Financial Guarantees and Condensed Consolidating Statement of Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 28, 2013	Sep. 29, 2012	Sep. 28, 2013	Sep. 29, 2012
Condensed Consolidating Statement of Operations
Net sales	$ 288,979	$ 290,097	$ 867,599	$ 881,512
Cost of goods sold	(240,779)	(238,123)	(723,143)	(729,932)
Gross profit	48,200	51,974	144,456	151,580
Selling, general and administrative expenses	(33,463)	(33,044)	(107,176)	(102,354)
Special charges, net	(7,093)	(1,732)	(10,647)	(12,904)
Other operating, net	(671)	235	(1,975)	754
Operating income (loss)	6,973	17,433	24,658	37,076
Other income (expense):
Interest expense	(13,185)	(12,487)	(37,592)	(38,074)
Intercompany royalty and technical service fees	0	0	0	0
Foreign currency and other, net	2,298	(999)	(22)	(4,095)
Equity in earnings of subsidiaries	0	0	0	0
Income (loss) before income taxes	(3,914)	3,947	(12,956)	(5,093)
Income tax (provision) benefit	(4,353)	(2,593)	(9,444)	(5,912)
Net income (loss)	(8,267)	1,354	(22,400)	(11,005)
Other comprehensive income (loss)	(3,272)	5,536	(18,652)	(12,339)
PGI (Issuer)
Condensed Consolidating Statement of Operations
Net sales	0	0	0	0
Cost of goods sold	(93)	12	(129)	42
Gross profit	(93)	12	(129)	42
Selling, general and administrative expenses	(9,078)	(9,141)	(33,053)	(27,420)
Special charges, net	(6,539)	(759)	(8,364)	(6,082)
Other operating, net	36	(7)	55	3
Operating income (loss)	(15,674)	(9,895)	(41,491)	(33,457)
Other income (expense):
Interest expense	(14,800)	(12,485)	(37,274)	(41,624)
Intercompany royalty and technical service fees	1,425	1,563	4,181	4,492
Foreign currency and other, net	2,815	18,932	2,815	18,934
Equity in earnings of subsidiaries	15,695	686	42,848	32,229
Income (loss) before income taxes	(10,539)	(1,199)	(28,921)	(19,426)
Income tax (provision) benefit	2,272	2,553	6,521	8,421
Net income (loss)	(8,267)	1,354	(22,400)	(11,005)
Other comprehensive income (loss)	(3,272)	5,536	(18,652)	(12,339)
Guarantors
Condensed Consolidating Statement of Operations
Net sales	93,021	92,443	275,850	286,210
Cost of goods sold	(77,996)	(78,461)	(234,710)	(246,998)
Gross profit	15,025	13,982	41,140	39,212
Selling, general and administrative expenses	(6,060)	(5,491)	(17,824)	(18,051)
Special charges, net	(37)	294	(176)	(2,004)
Other operating, net	(92)	19	(313)	240
Operating income (loss)	8,836	8,804	22,827	19,397
Other income (expense):
Interest expense	6,924	4,690	13,111	17,968
Intercompany royalty and technical service fees	1,681	1,853	4,985	5,295
Foreign currency and other, net	(5)	(19,092)	(252)	(18,854)
Equity in earnings of subsidiaries	989	7,754	6,679	16,078
Income (loss) before income taxes	18,425	4,009	47,350	39,884
Income tax (provision) benefit	(2,815)	(3,260)	(4,502)	(7,465)
Net income (loss)	15,610	749	42,848	32,419
Other comprehensive income (loss)	23,413	5,180	48,449	32,562
Non-Guarantors
Condensed Consolidating Statement of Operations
Net sales	201,840	203,125	607,758	610,967
Cost of goods sold	(168,572)	(165,145)	(504,313)	(498,641)
Gross profit	33,268	37,980	103,445	112,326
Selling, general and administrative expenses	(18,325)	(18,412)	(56,299)	(56,883)
Special charges, net	(517)	(1,267)	(2,107)	(4,818)
Other operating, net	(615)	223	(1,717)	511
Operating income (loss)	13,811	18,524	43,322	51,136
Other income (expense):
Interest expense	(5,309)	(4,692)	(13,429)	(14,418)
Intercompany royalty and technical service fees	(3,106)	(3,416)	(9,166)	(9,787)
Foreign currency and other, net	(512)	(839)	(2,585)	(4,175)
Equity in earnings of subsidiaries	0	0	0	0
Income (loss) before income taxes	4,884	9,577	18,142	22,756
Income tax (provision) benefit	(3,810)	(1,886)	(11,463)	(6,868)
Net income (loss)	1,074	7,691	6,679	15,888
Other comprehensive income (loss)	1,603	9,258	6,939	15,864
Eliminations
Condensed Consolidating Statement of Operations
Net sales	(5,882)	(5,471)	(16,009)	(15,665)
Cost of goods sold	5,882	5,471	16,009	15,665
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	(16,684)	(8,440)	(49,527)	(48,307)
Income (loss) before income taxes	(16,684)	(8,440)	(49,527)	(48,307)
Income tax (provision) benefit	0	0	0	0
Net income (loss)	(16,684)	(8,440)	(49,527)	(48,307)
Other comprehensive income (loss)	$ (25,016)	$ (14,438)	$ (55,388)	$ (48,426)