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SALES OF PROPERTIES, PROPERTIES HELD-FOR-SALE AND IMPAIRMENT LOSS (Details) - USD ($) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |
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Sep. 25, 2025 | Sep. 08, 2025 | Aug. 01, 2025 | Jul. 15, 2025 | Jun. 27, 2025 | Jun. 25, 2025 | Jun. 23, 2025 | Jan. 21, 2025 | Jan. 16, 2025 | Sep. 16, 2024 | Aug. 29, 2024 | Aug. 15, 2024 | Jun. 28, 2024 | Jun. 10, 2024 | Jun. 07, 2024 | Jun. 06, 2024 | May 09, 2024 | May 06, 2024 | Mar. 06, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2025 | Sep. 09, 2025
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,071,000 | $ 2,115,000 | $ 16,712,000 | $ 11,347,000 |  |
Impairment loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,300,000 |  | 1,300,000 | 1,086,000 |  |
Vacant health and fitness property in Hamilton, Ohio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,086,000 |  |
Retail property located in Port Clinton, Ohio | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated Gain on Sale of Real Estate Net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 200,000 |
The Vue Apartments, Beachwood, Ohio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,300,000 |  | 1,300,000 |  |  |
Properties disposed of by sale |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 49,461,000 | 39,445,000 |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,712,000 | 11,347,000 |  |
Mortgage prepaid on sale of real estate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,773,000 | 10,714,000 |  |
Reduction to Gain on sale of real estate, net, attributable to the write-off of unbilled rent receivable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,125,000 | 285,000 |  |
Reduction to Gain on sale of real estate, net, attributable to the write-off of net unamortized lease assets and liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 67,000 | 64,000 |  |
Reduction to Gain on sale of real estate, net, attributable to the write-off of other assets and receivables |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 703,000 | 108,000 |  |
Properties disposed of by sale | Land and improvements in Lakewood, Colorado |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  | $ 400,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  | (44,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-controlling interest's share of the gain |  |  |  |  |  |  |  |  | $ (4,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Hooters restaurant property in Concord, North Carolina |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  | $ 3,253,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  | $ 1,154,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Multi-tenant retail stores, Lakewood, Colorado |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  | $ 17,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  | 3,276,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Total Wine retail property, Greensboro, North Carolina |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  | $ 4,709,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  | $ 2,232,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | LaZBoy retail property, Gurnee, Illinois |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  | $ 4,368,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  | $ 1,023,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Land parcel in Lakewood, Colorado |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  | $ 3,457,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  | 2,849,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-controlling interest's share of the gain (loss) |  |  |  | $ 641,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Office Depot retail property, Eugene, Oregon |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  | $ 6,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  | $ 2,497,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Blue Pearl Veterinary Hospital, Newark, Delaware |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  | $ 6,774,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  | $ 3,236,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Vacant retail property, Bolingbrook, Illinois |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price | $ 2,600,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net | $ 489,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Hacienda Colorado restaurant parcel in Lakewood, Colorado |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,900,000 |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,784,000 |  |  |  |  |  |
Non-controlling interest's share of the gain |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 178,000 |  |  |  |  |  |
Properties disposed of by sale | Applebee's restaurant property in Kennesaw, Georgia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,834,000 |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 964,000 |  |  |  |  |  |  |
Properties disposed of by sale | FedEx industrial property in Miamisburg, Ohio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,793,000 |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,507,000 |  |  |  |  |  |  |  |
Properties disposed of by sale | Havertys retail property in Wichita, Kansas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6,600,000 |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,884,000 |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Urban Outfitters retail property in Lawrence, Kansas |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,300,000 |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 43,000 |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Walgreens retail property in Cape Girardeau, Missouri |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,793,000 |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  |  |  |  | 978,000 |  |  |  |  |  |  |  |  |  |  |
Non-controlling interest's share of the gain |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 105,000 |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Vacant retail property in Kennesaw, Georgia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  |  |  |  | $ 6,700,000 |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,072,000 |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Vacant health and fitness property in Hamilton, Ohio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  |  |  | $ 4,350,000 |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  |  | $ 17,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,086,000 |  |
Properties disposed of by sale | Vacant industrial property in Wauconda, Illinois |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  |  | $ 4,425,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  |  | $ 1,177,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties disposed of by sale | Hobby Lobby retail property in Woodbury, Minnesota |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gross Sales Price |  |  |  |  |  |  |  |  |  | $ 4,750,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
(Loss) Gain on Sale of Real Estate, Net |  |  |  |  |  |  |  |  |  | $ 921,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Properties held-for-sale | Retail property located in Port Clinton, Ohio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contracted sale price of property |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,330,000
Net book value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,029,000 |  | 1,029,000 |  |  |
Properties held-for-sale | The Vue Apartments, Beachwood, Ohio |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net book value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16,200,000 |  | 16,200,000 |  |  |
Impairment loss |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,300,000 |  | $ 1,300,000 |  |  |
Colorado JV | Multi-tenant retail stores, Lakewood, Colorado |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-controlling interest's share of the gain (loss) |  |  |  |  |  |  | $ 972,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Colorado JV | Properties disposed of by sale | Land and improvements in Lakewood, Colorado |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest in consolidated joint venture of the company (as a percent) |  |  |  |  |  |  |  |  | 90.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consolidated VIE 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest in consolidated joint venture of the company (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 95.00% |  |  |
Consolidated VIE 2 | Properties disposed of by sale | Walgreens retail property in Cape Girardeau, Missouri |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
SALES OF PROPERTIES AND IMPAIRMENT LOSS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest in consolidated joint venture of the company (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  | 95.00% |  |  |  |  |  |  |  |  |  |  |

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