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Cash, Cash Equivalents and Restricted Cash
 3 Months Ended
Mar. 31, 2022
Cash and Cash Equivalents [Abstract]  
Cash, Cash Equivalents and Restricted Cash Cash, Cash Equivalents and Restricted CashCash, cash equivalents and restricted cash consisted of the following (in thousands):
March 31, 2022December 31, 2021
Cash and cash equivalents:
   Cash (1)
$1,765,903 $2,021,553 
   Cash equivalents (2)
551,449 500,977 
     Total cash and cash equivalents 2,317,352 2,522,530 
Restricted cash (3)
9,062 8,537 
Total cash, cash equivalents and restricted cash $2,326,414 $2,531,067 
(1) Cash consists of cash on hand and bank deposits.
(2) Cash equivalents consist of bank time deposits and money market funds.
(3) Restricted cash consists of cash subject to certain contractual restrictions, cash collateral associated with obligations and cash held in a trust in accordance with WML's share award plan.