Income Taxes (Detail) (USD $)	3 Months Ended						4 Months Ended		12 Months Ended
	Dec. 29, 2012	Jun. 16, 2012	Mar. 24, 2012	Dec. 31, 2011	Jun. 18, 2011	Mar. 26, 2011	Oct. 06, 2012	Oct. 08, 2011	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Income Tax Expense (Benefit)	$ (11,456,000)	$ (28,332,000)	$ 3,615,000	$ 4,527,000	$ 6,563,000	$ 4,889,000	$ 8,351,000	$ 6,644,000	$ (27,822,000)	$ 22,623,000	$ 21,185,000
Effective Income Tax Rate, Continuing Operations									22.90%	38.70%	29.40%
Income Tax Reconciliation, Prior Year Income Taxes									300,000
Income Tax Reconciliation, Increase In Reserves									100,000
Income Tax Reconciliation, Nondeductible Expense, Impairment Losses									16,200,000
Income Taxes Paid, Net									13,300,000	14,500,000	23,900,000
Deferred Tax Asset, Write-down (in Dollars)									800,000
Unrecognized Tax Benefits	1,959,000			2,129,000					1,959,000	2,129,000	1,747,000
Unrecognized Tax Benefits, Period Increase (Decrease)									(100,000)	400,000
Unrecognized Tax Benefits, Reductions Resulting from Lapse of Applicable Statute of Limitations									(248,000)	(129,000)
Unrecognized Tax Benefits, Increases Resulting from Current Period Tax Positions									78,000	511,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	300,000			500,000					300,000	500,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense									100,000
Stock Appreciation Rights (SARs) [Member]
Deferred Tax Assets, Write-Off during the period pertaining to current year									$ 300,000