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Goodwill and Other Intangibles - Additional Information (Detail) - USD ($) $ in Thousands |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Jun. 19, 2020 | Feb. 28, 2020 | Dec. 31, 2020 | Dec. 31, 2018 | Dec. 31, 2019
Goodwill And Other Intangible Assets [Line Items] |  |  |  |  |
Gain on sale of intangible assets |  |  | $ 1,978 |  |
Intangible assets |  |  | 46,421 |  | $ 49,783
Other intangible assets |  |  | 9,226 | $ 14,043 | 10,068
Impairment on assets held for sale |  |  |  | 2,190 |
Goodwill impairment charges |  |  |  | 6,151 |
Other intangible impairment charges |  |  |  | $ 3,135 |
Patents and Intellectual Property |  |  |  |  |
Goodwill And Other Intangible Assets [Line Items] |  |  |  |  |
Proceeds from sale of intangible assets | $ 2,055 |  |  |  |
Patents and Intellectual Property | Other Income |  |  |  |  |
Goodwill And Other Intangible Assets [Line Items] |  |  |  |  |
Gain on sale of intangible assets | $ 1,978 |  |  |  |
Customer Relationship |  |  |  |  |
Goodwill And Other Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  | 34,383 |  | 38,521
Technology |  |  |  |  |
Goodwill And Other Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  | 6,540 |  | $ 5,240
Development Stage Technology Company |  |  |  |  |
Goodwill And Other Intangible Assets [Line Items] |  |  |  |  |
Automotive patents and technology acquired |  | $ 3,141 |  |  |
Defensive intangible assets, useful life |  | 6 years |  |  |
Stihler Electronic GmbH | Customer Relationship |  |  |  |  |
Goodwill And Other Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  | $ 3,420 |  |
Acquired intangible assets useful life |  |  | 9 years |  |
Stihler Electronic GmbH | Technology |  |  |  |  |
Goodwill And Other Intangible Assets [Line Items] |  |  |  |  |
Intangible assets |  |  | $ 538 |  |
Acquired intangible assets useful life |  |  | 7 years |  |

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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 926 -SubTopic 20 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16265-109275 + Details
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- Definition Amount of gain (loss) on sale or disposal of intangible assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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