XML 65 R53.htm IDEA: XBRL DOCUMENT v3.20.2
Stock-based compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Dec. 28, 2019
Jun. 27, 2020
Sep. 28, 2019
Number of Options      
Beginning balance (in shares) 37,155,568 37,155,568  
Granted (in shares)   0  
Exercised (in shares)   (3,262,189)  
Forfeited (in shares)   (2,088,232)  
Ending balance (in shares)   31,805,147  
Options exercisable (in shares)   25,966,388  
Options vested and expected to vest (in shares)   31,071,037  
Weighted-Average Exercise Price      
Beginning balance (in USD per share) $ 11.39 $ 11.39  
Granted (in USD per share)   0  
Exercised (in USD per share)   5.43  
Forfeited (in USD per share)   14.00  
Ending balance (in USD per share)   11.82  
Option exercisable - Weighted Average Exercise Price (in USD per share)   11.24  
Options vested and expected to vest - Weighted Average Exercise Price (in USD per share)   $ 11.76  
Additional Information      
Weighted Average Remaining Contractual Term 6 years 3 months 18 days 5 years 9 months 18 days  
Option exercisable - Weighted Average Remaining Contractual Term   5 years 3 months 18 days  
Options vested and expected to vest - Weighted Average Remaining Contractual Term   5 years 8 months 12 days  
Aggregate Intrinsic Value   $ 102,403 $ 94,288
Options exercisable - Weighted Average Intrinsic Value   98,198  
Options vested and expected to vest - Weighted Average Intrinsic Value   $ 101,890