ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Leases (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)
Leases
Operating Lease Cost (Cost resulting from lease payments)	$ 12,673
Variable Lease Cost (Cost excluded from lease payments)	160
Total Lease Cost	12,833
Operating Lease - Operating Cash Flows (Fixed Payments)	13,023
Operating Lease - Operating Cash Flows (Liability Reduction)	$ 7,752
Weighted Average Lease Term - Operating Leases	5 years 7 months 17 days
Weighted Average Discount Rate - Operating Leases	11.00%