LEASES - Schedule of lease balances within our condensed consolidated balance sheet (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Leases [Abstract]
Right to use assets, operating lease assets	$ 36,155	$ 12,088
Current lease liability	6,205	3,001
Non-current lease liability	31,355	9,479
Total	$ 37,560	$ 12,480