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Stock-Based Compensation - Restricted Stock Units (Details) - Restricted Stock Units (RSUs)
12 Months Ended
Dec. 31, 2020
shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]  
Nonvested beginning balance (in shares) 101,773
Granted (in shares) 692,331
Vested (in shares) (134,074)
Forfeited (in shares) (87,570)
Nonvested ending balance (in shares) 572,460