Stockholders' Equity and Stock-Based Compensation - Summary of Activity of Stock Options (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013
Activity of stock option plans [Roll Forward]
Number of Shares Outstanding (Options), Beginning Balance (in shares)	1,909,039
Number of Shares Outstanding (Options), Exercised (in shares)	(409,285)
Number of Shares Outstanding (Options), Granted (in shares)	74,300
Number of Shares Outstanding (Options), Cancelled (in shares)	(191,061)
Number of Shares Outstanding (Options), Ending Balance (in shares)	1,382,993	1,909,039
Number of Shares Outstanding (Options), Exercisable	1,052,110
Weighted average exercise price for stock option plans [Roll Forward]
Weighted Average Exercise Price, Beginning Balance (in dollars per share)	$ 13.22
Weighted Average Exercise Price, Exercised (in dollars per share)	$ 10.45
Weighted Average Exercise Price, Granted (in dollars per share)	$ 17.56
Weighted Average Exercise Price, Cancelled (in dollars per share)	$ 15.74
Weighted Average Exercise Price, Ending Balance (in dollars per share)	$ 13.92	$ 13.22
Weighted Average Exercise Price, Exercisable (in dollars per share)	$ 13.15
Weighed Average Remaining Contractual Term, Opening	3 years 4 months 28 days	4 years 0 months 7 days
Weighed Average Remaining Contractual Term, Closing	3 years 4 months 28 days	4 years 0 months 7 days
Weighed Average Remaining Contractual Term, Exercisable	2 years 10 months 2 days
Aggregate Intrinsic Value, Opening	$ 10,341
Aggregate Intrinsic Value, Closing	4,108	10,341
Aggregate Intrinsic Value, Exercisable	$ 3,867