Restructuring, Restatement Related Costs, Post-Emergence Fees and Other - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010 UNITED KINGDOM	Dec. 31, 2012 GERMANY	Dec. 31, 2012 Fiscal Year 2011	Dec. 31, 2012 Fiscal Years 2012 Restructuring Program	Dec. 31, 2012 Cash Charges	Dec. 31, 2011 Cash Charges	Dec. 31, 2012 Non-Cash Charges	Dec. 31, 2011 Non-Cash Charges	Dec. 31, 2013 Scenario, Forecast Cash Charges	Dec. 31, 2013 Scenario, Forecast Non-Cash Charges
Restructuring Cost and Reserve [Line Items]
Restructuring plan					In November 2011, the Company announced a strategic initiative ("2011 restructuring"), which aims to consolidate operations to reduce the Company's cost structure and improve operational efficiency. As part of this initiative, the Company eliminated facilities through consolidation of certain manufacturing, sales and distribution facilities and divestiture of businesses.
Restructuring costs	$ 6,057,000	$ 1,967,000					$ 4,109,000	$ 1,061,000	$ 1,948,000	$ 906,000	$ 1,200,000	$ 100,000
Severance cost						1,800,000
Restructuring benefit related to sale of inventory			100,000
Termination charges				$ 300,000