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DISPOSITIONS AND IMPAIRMENTS - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Oct. 28, 2026 USD ($) property	Sep. 30, 2026 USD ($) property	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($) property	Sep. 30, 2025 USD ($)
Disposal Group, Including Discontinued Operations [Line Items]
Number of real estate properties \| property		1,454		1,454
Proceeds from real estate disposals				$ 66,818	$ 158,769
Gain on real estate dispositions		$ 815	$ 1,283	16,037	35,268
Income Statement Location [Axis]: us-gaap:DepreciationAndAmortization
Disposal Group, Including Discontinued Operations [Line Items]
Impairment of real estate		49,700	28,300	110,000	85,400
SHOP \| Income Statement Location [Axis]: us-gaap:DepreciationAndAmortization
Disposal Group, Including Discontinued Operations [Line Items]
Impairment of real estate		44,000	700	74,700	26,700
OM&R \| Income Statement Location [Axis]: us-gaap:DepreciationAndAmortization
Disposal Group, Including Discontinued Operations [Line Items]
Impairment of real estate		5,500	24,300	31,000	55,400
NNN \| Income Statement Location [Axis]: us-gaap:DepreciationAndAmortization
Disposal Group, Including Discontinued Operations [Line Items]
Impairment of real estate		$ 200	$ 3,200	4,300	$ 3,300
Dispositions
Disposal Group, Including Discontinued Operations [Line Items]
Proceeds from real estate disposals				66,800
Gain on real estate dispositions				$ 16,000
Dispositions \| Subsequent Event
Disposal Group, Including Discontinued Operations [Line Items]
Proceeds from real estate disposals	$ 135,800
Gain on real estate dispositions	$ 77,400
Dispositions \| SHOP
Disposal Group, Including Discontinued Operations [Line Items]
Number of real estate properties \| property		6		6
Dispositions \| SHOP \| Subsequent Event
Disposal Group, Including Discontinued Operations [Line Items]
Number of real estate properties \| property	1
Dispositions \| OM&R
Disposal Group, Including Discontinued Operations [Line Items]
Number of real estate properties \| property		2		2
Dispositions \| OM&R \| Subsequent Event
Disposal Group, Including Discontinued Operations [Line Items]
Number of real estate properties \| property	7
Dispositions \| NNN
Disposal Group, Including Discontinued Operations [Line Items]
Number of real estate properties \| property		11		11