REDEEMABLE PREFERRED STOCK - Series A1 and Series A Preferred Stock Narrative (Details) - USD ($)	3 Months Ended		22 Months Ended	90 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2024	Mar. 31, 2024	Dec. 31, 2023	Jan. 31, 2020
Class of Stock [Line Items]
Non-issuance offering costs for preferred stock and warrants	$ 10,900,000
Warrant right to purchase a share of common stock (in shares)						0.25
Net proceeds from issuance of preferred stock	19,549,000	$ 23,644,000
Reclassification of Series A Preferred Stock from temporary equity to permanent equity	0	8,812,000
Series A Preferred Warrants
Class of Stock [Line Items]
Gross proceeds from issuance of preferred stock and warrants	761,000
Issuance offering costs for preferred stock and warrants	142,000
Reclassification to deferred rent receivable and charges	$ 5,000
Number of warrants included in preferred stock unit (in shares)						1
Warrants issued (in shares)	4,603,287		4,603,287	4,603,287
Series A1 Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (in usd per share)	$ 0.001		$ 0.001	$ 0.001	$ 0.001
Preferred stock, liquidation preference per share (in usd per share)	$ 25.00		$ 25.00	$ 25.00	$ 25.00
Preferred stock, shares issued (in shares)	11,327,248		11,327,248	11,327,248	10,473,369
Gross proceeds from issuance of preferred stock and warrants	$ 275,500,000
Issuance offering costs for preferred stock and warrants	20,300,000
Reclassification to deferred rent receivable and charges	$ 4,000,000
Preferred stock, shares outstanding (in shares)	11,208,176		11,208,176	11,208,176	10,378,343
Redemption of Preferred Stock (in shares)			119,072
Series A1 Preferred Stock | Preferred Stock, Shares Issued, One
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)	11,127,248		11,127,248	11,127,248
Series A1 Preferred Stock | Preferred Stock, Shares Issued, Two
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)	200,000		200,000	200,000
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, par value (in usd per share)	$ 0.001		$ 0.001	$ 0.001	$ 0.001
Preferred stock, liquidation preference per share (in usd per share)	$ 25.00		$ 25.00	$ 25.00	$ 25.00
Preferred stock, shares issued (in shares)	8,820,338		8,820,338	8,820,338	8,820,338
Gross proceeds from issuance of preferred stock and warrants	$ 205,400,000
Issuance offering costs for preferred stock and warrants	17,000,000
Reclassification to deferred rent receivable and charges	$ 1,900,000
Preferred stock, shares outstanding (in shares)	7,042,333		7,042,333	7,042,333	7,431,839
Redeemable preferred stock deemed dividends	$ 0	0
Reclassification of Series A Preferred Stock from temporary equity to permanent equity		$ 8,812,000		$ 199,600,000
Series A Preferred Stock | Preferred Stock, Shares Issued, One
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)	8,251,657		8,251,657	8,251,657
Series A Preferred Stock | Preferred Stock, Shares Issued, Two
Class of Stock [Line Items]
Preferred stock, shares issued (in shares)	568,681		568,681	568,681
Net proceeds from issuance of preferred stock	$ 0
Series A Preferred Stock
Class of Stock [Line Items]
Preferred stock, shares outstanding (in shares)	7,042,333		7,042,333	7,042,333
Preferred stock, shares redeemed (in shares)	1,778,005