XML 51 R39.htm IDEA: XBRL DOCUMENT v3.21.1
Stock-based Compensation - 2014 Equity Incentive Plan (Details) - 2014 Equity Incentive Plan - shares
Jan. 01, 2021
Jan. 01, 2020
Mar. 31, 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)     318,097