Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Outstanding Awards) (Details)

v3.19.3.a.u2
Stock-Based Compensation (Outstanding Awards) (Details)
shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2019
USD ($)
shares
Series A Common Stock  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares reserved for issuance upon exercise (in shares) | shares 600
Series B Common Stock  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Shares reserved for issuance upon exercise (in shares) | shares 1,200
Options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation cost related to unvested options | $ $ 2.5
Weighted average period for compensation cost to be recognized 1 year 7 months 6 days
RSAs  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation cost related to unvested restricted shares | $ $ 18.2
Weighted average period for compensation cost to be recognized 2 years 6 months