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REVENUE RECOGNITION (Details)	6 Months Ended
	Jun. 30, 2019 performance_obligation
Revenue from Contract with Customer [Abstract]
Number of separate and distinct performance obligations	3

X

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number Of Distinct Performance Obligations

+ References

No definition available.

+ Details

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Namespace Prefix:	wnc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration