Restructuring Impairment Charges - Summary of Severance Accrual Activity (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 5,221
Provisions	0
Payments	(1,736)
Ending Balance	3,485
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	1,447
Provisions	0
Payments	(981)
Ending Balance	466
Curamik finishing operations relocated to Hungary [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	3,774
Provisions	0
Payments	(755)
Ending Balance	$ 3,019