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Cash and Cash Equivalents (Tables)
 3 Months Ended
Mar. 31, 2022
Cash and Cash Equivalents [Abstract]  
Cash and Cash Equivalents The carrying values of the Company’s cash and cash equivalents are as follows:
As of
March 31,
As of December 31,
20222021
(in thousands)
(unaudited)
Cash$47,096 $57,008 
Cash equivalents29,253 70,689 
Restricted cash - letters of credit6,955 6,927 
Total cash and cash equivalents$83,304 $134,624 
Restrictions on Cash and Cash Equivalents The carrying values of the Company’s cash and cash equivalents are as follows:
As of
March 31,
As of December 31,
20222021
(in thousands)
(unaudited)
Cash$47,096 $57,008 
Cash equivalents29,253 70,689 
Restricted cash - letters of credit6,955 6,927 
Total cash and cash equivalents$83,304 $134,624