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Segment Reporting - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Non-US
Segment Reporting Information [Line Items]
Percent of consolidated net sales	60.00%	57.00%	61.00%	58.00%
Singapore
Segment Reporting Information [Line Items]
Percent of consolidated net sales	10.00%		10.00%	10.00%
Mobile connectivity | Mobile Comm Product Sales
Segment Reporting Information [Line Items]
Percent of consolidated net sales	19.00%	18.00%	17.00%	18.00%
Mobile connectivity | VSAT Airtime Service Sales
Segment Reporting Information [Line Items]
Percent of consolidated net sales	53.00%	55.00%	52.00%	54.00%
Inertial navigation | FOG System Sales
Segment Reporting Information [Line Items]
Percent of consolidated net sales	17.00%	16.00%	16.00%	15.00%

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- Definition

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- Definition

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