Per Share Data of HTA (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2017	Mar. 31, 2016
Numerator:
Net income		$ 14,000	$ 10,036
Net income attributable to noncontrolling interests	[1]	(455)	(176)
Net income attributable to common stockholders/unitholders		$ 13,545	$ 9,860
Denominator:
Weighted average units outstanding - basic (in shares)		141,780	129,336
Weighted average number of shares/units outstanding — diluted (in shares)		146,117	131,240
Earnings per common share - basic
Net income attributable to common stockholders (in usd per share)		$ 0.10	$ 0.08
Earnings per common share - diluted
Net income attributable to common stockholders (in usd per share)		$ 0.09	$ 0.08
HTA, Inc.
Numerator:
Net income		$ 14,000	$ 10,036
Net income attributable to noncontrolling interests		(455)	(176)
Net income attributable to common stockholders/unitholders		$ 13,545	$ 9,860
Denominator:
Weighted average units outstanding - basic (in shares)		141,780	129,336
Dilutive shares (in shares)		4,337	1,904
Weighted average number of shares/units outstanding — diluted (in shares)		146,117	131,240
Earnings per common share - basic
Net income attributable to common stockholders (in usd per share)		$ 0.10	$ 0.08
Earnings per common share - diluted
Net income attributable to common stockholders (in usd per share)		$ 0.09	$ 0.08

[1] Includes amounts attributable to redeemable noncontrolling interests.