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Stock-based Compensation
3 Months Ended
Mar. 31, 2022
Share-based Payment Arrangement [Abstract]  
Stock-based Compensation Stock-based Compensation
Total compensation expense by award type and line item in our consolidated financial statements was as follows (in thousands):
For the Three Months Ended March 31,
  20222021
Award Type
Stock options$162 $404 
RSUs3,301 1,974 
LSUs775 1,085 
PSUs1,108 243 
Total compensation expense by award type$5,346 $3,706 
Line Item
Cost of revenue$800 $595 
Selling, general and administrative expenses4,546 3,111 
Total compensation expense by financial statement line item$5,346 $3,706 

No stock-based compensation was capitalized as software development costs for the three months ended March 31, 2022 and 2021.

Stock-based awards were granted as follows (in thousands):
For the Three Months Ended March 31,
20222021
RSUs917 939 
PSUs479 319