Financial Guarantees and Condensed Consolidating Statement of Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012
Condensed Consolidating Statement of Operations
Net sales	$ 291,538	$ 296,244	$ 578,620	$ 591,415
Cost of goods sold	(241,148)	(249,825)	(482,364)	(491,809)
Gross profit	50,390	46,419	96,256	99,606
Selling, general and administrative expenses	(39,371)	(35,180)	(73,713)	(69,310)
Special charges, net	(1,750)	(8,753)	(3,554)	(11,172)
Other operating, net	(964)	159	(1,304)	519
Operating income (loss)	8,305	2,645	17,685	19,643
Other income (expense):
Interest expense	(12,323)	(12,738)	(24,407)	(25,587)
Intercompany royalty and technical service fees	0	0	0	0
Foreign currency and other, net	(900)	(3,160)	(2,320)	(3,097)
Equity in earnings of subsidiaries	0	0	0	0
Income (loss) before income taxes	(4,918)	(13,253)	(9,042)	(9,041)
Income tax (provision) benefit	(2,988)	1,159	(5,091)	(3,318)
Net income (loss)	(7,906)	(12,094)	(14,133)	(12,359)
Other comprehensive income (loss)	(5,477)	(22,433)	(15,380)	(17,875)
PGI (Issuer)
Condensed Consolidating Statement of Operations
Net sales	0	0	0	0
Cost of goods sold	(11)	12	(36)	30
Gross profit	(11)	12	(36)	30
Selling, general and administrative expenses	(14,331)	(8,988)	(23,975)	(18,279)
Special charges, net	(471)	(3,846)	(1,826)	(5,324)
Other operating, net	16	10	18	9
Operating income (loss)	(14,797)	(12,812)	(25,819)	(23,564)
Other income (expense):
Interest expense	(12,246)	(7,708)	(22,474)	(18,983)
Intercompany royalty and technical service fees	1,428	1,438	2,756	2,929
Foreign currency and other, net	2	32	0	0
Equity in earnings of subsidiaries	15,630	3,226	27,155	21,391
Income (loss) before income taxes	(9,983)	(15,824)	(18,382)	(18,227)
Income tax (provision) benefit	2,077	3,730	4,249	5,868
Net income (loss)	(7,906)	(12,094)	(14,133)	(12,359)
Other comprehensive income (loss)	(5,477)	(22,433)	(15,380)	(17,875)
Guarantors
Condensed Consolidating Statement of Operations
Net sales	89,817	98,353	182,829	193,767
Cost of goods sold	(74,870)	(86,090)	(156,714)	(168,537)
Gross profit	14,947	12,263	26,115	25,230
Selling, general and administrative expenses	(6,004)	(6,642)	(11,764)	(12,559)
Special charges, net	(103)	(2,082)	(139)	(2,297)
Other operating, net	(145)	118	(222)	220
Operating income (loss)	8,695	3,657	13,990	10,594
Other income (expense):
Interest expense	3,086	6,708	6,187	10,023
Intercompany royalty and technical service fees	1,697	1,631	3,304	3,442
Foreign currency and other, net	(150)	402	(247)	239
Equity in earnings of subsidiaries	1,872	(7,726)	5,690	1,424
Income (loss) before income taxes	15,200	4,672	28,924	25,722
Income tax (provision) benefit	458	(1,373)	(1,687)	(4,205)
Net income (loss)	15,658	3,299	27,237	21,517
Other comprehensive income (loss)	8,930	(7,150)	25,035	17,229
Non-Guarantors
Condensed Consolidating Statement of Operations
Net sales	206,389	203,301	405,918	407,843
Cost of goods sold	(170,935)	(169,157)	(335,741)	(333,497)
Gross profit	35,454	34,144	70,177	74,346
Selling, general and administrative expenses	(19,036)	(19,550)	(37,974)	(38,472)
Special charges, net	(1,176)	(2,825)	(1,589)	(3,551)
Other operating, net	(835)	31	(1,100)	290
Operating income (loss)	14,407	11,800	29,514	32,613
Other income (expense):
Interest expense	(3,163)	(11,738)	(8,120)	(16,627)
Intercompany royalty and technical service fees	(3,125)	(3,069)	(6,060)	(6,371)
Foreign currency and other, net	(752)	(3,594)	(2,073)	(3,336)
Equity in earnings of subsidiaries	0	0	0	0
Income (loss) before income taxes	7,367	(6,601)	13,261	6,279
Income tax (provision) benefit	(5,523)	(1,198)	(7,653)	(4,981)
Net income (loss)	1,844	(7,799)	5,608	1,298
Other comprehensive income (loss)	(44)	(12,521)	5,339	(293)
Eliminations
Condensed Consolidating Statement of Operations
Net sales	(4,668)	(5,410)	(10,127)	(10,195)
Cost of goods sold	4,668	5,410	10,127	10,195
Gross profit	0	0	0	0
Selling, general and administrative expenses	0	0	0	0
Special charges, net	0	0	0	0
Other operating, net	0	0	0	0
Operating income (loss)	0	0	0	0
Other income (expense):
Interest expense	0	0	0	0
Intercompany royalty and technical service fees	0	0	0	0
Foreign currency and other, net	0	0	0	0
Equity in earnings of subsidiaries	(17,502)	4,500	(32,845)	(22,815)
Income (loss) before income taxes	(17,502)	4,500	(32,845)	(22,815)
Income tax (provision) benefit	0	0	0	0
Net income (loss)	(17,502)	4,500	(32,845)	(22,815)
Other comprehensive income (loss)	$ (8,886)	$ 19,671	$ (30,374)	$ (16,936)