Quarterly report pursuant to Section 13 or 15(d)

Stock-based Compensation - 2014 Equity Incentive Plan (Details)

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Stock-based Compensation - 2014 Equity Incentive Plan (Details) - 2014 Equity Incentive Plan - shares
Jan. 01, 2021
Jan. 01, 2020
Jun. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]      
Share-based compensation arrangement by share-based payment award, number of additional shares authorized 786,547 389,650  
Possible future issuance under equity compensation plan (in shares)     217,923