Certain of the amounts in the above tables may not total due to rounding of individual amounts.

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												Six Months Ended
			June 29, 2018				March 30, 2018				June 30, 2017				June 29, 2018				June 30, 2017
Cost of revenue			$	1.8			$	1.6			$	1.5			$	3.4			$	3.0
Research and development			4.0				3.2				3.5				7.2				6.4
Selling and marketing			4.0				3.2				3.2				7.2				6.0
General and administrative			13.3				10.4				12.6				23.7				20.5
Total share-based compensation expense			$	23.1			$	18.4			$	20.8			$	41.5			$	35.9

NON-GAAP MEASURES