Earnings Per Common Share - Computation of EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator
Income (loss) from continuing operations	$ 168,065	$ 60,341	$ 47,480	$ 207,473
Noncontrolling interests' share in continuing operations	(3,535)	(3,486)	(6,841)	(6,949)
Income (loss) from continuing operations attributable to Healthpeak Properties, Inc.	164,530	56,855	40,639	200,524
Less: Participating securities' share in continuing operations	(287)	(375)	(2,732)	(1,800)
Income (loss) from continuing operations applicable to common shares	164,243	56,480	37,907	198,724
Income (loss) from discontinued operations	113,960	(5,292)	383,968	130,116
Noncontrolling interests' share in discontinued operations	(2,210)	(57)	(2,539)	(54)
Net income (loss) applicable to common shares	275,993	51,131	419,336	328,786
Add: distributions on dilutive convertible units and other	1,540	0	0	0
Dilutive net income (loss) available to common shares	$ 277,533	$ 51,131	$ 419,336	$ 328,786
Denominator
Basic weighted average shares outstanding (in shares)	538,929,000	538,262,000	538,805,000	522,427,000
Dilutive potential common shares - equity awards (in shares)	264,000	255,000	276,000	263,000
Dilutive potential common shares - forward equity agreements (in shares)	0	0	0	808,000
Dilutive potential common shares - DownREIT conversions (in shares)	5,501,000	0	0	0
Diluted weighted average common shares (in shares)	544,694,000	538,517,000	539,081,000	523,498,000
Basic earnings (loss) per common share
Continuing operations (in dollars per share)	$ 0.30	$ 0.10	$ 0.07	$ 0.38
Discontinued operations (in dollars per share)	0.21	(0.01)	0.71	0.25
Net income (loss) applicable to common shares (in dollars per share)	0.51	0.09	0.78	0.63
Diluted earnings (loss) per common share
Continuing operations (in dollars per share)	0.30	0.10	0.07	0.38
Discontinued operations (in dollars per share)	0.21	(0.01)	0.71	0.25
Net income (loss) applicable to common shares (in dollars per share)	$ 0.51	$ 0.09	$ 0.78	$ 0.63
Outstanding equity awards (in shares)	1,000,000	1,000,000	1,000,000	1,000,000
Forward sales agreements that have been settled (in shares)	0	0	0	32,000,000