Segment Reporting (Details) - Reconciliation to Consolidated Statements of Income (USD $) In Thousands, unless otherwise specified	4 Months Ended		9 Months Ended
	Oct. 05, 2013	Oct. 06, 2012	Oct. 05, 2013	Oct. 06, 2012
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Earnings (loss) before income taxes	$ 9,714	$ 22,955	$ 27,271	$ (81,276)
Unallocated amounts:
Gain on acquisition of a business				6,639
Goodwill impairment				(131,991)
Interest	(5,614)	(8,074)	(15,571)	(18,672)
Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Earnings (loss) before income taxes	13,359	29,238	38,134	59,188
Segment Reconciling Items [Member]
Unallocated amounts:
Gain on acquisition of a business				6,639
Goodwill impairment				(131,991)
Interest	$ (3,645)	$ (6,283)	$ (10,863)	$ (15,112)