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Earnings Per Share - Additional Information (Detail) - shares
12 Months Ended
Dec. 30, 2018
Dec. 31, 2017
Jan. 01, 2017
Stock Option [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive Securities Excluded from Computation of Earnings Per Share 76,686 145,860 121,075
Restricted Performance Shares [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive Securities Excluded from Computation of Earnings Per Share 81,545 110,274 134,113
Restricted Stock [Member]      
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]      
Anti-dilutive Securities Excluded from Computation of Earnings Per Share 28,570