ACCOUNTS PAYABLE, ACCRUED EXPENSES AND OTHER LIABILITIES (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Payables and Accruals [Abstract]
Accrued compensation and benefits	$ 3,496	$ 6,161
Due to affiliate (Note 13)	7,224	7,212
Revenue share payable (Note 12)	7,292	2,316
Accrued interest	1,294	1,294
Professional fees	4,368	1,650
Deferred tax liabilities (Note 15)	813	623
Due to DB Med Investors, at fair value	0	1,750
Accounts payable and other accrued expenses	2,593	1,829
Total accounts payable, accrued expenses and other liabilities	$ 27,080	$ 22,835