Stock-Based Compensation (Tables)

12 Months Ended

Dec. 30, 2015

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Option Activity

Changes in stock options for the years ended December 30, 2015 and December 31, 2014, are as follows:

	Shares			Weighted-Average Exercise Price
Outstanding—December 25, 2013		3,338,096		$	5.31
Grants		229,048			15.55
Exercised		(496,944	)		4.20
Forfeited, cancelled or expired		(24	)		5.31
Outstanding—December 31, 2014		3,070,176			6.25
Grants		—			—
Exercised		(863,247	)		4.93
Forfeited, cancelled or expired		(55,715	)		17.25
Outstanding—December 30, 2015		2,151,214		$	6.50
Vested and expected to vest at December 30, 2015		2,146,360		$	6.50
Exercisable at December 30, 2015		1,728,964		$	6.12

Stock Options By Range of Exercise Prices

Stock options at December 30, 2015 are summarized as follows:

Range of Exercise Prices	Number Outstanding		Weighted-Average Remaining Contractual Life (in Years)		Weighted- Average Exercise Price		Number Exercisable		Weighted-Average Exercise Price
$4.09		209,788		7.52	$	4.09		109,438	$	4.09
5.84		1,739,367		6.58		5.84		1,538,657		5.84
12.72		32,386		0.75		12.72		32,386		12.72
15.00		169,673		8.57		15.00		48,483		15.00
$4.09 - $15.00		2,151,214		6.74	$	6.50		1,728,964	$	6.12

Schedule of Changes in Restricted Shares

Changes in restricted shares for the years ended December 30, 2015 and December 31, 2014, are as follows:

	Shares			Weighted-Average Fair Value
Unvested shares at December 25, 2013		—		$	—
Granted		6,666			34.56
Released		—			—
Forfeited, cancelled, or expired		—			—
Unvested shares at December 31, 2014		6,666			34.56
Granted		7,908			18.97
Released		(2,222	)		34.56
Forfeited, cancelled, or expired		—			—
Unvested shares at December 30, 2015		12,352		$	24.58