XML 65 R48.htm IDEA: XBRL DOCUMENT v3.20.4
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Accounting Policies [Abstract]        
Cash and cash equivalents $ 1,945,868 $ 1,678,273    
Restricted cash included in prepaid expenses and other current assets 143,903 0    
Cash, cash equivalents and restricted cash shown in the statement of cash flows $ 2,089,771 $ 1,678,273 $ 1,210,878 $ 1,335,855