Net Income (Loss) Per Share - Schedule of Reconciliation of Basic and Diluted Share Counts (Details) - shares	3 Months Ended
Mar. 27, 2019	Mar. 28, 2018
Earnings Per Share [Abstract]
Weighted-average shares outstanding—basic (shares)	38,653,702	38,465,208
Dilutive effect of stock options and restricted shares (shares)	842,734	522,143
Weighted-average shares outstanding— diluted (shares)	39,496,436	38,987,351

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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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- Definition

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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