EQUITY METHOD INVESTMENTS - Summary of Equity Method Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Schedule of Equity Method Investments [Line Items]
Income from equity method investments	$ 5,296
Distributions received from equity method investments	(3,856)
Total Equity method investments	97,930	$ 0
Manufacturing JV
Schedule of Equity Method Investments [Line Items]
Equity method investment, underlying equity in net assets	75,434
Manufacturing JV capital contribution
Schedule of Equity Method Investments [Line Items]
Equity method investment, underlying equity in net assets	10,714
HK JV and China JV
Schedule of Equity Method Investments [Line Items]
Equity method investment, underlying equity in net assets	$ 10,342