Restructuring Impairment Charges - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended							3 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 High Performance Foams	Jun. 30, 2012 High Performance Foams Contract Termination [Member]	Jun. 30, 2012 High Performance Foams Employee Severance	Jun. 30, 2012 High Performance Foams Asset impairments [Member]	Jun. 30, 2012 High Performance Foams Facility Closing [Member]	Jun. 30, 2012 Other Non-woven composite materials products	Dec. 31, 2011 Other Non-woven composite materials products
Restructuring Cost and Reserve [Line Items]
Expenses and charges related to the termination of the operations					$ 3,100,000	$ 900,000	$ 800,000	$ 1,100,000	$ 300,000
Restructuring and related costs					1,500,000
Net sales	$ 126,671,000	$ 143,501,000	$ 248,044,000	$ 279,429,000						$ 1,400,000	$ 4,800,000