Derivative Instruments, Net Gain (Loss) on Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net Gain (Loss) on Derivative Instruments [Abstract]
Interest rate swap - change in fair value	$ 25	$ (1)	$ (49)	$ (89)
Foreign exchange contracts	0	(45)	17	25
Remeasurement of related contract receivables, billings-in-excess of revenue earned, and subcontractor accruals	6	(15)	67	(5)
Gain (loss) on derivative instruments, net	$ 31	$ (61)	$ 35	$ (69)

Amount of gain (loss) recognized in earnings in the period due to Gain (loss) on remeasurement of related contract receivables, billings in excess of revenue earned, and subcontractor accruals.

No definition available.

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- References

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- Definition

Aggregate net gain (loss) on all derivative instruments recognized in earnings during the period, before tax effects.

+ References

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- Definition

Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959

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Amount of gain (loss) included in earnings for the period from the increase (decrease) in fair value of interest rate derivatives not designated as hedging instruments.

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