DEBT - Unsecured Revolving Credit Facility and Term Loan Narrative (Details) £ in Millions								12 Months Ended
	Jul. 31, 2025 GBP (£)	Jul. 08, 2025 GBP (£)	Sep. 19, 2024 USD ($)	Jul. 30, 2024 USD ($)	Jun. 03, 2024 USD ($)	Feb. 09, 2019 extension_option	Feb. 08, 2019 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	May 30, 2025 USD ($)	May 08, 2025 USD ($)	Dec. 18, 2024 USD ($)
Line of Credit Facility [Line Items]
Payments on senior unsecured term loan								$ 0	$ 200,000,000	$ 0
Loss on extinguishment of debt								390,000	657,000	0
Senior unsecured term loan, net								496,404,000	0
Participating mortgage loans, amount					$ 75,000,000
Payment on secured borrowing								0	75,000,000	$ 0
Secured revolving credit facility												$ 154,000,000
Senior unsecured notes payable, net								$ 397,816,000	396,927,000
Weighted average interest rate of debt								4.29%
Secured Borrowings
Line of Credit Facility [Line Items]
Loss on extinguishment of debt				$ 400,000
Principal amount					$ 165,000,000
Payment on secured borrowing				75,000,000
Prepayment penalty				$ 400,000
Secured Borrowings | SOFR
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)					2.25%
Secured Borrowings | Secured Overnight Financing Rate (SOFR) Floor
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)					3.00%
Secured Borrowings | Maximum
Line of Credit Facility [Line Items]
Exit fee (as percent)					0.0050
Secured Borrowings | Maximum | SOFR
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)					2.50%
Unsecured revolving credit facility
Line of Credit Facility [Line Items]
Number of extension options | extension_option						2
Extension option term (in months)						6 months
Unsecured revolving credit facility | Minimum
Line of Credit Facility [Line Items]
Facility fee on revolving commitment fees (as a percent)							0.15%
Facility fee on revolving commitment fee based on investment grade ratings (as a percent)							0.125%
Unsecured revolving credit facility | Maximum
Line of Credit Facility [Line Items]
Facility fee on revolving commitment fees (as a percent)							0.35%
Facility fee on revolving commitment fee based on investment grade ratings (as a percent)							0.30%
Unsecured revolving credit facility | Operating Partnership
Line of Credit Facility [Line Items]
Credit facility borrowing capacity							$ 600,000,000						$ 1,200,000,000
Unsecured revolving credit facility | Operating Partnership | Minimum | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)							0.05%
Unsecured revolving credit facility | Operating Partnership | Minimum | SOFR
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)							1.05%
Unsecured revolving credit facility | Operating Partnership | Maximum | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)							0.55%
Unsecured revolving credit facility | Operating Partnership | Maximum | SOFR
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)							1.55%
Unsecured revolving credit facility | Operating Partnership | Third Amended Revolving Facility
Line of Credit Facility [Line Items]
Borrowings outstanding								$ 0
Unsecured revolving credit facility | Operating Partnership | Term Loan
Line of Credit Facility [Line Items]
Senior unsecured term loan, net								$ 500,000,000
Letter of Credit | Operating Partnership
Line of Credit Facility [Line Items]
Subfacility capacity as percentage of available revolving commitments (as a percent)							10.00%
Swingline Loan | Operating Partnership
Line of Credit Facility [Line Items]
Subfacility capacity as percentage of available revolving commitments (as a percent)							10.00%
Term Loan | Senior unsecured term loan
Line of Credit Facility [Line Items]
Payments on senior unsecured term loan			$ 200,000,000
Loss on extinguishment of debt									$ 300,000
Term Loan | Senior unsecured term loan | Minimum | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)							0.10%
Term Loan | Senior unsecured term loan | Maximum | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)							0.80%
Term Loan | Operating Partnership | Third Amended Revolving Facility
Line of Credit Facility [Line Items]
Debt instrument face amount											$ 500,000,000
Term Loan | Operating Partnership | Senior unsecured term loan
Line of Credit Facility [Line Items]
Debt instrument face amount							$ 200,000,000
Term Loan | Operating Partnership | Senior unsecured term loan | Minimum | SOFR
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)							1.10%
Term Loan | Operating Partnership | Senior unsecured term loan | Maximum | SOFR
Line of Credit Facility [Line Items]
Basis spread on variable rate (as a percent)							1.80%
Secured Debt
Line of Credit Facility [Line Items]
Senior unsecured notes payable, net												$ 99,800,000
Notes Payable, Other Payables | Secured Debt
Line of Credit Facility [Line Items]
Redemption price | £		£ 75.5
Extinguishment of debt | £		75.0
Payments for accrued and unpaid interest | £		£ 0.5
Line of Credit | Unsecured revolving credit facility
Line of Credit Facility [Line Items]
Redemption price | £	£ 116.5
Extinguishment of debt | £	115.8
Payments for accrued and unpaid interest | £	0.4
Prepayment penalty | £	£ 0.3