Pension and Postretirement Benefit Plans (Details) (Pension Benefits [Member], USD $) In Thousands, unless otherwise specified	3 Months Ended		8 Months Ended	9 Months Ended	1 Months Ended
	Sep. 29, 2012 Successor [Member]	Oct. 01, 2011 Successor [Member]	Oct. 01, 2011 Successor [Member]	Sep. 29, 2012 Successor [Member]	Jan. 28, 2011 Predecessor [Member]
Components of net periodic benefit cost:
Current service costs	$ 495	$ 531	$ 1,421	$ 1,509	$ 159
Interest costs on projected benefit obligation and other	1,417	1,631	4,370	4,288	492
Return on plan assets	(1,590)	(1,788)	(4,784)	(4,808)	(539)
Curtailment / settlement loss	0	0	0	38	0
Amortization of transition costs and other	(14)	(30)	(81)	(45)	(8)
Periodic benefit cost (benefit), net	$ 308	$ 344	$ 926	$ 982	$ 104