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v2.4.1.9

Fair Value of Plan Assets (Detail) (Gentherm GmbH, USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013
Gentherm GmbH |  |
Change in plan assets: |  |
Plan assets at beginning of year | $ 2,340 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / dei_LegalEntityAxis = thrm_GenthermGmbHMember | $ 1,548 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / dei_LegalEntityAxis = thrm_GenthermGmbHMember
Actual return on plan assets | 89 us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets / dei_LegalEntityAxis = thrm_GenthermGmbHMember | 59 us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets / dei_LegalEntityAxis = thrm_GenthermGmbHMember
Net contributions | 958 us-gaap_DefinedBenefitPlanContributionsByPlanParticipants / dei_LegalEntityAxis = thrm_GenthermGmbHMember | 664 us-gaap_DefinedBenefitPlanContributionsByPlanParticipants / dei_LegalEntityAxis = thrm_GenthermGmbHMember
Actuarial gains/(losses) | 531 thrm_DefinedBenefitPlanRecognizedActuarialNetGainLoss / dei_LegalEntityAxis = thrm_GenthermGmbHMember | (24)thrm_DefinedBenefitPlanRecognizedActuarialNetGainLoss / dei_LegalEntityAxis = thrm_GenthermGmbHMember
Exchange rate impact | (303)us-gaap_DefinedBenefitPlanOtherCosts / dei_LegalEntityAxis = thrm_GenthermGmbHMember | 93 us-gaap_DefinedBenefitPlanOtherCosts / dei_LegalEntityAxis = thrm_GenthermGmbHMember
Plan assets at end of year | $ 3,615 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / dei_LegalEntityAxis = thrm_GenthermGmbHMember | $ 2,340 us-gaap_DefinedBenefitPlanFairValueOfPlanAssets / dei_LegalEntityAxis = thrm_GenthermGmbHMember

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- Definition Defined benefit plan recognized actuarial net gain loss. + References No definition available. + Details
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- Definition The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Actual Return on Plan Assets (Component of Net Periodic Postretirement Benefit Cost) -URI http://asc.fasb.org/extlink&oid=6504192 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Actual Return on Plan Assets (Component of Net Periodic Pension Cost) -URI http://asc.fasb.org/extlink&oid=6504226 + Details
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- Definition The amount of contributions made by plan participants. This item represents a periodic increase to the plan obligation and an increase to plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(4) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 + Details
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- Definition Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 35 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=29635418&loc=d3e12355-114930 + Details
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- Definition Amount of other defined benefit plan costs. + References No definition available. + Details
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