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Stock Plans and Share-Based Compensation - Shares Issued Under Employee Stock Purchase Plan (Details) - ESPP - Employee Stock Purchase Plan - $ / shares
shares in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares issued (in shares) 326 396
Weighted average purchase price per share (in dollars per share) $ 27.44 $ 19.33