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Stock-Based Compensation and Other Employee Benefit Plans - ESPP (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Stock-Based Compensation and Other Employee Benefit Plans [Line Items]    
Common shares issued (in shares) 24,737 18,843
Employee Stock Purchase Plans    
Stock-Based Compensation and Other Employee Benefit Plans [Line Items]    
ESPP purchase price, percent 85.00%  
Cash proceeds (in dollars) $ 1.9 $ 1.4
Compensation expense $ 0.3 $ 0.3