The expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition

Amount of expense incurred and directly related to generating revenue from leased and rented property or equipment.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The number of limited partner units issued.

+ References

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The number of limited partner units outstanding.

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Summary of Significant Accounting Policies (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Partners' Capital Notes [Abstract]
Rental expense	$ 39,020	$ 33,353
Building and Building Improvements
Partners' Capital Notes [Abstract]
Depreciation expense	$ 32,700	25,700
Ground Lease
Partners' Capital Notes [Abstract]
Rental expense			$ 7,600
Finite-lived intangible asset (in years)			48 years 2 months 12 days
Healthcare Trust of America Holdings, LP (HTALP)
Partners' Capital Notes [Abstract]
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
Rental expense	$ 39,020	$ 33,353