Computation of Basic and Diluted Net Income Per Common Share - Additional Information (Details) - shares	12 Months Ended
Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Stock options, restricted stock units and restricted stock awards
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Shares that were excluded from the computation of diluted weighted average shares outstanding	1,222,760	808,079	399,166

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration