Condensed Consolidating Financial Information (Condensed Consolidating Statement of Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Condensed Financial Statements, Captions [Line Items]
Net sales	$ 374,506	$ 432,761
Cost of sales	310,372	361,911
Selling, general and administrative expenses	44,541	47,239
Amortization of intangible assets	1,379	1,607
Restructuring and other charges	8,180	4,990
Operating income	10,034	17,014
Interest expense, net	19,147	24,095
Intercompany interest (income) expense	0	0
Loss (gain) on early extinguishment of debt, net	45	(21,613)
Other (income) expense, net	(227)	554
(Loss) income from continuing operations before income taxes	(8,931)	13,978
Income tax (benefit) expense	(239)	958
(Loss) income from continuing operations before equity in (loss) income of subsidiaries	(8,692)	13,020
Equity in (loss) income of subsidiaries	0	0
(Loss) income from continuing operations	(8,692)	13,020
Loss from discontinued operations, net of taxes	0	(1,817)
Net (loss) income	(8,692)	11,203
Other comprehensive income:
Other comprehensive income (loss) of subsidiaries	0	0
Changes in pension and other employee benefit accounts, net of taxes	1,594	2,480
Currency translation adjustment, net	453	1,742
Total other comprehensive income	2,047	4,222
Comprehensive (loss) income	(6,645)	15,425
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
Loss (gain) on early extinguishment of debt, net	0	0
Other (income) expense, net	0	0
(Loss) income from continuing operations before income taxes	0	0
Income tax (benefit) expense	0	0
(Loss) income from continuing operations before equity in (loss) income of subsidiaries	0	0
Equity in (loss) income of subsidiaries	(8,692)	11,203
(Loss) income from continuing operations		11,203
Loss from discontinued operations, net of taxes		0
Net (loss) income	(8,692)	11,203
Other comprehensive income:
Other comprehensive income (loss) of subsidiaries	2,047	4,222
Changes in pension and other employee benefit accounts, net of taxes	0	0
Currency translation adjustment, net	0	0
Total other comprehensive income	2,047	4,222
Comprehensive (loss) income	(6,645)	15,425
Subsidiary Issuer [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	198,195	231,098
Cost of sales	174,392	203,331
Selling, general and administrative expenses	29,056	29,275
Amortization of intangible assets	149	152
Restructuring and other charges	7,988	3,018
Operating income	(13,390)	(4,678)
Interest expense, net	19,084	24,048
Intercompany interest (income) expense	(282)	(245)
Loss (gain) on early extinguishment of debt, net	45	(21,613)
Other (income) expense, net	(189)	600
(Loss) income from continuing operations before income taxes	(32,048)	(7,468)
Income tax (benefit) expense	(481)	850
(Loss) income from continuing operations before equity in (loss) income of subsidiaries	(31,567)	(8,318)
Equity in (loss) income of subsidiaries	22,875	21,798
(Loss) income from continuing operations		13,480
Loss from discontinued operations, net of taxes		(2,277)
Net (loss) income	(8,692)	11,203
Other comprehensive income:
Other comprehensive income (loss) of subsidiaries	543	2,109
Changes in pension and other employee benefit accounts, net of taxes	1,504	2,113
Currency translation adjustment, net	0	0
Total other comprehensive income	2,047	4,222
Comprehensive (loss) income	(6,645)	15,425
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	175,658	201,478
Cost of sales	135,980	158,580
Selling, general and administrative expenses	15,262	17,782
Amortization of intangible assets	1,119	1,344
Restructuring and other charges	192	1,972
Operating income	23,105	21,800
Interest expense, net	63	47
Intercompany interest (income) expense	282	245
Loss (gain) on early extinguishment of debt, net	0	0
Other (income) expense, net	(108)	14
(Loss) income from continuing operations before income taxes	22,868	21,494
Income tax (benefit) expense	152	122
(Loss) income from continuing operations before equity in (loss) income of subsidiaries	22,716	21,372
Equity in (loss) income of subsidiaries	159	1,643
(Loss) income from continuing operations		23,015
Loss from discontinued operations, net of taxes		(1,217)
Net (loss) income	22,875	21,798
Other comprehensive income:
Other comprehensive income (loss) of subsidiaries	721	177
Changes in pension and other employee benefit accounts, net of taxes	90	367
Currency translation adjustment, net	(268)	1,565
Total other comprehensive income	543	2,109
Comprehensive (loss) income	23,418	23,907
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales	653	185
Cost of sales	0	0
Selling, general and administrative expenses	223	182
Amortization of intangible assets	111	111
Restructuring and other charges	0	0
Operating income	319	(108)
Interest expense, net	0	0
Intercompany interest (income) expense	0	0
Loss (gain) on early extinguishment of debt, net	0	0
Other (income) expense, net	70	(60)
(Loss) income from continuing operations before income taxes	249	(48)
Income tax (benefit) expense	90	(14)
(Loss) income from continuing operations before equity in (loss) income of subsidiaries	159	(34)
Equity in (loss) income of subsidiaries	0	0
(Loss) income from continuing operations		(34)
Loss from discontinued operations, net of taxes		1,677
Net (loss) income	159	1,643
Other comprehensive income:
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	721	177
Total other comprehensive income	721	177
Comprehensive (loss) income	880	1,820
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
Loss (gain) on early extinguishment of debt, net	0	0
Other (income) expense, net	0	0
(Loss) income from continuing operations before income taxes	0	0
Income tax (benefit) expense	0	0
(Loss) income from continuing operations before equity in (loss) income of subsidiaries	0	0
Equity in (loss) income of subsidiaries	(14,342)	(34,644)
(Loss) income from continuing operations		(34,644)
Loss from discontinued operations, net of taxes		0
Net (loss) income	(14,342)	(34,644)
Other comprehensive income:
Other comprehensive income (loss) of subsidiaries	(3,311)	(6,508)
Changes in pension and other employee benefit accounts, net of taxes	0	0
Currency translation adjustment, net	0	0
Total other comprehensive income	(3,311)	(6,508)
Comprehensive (loss) income	$ (17,653)	$ (41,152)