Share-Based Compensation (Tables)

9 Months Ended

Dec. 26, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Share Option Activity

The following table summarizes the share option activity during the nine months ended December 26, 2015:

	Number of Options		Weighted Average Exercise Price
Outstanding at March 28, 2015	7,187,003		$	23.14
Granted	515,430		$	47.07
Exercised	(901,528	)	$	7.11
Canceled/forfeited	(217,637	)	$	50.50
Outstanding at December 26, 2015	6,583,268		$	26.31

Assumptions Used to Estimate Fair Value of Options

The following table represents assumptions used to estimate the fair value of options:

	Three Months Ended				Nine Months Ended
	December 26 2015		December 27 2014		December 26 2015		December 27 2014
Expected dividend yield	0.0	%	0.0	%	0.0	%	0.0	%
Volatility factor	30.8	%	32.8	%	31.1	%	33.2	%
Weighted average risk-free interest rate	1.3	%	1.5	%	1.6	%	1.5	%
Expected life of option	4.75 years		4.75 years		4.75 years		4.75 years

Summary of Restricted Share and Restricted Share Unit Activity

The following table summarizes the restricted share activity during the nine months ended December 26, 2015:

	Restricted Shares
	Number of  Unvested Restricted Shares		Weighted Average Grant Date Fair Value
Unvested at March 28, 2015	770,592		$	68.77
Granted	—		$	—
Vested	(324,705	)	$	50.50
Canceled/forfeited	(42,519	)	$	80.63
Unvested at December 26, 2015	403,368		$	82.22

The following table summarizes the restricted share unit activity during the nine months ended December 26, 2015:

	Service-based				Performance-based
	Number of Restricted Share Units		Weighted Average Grant Date Fair Value		Number of Restricted Share Units		Weighted Average Grant Date Fair Value
Unvested at March 28, 2015	35,940		$	66.26	317,201		$	76.69
Granted	1,026,055		$	46.41	287,476		$	47.10
Vested	(12,659	)	$	56.28	—		$	—
Canceled/forfeited	(36,427	)	$	47.67	(21,551	)	$	80.74
Unvested at December 26, 2015	1,012,909		$	46.94	583,126		$	61.95

Summary of Compensation Expense Attributable to Share-Based Compensation

The following table summarizes compensation expense attributable to share-based compensation for the three months and nine months ended December 26, 2015 and December 27, 2014 (in thousands):

	Three Months Ended				Nine Months Ended
	December 26, 2015		December 27, 2014		December 26, 2015		December 27, 2014
Share-based compensation expense	$	12,841	$	11,866	$	38,705	$	33,445
Tax benefits related to share-based compensation expense	$	4,311	$	4,420	$	13,067	$	12,264