Earnings Per Share - Narrative (Details) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2024 $ / shares shares	Mar. 31, 2023 shares	Dec. 31, 2022 USD ($) day $ / shares shares	Dec. 31, 2023 $ / shares	Oct. 01, 2021 USD ($)	Jul. 26, 2020 $ / shares shares
Class of Stock [Line Items]
Common stock, par value (in dollars per share) | $ / shares	$ 0.01			$ 0.01
Debt instrument, settlement, prepaid stock, minimum settlement rate (in shares)			12.9341
Debt instrument, settlement, prepaid stock, maximum settlement rate (in shares)			15.1976
Debt instrument, settlement, threshold consecutive trading days | day			20
Weighted average shares outstanding - basic (in shares)	225,890,000	224,578,000
Common Stock
Class of Stock [Line Items]
Shares issued for settlement of prepaid stock purchase contracts (in shares)	3,556,877
Stock Purchase Contracts
Class of Stock [Line Items]
Number of shares issuable upon conversion (in shares)	39,500,000
Number of shares issued (in shares)	2,600,000
Ventas, Inc | The Warrant
Class of Stock [Line Items]
Number of shares authorized to be purchased (in shares)						16,300,000
Common stock, par value (in dollars per share) | $ / shares						$ 0.01
Share price (in dollars per share) | $ / shares						$ 3.00
Convertible senior notes
Class of Stock [Line Items]
Number of shares issuable upon conversion (in shares)	38,300,000
Convertible senior notes | Convertible Debt
Class of Stock [Line Items]
Debt face amount | $					$ 230.0
Interest rate, stated percentage					2.00%
Tangible Equity Units Senior Amortizing Notes | Other notes payable
Class of Stock [Line Items]
Interest rate, stated percentage			7.00%
Number of shares issued (in shares)			2,875,000
Stated amount, per unit (in dollars per share) | $ / shares			$ 50.00
Aggregate offering | $			$ 143.8
Prepaid stock purchase contracts (in dollars per share) | $ / shares			$ 8.8996
Tangible Equity Units Senior Amortizing Notes Separate at Election of the Holders | Other notes payable
Class of Stock [Line Items]
Number of shares issued (in shares)	275,000