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Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Supplemental Disclosures of Cash Flow Information:        
Cash paid for interest $ (152) $ 0    
Cash paid for amounts included in the measurement of lease liabilities:        
Operating cash flows from operating leases (456) (443)    
Operating lease right-of-use assets obtained in exchange for lease obligations (179) 0    
Operating lease right-of-use assets obtained in exchange for lease obligations from acquisitions 0 (398)    
Supplemental Disclosures of Non-Cash Investing and Financing Activities:        
Capitalized software included in accounts payable 202 0    
Reconciliation of Cash and Cash Equivalents and Restricted Cash:        
Cash and cash equivalents 125,737 184,712 $ 139,078  
Restricted cash 500 500    
Total $ 126,237 $ 185,212 $ 139,578 $ 114,927