XML 42 R33.htm IDEA: XBRL DOCUMENT
v3.25.1

Income Taxes (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2025
Income Tax Disclosure [Abstract] |
Summary of Provision for Income Taxes and Corresponding Effective Tax Rate | A summary of the provision for income taxes and the corresponding effective tax rate for the three months ended March 31, 2025 and 2024, is shown below:
|  | Three Months Ended March 31, |
|  | 2025 |  |  | 2024 |
Income tax expense |  | $ | 2,212 |  |  | $ | 3,542 |
Earnings before income tax |  | $ | 2,084 |  |  | $ | 18,327 |
Effective tax rate |  |  | 106.1 | % |  |  | 19.3 | %

X
- Definition Summary of provision for income taxes and corresponding effective tax rate. + References No definition available. + Details
Name: | thrm_SummaryOfProvisionForIncomeTaxesAndCorrespondingEffectiveTaxRateTableTextBlock
Namespace Prefix: | thrm_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration