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Stock-Based Compensation - Stock-based Compensation Expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Stock-based compensation expense $ 5,258 $ 4,024 $ 9,383 $ 7,015
Cost of revenues        
Stock-based compensation expense 711 452 1,178 691
Selling, general and administrative        
Stock-based compensation expense 4,056 3,222 7,347 5,727
Engineering and development        
Stock-based compensation expense $ 491 $ 350 $ 858 $ 597