CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2017	Dec. 31, 2016
Equity:
Preferred stock, par value (usd 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
Healthcare Trust of America Holdings, LP (HTALP)
Partners’ Capital:
Limited partner's capital, units issued (in shares)	4,343,782	4,323,095
Limited partner's capital, units outstanding (in shares)	4,343,782	4,323,095
General partner's capital, units issued (in shares)	141,825,110	141,719,134
General partner's capital, units outstanding (in shares)	141,825,110	141,719,134
Class A Common Stock
Equity:
Common stock, par value (usd 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)	141,825,110	141,719,134
Common stock, shares outstanding (in shares)	141,825,110	141,719,134