Condensed Consolidating Financial Information (Condensed Consolidating Statement of Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 02, 2016	Mar. 28, 2015
Condensed Financial Statements, Captions [Line Items]
Net sales	$ 432,761	$ 429,677
Cost of sales	361,911	358,783
Selling, general and administrative expenses	47,239	47,157
Amortization of intangible assets	1,607	1,868
Restructuring and other charges	4,990	4,069
Operating income	17,014	17,800
Interest expense, net	24,095	25,659
Intercompany interest (income) expense	0	0
(Gain) loss on early extinguishment of debt, net	(21,613)	433
Other expense (income), net	554	168
Income (loss) from continuing operations before income taxes	13,978	(8,460)
Income tax expense (benefit)	958	(281)
(Loss) income from continuing operations before equity in income (loss) of subsidiaries	13,020	(8,179)
Equity in income (loss) of subsidiaries	0	0
Income (loss) from continuing operations	13,020	(8,179)
(Loss) income from discontinued operations, net of taxes	(1,817)	500
Net income (loss)	11,203	(7,679)
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries	0	0
Changes in pension and other employee benefit accounts, net of taxes	2,480	1,342
Currency translation adjustment, net	1,742	(1,330)
Total other comprehensive income	4,222	12
Comprehensive income (loss)	15,425	(7,667)
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	0	0
Cost of sales	0	0
Selling, general and administrative expenses	0	0
Amortization of intangible assets	0	0
Restructuring and other charges	0	0
Operating income	0	0
Interest expense, net	0	0
Intercompany interest (income) expense	0	0
(Gain) loss on early extinguishment of debt, net	0	0
Other expense (income), net	0	0
Income (loss) from continuing operations before income taxes	0	0
Income tax expense (benefit)	0	0
(Loss) income from continuing operations before equity in income (loss) of subsidiaries	0	0
Equity in income (loss) of subsidiaries	11,203	(7,679)
Income (loss) from continuing operations	11,203	(7,679)
(Loss) income from discontinued operations, net of taxes	0	0
Net income (loss)	11,203	(7,679)
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries	4,222	12
Changes in pension and other employee benefit accounts, net of taxes	0	0
Currency translation adjustment, net	0	0
Total other comprehensive income	4,222	12
Comprehensive income (loss)	15,425	(7,667)
Subsidiary Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	231,098	223,852
Cost of sales	203,331	190,863
Selling, general and administrative expenses	29,275	30,115
Amortization of intangible assets	152	152
Restructuring and other charges	3,018	3,447
Operating income	(4,678)	(725)
Interest expense, net	24,048	25,592
Intercompany interest (income) expense	(245)	(274)
(Gain) loss on early extinguishment of debt, net	(21,613)	433
Other expense (income), net	600	294
Income (loss) from continuing operations before income taxes	(7,468)	(26,770)
Income tax expense (benefit)	850	(1,234)
(Loss) income from continuing operations before equity in income (loss) of subsidiaries	(8,318)	(25,536)
Equity in income (loss) of subsidiaries	21,798	17,858
Income (loss) from continuing operations	13,480	(7,678)
(Loss) income from discontinued operations, net of taxes	(2,277)	(1)
Net income (loss)	11,203	(7,679)
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries	2,109	(1,330)
Changes in pension and other employee benefit accounts, net of taxes	2,113	1,342
Currency translation adjustment, net	0	0
Total other comprehensive income	4,222	12
Comprehensive income (loss)	15,425	(7,667)
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	201,478	204,386
Cost of sales	158,580	167,310
Selling, general and administrative expenses	17,782	16,860
Amortization of intangible assets	1,344	1,605
Restructuring and other charges	1,972	622
Operating income	21,800	17,989
Interest expense, net	47	67
Intercompany interest (income) expense	245	274
(Gain) loss on early extinguishment of debt, net	0	0
Other expense (income), net	14	(161)
Income (loss) from continuing operations before income taxes	21,494	17,809
Income tax expense (benefit)	122	866
(Loss) income from continuing operations before equity in income (loss) of subsidiaries	21,372	16,943
Equity in income (loss) of subsidiaries	1,643	604
Income (loss) from continuing operations	23,015	17,547
(Loss) income from discontinued operations, net of taxes	(1,217)	311
Net income (loss)	21,798	17,858
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries	177	353
Changes in pension and other employee benefit accounts, net of taxes	367	0
Currency translation adjustment, net	1,565	(1,683)
Total other comprehensive income	2,109	(1,330)
Comprehensive income (loss)	23,907	16,528
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	185	1,439
Cost of sales	0	610
Selling, general and administrative expenses	182	182
Amortization of intangible assets	111	111
Restructuring and other charges	0	0
Operating income	(108)	536
Interest expense, net	0	0
Intercompany interest (income) expense	0	0
(Gain) loss on early extinguishment of debt, net	0	0
Other expense (income), net	(60)	35
Income (loss) from continuing operations before income taxes	(48)	501
Income tax expense (benefit)	(14)	87
(Loss) income from continuing operations before equity in income (loss) of subsidiaries	(34)	414
Equity in income (loss) of subsidiaries	0	0
Income (loss) from continuing operations	(34)	414
(Loss) income from discontinued operations, net of taxes	1,677	190
Net income (loss)	1,643	604
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries	0	0
Changes in pension and other employee benefit accounts, net of taxes	0	0
Currency translation adjustment, net	177	353
Total other comprehensive income	177	353
Comprehensive income (loss)	1,820	957
Eliminations [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	0	0
Cost of sales	0	0
Selling, general and administrative expenses	0	0
Amortization of intangible assets	0	0
Restructuring and other charges	0	0
Operating income	0	0
Interest expense, net	0	0
Intercompany interest (income) expense	0	0
(Gain) loss on early extinguishment of debt, net	0	0
Other expense (income), net	0	0
Income (loss) from continuing operations before income taxes	0	0
Income tax expense (benefit)	0	0
(Loss) income from continuing operations before equity in income (loss) of subsidiaries	0	0
Equity in income (loss) of subsidiaries	(34,644)	(10,783)
Income (loss) from continuing operations	(34,644)	(10,783)
(Loss) income from discontinued operations, net of taxes	0	0
Net income (loss)	(34,644)	(10,783)
Other comprehensive income (loss):
Other comprehensive income (loss) of subsidiaries	(6,508)	965
Changes in pension and other employee benefit accounts, net of taxes	0	0
Currency translation adjustment, net	0	0
Total other comprehensive income	(6,508)	965
Comprehensive income (loss)	$ (41,152)	$ (9,818)