Guarantor Financial Information Condensed Consolidating Balance Sheet (Details) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
ASSETS
Total current assets	$ 290,262	$ 219,680
Investments in subsidiaries	0	0
Property, plant and equipment, net	453,927	400,222
Intangible assets, net	337,402	362,914
Goodwill	381,369	381,369
Investment in unconsolidated subsidiary	62,495	21,733
Other assets	26,961	31,112
Total assets	1,552,416	1,417,030
LIABILITIES AND STOCKHOLDERS' EQUITY
Total current liabilities	131,684	127,257
Long-term debt, net of current portion	250,142	280,020
Other noncurrent liabilities	61,539	58,245
Deferred income taxes	46,615	31,133
Total liabilities	489,980	496,655
Stockholders' equity:
Total stockholders’ equity	1,062,436	920,375	464,296	284,877
Total liabilities and stockholders' equity	1,552,416	1,417,030
Issuer [Member]
ASSETS
Total current assets	174,576	124,675
Investments in subsidiaries	1,449,577	1,286,175
Property, plant and equipment, net	148,131	119,898
Intangible assets, net	14,497	14,747
Goodwill	21,860	21,860
Investment in unconsolidated subsidiary	0	0
Other assets	26,530	27,725
Total assets	1,835,171	1,595,080
LIABILITIES AND STOCKHOLDERS' EQUITY
Total current liabilities	414,755	317,561
Long-term debt, net of current portion	250,000	280,000
Other noncurrent liabilities	61,365	46,011
Deferred income taxes	46,615	31,133
Total liabilities	772,735	674,705
Stockholders' equity:
Total stockholders’ equity	1,062,436	920,375
Total liabilities and stockholders' equity	1,835,171	1,595,080
Guarantors [Member]
ASSETS
Total current assets	455,604	347,989
Investments in subsidiaries	0	0
Property, plant and equipment, net	305,796	280,324
Intangible assets, net	322,634	347,874
Goodwill	359,243	359,243
Investment in unconsolidated subsidiary	0	0
Other assets	431	3,387
Total assets	1,443,708	1,338,817
LIABILITIES AND STOCKHOLDERS' EQUITY
Total current liabilities	59,218	63,718
Long-term debt, net of current portion	142	20
Other noncurrent liabilities	0	12,052
Deferred income taxes	0	0
Total liabilities	59,360	75,790
Stockholders' equity:
Total stockholders’ equity	1,384,348	1,263,027
Total liabilities and stockholders' equity	1,443,708	1,338,817
Non-guarantors [Member]
ASSETS
Total current assets	3,037	3,980
Investments in subsidiaries	0	0
Property, plant and equipment, net	0	0
Intangible assets, net	271	293
Goodwill	266	266
Investment in unconsolidated subsidiary	62,495	21,733
Other assets	0	0
Total assets	66,069	26,272
LIABILITIES AND STOCKHOLDERS' EQUITY
Total current liabilities	666	2,942
Long-term debt, net of current portion	0	0
Other noncurrent liabilities	174	182
Deferred income taxes	0	0
Total liabilities	840	3,124
Stockholders' equity:
Total stockholders’ equity	65,229	23,148
Total liabilities and stockholders' equity	66,069	26,272
Eliminations [Member]
ASSETS
Total current assets	(342,955)	(256,964)
Investments in subsidiaries	(1,449,577)	(1,286,175)
Property, plant and equipment, net	0	0
Intangible assets, net	0	0
Goodwill	0	0
Investment in unconsolidated subsidiary	0	0
Other assets	0	0
Total assets	(1,792,532)	(1,543,139)
LIABILITIES AND STOCKHOLDERS' EQUITY
Total current liabilities	(342,955)	(256,964)
Long-term debt, net of current portion	0	0
Other noncurrent liabilities	0	0
Deferred income taxes	0	0
Total liabilities	(342,955)	(256,964)
Stockholders' equity:
Total stockholders’ equity	(1,449,577)	(1,286,175)
Total liabilities and stockholders' equity	$ (1,792,532)	$ (1,543,139)