Financial Guarantees and Condensed Consolidating Statement of Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Condensed Consolidating Statement of Operations
Net sales	$ 287,082	$ 295,171
Cost of goods sold	(241,216)	(241,984)
Gross profit	45,866	53,187
Selling, general and administrative expenses	(34,342)	(34,131)
Special charges, net	(1,804)	(2,419)
Other operating, net	(340)	361
Operating income (loss)	9,380	16,998
Other income (expense):
Interest expense	(12,084)	(12,848)
Intercompany royalty and technical service fees	0	0
Foreign currency and other, net	(1,420)	62
Equity in earnings of subsidiaries	0	0
Income (loss) before income taxes	(4,124)	4,212
Income tax (provision) benefit	(2,103)	(4,477)
Net income (loss)	(6,227)	(265)
Other comprehensive income (loss)	(9,903)	4,558
PGI (Issuer)
Condensed Consolidating Statement of Operations
Net sales	0	0
Cost of goods sold	(25)	17
Gross profit	(25)	17
Selling, general and administrative expenses	(9,644)	(9,291)
Special charges, net	(1,354)	(1,478)
Other operating, net	2	0
Operating income (loss)	(11,021)	(10,752)
Other income (expense):
Interest expense	(10,228)	(11,275)
Intercompany royalty and technical service fees	1,327	1,490
Foreign currency and other, net	(2)	(30)
Equity in earnings of subsidiaries	11,524	18,165
Income (loss) before income taxes	(8,400)	(2,402)
Income tax (provision) benefit	2,173	2,137
Net income (loss)	(6,227)	(265)
Other comprehensive income (loss)	(9,903)	4,558
Guarantors
Condensed Consolidating Statement of Operations
Net sales	93,012	95,414
Cost of goods sold	(81,846)	(82,447)
Gross profit	11,166	12,967
Selling, general and administrative expenses	(5,760)	(5,917)
Special charges, net	(37)	(216)
Other operating, net	(76)	103
Operating income (loss)	5,293	6,937
Other income (expense):
Interest expense	3,101	3,315
Intercompany royalty and technical service fees	1,607	1,811
Foreign currency and other, net	(97)	(163)
Equity in earnings of subsidiaries	3,817	9,151
Income (loss) before income taxes	13,721	21,051
Income tax (provision) benefit	(2,145)	(2,832)
Net income (loss)	11,576	18,219
Other comprehensive income (loss)	16,102	24,380
Non-Guarantors
Condensed Consolidating Statement of Operations
Net sales	199,529	204,541
Cost of goods sold	(164,804)	(164,338)
Gross profit	34,725	40,203
Selling, general and administrative expenses	(18,938)	(18,923)
Special charges, net	(413)	(725)
Other operating, net	(266)	258
Operating income (loss)	15,108	20,813
Other income (expense):
Interest expense	(4,957)	(4,888)
Intercompany royalty and technical service fees	(2,934)	(3,301)
Foreign currency and other, net	(1,321)	255
Equity in earnings of subsidiaries	0	0
Income (loss) before income taxes	5,896	12,879
Income tax (provision) benefit	(2,131)	(3,782)
Net income (loss)	3,765	9,097
Other comprehensive income (loss)	5,384	12,228
Eliminations
Condensed Consolidating Statement of Operations
Net sales	(5,459)	(4,784)
Cost of goods sold	5,459	4,784
Gross profit	0	0
Selling, general and administrative expenses	0	0
Special charges, net	0	0
Other operating, net	0	0
Operating income (loss)	0	0
Other income (expense):
Interest expense	0	0
Intercompany royalty and technical service fees	0	0
Foreign currency and other, net	0	0
Equity in earnings of subsidiaries	(15,341)	(27,316)
Income (loss) before income taxes	(15,341)	(27,316)
Income tax (provision) benefit	0	0
Net income (loss)	(15,341)	(27,316)
Other comprehensive income (loss)	$ (21,486)	$ (36,608)