OTHER NONCURRENT ASSETS - Components of other noncurrent assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
OTHER NONCURRENT ASSETS
Right-of-use asset	$ 17,794	$ 1,810
Long-term deposits	390	69
Other investments	6,750	3,000
Other	546
Total other noncurrent assets	$ 25,480	$ 4,879