XML 33 R47.htm IDEA: XBRL DOCUMENT v3.2.0.727

Pre-Production Costs Related to Long-Term Supply Agreements - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 27, 2015	Jun. 28, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Capitalized pre-production E&D costs	$ 99.5	$ 103.6
Capitalized pre-production tooling costs related to customer-owned tools	68.2	91.5
Cash collected related to E&D and tooling costs	$ 142.0	$ 202.6

X

- Definition

Amount of recoverable preproduction engineering and design costs related to long term supply agreements capitalized during the reporting period.

+ References

No definition available.

+ Details

Name:	lea_PreproductionEngineeringAndDevelopmentCostsRelatedToLongTermSupplyArrangementsCostsCapitalized
Namespace Prefix:	lea_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount of recoverable preproduction tooling costs related to long term supply agreements capitalized during the reporting period.

+ References

No definition available.

+ Details

Name:	lea_PreproductionToolingCostsRelatedToLongTermSupplyArrangementsCostsCapitalized
Namespace Prefix:	lea_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Cash recoveries of preproduction engineering, design and tooling costs incurred on behalf of a customer.

+ References

No definition available.

+ Details

Name:	lea_RecoveriesOfPreproductionCostsRelatedToLongTermSupplyAgreements
Namespace Prefix:	lea_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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