Earnings Per Share - Narrative (Details) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jul. 26, 2020
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Weighted average shares outstanding - basic (in shares)	225,209	190,463	184,975
Ventas, Inc | The Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares authorized to be purchased				16,300
Common stock, par value (in dollars per share)				$ 0.01
Share price (in usd per share)				$ 3.00
Convertible Senior Notes Due 2026
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares issuable upon conversion (in shares)	38,300
Incremental shares issuable under purchase contracts
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares issuable upon conversion (in shares)	43,700
Weighted average shares outstanding - basic (in shares)	37,200	37,200