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 | |||||||||||||
March 31, 2017 | December 31, 2016 | April 1, 2016 | |||||||||||
Cost of revenues | $ | 1.5 | $ | 2.0 | $ | 1.9 | |||||||
Research and development | 2.9 | 2.8 | 2.5 | ||||||||||
Selling and marketing | 2.8 | 2.6 | 2.1 | ||||||||||
General and administrative | 7.9 | 6.8 | 5.1 | ||||||||||
Total share-based compensation expense | $ | 15.1 | $ | 14.2 | $ | 11.6 | |||||||