INVESTMENT IN EQUITY SECURITIES - Schedule of Investments (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Total equity method investments and other investments	$ 62,343	$ 50,087
BTY
Schedule of Equity Method Investments [Line Items]
Equity method investments	32,884	33,020
Sonmol
Schedule of Equity Method Investments [Line Items]
Equity method investments	5,819	5,598
Kali Care
Schedule of Equity Method Investments [Line Items]
Equity method investments	420	535
Desotec GmbH
Schedule of Equity Method Investments [Line Items]
Equity method investments	921	964
PureCycle
Schedule of Equity Method Investments [Line Items]
Other investments	11,908	5,397
YAT
Schedule of Equity Method Investments [Line Items]
Other investments	5,895	0
Loop
Schedule of Equity Method Investments [Line Items]
Other investments	2,894	2,894
Others
Schedule of Equity Method Investments [Line Items]
Other investments	$ 1,602	$ 1,679