DEBT - Fair Value of Fixed-Rate Debt not Recorded at Fair Value (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Carrying Value
Debt
Debt	$ 391,390	$ 442,858
Carrying Value | Level 1 | Convertible notes
Debt
Debt	287,500	287,500
Carrying Value | Level 2 | Mortgage loans
Debt
Debt	103,890	155,358
Fair Value
Debt
Debt	333,092	456,149
Fair Value | Level 1 | Convertible notes
Debt
Debt	241,616	300,384
Fair Value | Level 2 | Mortgage loans
Debt
Debt	$ 91,476	$ 155,765