CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Cash flows from operating activities:
Net income	$ 10,016,000	$ 14,000,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other	68,303,000	46,213,000
Share-based compensation expense	3,507,000	2,530,000
Bad debt expense	3,000	103,000
Impairment	4,606,000	0
Income from unconsolidated joint venture	(570,000)	0
Gain on sale of real estate, net	0	(3,000)
Loss on extinguishment of debt, net	0	32,000
Change in fair value of derivative financial instruments	0	(839,000)
Changes in operating assets and liabilities:
Receivables and other assets, net	9,274,000	(7,771,000)
Accounts payable and accrued liabilities	(30,780,000)	(7,934,000)
Prepaid rent and other liabilities	(3,479,000)	682,000
Net cash provided by operating activities	60,880,000	47,013,000
Cash flows from investing activities:
Investments in real estate	(11,887,000)	(34,706,000)
Development of real estate	(13,235,000)	0
Proceeds from the sale of real estate	0	4,746,000
Capital expenditures	(17,417,000)	(12,894,000)
Collection of real estate notes receivable	172,000	0
Net cash used in investing activities	(42,367,000)	(42,854,000)
Cash flows from financing activities:
Borrowings on unsecured revolving credit facility	0	92,000,000
Payments on unsecured revolving credit facility	0	(10,000,000)
Payments on secured mortgage loans	(1,598,000)	(40,155,000)
Security deposits	52,000	14,000
Repurchase and cancellation of common stock	(2,709,000)	(3,118,000)
Dividends paid	(62,546,000)	(42,536,000)
Distributions paid to noncontrolling interest of limited partners	(1,334,000)	(1,332,000)
Net cash used in financing activities	(68,135,000)	(5,127,000)
Net change in cash, cash equivalents and restricted cash	(49,622,000)	(968,000)
Cash, cash equivalents and restricted cash - beginning of period	118,560,000	25,045,000
Cash, cash equivalents and restricted cash - end of period	68,938,000	24,077,000
Healthcare Trust of America Holdings, LP (HTALP)
Cash flows from operating activities:
Net income	10,016,000	14,000,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other	68,303,000	46,213,000
Share-based compensation expense	3,507,000	2,530,000
Bad debt expense	3,000	103,000
Impairment	4,606,000	0
Income from unconsolidated joint venture	(570,000)	0
Gain on sale of real estate, net	0	(3,000)
Loss on extinguishment of debt, net	0	32,000
Change in fair value of derivative financial instruments	0	(839,000)
Changes in operating assets and liabilities:
Receivables and other assets, net	9,274,000	(7,771,000)
Accounts payable and accrued liabilities	(30,780,000)	(7,934,000)
Prepaid rent and other liabilities	(3,479,000)	682,000
Net cash provided by operating activities	60,880,000	47,013,000
Cash flows from investing activities:
Investments in real estate	(11,887,000)	(34,706,000)
Development of real estate	(13,235,000)	0
Proceeds from the sale of real estate	0	4,746,000
Capital expenditures	(17,417,000)	(12,894,000)
Collection of real estate notes receivable	172,000	0
Net cash used in investing activities	(42,367,000)	(42,854,000)
Cash flows from financing activities:
Borrowings on unsecured revolving credit facility	0	92,000,000
Payments on unsecured revolving credit facility	0	(10,000,000)
Payments on secured mortgage loans	(1,598,000)	(40,155,000)
Security deposits	52,000	14,000
Repurchase and cancellation of general partner units	(2,709,000)	(3,118,000)
Distributions paid to general partner	(62,546,000)	(42,536,000)
Distributions paid to limited partners and redeemable noncontrolling interests	(1,334,000)	(1,332,000)
Net cash used in financing activities	(68,135,000)	(5,127,000)
Net change in cash, cash equivalents and restricted cash	(49,622,000)	(968,000)
Cash, cash equivalents and restricted cash - beginning of period	118,560,000	25,045,000
Cash, cash equivalents and restricted cash - end of period	$ 68,938,000	$ 24,077,000