Stock-Based Employee Compensation (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 30, 2014	Dec. 31, 2013	Dec. 25, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock issuable upon exercise of currently outstanding options	1,429,000	1,492,775
Intrinsic value of options exercised	$ 759
Total unrecognized compensation cost related to non-vested stock options	5,603
Cost is expected to be recognized	2 years 2 months 12 days
Total fair value of shares vested	2,477
Fair value of each option award, risk free interest rate	1.91%	1.44%	0.58%
Fair value of each option award, expected option life	5 years 10 months 28 days	5 years 5 months 27 days	5 years 4 months 24 days
Fair value of each option award, expected volatility	38.00%	41.65%	40.21%
Estimated dividend yield
Equity-based compensation	$ 2,567	$ 1,689	$ 378
2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted under the company's equity incentive plan, vesting period	4 years
Shares authorized for issuance	2,232,800
Shares of common stock issuable upon exercise of currently outstanding options	1,429,000
Shares available for future grants	689,925
Minimum [Member] | 2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted under the company's equity incentive plan, vesting period	1 year
Maximum [Member] | 2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted under the company's equity incentive plan, vesting period	4 years
Options granted under the Company's equity incentive plan, contractual term	10 years