XML 82 R69.htm IDEA: XBRL DOCUMENT
v3.20.2

SEGMENTS - Narrative (Details) | 9 Months Ended
--- | ---
Sep. 30, 2020 product_category business_unit segment
Segment Reporting Information [Line Items] |
Number of segments | segment | 3
Number of products | product_category | 4
Diversified Products |
Segment Reporting Information [Line Items] |
Number of strategic business units | business_unit | 3

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment. + References No definition available. + Details
Name: | us-gaap_NumberOfReportingUnits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Number Of Product Categories + References No definition available. + Details
Name: | wnc_NumberOfProductCategories
Namespace Prefix: | wnc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=wnc_DiversifiedProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |