Share-based Compensation (Tables)

3 Months Ended

Mar. 28, 2017

Share-based Compensation

Summary of allocation of share-based compensation expense

	13 Weeks Ended
	March 28, 2017		March 29, 2016
Labor expense	$	1,694	$	1,399
General and administrative expense		4,524		4,389
Total share-based compensation expense	$	6,218	$	5,788

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	131,627		42.82
Forfeited	(5,706)		39.40
Vested	(221,842)		36.29
Outstanding at March 28, 2017	823,542	$	38.10	1.3	$	36,362

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	(2,344)		15.74
Exercised	(38,186)		14.73
Outstanding at March 28, 2017	77,543	$	12.93	0.4	$	2,420
Exercisable at March 28, 2017	77,543	$	12.93	0.4	$	2,420