Recent Accounting Pronouncements - Summary of Effects on Consolidated Balance Sheet Relating to Adoption of ASU 2016-09 (Detail) - USD ($) $ in Thousands	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes	$ 22,772	$ 31,838
Total liabilities	277,794	303,796
Additional paid-in-capital	252,275	249,647
Accumulated deficit	(64,716)	(104,555)
Shareholders' equity	188,084	145,611
Total shareholders' equity	$ 175,325	132,852	$ 106,961	$ 73,976
Previously Reported [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred income taxes		32,171
Total liabilities		304,129
Additional paid-in-capital		249,469
Accumulated deficit		(104,710)
Shareholders' equity		145,278
Total shareholders' equity		$ 132,519