PROPERTY PORTFOLIO - Properties Acquired and Disposed (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($) property	Sep. 30, 2022 USD ($) property tenant	Sep. 30, 2023 USD ($) state property	Sep. 30, 2022 USD ($) state property tenant	Dec. 31, 2022 USD ($)
PROPERTY PORTFOLIO
Number of real estate properties | property	138		138
Acquired intangible liabilities for the below market lease	$ 5,184		$ 5,184		$ 5,050
Gain on Disposition of Assets	$ 2,586	$ 11,611	$ 7,782	$ 27,248
Disposal Group, Disposed of by Sale, Not Discontinued Operations
PROPERTY PORTFOLIO
Number of real estate properties disposed | property	22	11	22	11
Sales price			$ 99,600	$ 123,300
Gain on Disposition of Assets			$ 7,800	$ 27,200
Disposal Group, Held-for-sale, Not Discontinued Operations
PROPERTY PORTFOLIO
Number of properties held for sale | property	7		7
Single-tenant Net Lease Income Properties Acquired in 2023
PROPERTY PORTFOLIO
Number of real estate properties | property	12		12
Purchase price			$ 79,900
Acquired properties, cost	$ 81,200		$ 81,200
Number of states for leased asset | state			7
Initial cost of land	22,100		$ 22,100
Initial cost of building and improvements	53,000		53,000
Acquired in-place lease value, leasing fees, and above market lease value	8,000		8,000
Acquired intangible liabilities for the below market lease	$ 900		$ 900
Weighted average amortization period of intangible liabilities			9 years 7 months 6 days
Single-tenant Net Lease Income Properties Acquired in 2023 | Weighted Average
PROPERTY PORTFOLIO
Remaining lease term at acquisition			8 years 8 months 12 days
Single-tenant Net Lease Income Properties Acquired in 2022
PROPERTY PORTFOLIO
Number of real estate properties | property		44		44
Purchase price				$ 145,700
Acquired properties, cost		$ 147,000		$ 147,000
Number of states for leased asset | state				22
Number of tenant for leased property | tenant		17		17
Initial cost of land		$ 37,000		$ 37,000
Initial cost of building and improvements		94,100		94,100
Acquired in-place lease value, leasing fees, and above market lease value		17,600		17,600
Acquired intangible liabilities for the below market lease		$ 1,700		$ 1,700
Weighted average amortization period of intangible liabilities				9 years 2 months 12 days
Single-tenant Net Lease Income Properties Acquired in 2022 | Weighted Average
PROPERTY PORTFOLIO
Remaining lease term at acquisition				8 years 10 months 24 days