XML 48 R39.htm IDEA: XBRL DOCUMENT v3.23.3

Segment Information (Schedule of Segment Reporting Information, by Segment - Schedule of Segment Reporting Information, by Segment (Parenthetical) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting [Abstract]
Loss On Pension Settlement	$ 313	$ 8,105	$ 313	$ 8,105

X

- Definition

Income loss on pension settlement.

+ References

No definition available.

+ Details

Name:	rail_IncomeLossOnPensionSettlement
Namespace Prefix:	rail_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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