CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (Parenthetical) - $ / shares	12 Months Ended
Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Healthcare Trust of America Holdings, LP (HTALP)
Partners' distribution per unit (in dollars per share)	$ 1.21	$ 1.19	$ 1.17

Cash dividends declared or paid to each outstanding limited partnership and general partnership unit during the reporting period.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration