The Company and Subsequent Events	3 Months Ended
Mar. 31, 2018
Company And Subsequent Events [Abstract]
The Company and Subsequent Events	Note 1 – The Company and Subsequent Events Gentherm Incorporated is a global technology and industry leader in the design, development, and manufacturing of innovative thermal management technologies. Unless the context otherwise requires, the terms “Company”, “we”, “us” and “our” used herein refer to Gentherm Incorporated and its consolidated subsidiaries. Our products provide solutions for automotive passenger comfort and convenience, battery thermal management, remote power generation, patient temperature management, environmental product testing and other consumer and industrial temperature control needs. Our automotive products can be found on the vehicles of nearly all major automotive manufacturers operating in North America, Europe and Asia. We operate in locations aligned with our major customers’ product strategies to provide locally enhanced design, integration and production capabilities and to identify future thermal technology product opportunities in both automotive and other markets. We concentrate our research on the development of new technologies and new applications from existing technologies to create product and market opportunities for a wide array of thermal management solutions. U.S. Tax Reform The Tax Cuts and Jobs Act (the “Tax Act”) was enacted on December 22, 2017. The Tax Act reduces the U.S. federal corporate tax rate from 35% to 21%, requires companies to pay a one-time transition tax on all offshore earnings that were previously tax deferred and creates new taxes on certain foreign sourced earnings. As of December 31, 2017, and in accordance with guidance provided by Staff Accounting Bulletin No. 118 (SAB 118), the Company had not completed its accounting for the tax effects of the Tax Act; however, in certain cases, as described below the Company made a provisional estimate of the effects on our existing deferred tax balances and the one-time transition tax. For the year ended December 31, 2017, the provision for income taxes includes a provisional income tax expense of $20,153 related to items for which the Company was able to determine a reasonable estimate. For the three-month period ended March 31, 2018, there have been no changes to the provisional income tax expenses booked in 2017. In all cases, we will continue to make and refine our calculations as additional analysis is completed. In addition, the Company’s estimates may be affected as additional regulatory guidance is issued with respect to the Tax Act. Any adjustments to the provisional amounts will be recognized as a component of the provision for income taxes in the period in which such adjustments are determined, but in any event, no later than the fourth quarter of 2018, in accordance with SAB 118. Deferred tax assets and liabilities The Company remeasured its U.S. deferred tax assets and liabilities at 21%. However, the Company is still analyzing certain aspects of the Tax Act and refining the calculations, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts. In the year ended December 31, 2017, the provision for income taxes included provisional income tax expense of $5,808 related to the remeasurement of deferred tax balances. For the three-month period ended March 31, 2018, there have been no changes to the provisional income tax expenses in 2017. Transition Tax on Deferred Foreign Earnings The one-time transition tax is based on the Company’s post-1986 earnings and profits (“E&P”) that were previously deferred from U.S. income taxes. In the year ended December 31, 2017, the provision for income taxes included provisional income tax expense of $23,923 related to the one-time transition tax liability of the Company’s foreign subsidiaries. The Company has not completed its calculation of the total post-1986 E&P for these foreign subsidiaries. Further, the transition tax is based in part on the amount of those earnings held in cash and other specified assets. This amount may change when the Company finalizes the calculation of post-1986 E&P previously deferred from U.S. income taxes and the amounts held in cash or other specified assets. For the three-month period ended March 31, 2018, there have been no changes to the provisional income tax expenses booked in 2017. A benefit of $9,578 was included in the provision for income taxes for the year-ended December 31, 2017 to offset the one-time transition tax related to the previous deferred tax liability that existed for the undistributed foreign earnings that were not permanently reinvested. For the three-month period ended March 31, 2018, there have been no changes to the provisional income tax benefit booked in 2017 related to this item. However, we continue to recognize a deferred tax liability related to foreign withholding tax that will be incurred for undistributed foreign earnings that are not permanently reinvested. Note 1 – The Company and Subsequent Events – Continued Subsequent Events We have evaluated subsequent events through the date that our consolidated condensed financial statements are issued. No events have taken place that meet the definition of a subsequent event requiring adjustments to or disclosures in this Form 10-Q.

Note 1 – The Company and Subsequent Events

Gentherm Incorporated is a global technology and industry leader in the design, development, and manufacturing of innovative thermal management technologies. Unless the context otherwise requires, the terms “Company”, “we”, “us” and “our” used herein refer to Gentherm Incorporated and its consolidated subsidiaries. Our products provide solutions for automotive passenger comfort and convenience, battery thermal management, remote power generation, patient temperature management, environmental product testing and other consumer and industrial temperature control needs. Our automotive products can be found on the vehicles of nearly all major automotive manufacturers operating in North America, Europe and Asia. We operate in locations aligned with our major customers’ product strategies to provide locally enhanced design, integration and production capabilities and to identify future thermal technology product opportunities in both automotive and other markets. We concentrate our research on the development of new technologies and new applications from existing technologies to create product and market opportunities for a wide array of thermal management solutions.

U.S. Tax Reform

The Tax Cuts and Jobs Act (the “Tax Act”) was enacted on December 22, 2017. The Tax Act reduces the U.S. federal corporate tax rate from 35% to 21%, requires companies to pay a one-time transition tax on all offshore earnings that were previously tax deferred and creates new taxes on certain foreign sourced earnings. As of December 31, 2017, and in accordance with guidance provided by Staff Accounting Bulletin No. 118 (SAB 118), the Company had not completed its accounting for the tax effects of the Tax Act; however, in certain cases, as described below the Company made a provisional estimate of the effects on our existing deferred tax balances and the one-time transition tax. For the year ended December 31, 2017, the provision for income taxes includes a provisional income tax expense of $20,153 related to items for which the Company was able to determine a reasonable estimate. For the three-month period ended March 31, 2018, there have been no changes to the provisional income tax expenses booked in 2017. In all cases, we will continue to make and refine our calculations as additional analysis is completed. In addition, the Company’s estimates may be affected as additional regulatory guidance is issued with respect to the Tax Act. Any adjustments to the provisional amounts will be recognized as a component of the provision for income taxes in the period in which such adjustments are determined, but in any event, no later than the fourth quarter of 2018, in accordance with SAB 118.

Deferred tax assets and liabilities

The Company remeasured its U.S. deferred tax assets and liabilities at 21%. However, the Company is still analyzing certain aspects of the Tax Act and refining the calculations, which could potentially affect the measurement of these balances or potentially give rise to new deferred tax amounts. In the year ended December 31, 2017, the provision for income taxes included provisional income tax expense of $5,808 related to the remeasurement of deferred tax balances. For the three-month period ended March 31, 2018, there have been no changes to the provisional income tax expenses in 2017.

Transition Tax on Deferred Foreign Earnings

The one-time transition tax is based on the Company’s post-1986 earnings and profits (“E&P”) that were previously deferred from U.S. income taxes. In the year ended December 31, 2017, the provision for income taxes included provisional income tax expense of $23,923 related to the one-time transition tax liability of the Company’s foreign subsidiaries. The Company has not completed its calculation of the total post-1986 E&P for these foreign subsidiaries. Further, the transition tax is based in part on the amount of those earnings held in cash and other specified assets. This amount may change when the Company finalizes the calculation of post-1986 E&P previously deferred from U.S. income taxes and the amounts held in cash or other specified assets. For the three-month period ended March 31, 2018, there have been no changes to the provisional income tax expenses booked in 2017. A benefit of $9,578 was included in the provision for income taxes for the year-ended December 31, 2017 to offset the one-time transition tax related to the previous deferred tax liability that existed for the undistributed foreign earnings that were not permanently reinvested. For the three-month period ended March 31, 2018, there have been no changes to the provisional income tax benefit booked in 2017 related to this item. However, we continue to recognize a deferred tax liability related to foreign withholding tax that will be incurred for undistributed foreign earnings that are not permanently reinvested.

Note 1 – The Company and Subsequent Events – Continued

Subsequent Events

We have evaluated subsequent events through the date that our consolidated condensed financial statements are issued. No events have taken place that meet the definition of a subsequent event requiring adjustments to or disclosures in this Form 10-Q.