Financial Guarantees and Condensed Consolidating Balance Sheet (Details) (USD $) In Thousands, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 86,064	$ 97,879
Accounts receivable, net	194,827	131,569
Inventories, net	156,365	94,964
Deferred income taxes	2,318	3,832
Other current assets	59,096	33,414
Total current assets	498,670	361,658
Property, plant and equipment, net	623,279	479,169
Goodwill	120,143	80,608	80,546
Intangible assets, net	168,179	75,663
Net investment in and advances to (from) subsidiaries	0	0
Deferred income taxes	2,582	945
Other noncurrent assets	26,052	24,026
Total assets	1,438,905	1,022,069
Current liabilities:
Short-term borrowings	2,472	813
Accounts payable and accrued liabilities	307,661	196,905
Income taxes payable	3,613	3,841
Deferred income taxes	1,523	479
Current portion of long-term debt	13,797	19,477
Total current liabilities	329,066	221,515
Long-term debt	880,399	579,399
Deferred income taxes	21,161	33,181
Other noncurrent liabilities	61,845	48,772
Total liabilities	1,292,471	882,867
Common stock	0	0
Other shareholders’ equity	145,591	139,202
Noncontrolling interests	843	0
Total shareholders' equity	146,434	139,202
Total liabilities and shareholders' equity	1,438,905	1,022,069
PGI (Issuer)
Current assets:
Cash and cash equivalents	2,068	486
Accounts receivable, net	0	0
Inventories, net	0	0
Deferred income taxes	385	0
Other current assets	1,887	1,821
Total current assets	4,340	2,307
Property, plant and equipment, net	2,756	27,711
Goodwill	0	0
Intangible assets, net	31,525	24,313
Net investment in and advances to (from) subsidiaries	1,000,551	679,818
Deferred income taxes	0	0
Other noncurrent assets	298	275
Total assets	1,039,470	734,424
Current liabilities:
Short-term borrowings	410	813
Accounts payable and accrued liabilities	36,510	28,511
Income taxes payable	369	0
Deferred income taxes	0	331
Current portion of long-term debt	3,039	107
Total current liabilities	40,328	29,762
Long-term debt	850,767	560,043
Deferred income taxes	974	273
Other noncurrent liabilities	1,810	5,144
Total liabilities	893,879	595,222
Common stock	0	0
Other shareholders’ equity	145,591	139,202
Noncontrolling interests	0
Total shareholders' equity	145,591	139,202
Total liabilities and shareholders' equity	1,039,470	734,424
Guarantors
Current assets:
Cash and cash equivalents	13,103	28,285
Accounts receivable, net	46,828	22,350
Inventories, net	46,595	23,843
Deferred income taxes	2,438	613
Other current assets	12,696	7,710
Total current assets	121,660	82,801
Property, plant and equipment, net	176,380	99,660
Goodwill	43,182	20,718
Intangible assets, net	112,026	42,422
Net investment in and advances to (from) subsidiaries	615,314	723,861
Deferred income taxes	0	0
Other noncurrent assets	8,869	5,787
Total assets	1,077,431	975,249
Current liabilities:
Short-term borrowings	0	0
Accounts payable and accrued liabilities	61,950	33,344
Income taxes payable	0	89
Deferred income taxes	0	0
Current portion of long-term debt	0	0
Total current liabilities	61,950	33,433
Long-term debt	0	0
Deferred income taxes	8,053	9,149
Other noncurrent liabilities	31,372	15,540
Total liabilities	101,375	58,122
Common stock	0	0
Other shareholders’ equity	976,056	917,127
Noncontrolling interests	0
Total shareholders' equity	976,056	917,127
Total liabilities and shareholders' equity	1,077,431	975,249
Non-Guarantors
Current assets:
Cash and cash equivalents	70,893	69,108
Accounts receivable, net	147,999	109,219
Inventories, net	109,770	71,121
Deferred income taxes	2,318	3,832
Other current assets	44,513	23,883
Total current assets	375,493	277,163
Property, plant and equipment, net	444,143	351,798
Goodwill	76,961	59,890
Intangible assets, net	24,628	8,928
Net investment in and advances to (from) subsidiaries	(363,414)	(188,670)
Deferred income taxes	2,582	945
Other noncurrent assets	16,885	17,964
Total assets	577,278	528,018
Current liabilities:
Short-term borrowings	2,062	0
Accounts payable and accrued liabilities	209,201	135,050
Income taxes payable	3,244	3,752
Deferred income taxes	375	14
Current portion of long-term debt	10,758	19,370
Total current liabilities	225,640	158,186
Long-term debt	29,632	19,356
Deferred income taxes	16,104	24,506
Other noncurrent liabilities	28,663	28,088
Total liabilities	300,039	230,136
Common stock	16,966	36,083
Other shareholders’ equity	259,430	261,799
Noncontrolling interests	843
Total shareholders' equity	277,239	297,882
Total liabilities and shareholders' equity	577,278	528,018
Eliminations
Current assets:
Cash and cash equivalents	0	0
Accounts receivable, net	0	0
Inventories, net	0	0
Deferred income taxes	(2,823)	(613)
Other current assets	0	0
Total current assets	(2,823)	(613)
Property, plant and equipment, net	0	0
Goodwill	0	0
Intangible assets, net	0	0
Net investment in and advances to (from) subsidiaries	(1,252,451)	(1,215,009)
Deferred income taxes	0	0
Other noncurrent assets	0	0
Total assets	(1,255,274)	(1,215,622)
Current liabilities:
Short-term borrowings	0	0
Accounts payable and accrued liabilities	0	0
Income taxes payable	0	0
Deferred income taxes	1,148	134
Current portion of long-term debt	0	0
Total current liabilities	1,148	134
Long-term debt	0	0
Deferred income taxes	(3,970)	(747)
Other noncurrent liabilities	0	0
Total liabilities	(2,822)	(613)
Common stock	(16,966)	(36,083)
Other shareholders’ equity	(1,235,486)	(1,178,926)
Noncontrolling interests	0
Total shareholders' equity	(1,252,452)	(1,215,009)
Total liabilities and shareholders' equity	$ (1,255,274)	$ (1,215,622)