CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL - USD ($) shares in Thousands, $ 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 units) at Dec. 31, 2017			204,892	4,124
Increase (Decrease) in Partners' Capital [Roll Forward]
Share-based award transactions, net		3,507	$ 3,507
Share-based award transactions, net (in units)			289
Redemption and cancellation of general partner units		(2,709)	$ (2,709)
Redemption and cancellation of general partner units (in units)			(92)
Redemption of limited partner units and other		0	$ 2,413	$ (2,413)
Redemption of limited partner units and other (in units)			91	(91)
Distributions declared ($0.310 per common unit)		(63,866)	$ (62,559)	$ (1,307)
Net income	$ 9,802	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 units) at Mar. 31, 2018			205,180	4,033
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 units) at Dec. 31, 2018			205,267	3,929
Increase (Decrease) in Partners' Capital [Roll Forward]
Share-based award transactions, net		3,389	$ 3,389	$ 0
Share-based award transactions, net (in units)			293
Redemption and cancellation of general partner units		(11,926)	$ (11,926)
Redemption and cancellation of general partner units (in units)			(478)
Redemption of limited partner units and other		0	$ 527	$ (527)
Redemption of limited partner units and other (in units)			18	(18)
Distributions declared ($0.310 per common unit)		(64,884)	$ (63,578)	$ (1,306)
Net income	13,440	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 units) at Mar. 31, 2019			205,100	3,911

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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The amount of ownership interest of different classes of partners in limited partnership.

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