Schedule of Long-term Debt (Details) (USD $)	Mar. 30, 2013	Dec. 29, 2012
Long-term debt
Capital lease obligations	$ 197,000	$ 244,000
Total debt	604,662,000	598,876,000
Less: Current maturities	(21,463,000)	(19,477,000)
Total long-term debt	583,199,000	579,399,000
7.75% Senior secured notes | Senior Notes
Long-term debt
Carrying amount of long-term debt	560,000,000	560,000,000
ABL Facility | Line of Credit
Long-term debt
Carrying amount of long-term debt	0	0
United States Dollar Loan | Foreign Line of Credit | Argentina Subsidiary
Long-term debt
Carrying amount of long-term debt	10,842,000	11,674,000
United States Dollar Loan | Foreign Line of Credit | Suzhou Subsidiary - Healthcare
Long-term debt
Amount outstanding	15,981,000
United States Dollar Loan | Foreign Line of Credit | Suzhou subsidiary - Hygiene
Long-term debt
Amount outstanding	$ 17,642,000	$ 10,977,000