Net Income (Loss) Per Share - Schedule of Reconciliation of Basic and Diluted Share Counts (Details) - shares	3 Months Ended	6 Months Ended
Jun. 26, 2019	Jun. 27, 2018	Jun. 26, 2019	Jun. 27, 2018
Earnings Per Share [Abstract]
Weighted-average shares outstanding—basic (shares)	37,939,912	38,482,074	38,296,807	38,473,641
Dilutive effect of stock options and restricted shares (shares)	640,810	561,360	746,670	541,618
Weighted-average shares outstanding— diluted (shares)	38,580,722	39,043,434	39,043,477	39,015,259

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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