Quarterly report pursuant to Section 13 or 15(d)

Cash, Cash Equivalents, Restricted Cash and Short-Term Investments - Investments (Details)

v3.22.2.2
Cash, Cash Equivalents, Restricted Cash and Short-Term Investments - Investments (Details) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Marketable Securities [Line Items]    
Amortized Cost $ 377,366 $ 446,897
Unrealized Gains 4 0
Unrealized Losses (726) (47)
Estimated Fair Value 376,644 446,850
Total held to maturity securities at amortized cost   19,228
Total cash, cash equivalents, restricted cash and short-term investments 376,600 466,078
Cash, cash equivalents and restricted cash    
Marketable Securities [Line Items]    
Amortized Cost 86,052 231,900
Unrealized Gains 0 0
Unrealized Losses 0 0
Estimated Fair Value 86,052 231,900
Certificates of deposit    
Marketable Securities [Line Items]    
Amortized Cost 4,900 3,144
Unrealized Gains 4 0
Unrealized Losses 0 (4)
Estimated Fair Value 4,904 3,140
Corporate bond    
Marketable Securities [Line Items]    
Amortized Cost 98,448 2,592
Unrealized Gains 0 0
Unrealized Losses (380) (1)
Estimated Fair Value 98,068 2,591
Commercial paper    
Marketable Securities [Line Items]    
Amortized Cost 112,833 206,764
Unrealized Gains 0 0
Unrealized Losses (200) (40)
Estimated Fair Value 112,633 206,724
Treasury bill    
Marketable Securities [Line Items]    
Amortized Cost 26,721 2,497
Unrealized Gains 0 0
Unrealized Losses (17) (2)
Estimated Fair Value 26,704 $ 2,495
Treasury bond    
Marketable Securities [Line Items]    
Amortized Cost 44,670  
Unrealized Gains 0  
Unrealized Losses (117)  
Estimated Fair Value 44,553  
Yankee bond    
Marketable Securities [Line Items]    
Amortized Cost 3,742  
Unrealized Gains 0  
Unrealized Losses (12)  
Estimated Fair Value $ 3,730