Income Tax - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 24, 2016	Jun. 30, 2017	Jun. 24, 2016	Dec. 30, 2016
Income Taxes [Line Items]
Income tax provision	$ 3,106	$ 2,160	$ 7,600	$ 3,610
Effective tax rate	13.30%	75.10%	18.00%	330.20%
Undistributed earnings of foreign subsidiaries	$ 139,700		$ 139,700
Gross liability for unrecognized tax benefits	$ 300	$ 300	$ 300	$ 300
ASU 2016-09 [Member] | Federal [Member]
Income Taxes [Line Items]
Excluded windfall deductions recognized as deferred tax asset net					$ 1,600
ASU 2016-09 [Member] | State [Member]
Income Taxes [Line Items]
Excluded windfall deductions recognized as deferred tax asset net					$ 200