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Stock-Based Compensation - Summary of Significant Ranges of Outstanding and Exercisable Options (Details) - Options
shares in Thousands
9 Months Ended
Sep. 30, 2020
$ / shares
shares
$1.57 - $14.99  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) $ 1.57
Upper range limit (in dollars per share) $ 14.99
Number Outstanding (in shares) | shares 143
Weighted Average Remaining Contractual Life 8 years 6 months 3 days
Weighted Average Exercise Price (in dollars per share) $ 2.63
Number Exercisable (in shares) | shares | shares 54
Weighted Average Exercise Price (in dollars per share) $ 2.99
$15.00 - $25.59  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) 15.00
Upper range limit (in dollars per share) $ 25.59
Number Outstanding (in shares) | shares 8
Weighted Average Remaining Contractual Life 2 years 11 months 26 days
Weighted Average Exercise Price (in dollars per share) $ 15.00
Number Exercisable (in shares) | shares | shares 8
Weighted Average Exercise Price (in dollars per share) $ 15.00
$25.60 - $143.99  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) 25.60
Upper range limit (in dollars per share) $ 143.99
Number Outstanding (in shares) | shares 3
Weighted Average Remaining Contractual Life 3 years 7 months 9 days
Weighted Average Exercise Price (in dollars per share) $ 41.88
Number Exercisable (in shares) | shares | shares 3
Weighted Average Exercise Price (in dollars per share) $ 41.83
$144.00 - $409.99  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) 144.00
Upper range limit (in dollars per share) $ 409.99
Number Outstanding (in shares) | shares 5
Weighted Average Remaining Contractual Life 5 years 10 months 24 days
Weighted Average Exercise Price (in dollars per share) $ 144.00
Number Exercisable (in shares) | shares | shares 5
Weighted Average Exercise Price (in dollars per share) $ 144.00
$410.00 - $924.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) 410.0
Upper range limit (in dollars per share) $ 924.00
Number Outstanding (in shares) | shares 1
Weighted Average Remaining Contractual Life 4 years 5 months 8 days
Weighted Average Exercise Price (in dollars per share) $ 430.64
Number Exercisable (in shares) | shares | shares 1
Weighted Average Exercise Price (in dollars per share) $ 430.64
$1.57 - $924.00  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Lower range limit (in dollars per share) 1.57
Upper range limit (in dollars per share) $ 924.00
Number Outstanding (in shares) | shares 160
Weighted Average Remaining Contractual Life 8 years 14 days
Weighted Average Exercise Price (in dollars per share) $ 11.02
Number Exercisable (in shares) | shares | shares 71
Weighted Average Exercise Price (in dollars per share) $ 21.59