Selected Quarterly Financial Data (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract]
Total revenues	$ 431,697	$ 423,565	$ 408,559	$ 381,054	$ 318,920	$ 321,079	$ 307,037	$ 293,303	$ 1,644,875	$ 1,240,339	$ 1,191,320
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	(2,866)	13,957	78,182	128,410	149,329	(19,062)	25,708	20,345	217,683	176,320	838,577
Income (loss) from continuing operations	(19,204)	(27,762)	60,341	147,132	153,320	(24,420)	24,052	22,517	160,507	175,469	837,218
Income (loss) from discontinued operations	169,449	(31,819)	(5,292)	135,408	(105,961)	(17,888)	(34,032)	42,473	267,746	(115,408)	236,256
Net income (loss)	150,245	(59,581)	55,049	282,540	47,359	(42,308)	(9,980)	64,990	428,253	60,061	1,073,474
Net income (loss) applicable to Healthpeak Properties, Inc.	$ 146,394	$ (63,417)	$ 51,506	$ 279,080	$ 43,520	$ (45,863)	$ (13,597)	$ 61,470	$ 413,563	$ 45,530	$ 1,061,093
Dividends paid per common share (in dollars per share)	$ 0.37	$ 0.37	$ 0.37	$ 0.37	$ 0.37	$ 0.37	$ 0.37	$ 0.37
Basic earnings (loss) per common share:
Continuing operations (in dollars per share)	(0.04)	(0.06)	0.10	0.28	0.30	(0.06)	0.04	0.04	$ 0.27	$ 0.33	$ 1.75
Discontinued operations (in dollars per share)	0.31	(0.06)	(0.01)	0.27	(0.21)	(0.03)	(0.07)	0.09	0.50	(0.24)	0.50
Diluted earnings (loss) per common share:
Continuing operations (in dollars per share)	(0.04)	(0.06)	0.10	0.28	0.30	(0.06)	0.04	0.04	0.27	0.33	1.74
Discontinued operations (in dollars per share)	$ 0.31	$ (0.06)	$ (0.01)	$ 0.26	$ (0.21)	$ (0.03)	$ (0.07)	$ 0.09	$ 0.50	$ (0.24)	$ 0.50