Other Operating Charges (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 30, 2011
Other Operating Costs [Line Items]
Other operating charges	$ 9,165,000	$ 6,425,000	$ 8,404,000
Operating Expense
Other Operating Costs [Line Items]
Other operating charges	9,165,000	6,425,000	8,404,000
Debt issuance cost			2,900,000
Operating Expense | U.S. and Europe
Other Operating Costs [Line Items]
Other severance and nonrecurring costs	1,700,000	1,700,000	4,100,000
Operating Expense | North America
Other Operating Costs [Line Items]
Nondebtor reorganization items, legal and advisory professional fees		1,000,000
Operating Expense | Europe
Other Operating Costs [Line Items]
Nondebtor reorganization items, legal and advisory professional fees			1,200,000
U.S. Residential Products | Operating Expense
Other Operating Costs [Line Items]
Other operating charges	289,000	590,000	1,027,000
U.S. Residential Products | Operating Expense | North America
Other Operating Costs [Line Items]
Business combination, acquisition related costs		300,000
U.S. Commercial Products | Operating Expense
Other Operating Costs [Line Items]
Other operating charges	621,000	290,000	893,000
European Roll Coated Aluminum | Operating Expense
Other Operating Costs [Line Items]
Other operating charges	497,000	683,000	0
European Engineered Products | Operating Expense
Other Operating Costs [Line Items]
Other operating charges	5,472,000	3,406,000	682,000
European Engineered Products | Operating Expense | U.K.
Other Operating Costs [Line Items]
Relocation and plant consolidation costs	5,500,000	3,400,000
Other severance and nonrecurring costs	1,900,000	3,200,000
Capitalized computer software, impairments	1,100,000
European Engineered Products | Operating Expense | U.K. | Fair Value, Inputs, Level 1
Other Operating Costs [Line Items]
Asset impairment charges	1,600,000
European Engineered Products | Operating Expense | France
Other Operating Costs [Line Items]
Other severance and nonrecurring costs	900,000	200,000
Other Non-Allocated | Operating Expense
Other Operating Costs [Line Items]
Other operating charges	2,286,000	1,456,000	5,802,000
Transition service agreement costs	$ 2,000,000