Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Summary of Stock-Based Compensation Activity - Stock Options) (Details)

v3.8.0.1
Stock-Based Compensation (Summary of Stock-Based Compensation Activity - Stock Options) (Details)
$ / shares in Units, $ in Thousands
9 Months Ended
Sep. 24, 2017
USD ($)
$ / shares
shares
Shares  
Outstanding at December 25, 2016 | shares 316,027
Exercised | shares (18,671)
Forfeited | shares (6,747)
Outstanding at September 24, 2017 | shares 290,609
Exercisable at September 24, 2017 | shares 264,871
Weighted Average Exercise Price  
Outstanding at December 25, 2016 | $ / shares $ 18.64
Exercised | $ / shares 8.66
Forfeited | $ / shares 28.91
Outstanding at September 24, 2017 | $ / shares 19.05
Exercisable at September 24, 2017 | $ / shares $ 18.08
Weighted Average Remaining Contractual Term (Years)  
Outstanding at September 24, 2017 4 years 3 months 29 days
Exercisable at September 24, 2017 4 years 2 months 16 days
Aggregate Intrinsic Value  
Outstanding at September 24, 2017 | $ $ 1,394
Exercisable at September 24, 2017 | $ $ 1,394