Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net income	$ 33,557	$ 45,994	$ 24,684
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other	151,614	137,188	119,904
Share-based compensation expense	5,724	4,383	5,648
Bad debt expense	828	312	453
Gain on sales of real estate, net	(152)	(27,894)	0
Impairment	2,581	0	0
(Gain) loss on extinguishment of debt, net	(123)	4,663	0
Change in fair value of derivative financial instruments	769	2,870	(10,796)
Changes in operating assets and liabilities:
Receivables and other assets, net	(7,508)	(9,252)	(15,931)
Accounts payable and accrued liabilities	(6,284)	12,262	14,789
Security deposits, prepaid rent and other liabilities	10,089	(2,027)	9,073
Net cash provided by operating activities	191,095	168,499	147,824
Cash flows from investing activities:
Investments in real estate	(279,334)	(307,271)	(340,307)
Acquisition of note receivable	0	(11,924)	0
Proceeds from sales of real estate	34,629	78,854	0
Capital expenditures	(29,270)	(29,037)	(25,382)
Collection of real estate notes receivable	0	28,520	0
Issuance of real estate notes receivable	0	0	(8,520)
Restricted cash, escrow deposits and other assets	4,711	(18,844)	(491)
Net cash used in investing activities	(269,264)	(259,702)	(374,700)
Cash flows from financing activities:
Proceeds from unsecured senior notes	0	297,615	297,558
Borrowings on unsecured revolving credit facility	454,000	294,000	158,000
Payments on unsecured revolving credit facility	(272,000)	(313,000)	(175,000)
Borrowings on unsecured term loans	100,000	0	0
Payments on unsecured term loans	0	(100,000)	0
Payments on secured real estate term loan and mortgage loans	(94,856)	(92,236)	(156,963)
Deferred financing costs	(204)	(12,112)	(3,651)
Derivative financial instrument termination payments	0	(1,675)	(1,195)
Security deposits	(243)	(1,025)	1,225
Proceeds from issuance of common stock, net	44,324	152,014	240,657
Repurchase and cancellation of common stock	(1,667)	(1,056)	(522)
Dividends	(146,372)	(137,158)	(129,360)
Payment on earnout liability	0	0	(92)
Distributions to noncontrolling interest of limited partners	(2,156)	(1,832)	(1,656)
Net cash provided by financing activities	80,826	83,535	229,001
Net change in cash and cash equivalents	2,657	(7,668)	2,125
Cash and cash equivalents - beginning of year	10,413	18,081	15,956
Cash and cash equivalents - end of year	13,070	10,413	18,081
Healthcare Trust of America Holdings, LP (HTALP)
Cash flows from operating activities:
Net income	33,557	45,994	24,684
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and other	151,614	137,188	119,904
Share-based compensation expense	5,724	4,383	5,648
Bad debt expense	828	312	453
Gain on sales of real estate, net	(152)	(27,894)	0
Impairment	2,581	0	0
(Gain) loss on extinguishment of debt, net	(123)	4,663	0
Change in fair value of derivative financial instruments	769	2,870	(10,796)
Changes in operating assets and liabilities:
Receivables and other assets, net	(7,508)	(9,252)	(15,931)
Accounts payable and accrued liabilities	(6,284)	12,262	14,789
Security deposits, prepaid rent and other liabilities	10,089	(2,027)	9,073
Net cash provided by operating activities	191,095	168,499	147,824
Cash flows from investing activities:
Investments in real estate	(279,334)	(307,271)	(340,307)
Acquisition of note receivable	0	(11,924)	0
Proceeds from sales of real estate	34,629	78,854	0
Capital expenditures	(29,270)	(29,037)	(25,382)
Collection of real estate notes receivable	0	28,520	0
Issuance of real estate notes receivable	0	0	(8,520)
Restricted cash, escrow deposits and other assets	4,711	(18,844)	(491)
Net cash used in investing activities	(269,264)	(259,702)	(374,700)
Cash flows from financing activities:
Proceeds from unsecured senior notes	0	297,615	297,558
Borrowings on unsecured revolving credit facility	454,000	294,000	158,000
Payments on unsecured revolving credit facility	(272,000)	(313,000)	(175,000)
Borrowings on unsecured term loans	100,000	0	0
Payments on unsecured term loans	0	(100,000)	0
Payments on secured real estate term loan and mortgage loans	(94,856)	(92,236)	(156,963)
Deferred financing costs	(204)	(12,112)	(3,651)
Derivative financial instrument termination payments	0	(1,675)	(1,195)
Security deposits	(243)	(1,025)	1,225
Proceeds from issuance of general partner units, net	44,324	152,014	240,657
Repurchase and cancellation of general partner units	(1,667)	(1,056)	(522)
Distributions to general partner	(146,372)	(137,158)	(129,360)
Payment on earnout liability	0	0	(92)
Distributions to limited partners and redeemable noncontrolling interests	(2,156)	(1,832)	(1,656)
Net cash provided by financing activities	80,826	83,535	229,001
Net change in cash and cash equivalents	2,657	(7,668)	2,125
Cash and cash equivalents - beginning of year	10,413	18,081	15,956
Cash and cash equivalents - end of year	$ 13,070	$ 10,413	$ 18,081