Valuation And Qualifying Accounts (Detail) - USD ($) $ in Thousands		12 Months Ended
		Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Allowance for Doubtful Accounts Receivable [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of Year		$ 2,662	$ 3,361	$ 5,107
Provision (Benefit)		(51)	(582)	(308)
Additions and Deductions from Reserves	[1]	(269)	(109)	(1,428)
Translation Adjustments			(8)	(10)
Balance End of Year		2,342	2,662	3,361
Allowance for Doubtful Notes Receivable [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of Year		264	931	750
Provision (Benefit)		(173)	(502)	(262)
Additions and Deductions from Reserves	[1]	132	(165)	443
Balance End of Year		$ 223	$ 264	$ 931

[1] Consists primarily of write-offs, recoveries of bad debt and certain reclassifications.