Pension and Other Post Retirement Benefit Plans - Schedule of Future Expected Pension Payments (Detail) - Gentherm GmbH $ in Thousands	Dec. 31, 2020 USD ($)
United States
Defined Benefit Plan Disclosure [Line Items]
2021	$ 342
2022	342
2023	342
2024	342
2025	342
2026-2030	1,710
Total projected pension benefit payments	3,420
German Plan
Defined Benefit Plan Disclosure [Line Items]
2021	296
2022	291
2023	301
2024	295
2025	287
2026-2030	2,886
Total projected pension benefit payments	$ 4,356

Defined benefit plan, expected future benefit payments.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of benefit for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following current fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920

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Amount of benefit for defined benefit plan expected to be paid in next fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fifth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in fourth fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in third fiscal year following current fiscal year.

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Amount of benefit for defined benefit plan expected to be paid in second fiscal year following current fiscal year.

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