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PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Property, Plant and Equipment [Abstract] |  |  |
Depreciation expense | $ 24,300 | $ 24,000 | $ 20,200
Finance lease, right-of-use asset, net of accumulated amortization | 2,658 | 2,802 |
Finance lease, right-of-use asset, accumulated amortization | $ 2,000 | $ 1,800 |

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- Definition Amount, after accumulated amortization, of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918627-209977 + Details
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Period Type: | instant

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- Definition Amount of accumulated amortization of right-of-use asset from finance lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123408670&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 45 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123391704&loc=SL77918638-209977 + Details
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- References No definition available. + Details
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- Definition General and administrative expenses cost of goods sold depreciation. + References No definition available. + Details
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Namespace Prefix: | wnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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