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Equity and Stock-Based Compensation (Issuance Activity Under the SEDA) (Details) - Private Placement - YA - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2021
Class of Stock [Line Items]    
Common shares issued/sold (in shares) 0 1,700
Proceeds received $ 0 $ 10,000