Total share-based compensation expense, related to the company’s stock options, restricted stock units, stock grant awards and employee stock purchase plan is included below.
| Quarter Ended | Year Ended | ||||||||||||||||||
| December 31, |
October 2, |
December 31, | December 31, | December 31, | |||||||||||||||
| 2015 | 2015 | 2014 | 2015 | 2014 | |||||||||||||||
| Cost of revenues | $ | 1.9 | $ | 2.0 | $ | 2.0 | $ | 7.7 | $ | 6.8 | |||||||||
| Research and development | 2.2 | 2.2 | 2.5 | 9.2 | 8.7 | ||||||||||||||
| Selling and marketing | 1.8 | 2.2 | 2.3 | 8.5 | 8.1 | ||||||||||||||
| General and administrative | 4.7 | 4.5 | 6.0 | 21.5 | 22.2 | ||||||||||||||
| Total share-based compensation expense | $ | 10.6 | $ | 10.9 | $ | 12.8 | $ | 46.9 | $ | 45.8 | |||||||||
