Supplemental Guarantor Condensed Consolidating Financial Statements - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 30, 2013	Mar. 31, 2012
Condensed Financial Statements, Captions [Line Items]
Selling, general and administrative expenses allocated from Lear	$ 31.3	$ 27.0
7.875% Senior Notes due 2018
Condensed Financial Statements, Captions [Line Items]
Long-term debt, aggregate principal amount	280
8.125% Senior Notes due 2020
Condensed Financial Statements, Captions [Line Items]
Long-term debt, aggregate principal amount	280
4.75% Senior Notes due 2023
Condensed Financial Statements, Captions [Line Items]
Long-term debt, aggregate principal amount	$ 500

The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

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

-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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