $500.0 Million Unsecured Senior Notes due 2027 | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Outstanding amount	$ 500,000,000	$ 500,000,000		$ 500,000,000
Debt instrument, effective interest rate							3.81%
Debt instrument, face amount							$ 500,000,000
Debt instrument, stated interest rate							3.75%
Debt instrument, percentage of principal amount received							99.49%
Unsecured senior notes | $300.0 Million Unsecured Senior Notes due 2023 | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Debt instrument, effective interest rate	3.80%	3.80%		3.80%
Debt instrument, face amount	$ 300,000,000	$ 300,000,000		$ 300,000,000
Debt instrument, stated interest rate	3.70%	3.70%		3.70%
Debt instrument, percentage of principal amount received	99.19%	99.19%		99.19%
Unsecured senior notes | $600.0 Million Unsecured Senior Notes due 2026 | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Outstanding amount	$ 600,000,000	$ 600,000,000		$ 600,000,000
Debt instrument, effective interest rate	2.89%	2.89%		2.89%
Debt instrument, face amount	$ 600,000,000	$ 600,000,000		$ 600,000,000
Debt instrument, stated interest rate	3.50%	3.50%		3.50%
Debt instrument, percentage of principal amount received	103.66%	103.66%		103.66%
Unsecured senior notes | $650.0 Million Unsecured Senior Notes | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Debt instrument, effective interest rate	3.14%	3.14%		3.14%
Debt instrument, face amount	$ 650,000,000	$ 650,000,000		$ 650,000,000
Debt instrument, stated interest rate	3.10%	3.10%		3.10%
Debt instrument, percentage of principal amount received	99.66%	99.66%		99.66%
Unsecured senior notes | $350.0 Million Unsecured Senior Notes | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Debt instrument, face amount	$ 350,000,000	$ 350,000,000		$ 350,000,000
Unsecured senior notes | $250.0 Million Unsecured Senior Notes | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Debt instrument, effective interest rate	3.53%	3.53%		3.53%
Proceeds from unsecured senior notes	$ 250,000,000
Debt instrument, percentage of principal amount received	99.72%	99.72%		99.72%
Fixed rate mortgages | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Weighted average interest rate	3.93%	3.93%		3.93%
Payments on secured mortgage loans				$ 96,800,000
Fixed rate mortgages | Minimum | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Debt instrument, effective interest rate	2.85%	2.85%		2.85%
Fixed rate mortgages | Maximum | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Debt instrument, effective interest rate	4.00%	4.00%		4.00%
Unsecured revolving credit facility | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Line of credit facility, borrowing capacity							$ 1,300,000,000
Outstanding amount	$ 15,000,000	$ 15,000,000		$ 15,000,000
Maximum borrowing capacity, conditional increase							750,000,000
Conditional maximum borrowing capacity							2,050,000,000
Basis spread on variable rate				1.00%
Line of credit facility, commitment fee				0.20%
Debt instrument, effective interest rate	3.24%	3.24%		3.24%
Unsecured revolving credit facility | Minimum | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Line of credit facility, commitment fee				0.13%
Unsecured revolving credit facility | Maximum | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Line of credit facility, commitment fee				0.30%
Unsecured revolving credit facility | LIBOR | Minimum | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Basis spread on variable rate				0.83%
Unsecured revolving credit facility | LIBOR | Maximum | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Basis spread on variable rate				1.55%
Unsecured revolving credit facility | Line of Credit | Healthcare Trust of America Holdings, LP (HTALP)
Debt Instrument
Line of credit facility, borrowing capacity							$ 1,000,000,000
Fixed rate mortgages | Fixed rate mortgages
Debt Instrument
Outstanding amount	$ 114,657,000	$ 114,657,000		$ 114,657,000		$ 211,421,000

Debt - Principal Maturity Sched

Debt - Principal Maturity Schedule (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Disclosure [Abstract]
2019	$ 598
2020	97,429
2021	2,504
2022	17,005
2023	612,121
Thereafter	1,950,000
Total	$ 2,679,657	$ 2,561,421

Debt - Amortization of Deferred

Debt - Amortization of Deferred Financing Costs (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Debt Disclosure [Abstract]
2019	$ 858
2020	2,555
2021	2,560
2022	2,561
2023	1,842
Thereafter	5,712
Total	$ 16,088	$ 13,741

Derivative Financial Instrume_3

Derivative Financial Instruments and Hedging Activities - Derivative Instruments Fair Value Table (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)derivative	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)derivative	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Derivatives, Fair Value
Derivatives expected to be reclassified in the next 12 months	$ 1,200,000		$ 1,200,000
Asset Derivatives	1,293,000		1,293,000		$ 1,111,000
Liability Derivatives	$ 1,152,000		$ 1,152,000		0
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swaps
Derivatives, Fair Value
Number of instruments | derivative	7		7
Notional amount	$ 500,000,000		$ 500,000,000
Gain (Loss) Recognized in OCI on Derivative	2,559,000	$ 96,000	2,508,000	$ 1,437,000
Gain (Loss) Reclassified from Accumulated OCI into Income	269,000	$ 223,000	989,000	$ 450,000
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swaps | Receivables and other assets
Derivatives, Fair Value
Asset Derivatives	1,293,000		1,293,000		1,111,000
Designated as Hedging Instrument | Cash Flow Hedging | Interest rate swaps | Derivative financial instruments
Derivatives, Fair Value
Liability Derivatives	$ 1,152,000		$ 1,152,000		$ 0

Derivative Financial Instrume_4

Derivative Financial Instruments and Hedging Activities - Derivative Offsetting (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Offsetting of Derivative Assets
Asset Derivatives	$ 571	$ 1,111
Gross Amounts Offset in the Balance Sheets	722	0
Net Amounts of Assets Presented in the Balance Sheets	1,293	1,111
Financial Instruments	0	0
Cash Collateral Received	0	0
Net Amount	1,293	1,111
Offsetting of Derivative Liabilities
Gross Amounts of Recognized Liabilities	430	0
Gross Amounts Offset in the Balance Sheets	722	0
Net Amounts of Liabilities Presented in the Balance Sheets	1,152	0
Financial Instruments	0	0
Cash Collateral Received	0	0
Net Amount	1,152	$ 0
Fair value of derivatives in net liability position, including accrued interest, excluding nonperformance risk adjustment	400
Derivatives in net liability position, potential termination obligation	$ 400

Redeemable Noncontrolling Int_3

Redeemable Noncontrolling Interests (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Increase (Decrease) in Temporary Equity [Roll Forward]
Beginning balance	$ 6,544	$ 6,737	$ 6,737
Net income attributable to noncontrolling interests	66		89
Distributions	(141)		(282)
Fair value adjustment	(425)		0
Redemptions	(3,441)		0
Issuance of OP Units	(2,603)	$ 0	0
Ending balance	$ 0		$ 6,544

Stockholders' Equity and Part_3

Stockholders' Equity and Partners' Capital - Narrative (Details) $ / shares in Units, $ in Thousands	Oct. 28, 2019$ / shares	Oct. 29, 2019USD ($)	Sep. 30, 2019USD ($)$ / sharesshares	Jun. 30, 2019USD ($)	Sep. 30, 2019USD ($)$ / sharesshares	Jun. 30, 2019USD ($)$ / shares	Mar. 31, 2019$ / shares	Sep. 30, 2018USD ($)$ / shares	Jun. 30, 2018$ / shares	Mar. 31, 2018$ / shares	Sep. 30, 2019USD ($)$ / sharesshares	Sep. 30, 2018USD ($)	Dec. 31, 2018USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Issuance of OP Units in HTALP						$ 2,603
Anticipated net proceeds from forward equity agreement				$ 51,800
Shares repurchased during period (in shares) | shares											345,786
Shares repurchased during period (in dollars per share) | $ / shares											$ 24.65
Stock repurchased during period, value											$ 8,500
Remaining amount of common stock available for repurchase			$ 224,300		$ 224,300						224,300
Common Stock Dividends
Dividends declared (in dollars per share) | $ / shares					$ 0.315	$ 0.310	$ 0.310	$ 0.310	$ 0.305	$ 0.305
Restricted Common Stock
Incentive Plan
Nonvested awards, total compensation cost not yet recognized			7,300		$ 7,300						$ 7,300
Period for recognition (in years)											1 year 4 months 24 days
Restricted Common Stock | General and Administrative Expense
Incentive Plan
Compensation expense					2,300			$ 2,100			$ 7,800	$ 7,800
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Anticipated net proceeds from forward equity agreement		$ 172,700
Common Stock Dividends
Dividends declared (in dollars per share) | $ / shares	$ 0.315
ATM Offering Program
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Amount remaining available for issuance under the new ATM			$ 448,200		$ 448,200						$ 448,200		$ 500,000
Issuance of common stock in HTA (in shares) | shares			1,800,000
Issuance of OP Units in HTALP			$ 51,800
Shares issued (in dollars per share) | $ / shares			$ 28.13		$ 28.13						$ 28.13
2006 Incentive Plan
Incentive Plan
Number of shares authorized (in shares) | shares			5,000,000		5,000,000						5,000,000
Number of shares available for grant (in shares) | shares			1,065,132		1,065,132						1,065,132
Healthcare Trust of America Holdings, LP (HTALP)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend distribution ratio											1
Common Stock Dividends
Dividends declared (in dollars per share) | $ / shares					$ 0.315	$ 0.310	$ 0.310	$ 0.310	$ 0.305	$ 0.305
HTA, Inc. | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Anticipated net proceeds from forward equity agreement		$ 172,700

Stockholders' Equity and Part_4

Stockholders' Equity and Partners' Capital - Restricted Common Stock Activity (Details) - Restricted Common Stock - $ / shares	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Restricted Common Stock
Balance as of beginning of period (in shares)	624,349	589,606
Granted (in shares)	333,820	360,700
Vested (in shares)	(338,540)	(255,946)
Forfeited (in shares)	(13,951)	(38,882)
Balance as of end of period (in shares)	605,678	655,478
Weighted Average Grant Date Fair Value
Balance as of beginning of period (in dollars per share)	$ 29.35	$ 29.38
Granted (in dollars per share)	26.06	28.70
Vested (in dollars per share)	28.53	28.68
Forfeited (in dollars per share)	28.22	28.97
Balance as of end of period (in dollars per share)	$ 28.05	$ 29.30

Fair Value of Financial Instr_3

Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets:
Derivative financial instruments - interest rate swaps	$ 1,293	$ 1,111
Liabilities:
Derivative financial instruments - interest rate swaps	1,152	0
Debt	2,665,691	2,541,232
Carrying Amount
Assets:
Derivative financial instruments - interest rate swaps	1,293	1,111
Liabilities:
Derivative financial instruments - interest rate swaps	1,152	0
Debt	2,665,691	2,541,232
Fair Value, Measurements, Recurring | Fair Value | Level 2
Assets:
Derivative financial instruments - interest rate swaps	1,293	1,111
Liabilities:
Derivative financial instruments - interest rate swaps	1,152	0
Debt	$ 2,734,978	$ 2,508,599

Per Share Data of HTA (Details)

Per Share Data of HTA (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		1 Months Ended		3 Months Ended		9 Months Ended
		Oct. 29, 2019	Jun. 30, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share
Forward equity agreement, shares to be sold (in shares)			1,800
Stock issued, share price (in dollars per share)			$ 28.13
Anticipated net proceeds from forward equity agreement			$ 51,800
Anti-dilutive securities excluded from calculation (in shares)				24		9
Numerator:
Net (loss) income				$ (8,577)	$ 176,348	$ 21,722	$ 202,021
Net income attributable to noncontrolling interests	[1]			114	(3,362)	(486)	(3,887)
Net (loss) income attributable to common stockholders/unitholders				$ (8,463)	$ 172,986	$ 21,236	$ 198,134
Denominator:
Weighted average shares/units outstanding - basic (in shares)				205,277	207,513	205,156	205,950
Dilutive shares - partnership units convertible into common stock (in shares)				0	3,931	3,870	4,018
Adjusted weighted average number of shares/units outstanding — diluted (in shares)				205,277	211,444	209,026	209,968
Earnings per common share - basic
Net (loss) income attributable to common stockholders/unitholders (in dollars per share)				$ (0.04)	$ 0.83	$ 0.10	$ 0.96
Earnings per common share - diluted
Net (loss) income attributable to common stockholders/unitholders (in dollars per share)				$ (0.04)	$ 0.82	$ 0.10	$ 0.94
Subsequent Event
Earnings Per Share
Forward equity agreement, shares to be sold (in shares)		6,000
Stock issued, share price (in dollars per share)		$ 28.64
Anticipated net proceeds from forward equity agreement		$ 172,700
[1]	Includes amounts attributable to redeemable noncontrolling interests.

Per Unit Data of HTALP (Details

Per Unit Data of HTALP (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		1 Months Ended		3 Months Ended						9 Months Ended
		Oct. 29, 2019	Jun. 30, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Forward equity agreement, shares to be sold (in shares)			1,800
Numerator:
Net (loss) income				$ (8,577)			$ 176,348			$ 21,722	$ 202,021
Net income attributable to noncontrolling interests	[1]			114			(3,362)			(486)	(3,887)
Net (loss) income attributable to common stockholders/unitholders				$ (8,463)			$ 172,986			$ 21,236	$ 198,134
Denominator:
Weighted average shares/units outstanding - basic (in shares)				205,277			207,513			205,156	205,950
Dilutive units - partnership units convertible into common units (in shares)				0			3,931			3,870	4,018
Adjusted weighted average number of shares/units outstanding — diluted (in shares)				205,277			211,444			209,026	209,968
Earnings per common unit - basic:
Net (loss) income attributable to common stockholders/unitholders (in dollars per share)				$ (0.04)			$ 0.83			$ 0.10	$ 0.96
Earnings per common unit - diluted:
Net (loss) income attributable to common stockholders/unitholders (in dollars per share)				$ (0.04)			$ 0.82			$ 0.10	$ 0.94
Subsequent Event
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Forward equity agreement, shares to be sold (in shares)		6,000
HTA, Inc. | Subsequent Event
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Forward equity agreement, shares to be sold (in shares)		6,000
Healthcare Trust of America Holdings, LP (HTALP)
Numerator:
Net (loss) income				$ (8,577)			$ 176,348			$ 21,722	$ 202,021
Net income attributable to noncontrolling interests				0			(18)			(66)	(65)
Net (loss) income attributable to common stockholders/unitholders				$ (8,577)	$ 16,560	$ 13,673	$ 176,330	$ 15,643	$ 9,983	$ 21,656	$ 201,956
Denominator:
Weighted average shares/units outstanding - basic (in shares)				209,164			211,444			209,056	209,968
Dilutive units - partnership units convertible into common units (in shares)				0			0			0	0
Adjusted weighted average number of shares/units outstanding — diluted (in shares)				209,164			211,444			209,056	209,968
Earnings per common unit - basic:
Net (loss) income attributable to common stockholders/unitholders (in dollars per share)				$ (0.04)			$ 0.83			$ 0.10	$ 0.96
Earnings per common unit - diluted:
Net (loss) income attributable to common stockholders/unitholders (in dollars per share)				$ (0.04)			$ 0.83			$ 0.10	$ 0.96
[1]	Includes amounts attributable to redeemable noncontrolling interests.

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Supplemental Disclosure of Cash Flow Information:
Interest paid	$ 84,155	$ 87,303
Income taxes paid	1,846	1,656
Cash paid for operating leases	9,277	0
Supplemental Disclosure of Noncash Investing and Financing Activities:
Accrued capital expenditures	3,922	243
Dividend distributions declared, but not paid	66,397	65,544
Issuance of OP Units in HTALP	2,603	0	$ 0
Issuance of OP Units in HTALP in connection with an acquisition	2,000	0
Redemption of noncontrolling interest	7,263	5,195
Redemption of redeemable noncontrolling interest	3,441	0
ROU assets obtained in exchange for lease obligations	$ 200,879	$ 0