Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (USD $) In Thousands, unless otherwise specified	Total USD ($)	Total Equity USD ($)	Common Stock	Additional Paid-in Capital USD ($)	Retained Deficit USD ($)	Accumulated Other Comprehensive Income (Loss) USD ($)	Successor [Member] USD ($)	Successor [Member] Total Equity USD ($)	Successor [Member] Additional Paid-in Capital USD ($)
Balance -- beginning of period at Dec. 29, 2012	$ 139,202	$ 139,202		$ 256,180	$ (102,209)	$ (14,769)
Balance -- beginning of period, shares at Dec. 29, 2012			1
Adjustments to Additional Paid in Capital Amounts Due to Shareholders								(222)	(222)
Reclassification of Common Shares Call Option							3,341		3,341
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(22,400)	(22,400)			(22,400)
Share-based compensation		3,456		3,456
Employee postretirement benefits, net of tax	188	188				188
Currency translation	3,560	3,560				3,560
Balance -- end of period at Sep. 28, 2013	$ 127,125	$ 127,125		$ 262,755	$ (124,609)	$ (11,021)
Balance -- end of period, shares at Sep. 28, 2013			1