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Stock-Based Incentive Compensation Plans - Stock Option Activity (Details)
9 Months Ended
Sep. 30, 2021
$ / shares
shares
Number of Shares  
Outstanding, beginning of period (in shares) | shares 2,405,957
Exercised (in shares) | shares (317,001)
Canceled and forfeited (in shares) | shares (25,217)
Outstanding, end of period (in shares) | shares 2,063,739
Weighted-Average Exercise Price  
Outstanding, beginning of period (in dollars per share) | $ / shares $ 8.54
Exercised (in dollars per share) | $ / shares 7.34
Canceled and forfeited (in dollars per share) | $ / shares 15.78
Outstanding, end of period (in dollars per share) | $ / shares $ 10.00