Earnings Per Common Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Numerator
Net income (loss)	$ (42,308)	$ 102,926	$ 12,702	$ 239,091
Noncontrolling interests' share in earnings	(3,555)	(3,555)	(10,692)	(9,546)
Net income (loss) attributable to Healthpeak Properties, Inc.	(45,863)	99,371	2,010	229,545
Less: Participating securities' share in earnings	(386)	(425)	(1,223)	(1,278)
Net income (loss) applicable to common shares	$ (46,249)	$ 98,946	$ 787	$ 228,267
Denominator
Basic weighted average shares outstanding (in shares)	491,203	469,867	482,595	469,732
Dilutive potential common shares - equity awards (in shares)	0	251	296	144
Dilutive potential common shares - forward equity agreements (in shares)	0	0	1,901	0
Diluted weighted average common shares (in shares)	491,203	470,118	484,792	469,876
Basic earnings per common share
Earnings per common share, basic (in dollars per share)	$ (0.09)	$ 0.21	$ 0.00	$ 0.49
Earnings per common share, diluted (in dollars per share)	$ (0.09)	$ 0.21	$ 0.00	$ 0.49
Forward sales agreements that have not been settled (in shares)			19,000
Forward equity sales agreements that have not been settled			$ 572,000