Segment Information - Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2013		Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2012		Sep. 28, 2012	Jun. 29, 2012	Mar. 30, 2012	Dec. 31, 2013 segments		Dec. 31, 2012		Dec. 30, 2011
Segment Reporting Information [Line Items]
Third party, net sales	$ 196,431		$ 227,835	$ 229,861	$ 172,545	$ 195,492		$ 219,173	$ 223,792	$ 198,683	$ 826,672		$ 837,140		$ 933,678
Income (loss) from operations	(4,121)		8,687	9,884	(7,432)	(3,034)		6,610	8,065	(286)	7,018		11,355		10,294
Depreciation and amortization	9,542		8,514	8,450	8,593	8,846		8,624	8,633	8,681	35,099		34,784		37,194
Capital expenditures											(10,742)		(7,140)		(10,151)
Total assets	571,973	[1]				594,422	[1]				571,973	[1]	594,422	[1]	619,246	[1]
Multiemployer pension withdrawal											0		39		1,200
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments [Abstract]
Number of reportable segments											4
U.S. Residential Products
Segment Reporting Information [Line Items]
Third party, net sales											290,911		282,050		306,543
Income (loss) from operations											18,911		22,489		18,226	[2]
Depreciation and amortization											11,820		11,674		11,994
Capital expenditures											(2,787)		(1,495)		(996)
Total assets	163,773	[1]				173,719	[1]				163,773	[1]	173,719	[1]	174,835	[1]
Multiemployer pension withdrawal															1,200
U.S. Commercial Products
Segment Reporting Information [Line Items]
Third party, net sales											278,709		292,823		301,570
Income (loss) from operations											(5,390)		(1,399)		(3,901)
Depreciation and amortization											11,333		10,774		11,004
Capital expenditures											(2,016)		(1,255)		(3,558)
Total assets	107,053	[1]				115,525	[1]				107,053	[1]	115,525	[1]	117,709	[1]
European Roll Coated Aluminum
Segment Reporting Information [Line Items]
Third party, net sales											193,721		196,606		244,050
Income (loss) from operations											11,004		9,208		13,619
Depreciation and amortization											9,509		9,455		10,790
Capital expenditures											(3,224)		(2,275)		(2,144)
Total assets	228,514	[1]				221,950	[1]				228,514	[1]	221,950	[1]	234,513	[1]
European Engineered Products
Segment Reporting Information [Line Items]
Third party, net sales											64,709		67,650		83,529
Income (loss) from operations											(6,849)		(6,586)		(2,055)
Depreciation and amortization											1,846		2,480		3,086
Capital expenditures											(1,612)		(627)		(1,629)
Total assets	52,331	[1]				55,898	[1]				52,331	[1]	55,898	[1]	63,579	[1]
Segment Reporting, Disclosure of Other Information about Entity's Reportable Segments [Abstract]
Number of reportable segments											1
Other Non-Allocated
Segment Reporting Information [Line Items]
Third party, net sales											0		0		0
Income (loss) from operations											(10,658)		(12,357)		(15,595)
Depreciation and amortization											591		401		320
Capital expenditures											(1,103)		(1,488)		(1,824)
Total assets	20,302	[1]				27,330	[1]				20,302	[1]	27,330	[1]	28,610	[1]
Eliminations
Segment Reporting Information [Line Items]
Third party, net sales											(1,378)		(1,989)		(2,014)
Income (loss) from operations											0		0
Depreciation and amortization											0		0		0
Capital expenditures											0		0		0
Total assets	0	[1]				0	[1]				0	[1]	0	[1]	0	[1]
Operating Segments
Segment Reporting Information [Line Items]
Third party, net sales											826,672		837,140		933,678
Operating Segments | U.S. Residential Products
Segment Reporting Information [Line Items]
Third party, net sales											290,185		281,099		305,366
Operating Segments | U.S. Commercial Products
Segment Reporting Information [Line Items]
Third party, net sales											278,274		292,304		301,286
Operating Segments | European Roll Coated Aluminum
Segment Reporting Information [Line Items]
Third party, net sales											193,504		196,087		243,497
Operating Segments | European Engineered Products
Segment Reporting Information [Line Items]
Third party, net sales											64,709		67,650		83,529
Operating Segments | Other Non-Allocated
Segment Reporting Information [Line Items]
Third party, net sales											0		0		0
Operating Segments | Eliminations
Segment Reporting Information [Line Items]
Third party, net sales											0		0		0
Segment Reconciling Items
Segment Reporting Information [Line Items]
Third party, net sales											0		0		0
Segment Reconciling Items | U.S. Residential Products
Segment Reporting Information [Line Items]
Third party, net sales											726		951		1,177
Segment Reconciling Items | U.S. Commercial Products
Segment Reporting Information [Line Items]
Third party, net sales											435		519		284
Segment Reconciling Items | European Roll Coated Aluminum
Segment Reporting Information [Line Items]
Third party, net sales											217		519		553
Segment Reconciling Items | European Engineered Products
Segment Reporting Information [Line Items]
Third party, net sales											0		0		0
Segment Reconciling Items | Other Non-Allocated
Segment Reporting Information [Line Items]
Third party, net sales											0		0		0
Segment Reconciling Items | Eliminations
Segment Reporting Information [Line Items]
Third party, net sales											$ (1,378)		$ (1,989)		$ (2,014)

[1] Segment assets include cash, accounts receivable, inventories, other current assets, fixed assets, goodwill, intangibles, and other long term assets. Other non-allocated assets include all corporate assets, as well as deferred taxes and income taxes receivable.

[2] Income from operations in our U.S. Residential Products Segment for the year ended December 30, 2011 included a $1.2 million charge for the early exit from a multiemployer pension plan.