Restructuring and Impairment Charges (Summary of Severance Accrual Activity) (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]
Beginning Balance		$ 5,221	$ 0
Provisions	10,080
Payments	(4,859)
Ending Balance		5,221	0
Streamlining and restructuring related activites [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		1,447	0
Provisions	5,445
Payments	(3,998)
Ending Balance		1,447	0
Bremen facility shut-down [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		0	0
Provisions	861
Payments	(861)
Ending Balance		0	0
Curamik finishing operations relocated to Hungary [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance		3,774	0
Provisions	3,774
Payments	0
Ending Balance		$ 3,774	$ 0