Significant Accounting Policies (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Total tooling related assets	$ 3,881	$ 4,451
Inventories Net Of Progress Billings And Reserves [Member]
Total tooling related assets	3,482	3,654
Prepaid Expenses And Other Current Assets Net [Member]
Total tooling related assets	399	463
Other Assets [Member]
Total tooling related assets	$ 0	$ 334

Carrying amount as of the balance sheet date of capitalized costs of molds, dies, and other tools that will be used in producing products under a long-term supply arrangement.

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

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 99-5

-Paragraph 6

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 340

-SubTopic 10

-Section 25

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6387057&loc=d3e6169-108318

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 340

-SubTopic 10

-Section S99

-Paragraph 3

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6955238&loc=d3e105117-122735

Name:	us-gaap_PreproductionCostsRelatedToLongTermSupplyArrangementsAssetForMoldsDiesAndToolsOwned
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant