XML 55 R41.htm IDEA: XBRL DOCUMENT v3.20.2
CASH, CASH EQUIVALENTS AND RESTRICTED CASH (Details) - USD ($)
$ in Thousands
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2019
Dec. 31, 2018
Cash and Cash Equivalents [Abstract]        
Cash $ 65,682 $ 43,581    
Cash equivalents 460,011 126,700    
Total cash and cash equivalents 525,693 170,281    
Restricted cash 910 22,037    
Total cash, cash equivalents and restricted cash $ 526,603 $ 192,318 $ 161,546 $ 354,835