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Revenue (Details)	3 Months Ended
	Mar. 31, 2019
Revenue [Abstract]
Number of principal reporting segments	4

X

- Definition

The number of reporting segments for an entity.

+ References

No definition available.

+ Details

Name:	fwrd_NumberOfPrincipalReportingSegments
Namespace Prefix:	fwrd_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Revenue [Abstract]

+ References

No definition available.

+ Details

Name:	fwrd_RevenueAbstract
Namespace Prefix:	fwrd_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration