Annual report pursuant to Section 13 and 15(d)

RELATED PARTY TRANSACTIONS (Details)

v3.10.0.1
RELATED PARTY TRANSACTIONS (Details) - Company's Joint Venture Partner - China - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Related Party Transactions    
Payments for advance to affiliate $ 4.0 $ 2.0
Payments for advance to affiliate by co-venturer $ 1.0 $ 0.5
Debt instrument, term (in years) 1 year  
Interest rate, stated percentage 3.00%