Restructuring, Restatement Related Costs, Post-Emergence Fees and Other - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 GERMANY	Dec. 31, 2012 Fiscal Years 2012 Restructuring Program	Dec. 31, 2013 2013 Restructuring	Dec. 31, 2013 2013 Restructuring Severance And Other Costs	Dec. 31, 2013 2011 Restructuring Facility	Dec. 31, 2012 2011 Restructuring	Dec. 31, 2011 2011 Restructuring	Dec. 31, 2014 Scenario, Forecast
Restructuring Cost and Reserve [Line Items]
Restructuring plan								In November 2011, the Company announced a strategic initiative (“2011 restructuring”), which aimed to consolidate operations to reduce the Company’s cost structure and improve operational efficiency. In total, eleven facilities have been exited as part of the 2011 restructuring plan. These eliminations resulted in the consolidation of the manufacturing facilities of the scientific lasers products and the optics products, consolidation of the Company’s German operations into one facility, and consolidation of the laser scanners business into the Company’s Bedford, MA manufacturing facility. Included in the eleven facilities exited are five facilities exited as part of the Semiconductor and Laser Systems business divestitures.
Number of facilities exited								11
Severance costs					$ 1,800,000
Restructuring charges	5,057,000	8,051,000	2,048,000			2,766,000	2,600,000	2,283,000	6,057,000	1,967,000
Termination charges				300,000
Cash payments	$ 5,277,000	$ 5,376,000									$ 1,500,000