XML 102 R74.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Segment Reporting (Detail) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Segment Reporting Information [Line Items] |  |  |
Total product revenues | $ 554,979 | $ 369,588 | $ 112,403
Total product revenues in percentage | 100.00% | 100.00% | 100.00%
United States |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 233,737 | 134,010 | 41,907
Total product revenues in percentage | 42.00% | 36.00% | 37.00%
Germany |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 67,132 | 40,833 | 705
Total product revenues in percentage | 12.00% | 11.00% | 1.00%
China |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 55,674 | 31,193 | 1,178
Total product revenues in percentage | 10.00% | 9.00% | 1.00%
Korea |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 42,878 | 37,913 | 18,691
Total product revenues in percentage | 8.00% | 10.00% | 16.00%
Japan |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 35,279 | 25,295 | 21,058
Total product revenues in percentage | 6.00% | 7.00% | 19.00%
Canada |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 17,582 | 12,305 | 4,246
Total product revenues in percentage | 3.00% | 3.00% | 4.00%
Czech Republic |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 15,361 | 11,722 |
Total product revenues in percentage | 3.00% | 3.00% |
Mexico |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 14,988 | 21,529 | 15,970
Total product revenues in percentage | 3.00% | 6.00% | 14.00%
United Kingdom |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 13,194 | 10,686 | 8,595
Total product revenues in percentage | 2.00% | 3.00% | 8.00%
Other |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | 59,154 | 44,102 | 53
Total product revenues in percentage | 11.00% | 12.00% |
Foreign |  |  |
Segment Reporting Information [Line Items] |  |  |
Total product revenues | $ 321,242 | $ 235,578 | $ 70,496
Total product revenues in percentage | 58.00% | 64.00% | 63.00%

X
- Definition Sales revenues goods net percentage. + References No definition available. + Details
Name: | thrm_SalesRevenuesGoodsNetPercentage
Namespace Prefix: | thrm_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1(a)) -URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 + Details
Name: | us-gaap_SalesRevenueGoodsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration