SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash, Cash equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Restricted security deposit	$ 5,450
Cash and cash equivalents	543,484	$ 231,731	$ 92,360
Restricted cash	6,430	6,430	6,084
Total cash, cash equivalents and restricted cash	549,914	$ 238,161	$ 98,444	$ 84,313
Commercial manufacturing facility
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Security deposit	5,450
Decrease in letters of credit	1,000
Commercial manufacturing facility | Minimum
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Security deposit	1,500
Headquarters lease
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Security deposit	$ 600