XML 122 R106.htm IDEA: XBRL DOCUMENT v3.20.4
Stock Based Compensation - Outstanding Stock Options Granted In Relation to Option Price and Weighted Average Maturity (Detail)
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Options Outstanding | shares 19,500,000
Weighted Average Price $ 19,420
Weighted Average Life Remaining 9 months
Exercise Price 1 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Lower Limit $ 15.01
Range of Exercise Prices, Upper Limit $ 20.00
Options Outstanding | shares 9,000,000
Weighted Average Price $ 18,760
Weighted Average Life Remaining 1 year 4 months
Exercise Price 2 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Range of Exercise Prices, Lower Limit $ 20.01
Range of Exercise Prices, Upper Limit $ 22.50
Options Outstanding | shares 10,500,000
Weighted Average Price $ 20,020.00
Weighted Average Life Remaining 4 months