Earnings Per Common Share - Computation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator
Net income (loss)	$ 60,061	$ 1,073,474	$ 422,634
Noncontrolling interests' share in earnings	(14,531)	(12,381)	(8,465)
Net income (loss) attributable to Healthpeak Properties, Inc.	45,530	1,061,093	414,169
Less: Participating securities' share in earnings	(1,543)	(2,669)	(1,156)
Net income (loss) applicable to common shares	43,987	1,058,424	413,013
Add: distributions on dilutive convertible units and other	0	6,919	0
Dilutive net income (loss) available to common shares	$ 43,987	$ 1,065,343	$ 413,013
Denominator
Basic weighted average shares outstanding (in shares)	486,255	470,551	468,759
Dilutive potential common shares - equity awards (in shares)	309	168	176
Weighted-average incremental shares from forward equity sales agreements (in shares)	2,771	0	0
Dilutive potential common shares - DownREIT conversions (in shares)	0	4,668	0
Diluted weighted average common shares (in shares)	489,335	475,387	468,935
Basic earnings per common share:
Continuing operations (in dollars per share)	$ 0.09	$ 2.25	$ 0.88
Diluted earnings per common share
Continuing operations (in dollars per share)	$ 0.09	$ 2.24	$ 0.88
Incremental common shares attributable to dilutive effect of equity forward agreements, not yet settled (in shares)	30,000
Dilutive securities, effect on basic earnings, dilutive convertible securities, not yet settled	$ 1,000,000