RESTATEMENT OF PREVIOUSLY ISSUED FINANCIAL STATEMENTS - Impact of Restatement Adjustments on Consolidated Cash Flows Statements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income	$ 7,930	$ 2,365	$ 8,089	$ 8,355
Changes in operating assets and liabilities:
Net change in operating assets and liabilities			(7,201)	38,084
Net cash provided by operating activities			$ 16,206	61,764
As Previously Reported
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income		2,080		7,728
Changes in operating assets and liabilities:
Net change in operating assets and liabilities				38,711
Net cash provided by operating activities				61,764
Adjustments
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income		$ 285		627
Changes in operating assets and liabilities:
Net change in operating assets and liabilities				(627)
Net cash provided by operating activities