Restructuring and Impairment Charges (Summary of Severance Accrual Activity) (Detail) (Employee Severance [Member], USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014
Restructuring Reserve [Roll Forward]
Balance at January 1, 2014	$ 695us-gaap_RestructuringReserve
Provisions	0
Payments	(695)us-gaap_PaymentsForRestructuring
Balance at December 31, 2014	0us-gaap_RestructuringReserve
Streamlining and restructuring related activites [Member]
Restructuring Reserve [Roll Forward]
Balance at January 1, 2014	695
Provisions
Payments	(695)
Balance at December 31, 2014	0
Bremen facility shut-down [Member]
Restructuring Reserve [Roll Forward]
Balance at January 1, 2014	0
Provisions	0
Payments	0
Balance at December 31, 2014	0
Curamik finishing operations relocated to Hungary [Member]
Restructuring Reserve [Roll Forward]
Balance at January 1, 2014	0
Provisions	0
Payments	0
Balance at December 31, 2014	$ 0

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 420

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SAB TOPIC 5.P.4(b))

-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section P

-Subsection 3, 4

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Net total Increase or Decrease in the accrual for restructuring costs during the reporting period.

+ References

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_RestructuringReserveRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration