Earnings Per Common Share - Computation of EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator
Income (loss) from continuing operations	$ 28,943	$ 61,305	$ 168,065	$ (120,585)	$ (19,204)	$ (27,762)	$ 60,341	$ 147,132	$ 137,728	$ 160,507	$ 175,469
Noncontrolling interests' share in continuing operations									(17,851)	(14,394)	(14,558)
Income (loss) from continuing operations attributable to Healthpeak Properties, Inc.									119,877	146,113	160,911
Less: Participating securities' share in continuing operations									(3,269)	(2,416)	(1,543)
Income (loss) from continuing operations applicable to common shares									116,608	143,697	159,368
Income (loss) from discontinued operations	$ 3,633	$ 601	$ 113,960	$ 270,008	$ 169,449	$ (31,819)	$ (5,292)	$ 135,408	388,202	267,746	(115,408)
Noncontrolling interests' share in discontinued operations									(2,539)	(296)	27
Net income (loss) applicable to common shares									$ 502,271	$ 411,147	$ 43,987
Denominator
Basic weighted average shares outstanding (in shares)									538,930	530,555	486,255
Dilutive potential common shares - equity awards (in shares)									310	300	309
Dilutive potential common shares - forward equity agreements (in shares)									1	201	2,771
Diluted weighted average common shares (in shares)									539,241	531,056	489,335
Basic earnings (loss) per common share:
Continuing operations (in dollars per share)	$ 0.05	$ 0.10	$ 0.30	$ (0.23)	$ (0.04)	$ (0.06)	$ 0.10	$ 0.28	$ 0.22	$ 0.27	$ 0.33
Discontinued operations (in dollars per share)	0.00	0.00	0.21	0.50	0.31	(0.06)	(0.01)	0.27	0.71	0.50	(0.24)
Net income (loss) applicable to common shares (in dollars per share)									0.93	0.77	0.09
Diluted earnings (loss) per common share:
Continuing operations (in dollars per share)	0.05	0.10	0.30	(0.23)	(0.04)	(0.06)	0.10	0.28	0.22	0.27	0.33
Discontinued operations (in dollars per share)	$ 0.00	$ 0.00	$ 0.21	$ 0.50	$ 0.31	$ (0.06)	$ (0.01)	$ 0.26	0.71	0.50	(0.24)
Net income (loss) applicable to common shares (in dollars per share)									$ 0.93	$ 0.77	$ 0.09
Outstanding equity awards (in shares)									1,000
Forward sales agreements that have not been settled (in shares)									9,000		30,000
Forward sales agreements that have been settled (in shares)										32,000	21,000