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DISPOSITIONS AND IMPAIRMENTS - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Jun. 30, 2025 USD ($) property	Jun. 30, 2026 USD ($) property	Jun. 30, 2025 USD ($) property	Jun. 30, 2026 USD ($) property	Jun. 30, 2025 USD ($) property
Disposal Group, Including Discontinued Operations [Line Items]
Number of real estate properties \| property		1,420		1,420
Proceeds from real estate disposals				$ 52,574	$ 149,014
Gain on real estate dispositions		$ 176	$ 33,816	15,222	33,985
Income Statement Location [Axis]: us-gaap:DepreciationAndAmortization
Disposal Group, Including Discontinued Operations [Line Items]
Impairment of real estate		32,000	34,900	60,300	57,200
SHOP \| Income Statement Location [Axis]: us-gaap:DepreciationAndAmortization
Disposal Group, Including Discontinued Operations [Line Items]
Impairment of real estate		28,300	18,400	30,700	26,000
OM&R \| Income Statement Location [Axis]: us-gaap:DepreciationAndAmortization
Disposal Group, Including Discontinued Operations [Line Items]
Impairment of real estate		3,300	$ 16,500	25,500	31,100
NNN \| Income Statement Location [Axis]: us-gaap:DepreciationAndAmortization
Disposal Group, Including Discontinued Operations [Line Items]
Impairment of real estate		$ 400		4,100	$ 100
Dispositions
Disposal Group, Including Discontinued Operations [Line Items]
Proceeds from real estate disposals				52,600
Gain on real estate dispositions				$ 15,200
Dispositions \| SHOP
Disposal Group, Including Discontinued Operations [Line Items]
Number of real estate properties \| property		3		3
Dispositions \| OM&R
Disposal Group, Including Discontinued Operations [Line Items]
Number of real estate properties \| property	12	2	12	2	12
Gain on real estate dispositions	$ 20,800
Sales-type lease receivable	$ 38,500		$ 38,500		$ 38,500
Dispositions \| NNN
Disposal Group, Including Discontinued Operations [Line Items]
Number of real estate properties \| property		10		10