Restricted and Performance Stock Unit Activity (Detail) shares in Thousands |
3 Months Ended |
|---|---|
|
Mar. 31, 2017
shares
| |
| Restricted Stock Units | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Beginning Balance | 13,308 |
| Granted | 5,105 |
| Payments | (4,826) |
| Cancelled/Forfeited | (44) |
| Ending Balance | 13,543 |
| Performance Stock Units | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
| Beginning Balance | 17,919 |
| Granted | 5,837 |
| Payments | (6,031) |
| Cancelled/Forfeited | (147) |
| Ending Balance | 17,578 |