Schedule For Gross Unrecognized Tax Benefits (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 29, 2012	Dec. 31, 2011
Income Tax Disclosure [Line Items]
Gross unrecognized tax benefits - beginning of the year	$ 7,364	$ 9,209
Gross increases related to current year tax positions	373	553
Gross increases related to prior year tax positions	929	755
Gross decreases related to prior year tax positions	(5,212)	(2,098)
Settlements	(246)	(274)
Lapse of statute of limitations	(879)	(781)
Gross unrecognized tax benefits - end of the year	$ 2,329	$ 7,364

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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The gross amount of decreases in unrecognized tax benefits resulting from tax positions taken in prior period tax returns, excluding amounts pertaining to examined tax returns.

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The gross amount of increases in unrecognized tax benefits resulting from tax positions that have been or will be taken in the tax return for the current period, excluding amounts pertaining to examined tax returns.

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