Share-based Compensation (Tables)

9 Months Ended

Sep. 26, 2017

Share-based Compensation

Summary of allocation of share-based compensation expense

	13 Weeks Ended				39 Weeks Ended
	September 26, 2017		September 27, 2016		September 26, 2017		September 27, 2016
Labor expense	$	1,822	$	1,570	$	5,255	$	4,475
General and administrative expense		4,639		5,074		13,571		13,872
Total share-based compensation expense	$	6,461	$	6,644	$	18,826	$	18,347

Summary of restricted stock unit activity

		Weighted-Average		Weighted-Average
		Grant Date Fair		Remaining Contractual	Aggregate
	Shares	Value		Term (years)	Intrinsic Value
Outstanding at December 27, 2016	919,463	$	37.06
Granted	349,049		46.70
Forfeited	(35,041)		37.40
Vested	(404,505)		38.14
Outstanding at September 26, 2017	828,966	$	40.57	1.2	$	39,991

Summary of stock option activity

		Weighted-		Weighted-Average
		Average Exercise		Remaining Contractual	Aggregate
	Shares	Price		Term (years)	Intrinsic Value
Outstanding at December 27, 2016	118,073	$	13.57
Granted	—		—
Cancelled/Expired	(2,836)		15.47
Exercised	(109,085)		13.61
Outstanding at September 26, 2017	6,152	$	11.93	0.1	$	223
Exercisable at September 26, 2017	6,152	$	11.93	0.1	$	223