XML 48 R37.htm IDEA: XBRL DOCUMENT v3.21.2
Share-Based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 9 Months Ended
Sep. 30, 2021
Number of Shares  
Options outstanding (in shares) 14,032
Options, granted (in shares) 2,896
Options, exercised (in shares) (1,193)
Options, forfeited (in shares) (739)
Options, expired (in shares) (198)
Options outstanding (in shares) 14,798
Options, vested and unvested expected to vest (in shares) 13,460
Options, exercisable (in shares) 9,071
Weighted Average Exercise  Price  
Options outstanding (in dollars per share) $ 9.54
Options, granted (in dollars per share) 17.20
Options, exercised (in dollars per share) 7.19
Options, forfeited (in dollars per share) 12.76
Options, expired (in dollars per share) 13.36
Options outstanding (in dollars per share) 11.02
Options, vested and unvested expected to vest (in dollars per share) 10.81
Options, exercisable (in dollars per share) $ 9.42
Additional Disclosures  
Weighted average remaining contractual life, options outstanding 6 years 6 months
Weighted average remaining contractual life, options vested and unvested expected to vest 6 years 4 months 24 days
Weighted average remaining contractual life, options exercisable 5 years 2 months 12 days
Aggregate intrinsic value, options outstanding $ 13.8
Aggregate intrinsic value, vested and unvested expected to vest 13.8
Aggregate intrinsic value, exercisable $ 13.6