INTANGIBLE ASSETS AND GOODWIL - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Intangibles impairment charge	$ 0		$ 31,700	$ 27,764	$ 31,700
Goodwill	0	$ 0		0		$ 13,064
IPR&D intangible assets:
Finite-Lived Intangible Assets [Line Items]
Total Intangibles	0			0		14,700
Vicinium | Europe | IPR&D intangible assets:
Finite-Lived Intangible Assets [Line Items]
Intangibles impairment charge		14,700
Total Intangibles	$ 0	$ 0	$ 0	$ 0	$ 0	$ 14,700