XML 52 R43.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Classification of Recoverable Customer Engineering, Development and Tooling Costs related to Long-Term Supply Agreements (Detail) (USD $) In Millions, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Pre Production Costs Related to Long Term Supply Arrangements [Line Items] |  |
Recoverable customer E&D and tooling | $ 187.1 | $ 196.8
Other Current Assets |  |
Pre Production Costs Related to Long Term Supply Arrangements [Line Items] |  |
Recoverable customer E&D and tooling | 134.2 | 141.8
Other Long-term Assets |  |
Pre Production Costs Related to Long Term Supply Arrangements [Line Items] |  |
Recoverable customer E&D and tooling | $ 52.9 | $ 55.0

X
- Details
Name: | lea_PreProductionCostsRelatedToLongTermSupplyArrangementsLineItems
Namespace Prefix: | lea_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The carrying amount as of the balance sheet date of capitalized preproduction costs incurred on long-term supply arrangements, including recoverable costs to design and develop products. + References Reference 1: 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 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 10 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6387057&loc=d3e6233-108318 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 340 -SubTopic 10 -Section S99 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=27011391&loc=d3e105117-122735 + Details
Name: | us-gaap_PreproductionCostsRelatedToLongTermSupplyArrangementsCostsCapitalized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant