Schedule II Valuation and Qualifying Accounts (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	$ 308	$ 463	$ 556
Additions Not Charged to Expense	354	1	(2)
Additions (Reductions) Charged (Credited) to Expense	134	(57)	(25)
Deductions/Write-offs	233	99	66
Balance at End of Year	563	308	463
Reserve for Excess and Obsolete Inventories [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Year	28,062	25,575	23,783
Additions Not Charged to Expense	7,423	611	88
Additions (Reductions) Charged (Credited) to Expense	8,129	8,884	5,796
Deductions/Write-offs	4,786	7,008	4,092
Balance at End of Year	$ 38,828	$ 28,062	$ 25,575