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Employee Stock-based Compensation Plans - Additional Information (Detail) - USD ($)
$ in Millions
12 Months Ended
Jan. 30, 2018
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Options granted in period (in shares)   0 0 0
Options exercised in period (in shares)   836,000    
2012 Stock Incentive Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized to be issued (in shares)   31,400,000    
New Employee Stock Inducement Plan        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized to be issued (in shares)   2,200,000    
Employee Stock Purchase Program        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Employee stock purchase program purchase period   6 months    
Employee stock purchase program discount from average market price (as a percentage) 15.00% 15.00%    
Percentage of authorized payroll deductions for common stock purchases by employees (as a percentage)   10.00%    
Shares authorized to be issued under the Employee Stock Purchase Program (in shares)   7,000,000    
Remaining shares authorized to be issued under the Employee Stock Purchase Program (in shares)   1,100,000    
Service-Based Awards | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period (in years)   3 years    
Performance Based Awards | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period (in years)   1 year    
Performance Based Awards | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period (in years)   3 years    
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total unrecognized compensation cost related to unvested stock grants   $ 144    
Cost expected to be recognized over a weighted-average period (in years)   1 year