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INVESTMENTS IN UNCONSOLIDATED ENTITIES (Details) $ in Thousands	1 Months Ended	3 Months Ended
	Apr. 28, 2026 USD ($) property	Mar. 31, 2026 USD ($) property boardMember	Mar. 31, 2025 USD ($)	Dec. 31, 2025 USD ($)
Equity method investments
Total Investments in unconsolidated real estate entities		$ 611,285		$ 617,571
Ownership percentage, threshold (may have less than)		100.00%
Number of real estate properties sold \| property		1,390
Proceeds from real estate disposals		$ 47,055	$ 13,250
Ventas Fund
Equity method investments
Value of assets acquired		$ 62,800
Ventas Fund \| Subsequent Event
Equity method investments
Value of assets acquired	$ 46,500
Senior Housing Communities \| Pension Fund Joint Venture
Equity method investments
Number of real estate properties sold \| property		1
Proceeds from real estate disposals		$ 37,800
Senior Housing Community \| Ventas Fund
Equity method investments
Number of real estate properties acquired \| property		1
Senior Housing Community \| Ventas Fund \| Subsequent Event
Equity method investments
Number of real estate properties acquired \| property	1
Management Service
Equity method investments
Management fees		$ 3,800	$ 3,900
Atria
Equity method investments
Ownership percentage		34.00%
Number of board members appointed \| boardMember		2
Ardent
Equity method investments
Ownership percentage		6.60%
Equity method investment, total voting power		4.00%
Number of board members nominated \| boardMember		1
Unconsolidated Properties \| Ventas Fund
Equity method investments
Total Investments in unconsolidated real estate entities		$ 290,126		$ 288,469
Ownership percentage		20.20%		20.10%
Unconsolidated Properties \| Pension Fund Joint Venture
Equity method investments
Total Investments in unconsolidated real estate entities		$ 5,748		$ 6,200
Ownership percentage		25.00%		25.00%
Unconsolidated Properties \| Research & Innovation Development Joint Venture
Equity method investments
Total Investments in unconsolidated real estate entities		$ 275,897		$ 282,512
Ownership percentage		53.00%		53.00%
Unconsolidated Properties \| Ventas Investment Management platform
Equity method investments
Total Investments in unconsolidated real estate entities		$ 571,771		$ 577,181
Unconsolidated Properties \| Atrium Health And Wake Forest Joint Venture
Equity method investments
Total Investments in unconsolidated real estate entities		$ 38,939		$ 39,809
Ownership percentage		51.00%		51.00%
Unconsolidated Properties \| All other
Equity method investments
Total Investments in unconsolidated real estate entities		$ 575		$ 581
Unconsolidated Properties \| All other \| Minimum
Equity method investments
Ownership percentage		34.00%		34.00%
Unconsolidated Properties \| All other \| Maximum
Equity method investments
Ownership percentage		37.50%		37.50%