Subsequent events |
12 Months Ended |
|---|---|
Dec. 31, 2018 | |
| Subsequent events | |
| Subsequent events | 21. Subsequent events Equity Incentive Plan In February 2019, we granted approximately 93,000 time-based RSUs to certain executive officers that vest periodically over three years of continuous service and approximately 80,000 performance-based RSUs (assuming at-target achievement) that cliff- vest upon achievement of performance objectives through December 31, 2021. We also granted approximately 205,000 time-based RSUs to non-executive personnel that will vest quarterly over three years of continuous service. The grants were made pursuant to our 2011 Plan. |