Annual report pursuant to Section 13 and 15(d)

SUBSEQUENT EVENTS (Details)

v3.20.1
SUBSEQUENT EVENTS (Details) - $ / shares
12 Months Ended
Feb. 10, 2020
Dec. 31, 2019
Dec. 31, 2018
Subsequent Event [Line Items]      
Cash dividends declared (in dollars per share)   $ 0.64 $ 2.77
Subsequent Event      
Subsequent Event [Line Items]      
Cash dividends declared (in dollars per share) $ 0.20    
Hong Kong | Geographic Concentration Risk | Revenue Benchmark      
Subsequent Event [Line Items]      
Concentration risk percentage   81.00%