CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenues:
Rental income		$ 696,030,000	$ 612,556,000	$ 460,563,000
Interest and other operating income		396,000	1,434,000	365,000
Total revenues		696,426,000	613,990,000	460,928,000
Expenses:
Rental		220,617,000	192,147,000	143,751,000
General and administrative		35,196,000	33,403,000	28,773,000
Transaction		1,003,000	5,885,000	6,538,000
Depreciation and amortization		279,630,000	244,986,000	176,866,000
Impairment		8,887,000	13,922,000	3,080,000
Total expenses		545,333,000	490,343,000	359,008,000
Interest income (expense):
Interest related to derivative financial instruments		694,000	(1,031,000)	(2,377,000)
Gain on change in fair value of derivative financial instruments, net		0	884,000	1,344,000
Total interest related to derivative financial instruments, including net change in fair value of derivative financial instruments		694,000	(147,000)	(1,033,000)
Interest related to debt		(102,543,000)	(85,344,000)	(59,769,000)
Gain on sale of real estate, net		165,977,000	37,802,000	8,966,000
Gain (loss) on extinguishment of debt, net		242,000	(11,192,000)	(3,025,000)
Income from unconsolidated joint venture		1,735,000	782,000	0
Other income		428,000	29,000	286,000
Net income		217,626,000	65,577,000	47,345,000
Net income attributable to noncontrolling interests	[1]	(4,163,000)	(1,661,000)	(1,433,000)
Net income (loss) attributable to common stockholders/unitholders		$ 213,463,000	$ 63,916,000	$ 45,912,000
Earnings per common share/unit - basic:
Net income attributable to common stockholders/unitholders (in dollars per share)		$ 1.04	$ 0.35	$ 0.34
Earnings per common share/unit - diluted:
Net income attributable to common stockholders/unitholders (in dollars per share)		$ 1.02	$ 0.34	$ 0.33
Weighted average common shares/units outstanding:
Basic (in shares/units)		206,065	181,064	136,620
Diluted (in shares/units)		210,061	185,278	140,259
Healthcare Trust of America Holdings, LP (HTALP)
Revenues:
Rental income		$ 696,030,000	$ 612,556,000	$ 460,563,000
Interest and other operating income		396,000	1,434,000	365,000
Total revenues		696,426,000	613,990,000	460,928,000
Expenses:
Rental		220,617,000	192,147,000	143,751,000
General and administrative		35,196,000	33,403,000	28,773,000
Transaction		1,003,000	5,885,000	6,538,000
Depreciation and amortization		279,630,000	244,986,000	176,866,000
Impairment		8,887,000	13,922,000	3,080,000
Total expenses		545,333,000	490,343,000	359,008,000
Interest income (expense):
Interest related to derivative financial instruments		694,000	(1,031,000)	(2,377,000)
Gain on change in fair value of derivative financial instruments, net		0	884,000	1,344,000
Total interest related to derivative financial instruments, including net change in fair value of derivative financial instruments		694,000	(147,000)	(1,033,000)
Interest related to debt		(102,543,000)	(85,344,000)	(59,769,000)
Gain on sale of real estate, net		165,977,000	37,802,000	8,966,000
Gain (loss) on extinguishment of debt, net		242,000	(11,192,000)	(3,025,000)
Income from unconsolidated joint venture		1,735,000	782,000	0
Other income		428,000	29,000	286,000
Net income		217,626,000	65,577,000	47,345,000
Net income attributable to noncontrolling interests		(89,000)	(123,000)	(118,000)
Net income (loss) attributable to common stockholders/unitholders		$ 217,537,000	$ 65,454,000	$ 47,227,000
Earnings per common share/unit - basic:
Net income attributable to common stockholders/unitholders (in dollars per share)		$ 1.04	$ 0.35	$ 0.34
Earnings per common share/unit - diluted:
Net income attributable to common stockholders/unitholders (in dollars per share)		$ 1.04	$ 0.35	$ 0.34
Weighted average common shares/units outstanding:
Basic (in shares/units)		210,061	185,261	140,259
Diluted (in shares/units)		210,061	185,278	140,259

[1] Includes amounts attributable to redeemable noncontrolling interests.