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Stock-Based Compensation - RSU (Details) - Restricted stock awards
$ / shares in Units, shares in Thousands, $ in Millions
3 Months Ended
Mar. 31, 2023
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award  
Compensation costs related to unvested stock options not yet recognized | $ $ 4.5
Weighted-average remaining contractual terms 1 year 4 months 24 days
Shares  
Non-vested, beginning of period (in shares) | shares 984
Granted (in shares) | shares 20
Vested (in shares) | shares (9)
Forfeited (in shares) | shares (3)
Non-vested, end of period (in shares) | shares 992
Weighted Average Grant Date Fair Value  
Non-vested, beginning of period (in dollars per share) | $ / shares $ 5.55
Granted (in dollars per share) | $ / shares 4.41
Vested (in dollars per share) | $ / shares 12.26
Forfeited (in dollars per share) | $ / shares 5.40
Non-vested, end of period (in dollars per share) | $ / shares $ 5.46