Stock-Based Compensation Arrangements - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
		Apr. 03, 2016	Mar. 29, 2015	Jan. 03, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number		2,469,610		2,393,084
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price		$ 8.78		$ 8.59	[1]
ShareBasedCompensationArrangementbyShareBasedPaymentAwarad,Options,Outstanding,WeightedAverageRemainingContractualLife		8 years 1 month 20 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value		$ 10,141
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term		3 years 2 months
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price		$ 12.51
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		(13,399)
Share-based Compensation Arrangement by Share-bassed Payment Award, Options, Exercised, Weighted Average Exercise Price	[1]	$ 8.86
Tax benefit related to the accelerated vesting of restricted stock awards		$ 4	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price		$ 8.78
ShareBasedCompensationArrangementbyShareBasedPaymentAward,Options,ExpectedtoVest,WeightedAverageRemainingContractualTerm		8 years 1 month 20 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value		$ 9,127
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares		(11,185)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price	[1]	$ 10.91
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number		2,222,650
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options		327,726
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price		$ 8.32
ShareBasedCompensationArrangementbyShareBasedPaymentAward,Options,Exercisable,WeightedAverageRemainingContractualLife		7 years 11 months
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value		$ 2,861
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options granted (shares)		101,110

[1] The weighted average exercise price reflects the original grant date fair value per option as adjusted for the dividend payment made in August 2015.