Inventories (Details) (USD $)	Mar. 30, 2014		Dec. 31, 2013
Inventories [Abstract]
Raw materials	$ 34,000,000		$ 35,100,000
Work-in-process	7,200,000		6,300,000
Finished goods	28,100,000		26,300,000
Packaging and supplies	22,300,000		21,500,000
Total inventories	$ 91,614,000	[1]	$ 89,169,000	[2]

[1] Unaudited

[2] Condensed from audited financial statements