Annual report pursuant to Section 13 and 15(d)

Stock-based Compensation - Employee Stock Purchase Plan (Details)

v3.20.4
Stock-based Compensation - Employee Stock Purchase Plan (Details) - shares
shares in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares reserved for future issuance (in shares)   137
Employer matching percentage 50.00%  
ESPP    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Shares reserved for future issuance (in shares) 500  
Employer matching percentage 25.00%  
Offering period 6 months  
Maximum annual contribution percentage 85.00%