XML 42 R30.htm IDEA: XBRL DOCUMENT
v3.19.2

Revenue Recognition (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2019
Revenue Recognition And Deferred Revenue [Abstract] |
Schedule of Unearned Revenue by Segment Table Text Block | Unearned revenue by segment was as follows:
| June 30, 2019 |  |  | December 31, 2018 |
Automotive | $ | 1,567 |  |  | $ | 1,597 |
Industrial |  | — |  |  |  | — |
Total | $ | 1,567 |  |  | $ | 1,597 |
Schedule of Changes in Unearned Revenue | Note 10 – Revenue Recognition – Continued Changes in unearned revenue were as follows:
Six Months Ended June 30, 2019 |  |  |
Balance, beginning of period | $ | 1,597 |
Additions to unearned revenue |  | 499 |
Reclassified to revenue |  | (308 | )
Reclassified to held for sale |  | (219 | )
Currency impacts |  | (2 | )
Balance, end of period | $ | 1,567 |

X
- Definition Schedule of changes in unearned revenue. + References No definition available. + Details
Name: | thrm_ScheduleOfChangesInUnearnedRevenueTableTextBlock
Namespace Prefix: | thrm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of unearned revenue by segment. + References No definition available. + Details
Name: | thrm_ScheduleOfUnearnedRevenueBySegmentTableTextBlock
Namespace Prefix: | thrm_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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