XML 42 R30.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Summary of Significant Accounting Policies (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Accounting Policies [Abstract] |
Summary of Allowance for Doubtful Accounts | The allowance for doubtful accounts related to accounts receivable and related activity are summarized below:
|  | Year Ended December 31, |
|  | 2023 |  |  | 2022 |  |  | 2021 |
Balance at beginning of year |  | $ | 1,220 |  |  | $ | 1,399 |  |  | $ | 1,161 |
Charged to costs and expenses |  |  | 195 |  |  |  | 1,088 |  |  |  | 1,066 |
Currency translation and other |  |  | 4 |  |  |  | — |  |  |  | (12 | )
Deductions from reserves |  |  | (248 | ) |  |  | (1,267 | ) |  |  | (816 | )
Balance at end of year |  | $ | 1,171 |  |  | $ | 1,220 |  |  | $ | 1,399 |
I
Estimated Useful Lives of Property and Equipment | Depreciation is computed using the straight-line method. The estimated useful lives of the Company’s Property and equipment are as follows:
Asset Category |  | Useful Life
Buildings and improvements |  | 1 to 30 years
Plant and equipment |  | 10 years
Production tooling |  | 2 to 10 years
Leasehold improvements |  | Term of lease
Information technology |  | 1 to 5 years
Fair Value and Corresponding Useful Lives for Acquired Intangibles Assets | Amortization of other intangible assets is computed using the straight-line method. The fair value and corresponding useful lives for acquired intangible assets are listed below as follows:
Asset Category |  | Useful Life
Customer relationships |  | 8 to 15 years
Technology |  | 5 to 12 years
Product development costs |  | 5 to 10 years
Trade names |  | Indefinite
Software development costs |  | 4 to 5 years

X
- Definition Schedule of useful life of property and equipment table. + References No definition available. + Details
Name: | thrm_ScheduleOfUsefulLifeOfPropertyAndEquipmentTableTextBlock
Namespace Prefix: | thrm_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of allowance for credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-13 + Details
Name: | us-gaap_AccountsReceivableAllowanceForCreditLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of goodwill and intangible assets, which may be broken down by segment or major class. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482573/350-20-50-1 + Details
Name: | us-gaap_ScheduleOfIntangibleAssetsAndGoodwillTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration