Classification of Net Deferred Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 30, 2012	Jan. 01, 2012
Deferred Tax Assets And Liabilities [Line Items]
Deferred tax assets, Current	$ 16,405	$ 17,694
Deferred tax liabilities, Current	(1,115)	(1,115)
Net deferred income taxes, Current	15,290	16,579
Deferred tax assets, Long-term	31,308	33,528
Deferred tax liabilities, Long-term	(34,356)	(33,691)
Net deferred income taxes, Long-term	(3,048)	(163)
Deferred tax assets, Total	47,713	51,222
Deferred tax liabilities, Total	(35,471)	(34,806)
Net deferred income taxes, Total	$ 12,242	$ 16,416